diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/sor.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/sor.c | 1864 |
1 files changed, 1168 insertions, 696 deletions
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c index 4ffe3794e6d3..81226a4953c1 100644 --- a/drivers/gpu/drm/tegra/sor.c +++ b/drivers/gpu/drm/tegra/sor.c @@ -8,6 +8,7 @@ #include <linux/debugfs.h> #include <linux/gpio.h> #include <linux/io.h> +#include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> @@ -17,11 +18,14 @@ #include <soc/tegra/pmc.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_debugfs.h> #include <drm/drm_dp_helper.h> +#include <drm/drm_file.h> #include <drm/drm_panel.h> #include <drm/drm_scdc_helper.h> #include "dc.h" +#include "dp.h" #include "drm.h" #include "hda.h" #include "sor.h" @@ -367,10 +371,11 @@ struct tegra_sor_regs { }; struct tegra_sor_soc { - bool supports_edp; bool supports_lvds; bool supports_hdmi; bool supports_dp; + bool supports_audio; + bool supports_hdcp; const struct tegra_sor_regs *regs; bool has_nvdisplay; @@ -379,6 +384,12 @@ struct tegra_sor_soc { unsigned int num_settings; const u8 *xbar_cfg; + const u8 *lane_map; + + const u8 (*voltage_swing)[4][4]; + const u8 (*pre_emphasis)[4][4]; + const u8 (*post_cursor)[4][4]; + const u8 (*tx_pu)[4][4]; }; struct tegra_sor; @@ -387,6 +398,8 @@ struct tegra_sor_ops { const char *name; int (*probe)(struct tegra_sor *sor); int (*remove)(struct tegra_sor *sor); + void (*audio_enable)(struct tegra_sor *sor); + void (*audio_disable)(struct tegra_sor *sor); }; struct tegra_sor { @@ -409,6 +422,7 @@ struct tegra_sor { u8 xbar_cfg[5]; + struct drm_dp_link link; struct drm_dp_aux *aux; struct drm_info_list *debugfs_files; @@ -511,10 +525,19 @@ static inline struct tegra_clk_sor_pad *to_pad(struct clk_hw *hw) return container_of(hw, struct tegra_clk_sor_pad, hw); } -static const char * const tegra_clk_sor_pad_parents[] = { - "pll_d2_out0", "pll_dp" +static const char * const tegra_clk_sor_pad_parents[2][2] = { + { "pll_d_out0", "pll_dp" }, + { "pll_d2_out0", "pll_dp" }, }; +/* + * Implementing ->set_parent() here isn't really required because the parent + * will be explicitly selected in the driver code via the DP_CLK_SEL mux in + * the SOR_CLK_CNTRL register. This is primarily for compatibility with the + * Tegra186 and later SoC generations where the BPMP implements this clock + * and doesn't expose the mux via the common clock framework. + */ + static int tegra_clk_sor_pad_set_parent(struct clk_hw *hw, u8 index) { struct tegra_clk_sor_pad *pad = to_pad(hw); @@ -583,8 +606,8 @@ static struct clk *tegra_clk_sor_pad_register(struct tegra_sor *sor, init.name = name; init.flags = 0; - init.parent_names = tegra_clk_sor_pad_parents; - init.num_parents = ARRAY_SIZE(tegra_clk_sor_pad_parents); + init.parent_names = tegra_clk_sor_pad_parents[sor->index]; + init.num_parents = ARRAY_SIZE(tegra_clk_sor_pad_parents[sor->index]); init.ops = &tegra_clk_sor_pad_ops; pad->hw.init = &init; @@ -594,112 +617,340 @@ static struct clk *tegra_clk_sor_pad_register(struct tegra_sor *sor, return clk; } -static int tegra_sor_dp_train_fast(struct tegra_sor *sor, - struct drm_dp_link *link) +static void tegra_sor_filter_rates(struct tegra_sor *sor) { + struct drm_dp_link *link = &sor->link; unsigned int i; - u8 pattern; + + /* Tegra only supports RBR, HBR and HBR2 */ + for (i = 0; i < link->num_rates; i++) { + switch (link->rates[i]) { + case 1620000: + case 2700000: + case 5400000: + break; + + default: + DRM_DEBUG_KMS("link rate %lu kHz not supported\n", + link->rates[i]); + link->rates[i] = 0; + break; + } + } + + drm_dp_link_update_rates(link); +} + +static int tegra_sor_power_up_lanes(struct tegra_sor *sor, unsigned int lanes) +{ + unsigned long timeout; u32 value; - int err; - /* setup lane parameters */ - value = SOR_LANE_DRIVE_CURRENT_LANE3(0x40) | - SOR_LANE_DRIVE_CURRENT_LANE2(0x40) | - SOR_LANE_DRIVE_CURRENT_LANE1(0x40) | - SOR_LANE_DRIVE_CURRENT_LANE0(0x40); - tegra_sor_writel(sor, value, SOR_LANE_DRIVE_CURRENT0); + /* + * Clear or set the PD_TXD bit corresponding to each lane, depending + * on whether it is used or not. + */ + value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - value = SOR_LANE_PREEMPHASIS_LANE3(0x0f) | - SOR_LANE_PREEMPHASIS_LANE2(0x0f) | - SOR_LANE_PREEMPHASIS_LANE1(0x0f) | - SOR_LANE_PREEMPHASIS_LANE0(0x0f); - tegra_sor_writel(sor, value, SOR_LANE_PREEMPHASIS0); + if (lanes <= 2) + value &= ~(SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[3]) | + SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[2])); + else + value |= SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[3]) | + SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[2]); - value = SOR_LANE_POSTCURSOR_LANE3(0x00) | - SOR_LANE_POSTCURSOR_LANE2(0x00) | - SOR_LANE_POSTCURSOR_LANE1(0x00) | - SOR_LANE_POSTCURSOR_LANE0(0x00); - tegra_sor_writel(sor, value, SOR_LANE_POSTCURSOR0); + if (lanes <= 1) + value &= ~SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[1]); + else + value |= SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[1]); - /* disable LVDS mode */ - tegra_sor_writel(sor, 0, SOR_LVDS); + if (lanes == 0) + value &= ~SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[0]); + else + value |= SOR_DP_PADCTL_PD_TXD(sor->soc->lane_map[0]); + + tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); + + /* start lane sequencer */ + value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_DOWN | + SOR_LANE_SEQ_CTL_POWER_STATE_UP; + tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); + + timeout = jiffies + msecs_to_jiffies(250); + + while (time_before(jiffies, timeout)) { + value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); + if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) + break; + + usleep_range(250, 1000); + } + + if ((value & SOR_LANE_SEQ_CTL_TRIGGER) != 0) + return -ETIMEDOUT; + return 0; +} + +static int tegra_sor_power_down_lanes(struct tegra_sor *sor) +{ + unsigned long timeout; + u32 value; + + /* power down all lanes */ value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - value |= SOR_DP_PADCTL_TX_PU_ENABLE; - value &= ~SOR_DP_PADCTL_TX_PU_MASK; - value |= SOR_DP_PADCTL_TX_PU(2); /* XXX: don't hardcode? */ + value &= ~(SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_0 | + SOR_DP_PADCTL_PD_TXD_1 | SOR_DP_PADCTL_PD_TXD_2); tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); + /* start lane sequencer */ + value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_UP | + SOR_LANE_SEQ_CTL_POWER_STATE_DOWN; + tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); + + timeout = jiffies + msecs_to_jiffies(250); + + while (time_before(jiffies, timeout)) { + value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); + if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) + break; + + usleep_range(25, 100); + } + + if ((value & SOR_LANE_SEQ_CTL_TRIGGER) != 0) + return -ETIMEDOUT; + + return 0; +} + +static void tegra_sor_dp_precharge(struct tegra_sor *sor, unsigned int lanes) +{ + u32 value; + + /* pre-charge all used lanes */ value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - value |= SOR_DP_PADCTL_CM_TXD_3 | SOR_DP_PADCTL_CM_TXD_2 | - SOR_DP_PADCTL_CM_TXD_1 | SOR_DP_PADCTL_CM_TXD_0; + + if (lanes <= 2) + value &= ~(SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[3]) | + SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[2])); + else + value |= SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[3]) | + SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[2]); + + if (lanes <= 1) + value &= ~SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[1]); + else + value |= SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[1]); + + if (lanes == 0) + value &= ~SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[0]); + else + value |= SOR_DP_PADCTL_CM_TXD(sor->soc->lane_map[0]); + tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); - usleep_range(10, 100); + usleep_range(15, 100); value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); value &= ~(SOR_DP_PADCTL_CM_TXD_3 | SOR_DP_PADCTL_CM_TXD_2 | SOR_DP_PADCTL_CM_TXD_1 | SOR_DP_PADCTL_CM_TXD_0); tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); +} - err = drm_dp_aux_prepare(sor->aux, DP_SET_ANSI_8B10B); - if (err < 0) - return err; +static void tegra_sor_dp_term_calibrate(struct tegra_sor *sor) +{ + u32 mask = 0x08, adj = 0, value; - for (i = 0, value = 0; i < link->num_lanes; i++) { - unsigned long lane = SOR_DP_TPG_CHANNEL_CODING | - SOR_DP_TPG_SCRAMBLER_NONE | - SOR_DP_TPG_PATTERN_TRAIN1; - value = (value << 8) | lane; + /* enable pad calibration logic */ + value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); + value &= ~SOR_DP_PADCTL_PAD_CAL_PD; + tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); + + value = tegra_sor_readl(sor, sor->soc->regs->pll1); + value |= SOR_PLL1_TMDS_TERM; + tegra_sor_writel(sor, value, sor->soc->regs->pll1); + + while (mask) { + adj |= mask; + + value = tegra_sor_readl(sor, sor->soc->regs->pll1); + value &= ~SOR_PLL1_TMDS_TERMADJ_MASK; + value |= SOR_PLL1_TMDS_TERMADJ(adj); + tegra_sor_writel(sor, value, sor->soc->regs->pll1); + + usleep_range(100, 200); + + value = tegra_sor_readl(sor, sor->soc->regs->pll1); + if (value & SOR_PLL1_TERM_COMPOUT) + adj &= ~mask; + + mask >>= 1; } - tegra_sor_writel(sor, value, SOR_DP_TPG); + value = tegra_sor_readl(sor, sor->soc->regs->pll1); + value &= ~SOR_PLL1_TMDS_TERMADJ_MASK; + value |= SOR_PLL1_TMDS_TERMADJ(adj); + tegra_sor_writel(sor, value, sor->soc->regs->pll1); + + /* disable pad calibration logic */ + value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); + value |= SOR_DP_PADCTL_PAD_CAL_PD; + tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); +} - pattern = DP_TRAINING_PATTERN_1; +static int tegra_sor_dp_link_apply_training(struct drm_dp_link *link) +{ + struct tegra_sor *sor = container_of(link, struct tegra_sor, link); + u32 voltage_swing = 0, pre_emphasis = 0, post_cursor = 0; + const struct tegra_sor_soc *soc = sor->soc; + u32 pattern = 0, tx_pu = 0, value; + unsigned int i; - err = drm_dp_aux_train(sor->aux, link, pattern); - if (err < 0) - return err; + for (value = 0, i = 0; i < link->lanes; i++) { + u8 vs = link->train.request.voltage_swing[i]; + u8 pe = link->train.request.pre_emphasis[i]; + u8 pc = link->train.request.post_cursor[i]; + u8 shift = sor->soc->lane_map[i] << 3; - value = tegra_sor_readl(sor, SOR_DP_SPARE0); - value |= SOR_DP_SPARE_SEQ_ENABLE; - value &= ~SOR_DP_SPARE_PANEL_INTERNAL; - value |= SOR_DP_SPARE_MACRO_SOR_CLK; - tegra_sor_writel(sor, value, SOR_DP_SPARE0); + voltage_swing |= soc->voltage_swing[pc][vs][pe] << shift; + pre_emphasis |= soc->pre_emphasis[pc][vs][pe] << shift; + post_cursor |= soc->post_cursor[pc][vs][pe] << shift; + + if (sor->soc->tx_pu[pc][vs][pe] > tx_pu) + tx_pu = sor->soc->tx_pu[pc][vs][pe]; + + switch (link->train.pattern) { + case DP_TRAINING_PATTERN_DISABLE: + value = SOR_DP_TPG_SCRAMBLER_GALIOS | + SOR_DP_TPG_PATTERN_NONE; + break; + + case DP_TRAINING_PATTERN_1: + value = SOR_DP_TPG_SCRAMBLER_NONE | + SOR_DP_TPG_PATTERN_TRAIN1; + break; + + case DP_TRAINING_PATTERN_2: + value = SOR_DP_TPG_SCRAMBLER_NONE | + SOR_DP_TPG_PATTERN_TRAIN2; + break; + + case DP_TRAINING_PATTERN_3: + value = SOR_DP_TPG_SCRAMBLER_NONE | + SOR_DP_TPG_PATTERN_TRAIN3; + break; + + default: + return -EINVAL; + } - for (i = 0, value = 0; i < link->num_lanes; i++) { - unsigned long lane = SOR_DP_TPG_CHANNEL_CODING | - SOR_DP_TPG_SCRAMBLER_NONE | - SOR_DP_TPG_PATTERN_TRAIN2; - value = (value << 8) | lane; + if (link->caps.channel_coding) + value |= SOR_DP_TPG_CHANNEL_CODING; + + pattern = pattern << 8 | value; } - tegra_sor_writel(sor, value, SOR_DP_TPG); + tegra_sor_writel(sor, voltage_swing, SOR_LANE_DRIVE_CURRENT0); + tegra_sor_writel(sor, pre_emphasis, SOR_LANE_PREEMPHASIS0); - pattern = DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_2; + if (link->caps.tps3_supported) + tegra_sor_writel(sor, post_cursor, SOR_LANE_POSTCURSOR0); - err = drm_dp_aux_train(sor->aux, link, pattern); - if (err < 0) - return err; + tegra_sor_writel(sor, pattern, SOR_DP_TPG); + + value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); + value &= ~SOR_DP_PADCTL_TX_PU_MASK; + value |= SOR_DP_PADCTL_TX_PU_ENABLE; + value |= SOR_DP_PADCTL_TX_PU(tx_pu); + tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); + + usleep_range(20, 100); + + return 0; +} - for (i = 0, value = 0; i < link->num_lanes; i++) { - unsigned long lane = SOR_DP_TPG_CHANNEL_CODING | - SOR_DP_TPG_SCRAMBLER_GALIOS | - SOR_DP_TPG_PATTERN_NONE; - value = (value << 8) | lane; +static int tegra_sor_dp_link_configure(struct drm_dp_link *link) +{ + struct tegra_sor *sor = container_of(link, struct tegra_sor, link); + unsigned int rate, lanes; + u32 value; + int err; + + rate = drm_dp_link_rate_to_bw_code(link->rate); + lanes = link->lanes; + + /* configure link speed and lane count */ + value = tegra_sor_readl(sor, SOR_CLK_CNTRL); + value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK; + value |= SOR_CLK_CNTRL_DP_LINK_SPEED(rate); + tegra_sor_writel(sor, value, SOR_CLK_CNTRL); + + value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); + value &= ~SOR_DP_LINKCTL_LANE_COUNT_MASK; + value |= SOR_DP_LINKCTL_LANE_COUNT(lanes); + + if (link->caps.enhanced_framing) + value |= SOR_DP_LINKCTL_ENHANCED_FRAME; + + tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); + + usleep_range(400, 1000); + + /* configure load pulse position adjustment */ + value = tegra_sor_readl(sor, sor->soc->regs->pll1); + value &= ~SOR_PLL1_LOADADJ_MASK; + + switch (rate) { + case DP_LINK_BW_1_62: + value |= SOR_PLL1_LOADADJ(0x3); + break; + + case DP_LINK_BW_2_7: + value |= SOR_PLL1_LOADADJ(0x4); + break; + + case DP_LINK_BW_5_4: + value |= SOR_PLL1_LOADADJ(0x6); + break; } - tegra_sor_writel(sor, value, SOR_DP_TPG); + tegra_sor_writel(sor, value, sor->soc->regs->pll1); - pattern = DP_TRAINING_PATTERN_DISABLE; + /* use alternate scrambler reset for eDP */ + value = tegra_sor_readl(sor, SOR_DP_SPARE0); - err = drm_dp_aux_train(sor->aux, link, pattern); - if (err < 0) + if (link->edp == 0) + value &= ~SOR_DP_SPARE_PANEL_INTERNAL; + else + value |= SOR_DP_SPARE_PANEL_INTERNAL; + + tegra_sor_writel(sor, value, SOR_DP_SPARE0); + + err = tegra_sor_power_down_lanes(sor); + if (err < 0) { + dev_err(sor->dev, "failed to power down lanes: %d\n", err); + return err; + } + + /* power up and pre-charge lanes */ + err = tegra_sor_power_up_lanes(sor, lanes); + if (err < 0) { + dev_err(sor->dev, "failed to power up %u lane%s: %d\n", + lanes, (lanes != 1) ? "s" : "", err); return err; + } + + tegra_sor_dp_precharge(sor, lanes); return 0; } +static const struct drm_dp_link_ops tegra_sor_dp_link_ops = { + .apply_training = tegra_sor_dp_link_apply_training, + .configure = tegra_sor_dp_link_configure, +}; + static void tegra_sor_super_update(struct tegra_sor *sor) { tegra_sor_writel(sor, 0, SOR_SUPER_STATE0); @@ -909,11 +1160,11 @@ static int tegra_sor_compute_config(struct tegra_sor *sor, u32 num_syms_per_line; unsigned int i; - if (!link_rate || !link->num_lanes || !pclk || !config->bits_per_pixel) + if (!link_rate || !link->lanes || !pclk || !config->bits_per_pixel) return -EINVAL; - output = link_rate * 8 * link->num_lanes; input = pclk * config->bits_per_pixel; + output = link_rate * 8 * link->lanes; if (input >= output) return -ERANGE; @@ -956,7 +1207,7 @@ static int tegra_sor_compute_config(struct tegra_sor *sor, watermark = div_u64(watermark + params.error, f); config->watermark = watermark + (config->bits_per_pixel / 8) + 2; num_syms_per_line = (mode->hdisplay * config->bits_per_pixel) * - (link->num_lanes * 8); + (link->lanes * 8); if (config->watermark > 30) { config->watermark = 30; @@ -973,15 +1224,15 @@ static int tegra_sor_compute_config(struct tegra_sor *sor, num = ((mode->htotal - mode->hdisplay) - 7) * link_rate; config->hblank_symbols = div_u64(num, pclk); - if (link->capabilities & DP_LINK_CAP_ENHANCED_FRAMING) + if (link->caps.enhanced_framing) config->hblank_symbols -= 3; - config->hblank_symbols -= 12 / link->num_lanes; + config->hblank_symbols -= 12 / link->lanes; /* compute the number of symbols per vertical blanking interval */ num = (mode->hdisplay - 25) * link_rate; config->vblank_symbols = div_u64(num, pclk); - config->vblank_symbols -= 36 / link->num_lanes + 4; + config->vblank_symbols -= 36 / link->lanes + 4; dev_dbg(sor->dev, "blank symbols: H:%u V:%u\n", config->hblank_symbols, config->vblank_symbols); @@ -1197,29 +1448,6 @@ static int tegra_sor_power_down(struct tegra_sor *sor) return err; } - value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - value &= ~(SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_0 | - SOR_DP_PADCTL_PD_TXD_1 | SOR_DP_PADCTL_PD_TXD_2); - tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); - - /* stop lane sequencer */ - value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_UP | - SOR_LANE_SEQ_CTL_POWER_STATE_DOWN; - tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); - - timeout = jiffies + msecs_to_jiffies(250); - - while (time_before(jiffies, timeout)) { - value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); - if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) - break; - - usleep_range(25, 100); - } - - if ((value & SOR_LANE_SEQ_CTL_TRIGGER) != 0) - return -ETIMEDOUT; - value = tegra_sor_readl(sor, sor->soc->regs->pll2); value |= SOR_PLL2_PORT_POWERDOWN; tegra_sor_writel(sor, value, sor->soc->regs->pll2); @@ -1581,403 +1809,6 @@ static const struct drm_encoder_funcs tegra_sor_encoder_funcs = { .destroy = tegra_output_encoder_destroy, }; -static void tegra_sor_edp_disable(struct drm_encoder *encoder) -{ - struct tegra_output *output = encoder_to_output(encoder); - struct tegra_dc *dc = to_tegra_dc(encoder->crtc); - struct tegra_sor *sor = to_sor(output); - u32 value; - int err; - - if (output->panel) - drm_panel_disable(output->panel); - - err = tegra_sor_detach(sor); - if (err < 0) - dev_err(sor->dev, "failed to detach SOR: %d\n", err); - - tegra_sor_writel(sor, 0, SOR_STATE1); - tegra_sor_update(sor); - - /* - * The following accesses registers of the display controller, so make - * sure it's only executed when the output is attached to one. - */ - if (dc) { - value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); - value &= ~SOR_ENABLE(0); - tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); - - tegra_dc_commit(dc); - } - - err = tegra_sor_power_down(sor); - if (err < 0) - dev_err(sor->dev, "failed to power down SOR: %d\n", err); - - if (sor->aux) { - err = drm_dp_aux_disable(sor->aux); - if (err < 0) - dev_err(sor->dev, "failed to disable DP: %d\n", err); - } - - err = tegra_io_pad_power_disable(sor->pad); - if (err < 0) - dev_err(sor->dev, "failed to power off I/O pad: %d\n", err); - - if (output->panel) - drm_panel_unprepare(output->panel); - - pm_runtime_put(sor->dev); -} - -#if 0 -static int calc_h_ref_to_sync(const struct drm_display_mode *mode, - unsigned int *value) -{ - unsigned int hfp, hsw, hbp, a = 0, b; - - hfp = mode->hsync_start - mode->hdisplay; - hsw = mode->hsync_end - mode->hsync_start; - hbp = mode->htotal - mode->hsync_end; - - pr_info("hfp: %u, hsw: %u, hbp: %u\n", hfp, hsw, hbp); - - b = hfp - 1; - - pr_info("a: %u, b: %u\n", a, b); - pr_info("a + hsw + hbp = %u\n", a + hsw + hbp); - - if (a + hsw + hbp <= 11) { - a = 1 + 11 - hsw - hbp; - pr_info("a: %u\n", a); - } - - if (a > b) - return -EINVAL; - - if (hsw < 1) - return -EINVAL; - - if (mode->hdisplay < 16) - return -EINVAL; - - if (value) { - if (b > a && a % 2) - *value = a + 1; - else - *value = a; - } - - return 0; -} -#endif - -static void tegra_sor_edp_enable(struct drm_encoder *encoder) -{ - struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; - struct tegra_output *output = encoder_to_output(encoder); - struct tegra_dc *dc = to_tegra_dc(encoder->crtc); - struct tegra_sor *sor = to_sor(output); - struct tegra_sor_config config; - struct tegra_sor_state *state; - struct drm_dp_link link; - u8 rate, lanes; - unsigned int i; - int err = 0; - u32 value; - - state = to_sor_state(output->connector.state); - - pm_runtime_get_sync(sor->dev); - - if (output->panel) - drm_panel_prepare(output->panel); - - err = drm_dp_aux_enable(sor->aux); - if (err < 0) - dev_err(sor->dev, "failed to enable DP: %d\n", err); - - err = drm_dp_link_probe(sor->aux, &link); - if (err < 0) { - dev_err(sor->dev, "failed to probe eDP link: %d\n", err); - return; - } - - /* switch to safe parent clock */ - err = tegra_sor_set_parent_clock(sor, sor->clk_safe); - if (err < 0) - dev_err(sor->dev, "failed to set safe parent clock: %d\n", err); - - memset(&config, 0, sizeof(config)); - config.bits_per_pixel = state->bpc * 3; - - err = tegra_sor_compute_config(sor, mode, &config, &link); - if (err < 0) - dev_err(sor->dev, "failed to compute configuration: %d\n", err); - - value = tegra_sor_readl(sor, SOR_CLK_CNTRL); - value &= ~SOR_CLK_CNTRL_DP_CLK_SEL_MASK; - value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK; - tegra_sor_writel(sor, value, SOR_CLK_CNTRL); - - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value &= ~SOR_PLL2_BANDGAP_POWERDOWN; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - usleep_range(20, 100); - - value = tegra_sor_readl(sor, sor->soc->regs->pll3); - value |= SOR_PLL3_PLL_VDD_MODE_3V3; - tegra_sor_writel(sor, value, sor->soc->regs->pll3); - - value = SOR_PLL0_ICHPMP(0xf) | SOR_PLL0_VCOCAP_RST | - SOR_PLL0_PLLREG_LEVEL_V45 | SOR_PLL0_RESISTOR_EXT; - tegra_sor_writel(sor, value, sor->soc->regs->pll0); - - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value |= SOR_PLL2_SEQ_PLLCAPPD; - value &= ~SOR_PLL2_SEQ_PLLCAPPD_ENFORCE; - value |= SOR_PLL2_LVDS_ENABLE; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - - value = SOR_PLL1_TERM_COMPOUT | SOR_PLL1_TMDS_TERM; - tegra_sor_writel(sor, value, sor->soc->regs->pll1); - - while (true) { - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - if ((value & SOR_PLL2_SEQ_PLLCAPPD_ENFORCE) == 0) - break; - - usleep_range(250, 1000); - } - - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value &= ~SOR_PLL2_POWERDOWN_OVERRIDE; - value &= ~SOR_PLL2_PORT_POWERDOWN; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - - /* - * power up - */ - - /* set safe link bandwidth (1.62 Gbps) */ - value = tegra_sor_readl(sor, SOR_CLK_CNTRL); - value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK; - value |= SOR_CLK_CNTRL_DP_LINK_SPEED_G1_62; - tegra_sor_writel(sor, value, SOR_CLK_CNTRL); - - /* step 1 */ - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value |= SOR_PLL2_SEQ_PLLCAPPD_ENFORCE | SOR_PLL2_PORT_POWERDOWN | - SOR_PLL2_BANDGAP_POWERDOWN; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - - value = tegra_sor_readl(sor, sor->soc->regs->pll0); - value |= SOR_PLL0_VCOPD | SOR_PLL0_PWR; - tegra_sor_writel(sor, value, sor->soc->regs->pll0); - - value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - value &= ~SOR_DP_PADCTL_PAD_CAL_PD; - tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); - - /* step 2 */ - err = tegra_io_pad_power_enable(sor->pad); - if (err < 0) - dev_err(sor->dev, "failed to power on I/O pad: %d\n", err); - - usleep_range(5, 100); - - /* step 3 */ - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value &= ~SOR_PLL2_BANDGAP_POWERDOWN; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - - usleep_range(20, 100); - - /* step 4 */ - value = tegra_sor_readl(sor, sor->soc->regs->pll0); - value &= ~SOR_PLL0_VCOPD; - value &= ~SOR_PLL0_PWR; - tegra_sor_writel(sor, value, sor->soc->regs->pll0); - - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value &= ~SOR_PLL2_SEQ_PLLCAPPD_ENFORCE; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - - usleep_range(200, 1000); - - /* step 5 */ - value = tegra_sor_readl(sor, sor->soc->regs->pll2); - value &= ~SOR_PLL2_PORT_POWERDOWN; - tegra_sor_writel(sor, value, sor->soc->regs->pll2); - - /* XXX not in TRM */ - for (value = 0, i = 0; i < 5; i++) - value |= SOR_XBAR_CTRL_LINK0_XSEL(i, sor->xbar_cfg[i]) | - SOR_XBAR_CTRL_LINK1_XSEL(i, i); - - tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL); - tegra_sor_writel(sor, value, SOR_XBAR_CTRL); - - /* switch to DP parent clock */ - err = tegra_sor_set_parent_clock(sor, sor->clk_dp); - if (err < 0) - dev_err(sor->dev, "failed to set parent clock: %d\n", err); - - /* power DP lanes */ - value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - - if (link.num_lanes <= 2) - value &= ~(SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_2); - else - value |= SOR_DP_PADCTL_PD_TXD_3 | SOR_DP_PADCTL_PD_TXD_2; - - if (link.num_lanes <= 1) - value &= ~SOR_DP_PADCTL_PD_TXD_1; - else - value |= SOR_DP_PADCTL_PD_TXD_1; - - if (link.num_lanes == 0) - value &= ~SOR_DP_PADCTL_PD_TXD_0; - else - value |= SOR_DP_PADCTL_PD_TXD_0; - - tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); - - value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); - value &= ~SOR_DP_LINKCTL_LANE_COUNT_MASK; - value |= SOR_DP_LINKCTL_LANE_COUNT(link.num_lanes); - tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); - - /* start lane sequencer */ - value = SOR_LANE_SEQ_CTL_TRIGGER | SOR_LANE_SEQ_CTL_SEQUENCE_DOWN | - SOR_LANE_SEQ_CTL_POWER_STATE_UP; - tegra_sor_writel(sor, value, SOR_LANE_SEQ_CTL); - - while (true) { - value = tegra_sor_readl(sor, SOR_LANE_SEQ_CTL); - if ((value & SOR_LANE_SEQ_CTL_TRIGGER) == 0) - break; - - usleep_range(250, 1000); - } - - /* set link bandwidth */ - value = tegra_sor_readl(sor, SOR_CLK_CNTRL); - value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK; - value |= drm_dp_link_rate_to_bw_code(link.rate) << 2; - tegra_sor_writel(sor, value, SOR_CLK_CNTRL); - - tegra_sor_apply_config(sor, &config); - - /* enable link */ - value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); - value |= SOR_DP_LINKCTL_ENABLE; - value |= SOR_DP_LINKCTL_ENHANCED_FRAME; - tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); - - for (i = 0, value = 0; i < 4; i++) { - unsigned long lane = SOR_DP_TPG_CHANNEL_CODING | - SOR_DP_TPG_SCRAMBLER_GALIOS | - SOR_DP_TPG_PATTERN_NONE; - value = (value << 8) | lane; - } - - tegra_sor_writel(sor, value, SOR_DP_TPG); - - /* enable pad calibration logic */ - value = tegra_sor_readl(sor, sor->soc->regs->dp_padctl0); - value |= SOR_DP_PADCTL_PAD_CAL_PD; - tegra_sor_writel(sor, value, sor->soc->regs->dp_padctl0); - - err = drm_dp_link_probe(sor->aux, &link); - if (err < 0) - dev_err(sor->dev, "failed to probe eDP link: %d\n", err); - - err = drm_dp_link_power_up(sor->aux, &link); - if (err < 0) - dev_err(sor->dev, "failed to power up eDP link: %d\n", err); - - err = drm_dp_link_configure(sor->aux, &link); - if (err < 0) - dev_err(sor->dev, "failed to configure eDP link: %d\n", err); - - rate = drm_dp_link_rate_to_bw_code(link.rate); - lanes = link.num_lanes; - - value = tegra_sor_readl(sor, SOR_CLK_CNTRL); - value &= ~SOR_CLK_CNTRL_DP_LINK_SPEED_MASK; - value |= SOR_CLK_CNTRL_DP_LINK_SPEED(rate); - tegra_sor_writel(sor, value, SOR_CLK_CNTRL); - - value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); - value &= ~SOR_DP_LINKCTL_LANE_COUNT_MASK; - value |= SOR_DP_LINKCTL_LANE_COUNT(lanes); - - if (link.capabilities & DP_LINK_CAP_ENHANCED_FRAMING) - value |= SOR_DP_LINKCTL_ENHANCED_FRAME; - - tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); - - /* disable training pattern generator */ - - for (i = 0; i < link.num_lanes; i++) { - unsigned long lane = SOR_DP_TPG_CHANNEL_CODING | - SOR_DP_TPG_SCRAMBLER_GALIOS | - SOR_DP_TPG_PATTERN_NONE; - value = (value << 8) | lane; - } - - tegra_sor_writel(sor, value, SOR_DP_TPG); - - err = tegra_sor_dp_train_fast(sor, &link); - if (err < 0) - dev_err(sor->dev, "DP fast link training failed: %d\n", err); - - dev_dbg(sor->dev, "fast link training succeeded\n"); - - err = tegra_sor_power_up(sor, 250); - if (err < 0) - dev_err(sor->dev, "failed to power up SOR: %d\n", err); - - /* CSTM (LVDS, link A/B, upper) */ - value = SOR_CSTM_LVDS | SOR_CSTM_LINK_ACT_A | SOR_CSTM_LINK_ACT_B | - SOR_CSTM_UPPER; - tegra_sor_writel(sor, value, SOR_CSTM); - - /* use DP-A protocol */ - value = tegra_sor_readl(sor, SOR_STATE1); - value &= ~SOR_STATE_ASY_PROTOCOL_MASK; - value |= SOR_STATE_ASY_PROTOCOL_DP_A; - tegra_sor_writel(sor, value, SOR_STATE1); - - tegra_sor_mode_set(sor, mode, state); - - /* PWM setup */ - err = tegra_sor_setup_pwm(sor, 250); - if (err < 0) - dev_err(sor->dev, "failed to setup PWM: %d\n", err); - - tegra_sor_update(sor); - - value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); - value |= SOR_ENABLE(0); - tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); - - tegra_dc_commit(dc); - - err = tegra_sor_attach(sor); - if (err < 0) - dev_err(sor->dev, "failed to attach SOR: %d\n", err); - - err = tegra_sor_wakeup(sor); - if (err < 0) - dev_err(sor->dev, "failed to enable DC: %d\n", err); - - if (output->panel) - drm_panel_enable(output->panel); -} - static int tegra_sor_encoder_atomic_check(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, @@ -2027,12 +1858,6 @@ tegra_sor_encoder_atomic_check(struct drm_encoder *encoder, return 0; } -static const struct drm_encoder_helper_funcs tegra_sor_edp_helpers = { - .disable = tegra_sor_edp_disable, - .enable = tegra_sor_edp_enable, - .atomic_check = tegra_sor_encoder_atomic_check, -}; - static inline u32 tegra_sor_hdmi_subpack(const u8 *ptr, size_t size) { u32 value = 0; @@ -2157,6 +1982,15 @@ static void tegra_sor_audio_prepare(struct tegra_sor *sor) { u32 value; + /* + * Enable and unmask the HDA codec SCRATCH0 register interrupt. This + * is used for interoperability between the HDA codec driver and the + * HDMI/DP driver. + */ + value = SOR_INT_CODEC_SCRATCH1 | SOR_INT_CODEC_SCRATCH0; + tegra_sor_writel(sor, value, SOR_INT_ENABLE); + tegra_sor_writel(sor, value, SOR_INT_MASK); + tegra_sor_write_eld(sor); value = SOR_AUDIO_HDA_PRESENSE_ELDV | SOR_AUDIO_HDA_PRESENSE_PD; @@ -2166,6 +2000,32 @@ static void tegra_sor_audio_prepare(struct tegra_sor *sor) static void tegra_sor_audio_unprepare(struct tegra_sor *sor) { tegra_sor_writel(sor, 0, SOR_AUDIO_HDA_PRESENSE); + tegra_sor_writel(sor, 0, SOR_INT_MASK); + tegra_sor_writel(sor, 0, SOR_INT_ENABLE); +} + +static void tegra_sor_audio_enable(struct tegra_sor *sor) +{ + u32 value; + + value = tegra_sor_readl(sor, SOR_AUDIO_CNTRL); + + /* select HDA audio input */ + value &= ~SOR_AUDIO_CNTRL_SOURCE_SELECT(SOURCE_SELECT_MASK); + value |= SOR_AUDIO_CNTRL_SOURCE_SELECT(SOURCE_SELECT_HDA); + + /* inject null samples */ + if (sor->format.channels != 2) + value &= ~SOR_AUDIO_CNTRL_INJECT_NULLSMPL; + else + value |= SOR_AUDIO_CNTRL_INJECT_NULLSMPL; + + value |= SOR_AUDIO_CNTRL_AFIFO_FLUSH; + + tegra_sor_writel(sor, value, SOR_AUDIO_CNTRL); + + /* enable advertising HBR capability */ + tegra_sor_writel(sor, SOR_AUDIO_SPARE_HBR_ENABLE, SOR_AUDIO_SPARE); } static int tegra_sor_hdmi_enable_audio_infoframe(struct tegra_sor *sor) @@ -2203,24 +2063,7 @@ static void tegra_sor_hdmi_audio_enable(struct tegra_sor *sor) { u32 value; - value = tegra_sor_readl(sor, SOR_AUDIO_CNTRL); - - /* select HDA audio input */ - value &= ~SOR_AUDIO_CNTRL_SOURCE_SELECT(SOURCE_SELECT_MASK); - value |= SOR_AUDIO_CNTRL_SOURCE_SELECT(SOURCE_SELECT_HDA); - - /* inject null samples */ - if (sor->format.channels != 2) - value &= ~SOR_AUDIO_CNTRL_INJECT_NULLSMPL; - else - value |= SOR_AUDIO_CNTRL_INJECT_NULLSMPL; - - value |= SOR_AUDIO_CNTRL_AFIFO_FLUSH; - - tegra_sor_writel(sor, value, SOR_AUDIO_CNTRL); - - /* enable advertising HBR capability */ - tegra_sor_writel(sor, SOR_AUDIO_SPARE_HBR_ENABLE, SOR_AUDIO_SPARE); + tegra_sor_audio_enable(sor); tegra_sor_writel(sor, 0, SOR_HDMI_ACR_CTRL); @@ -2396,9 +2239,9 @@ static void tegra_sor_hdmi_disable(struct drm_encoder *encoder) value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); if (!sor->soc->has_nvdisplay) - value &= ~(SOR1_TIMING_CYA | SOR_ENABLE(1)); - else - value &= ~SOR_ENABLE(sor->index); + value &= ~SOR1_TIMING_CYA; + + value &= ~SOR_ENABLE(sor->index); tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); @@ -2412,7 +2255,7 @@ static void tegra_sor_hdmi_disable(struct drm_encoder *encoder) if (err < 0) dev_err(sor->dev, "failed to power off I/O pad: %d\n", err); - pm_runtime_put(sor->dev); + host1x_client_suspend(&sor->client); } static void tegra_sor_hdmi_enable(struct drm_encoder *encoder) @@ -2433,7 +2276,11 @@ static void tegra_sor_hdmi_enable(struct drm_encoder *encoder) mode = &encoder->crtc->state->adjusted_mode; pclk = mode->clock * 1000; - pm_runtime_get_sync(sor->dev); + err = host1x_client_resume(&sor->client); + if (err < 0) { + dev_err(sor->dev, "failed to resume: %d\n", err); + return; + } /* switch to safe parent clock */ err = tegra_sor_set_parent_clock(sor, sor->clk_safe); @@ -2556,16 +2403,34 @@ static void tegra_sor_hdmi_enable(struct drm_encoder *encoder) tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL); tegra_sor_writel(sor, value, SOR_XBAR_CTRL); - /* switch to parent clock */ - err = clk_set_parent(sor->clk, sor->clk_parent); + /* + * Switch the pad clock to the DP clock. Note that we cannot actually + * do this because Tegra186 and later don't support clk_set_parent() + * on the sorX_pad_clkout clocks. We already do the equivalent above + * using the DP_CLK_SEL mux of the SOR_CLK_CNTRL register. + */ +#if 0 + err = clk_set_parent(sor->clk_pad, sor->clk_dp); if (err < 0) { - dev_err(sor->dev, "failed to set parent clock: %d\n", err); + dev_err(sor->dev, "failed to select pad parent clock: %d\n", + err); return; } +#endif + /* switch the SOR clock to the pad clock */ err = tegra_sor_set_parent_clock(sor, sor->clk_pad); if (err < 0) { - dev_err(sor->dev, "failed to set pad clock: %d\n", err); + dev_err(sor->dev, "failed to select SOR parent clock: %d\n", + err); + return; + } + + /* switch the output clock to the parent pixel clock */ + err = clk_set_parent(sor->clk, sor->clk_parent); + if (err < 0) { + dev_err(sor->dev, "failed to select output parent clock: %d\n", + err); return; } @@ -2771,9 +2636,9 @@ static void tegra_sor_hdmi_enable(struct drm_encoder *encoder) value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); if (!sor->soc->has_nvdisplay) - value |= SOR_ENABLE(1) | SOR1_TIMING_CYA; - else - value |= SOR_ENABLE(sor->index); + value |= SOR1_TIMING_CYA; + + value |= SOR_ENABLE(sor->index); tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); @@ -2800,18 +2665,411 @@ static const struct drm_encoder_helper_funcs tegra_sor_hdmi_helpers = { .atomic_check = tegra_sor_encoder_atomic_check, }; +static void tegra_sor_dp_disable(struct drm_encoder *encoder) +{ + struct tegra_output *output = encoder_to_output(encoder); + struct tegra_dc *dc = to_tegra_dc(encoder->crtc); + struct tegra_sor *sor = to_sor(output); + u32 value; + int err; + + if (output->panel) + drm_panel_disable(output->panel); + + /* + * Do not attempt to power down a DP link if we're not connected since + * the AUX transactions would just be timing out. + */ + if (output->connector.status != connector_status_disconnected) { + err = drm_dp_link_power_down(sor->aux, &sor->link); + if (err < 0) + dev_err(sor->dev, "failed to power down link: %d\n", + err); + } + + err = tegra_sor_detach(sor); + if (err < 0) + dev_err(sor->dev, "failed to detach SOR: %d\n", err); + + tegra_sor_writel(sor, 0, SOR_STATE1); + tegra_sor_update(sor); + + value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); + value &= ~SOR_ENABLE(sor->index); + tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); + tegra_dc_commit(dc); + + value = tegra_sor_readl(sor, SOR_STATE1); + value &= ~SOR_STATE_ASY_PROTOCOL_MASK; + value &= ~SOR_STATE_ASY_SUBOWNER_MASK; + value &= ~SOR_STATE_ASY_OWNER_MASK; + tegra_sor_writel(sor, value, SOR_STATE1); + tegra_sor_update(sor); + + /* switch to safe parent clock */ + err = tegra_sor_set_parent_clock(sor, sor->clk_safe); + if (err < 0) + dev_err(sor->dev, "failed to set safe clock: %d\n", err); + + err = tegra_sor_power_down(sor); + if (err < 0) + dev_err(sor->dev, "failed to power down SOR: %d\n", err); + + err = tegra_io_pad_power_disable(sor->pad); + if (err < 0) + dev_err(sor->dev, "failed to power off I/O pad: %d\n", err); + + err = drm_dp_aux_disable(sor->aux); + if (err < 0) + dev_err(sor->dev, "failed disable DPAUX: %d\n", err); + + if (output->panel) + drm_panel_unprepare(output->panel); + + host1x_client_suspend(&sor->client); +} + +static void tegra_sor_dp_enable(struct drm_encoder *encoder) +{ + struct tegra_output *output = encoder_to_output(encoder); + struct tegra_dc *dc = to_tegra_dc(encoder->crtc); + struct tegra_sor *sor = to_sor(output); + struct tegra_sor_config config; + struct tegra_sor_state *state; + struct drm_display_mode *mode; + struct drm_display_info *info; + unsigned int i; + u32 value; + int err; + + state = to_sor_state(output->connector.state); + mode = &encoder->crtc->state->adjusted_mode; + info = &output->connector.display_info; + + err = host1x_client_resume(&sor->client); + if (err < 0) { + dev_err(sor->dev, "failed to resume: %d\n", err); + return; + } + + /* switch to safe parent clock */ + err = tegra_sor_set_parent_clock(sor, sor->clk_safe); + if (err < 0) + dev_err(sor->dev, "failed to set safe parent clock: %d\n", err); + + err = tegra_io_pad_power_enable(sor->pad); + if (err < 0) + dev_err(sor->dev, "failed to power on LVDS rail: %d\n", err); + + usleep_range(20, 100); + + err = drm_dp_aux_enable(sor->aux); + if (err < 0) + dev_err(sor->dev, "failed to enable DPAUX: %d\n", err); + + err = drm_dp_link_probe(sor->aux, &sor->link); + if (err < 0) + dev_err(sor->dev, "failed to probe DP link: %d\n", err); + + tegra_sor_filter_rates(sor); + + err = drm_dp_link_choose(&sor->link, mode, info); + if (err < 0) + dev_err(sor->dev, "failed to choose link: %d\n", err); + + if (output->panel) + drm_panel_prepare(output->panel); + + value = tegra_sor_readl(sor, sor->soc->regs->pll2); + value &= ~SOR_PLL2_BANDGAP_POWERDOWN; + tegra_sor_writel(sor, value, sor->soc->regs->pll2); + + usleep_range(20, 40); + + value = tegra_sor_readl(sor, sor->soc->regs->pll3); + value |= SOR_PLL3_PLL_VDD_MODE_3V3; + tegra_sor_writel(sor, value, sor->soc->regs->pll3); + + value = tegra_sor_readl(sor, sor->soc->regs->pll0); + value &= ~(SOR_PLL0_VCOPD | SOR_PLL0_PWR); + tegra_sor_writel(sor, value, sor->soc->regs->pll0); + + value = tegra_sor_readl(sor, sor->soc->regs->pll2); + value &= ~SOR_PLL2_SEQ_PLLCAPPD_ENFORCE; + value |= SOR_PLL2_SEQ_PLLCAPPD; + tegra_sor_writel(sor, value, sor->soc->regs->pll2); + + usleep_range(200, 400); + + value = tegra_sor_readl(sor, sor->soc->regs->pll2); + value &= ~SOR_PLL2_POWERDOWN_OVERRIDE; + value &= ~SOR_PLL2_PORT_POWERDOWN; + tegra_sor_writel(sor, value, sor->soc->regs->pll2); + + value = tegra_sor_readl(sor, SOR_CLK_CNTRL); + value &= ~SOR_CLK_CNTRL_DP_CLK_SEL_MASK; + + if (output->panel) + value |= SOR_CLK_CNTRL_DP_CLK_SEL_SINGLE_DPCLK; + else + value |= SOR_CLK_CNTRL_DP_CLK_SEL_DIFF_DPCLK; + + tegra_sor_writel(sor, value, SOR_CLK_CNTRL); + + usleep_range(200, 400); + + value = tegra_sor_readl(sor, SOR_DP_SPARE0); + /* XXX not in TRM */ + if (output->panel) + value |= SOR_DP_SPARE_PANEL_INTERNAL; + else + value &= ~SOR_DP_SPARE_PANEL_INTERNAL; + + value |= SOR_DP_SPARE_SEQ_ENABLE; + tegra_sor_writel(sor, value, SOR_DP_SPARE0); + + /* XXX not in TRM */ + tegra_sor_writel(sor, 0, SOR_LVDS); + + value = tegra_sor_readl(sor, sor->soc->regs->pll0); + value &= ~SOR_PLL0_ICHPMP_MASK; + value &= ~SOR_PLL0_VCOCAP_MASK; + value |= SOR_PLL0_ICHPMP(0x1); + value |= SOR_PLL0_VCOCAP(0x3); + value |= SOR_PLL0_RESISTOR_EXT; + tegra_sor_writel(sor, value, sor->soc->regs->pll0); + + /* XXX not in TRM */ + for (value = 0, i = 0; i < 5; i++) + value |= SOR_XBAR_CTRL_LINK0_XSEL(i, sor->soc->xbar_cfg[i]) | + SOR_XBAR_CTRL_LINK1_XSEL(i, i); + + tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL); + tegra_sor_writel(sor, value, SOR_XBAR_CTRL); + + /* + * Switch the pad clock to the DP clock. Note that we cannot actually + * do this because Tegra186 and later don't support clk_set_parent() + * on the sorX_pad_clkout clocks. We already do the equivalent above + * using the DP_CLK_SEL mux of the SOR_CLK_CNTRL register. + */ +#if 0 + err = clk_set_parent(sor->clk_pad, sor->clk_parent); + if (err < 0) { + dev_err(sor->dev, "failed to select pad parent clock: %d\n", + err); + return; + } +#endif + + /* switch the SOR clock to the pad clock */ + err = tegra_sor_set_parent_clock(sor, sor->clk_pad); + if (err < 0) { + dev_err(sor->dev, "failed to select SOR parent clock: %d\n", + err); + return; + } + + /* switch the output clock to the parent pixel clock */ + err = clk_set_parent(sor->clk, sor->clk_parent); + if (err < 0) { + dev_err(sor->dev, "failed to select output parent clock: %d\n", + err); + return; + } + + /* use DP-A protocol */ + value = tegra_sor_readl(sor, SOR_STATE1); + value &= ~SOR_STATE_ASY_PROTOCOL_MASK; + value |= SOR_STATE_ASY_PROTOCOL_DP_A; + tegra_sor_writel(sor, value, SOR_STATE1); + + /* enable port */ + value = tegra_sor_readl(sor, SOR_DP_LINKCTL0); + value |= SOR_DP_LINKCTL_ENABLE; + tegra_sor_writel(sor, value, SOR_DP_LINKCTL0); + + tegra_sor_dp_term_calibrate(sor); + + err = drm_dp_link_train(&sor->link); + if (err < 0) + dev_err(sor->dev, "link training failed: %d\n", err); + else + dev_dbg(sor->dev, "link training succeeded\n"); + + err = drm_dp_link_power_up(sor->aux, &sor->link); + if (err < 0) + dev_err(sor->dev, "failed to power up DP link: %d\n", err); + + /* compute configuration */ + memset(&config, 0, sizeof(config)); + config.bits_per_pixel = state->bpc * 3; + + err = tegra_sor_compute_config(sor, mode, &config, &sor->link); + if (err < 0) + dev_err(sor->dev, "failed to compute configuration: %d\n", err); + + tegra_sor_apply_config(sor, &config); + tegra_sor_mode_set(sor, mode, state); + + if (output->panel) { + /* CSTM (LVDS, link A/B, upper) */ + value = SOR_CSTM_LVDS | SOR_CSTM_LINK_ACT_A | SOR_CSTM_LINK_ACT_B | + SOR_CSTM_UPPER; + tegra_sor_writel(sor, value, SOR_CSTM); + + /* PWM setup */ + err = tegra_sor_setup_pwm(sor, 250); + if (err < 0) + dev_err(sor->dev, "failed to setup PWM: %d\n", err); + } + + tegra_sor_update(sor); + + err = tegra_sor_power_up(sor, 250); + if (err < 0) + dev_err(sor->dev, "failed to power up SOR: %d\n", err); + + /* attach and wake up */ + err = tegra_sor_attach(sor); + if (err < 0) + dev_err(sor->dev, "failed to attach SOR: %d\n", err); + + value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); + value |= SOR_ENABLE(sor->index); + tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); + + tegra_dc_commit(dc); + + err = tegra_sor_wakeup(sor); + if (err < 0) + dev_err(sor->dev, "failed to wakeup SOR: %d\n", err); + + if (output->panel) + drm_panel_enable(output->panel); +} + +static const struct drm_encoder_helper_funcs tegra_sor_dp_helpers = { + .disable = tegra_sor_dp_disable, + .enable = tegra_sor_dp_enable, + .atomic_check = tegra_sor_encoder_atomic_check, +}; + +static int tegra_sor_hdmi_probe(struct tegra_sor *sor) +{ + int err; + + sor->avdd_io_supply = devm_regulator_get(sor->dev, "avdd-io"); + if (IS_ERR(sor->avdd_io_supply)) { + dev_err(sor->dev, "cannot get AVDD I/O supply: %ld\n", + PTR_ERR(sor->avdd_io_supply)); + return PTR_ERR(sor->avdd_io_supply); + } + + err = regulator_enable(sor->avdd_io_supply); + if (err < 0) { + dev_err(sor->dev, "failed to enable AVDD I/O supply: %d\n", + err); + return err; + } + + sor->vdd_pll_supply = devm_regulator_get(sor->dev, "vdd-pll"); + if (IS_ERR(sor->vdd_pll_supply)) { + dev_err(sor->dev, "cannot get VDD PLL supply: %ld\n", + PTR_ERR(sor->vdd_pll_supply)); + return PTR_ERR(sor->vdd_pll_supply); + } + + err = regulator_enable(sor->vdd_pll_supply); + if (err < 0) { + dev_err(sor->dev, "failed to enable VDD PLL supply: %d\n", + err); + return err; + } + + sor->hdmi_supply = devm_regulator_get(sor->dev, "hdmi"); + if (IS_ERR(sor->hdmi_supply)) { + dev_err(sor->dev, "cannot get HDMI supply: %ld\n", + PTR_ERR(sor->hdmi_supply)); + return PTR_ERR(sor->hdmi_supply); + } + + err = regulator_enable(sor->hdmi_supply); + if (err < 0) { + dev_err(sor->dev, "failed to enable HDMI supply: %d\n", err); + return err; + } + + INIT_DELAYED_WORK(&sor->scdc, tegra_sor_hdmi_scdc_work); + + return 0; +} + +static int tegra_sor_hdmi_remove(struct tegra_sor *sor) +{ + regulator_disable(sor->hdmi_supply); + regulator_disable(sor->vdd_pll_supply); + regulator_disable(sor->avdd_io_supply); + + return 0; +} + +static const struct tegra_sor_ops tegra_sor_hdmi_ops = { + .name = "HDMI", + .probe = tegra_sor_hdmi_probe, + .remove = tegra_sor_hdmi_remove, + .audio_enable = tegra_sor_hdmi_audio_enable, + .audio_disable = tegra_sor_hdmi_audio_disable, +}; + +static int tegra_sor_dp_probe(struct tegra_sor *sor) +{ + int err; + + sor->avdd_io_supply = devm_regulator_get(sor->dev, "avdd-io-hdmi-dp"); + if (IS_ERR(sor->avdd_io_supply)) + return PTR_ERR(sor->avdd_io_supply); + + err = regulator_enable(sor->avdd_io_supply); + if (err < 0) + return err; + + sor->vdd_pll_supply = devm_regulator_get(sor->dev, "vdd-hdmi-dp-pll"); + if (IS_ERR(sor->vdd_pll_supply)) + return PTR_ERR(sor->vdd_pll_supply); + + err = regulator_enable(sor->vdd_pll_supply); + if (err < 0) + return err; + + return 0; +} + +static int tegra_sor_dp_remove(struct tegra_sor *sor) +{ + regulator_disable(sor->vdd_pll_supply); + regulator_disable(sor->avdd_io_supply); + + return 0; +} + +static const struct tegra_sor_ops tegra_sor_dp_ops = { + .name = "DP", + .probe = tegra_sor_dp_probe, + .remove = tegra_sor_dp_remove, +}; + static int tegra_sor_init(struct host1x_client *client) { - struct drm_device *drm = dev_get_drvdata(client->parent); + struct drm_device *drm = dev_get_drvdata(client->host); const struct drm_encoder_helper_funcs *helpers = NULL; struct tegra_sor *sor = host1x_client_to_sor(client); int connector = DRM_MODE_CONNECTOR_Unknown; int encoder = DRM_MODE_ENCODER_NONE; - u32 value; int err; if (!sor->aux) { - if (sor->soc->supports_hdmi) { + if (sor->ops == &tegra_sor_hdmi_ops) { connector = DRM_MODE_CONNECTOR_HDMIA; encoder = DRM_MODE_ENCODER_TMDS; helpers = &tegra_sor_hdmi_helpers; @@ -2820,21 +3078,26 @@ static int tegra_sor_init(struct host1x_client *client) encoder = DRM_MODE_ENCODER_LVDS; } } else { - if (sor->soc->supports_edp) { + if (sor->output.panel) { connector = DRM_MODE_CONNECTOR_eDP; encoder = DRM_MODE_ENCODER_TMDS; - helpers = &tegra_sor_edp_helpers; - } else if (sor->soc->supports_dp) { + helpers = &tegra_sor_dp_helpers; + } else { connector = DRM_MODE_CONNECTOR_DisplayPort; encoder = DRM_MODE_ENCODER_TMDS; + helpers = &tegra_sor_dp_helpers; } + + sor->link.ops = &tegra_sor_dp_link_ops; + sor->link.aux = sor->aux; } sor->output.dev = sor->dev; - drm_connector_init(drm, &sor->output.connector, - &tegra_sor_connector_funcs, - connector); + drm_connector_init_with_ddc(drm, &sor->output.connector, + &tegra_sor_connector_funcs, + connector, + sor->output.ddc); drm_connector_helper_add(&sor->output.connector, &tegra_sor_connector_helper_funcs); sor->output.connector.dpms = DRM_MODE_DPMS_OFF; @@ -2910,15 +3173,6 @@ static int tegra_sor_init(struct host1x_client *client) if (err < 0) return err; - /* - * Enable and unmask the HDA codec SCRATCH0 register interrupt. This - * is used for interoperability between the HDA codec driver and the - * HDMI/DP driver. - */ - value = SOR_INT_CODEC_SCRATCH1 | SOR_INT_CODEC_SCRATCH0; - tegra_sor_writel(sor, value, SOR_INT_ENABLE); - tegra_sor_writel(sor, value, SOR_INT_MASK); - return 0; } @@ -2927,9 +3181,6 @@ static int tegra_sor_exit(struct host1x_client *client) struct tegra_sor *sor = host1x_client_to_sor(client); int err; - tegra_sor_writel(sor, 0, SOR_INT_MASK); - tegra_sor_writel(sor, 0, SOR_INT_ENABLE); - tegra_output_exit(&sor->output); if (sor->aux) { @@ -2947,78 +3198,80 @@ static int tegra_sor_exit(struct host1x_client *client) return 0; } -static const struct host1x_client_ops sor_client_ops = { - .init = tegra_sor_init, - .exit = tegra_sor_exit, -}; - -static const struct tegra_sor_ops tegra_sor_edp_ops = { - .name = "eDP", -}; - -static int tegra_sor_hdmi_probe(struct tegra_sor *sor) +static int tegra_sor_runtime_suspend(struct host1x_client *client) { + struct tegra_sor *sor = host1x_client_to_sor(client); + struct device *dev = client->dev; int err; - sor->avdd_io_supply = devm_regulator_get(sor->dev, "avdd-io"); - if (IS_ERR(sor->avdd_io_supply)) { - dev_err(sor->dev, "cannot get AVDD I/O supply: %ld\n", - PTR_ERR(sor->avdd_io_supply)); - return PTR_ERR(sor->avdd_io_supply); - } + if (sor->rst) { + err = reset_control_assert(sor->rst); + if (err < 0) { + dev_err(dev, "failed to assert reset: %d\n", err); + return err; + } - err = regulator_enable(sor->avdd_io_supply); - if (err < 0) { - dev_err(sor->dev, "failed to enable AVDD I/O supply: %d\n", - err); - return err; + reset_control_release(sor->rst); } - sor->vdd_pll_supply = devm_regulator_get(sor->dev, "vdd-pll"); - if (IS_ERR(sor->vdd_pll_supply)) { - dev_err(sor->dev, "cannot get VDD PLL supply: %ld\n", - PTR_ERR(sor->vdd_pll_supply)); - return PTR_ERR(sor->vdd_pll_supply); - } + usleep_range(1000, 2000); - err = regulator_enable(sor->vdd_pll_supply); + clk_disable_unprepare(sor->clk); + pm_runtime_put_sync(dev); + + return 0; +} + +static int tegra_sor_runtime_resume(struct host1x_client *client) +{ + struct tegra_sor *sor = host1x_client_to_sor(client); + struct device *dev = client->dev; + int err; + + err = pm_runtime_get_sync(dev); if (err < 0) { - dev_err(sor->dev, "failed to enable VDD PLL supply: %d\n", - err); + dev_err(dev, "failed to get runtime PM: %d\n", err); return err; } - sor->hdmi_supply = devm_regulator_get(sor->dev, "hdmi"); - if (IS_ERR(sor->hdmi_supply)) { - dev_err(sor->dev, "cannot get HDMI supply: %ld\n", - PTR_ERR(sor->hdmi_supply)); - return PTR_ERR(sor->hdmi_supply); - } - - err = regulator_enable(sor->hdmi_supply); + err = clk_prepare_enable(sor->clk); if (err < 0) { - dev_err(sor->dev, "failed to enable HDMI supply: %d\n", err); - return err; + dev_err(dev, "failed to enable clock: %d\n", err); + goto put_rpm; } - INIT_DELAYED_WORK(&sor->scdc, tegra_sor_hdmi_scdc_work); + usleep_range(1000, 2000); - return 0; -} + if (sor->rst) { + err = reset_control_acquire(sor->rst); + if (err < 0) { + dev_err(dev, "failed to acquire reset: %d\n", err); + goto disable_clk; + } -static int tegra_sor_hdmi_remove(struct tegra_sor *sor) -{ - regulator_disable(sor->hdmi_supply); - regulator_disable(sor->vdd_pll_supply); - regulator_disable(sor->avdd_io_supply); + err = reset_control_deassert(sor->rst); + if (err < 0) { + dev_err(dev, "failed to deassert reset: %d\n", err); + goto release_reset; + } + } return 0; + +release_reset: + reset_control_release(sor->rst); +disable_clk: + clk_disable_unprepare(sor->clk); +put_rpm: + pm_runtime_put_sync(dev); + return err; } -static const struct tegra_sor_ops tegra_sor_hdmi_ops = { - .name = "HDMI", - .probe = tegra_sor_hdmi_probe, - .remove = tegra_sor_hdmi_remove, +static const struct host1x_client_ops sor_client_ops = { + .init = tegra_sor_init, + .exit = tegra_sor_exit, + .suspend = tegra_sor_runtime_suspend, + .resume = tegra_sor_runtime_resume, }; static const u8 tegra124_sor_xbar_cfg[5] = { @@ -3040,14 +3293,161 @@ static const struct tegra_sor_regs tegra124_sor_regs = { .dp_padctl2 = 0x73, }; +/* Tegra124 and Tegra132 have lanes 0 and 2 swapped. */ +static const u8 tegra124_sor_lane_map[4] = { + 2, 1, 0, 3, +}; + +static const u8 tegra124_sor_voltage_swing[4][4][4] = { + { + { 0x13, 0x19, 0x1e, 0x28 }, + { 0x1e, 0x25, 0x2d, }, + { 0x28, 0x32, }, + { 0x3c, }, + }, { + { 0x12, 0x17, 0x1b, 0x25 }, + { 0x1c, 0x23, 0x2a, }, + { 0x25, 0x2f, }, + { 0x39, } + }, { + { 0x12, 0x16, 0x1a, 0x22 }, + { 0x1b, 0x20, 0x27, }, + { 0x24, 0x2d, }, + { 0x36, }, + }, { + { 0x11, 0x14, 0x17, 0x1f }, + { 0x19, 0x1e, 0x24, }, + { 0x22, 0x2a, }, + { 0x32, }, + }, +}; + +static const u8 tegra124_sor_pre_emphasis[4][4][4] = { + { + { 0x00, 0x09, 0x13, 0x25 }, + { 0x00, 0x0f, 0x1e, }, + { 0x00, 0x14, }, + { 0x00, }, + }, { + { 0x00, 0x0a, 0x14, 0x28 }, + { 0x00, 0x0f, 0x1e, }, + { 0x00, 0x14, }, + { 0x00 }, + }, { + { 0x00, 0x0a, 0x14, 0x28 }, + { 0x00, 0x0f, 0x1e, }, + { 0x00, 0x14, }, + { 0x00, }, + }, { + { 0x00, 0x0a, 0x14, 0x28 }, + { 0x00, 0x0f, 0x1e, }, + { 0x00, 0x14, }, + { 0x00, }, + }, +}; + +static const u8 tegra124_sor_post_cursor[4][4][4] = { + { + { 0x00, 0x00, 0x00, 0x00 }, + { 0x00, 0x00, 0x00, }, + { 0x00, 0x00, }, + { 0x00, }, + }, { + { 0x02, 0x02, 0x04, 0x05 }, + { 0x02, 0x04, 0x05, }, + { 0x04, 0x05, }, + { 0x05, }, + }, { + { 0x04, 0x05, 0x08, 0x0b }, + { 0x05, 0x09, 0x0b, }, + { 0x08, 0x0a, }, + { 0x0b, }, + }, { + { 0x05, 0x09, 0x0b, 0x12 }, + { 0x09, 0x0d, 0x12, }, + { 0x0b, 0x0f, }, + { 0x12, }, + }, +}; + +static const u8 tegra124_sor_tx_pu[4][4][4] = { + { + { 0x20, 0x30, 0x40, 0x60 }, + { 0x30, 0x40, 0x60, }, + { 0x40, 0x60, }, + { 0x60, }, + }, { + { 0x20, 0x20, 0x30, 0x50 }, + { 0x30, 0x40, 0x50, }, + { 0x40, 0x50, }, + { 0x60, }, + }, { + { 0x20, 0x20, 0x30, 0x40, }, + { 0x30, 0x30, 0x40, }, + { 0x40, 0x50, }, + { 0x60, }, + }, { + { 0x20, 0x20, 0x20, 0x40, }, + { 0x30, 0x30, 0x40, }, + { 0x40, 0x40, }, + { 0x60, }, + }, +}; + static const struct tegra_sor_soc tegra124_sor = { - .supports_edp = true, .supports_lvds = true, .supports_hdmi = false, - .supports_dp = false, + .supports_dp = true, + .supports_audio = false, + .supports_hdcp = false, + .regs = &tegra124_sor_regs, + .has_nvdisplay = false, + .xbar_cfg = tegra124_sor_xbar_cfg, + .lane_map = tegra124_sor_lane_map, + .voltage_swing = tegra124_sor_voltage_swing, + .pre_emphasis = tegra124_sor_pre_emphasis, + .post_cursor = tegra124_sor_post_cursor, + .tx_pu = tegra124_sor_tx_pu, +}; + +static const u8 tegra132_sor_pre_emphasis[4][4][4] = { + { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x01, 0x0e, 0x1d, }, + { 0x01, 0x13, }, + { 0x00, }, + }, { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x00, 0x0e, 0x1d, }, + { 0x00, 0x13, }, + { 0x00 }, + }, { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x00, 0x0e, 0x1d, }, + { 0x00, 0x13, }, + { 0x00, }, + }, { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x00, 0x0e, 0x1d, }, + { 0x00, 0x13, }, + { 0x00, }, + }, +}; + +static const struct tegra_sor_soc tegra132_sor = { + .supports_lvds = true, + .supports_hdmi = false, + .supports_dp = true, + .supports_audio = false, + .supports_hdcp = false, .regs = &tegra124_sor_regs, .has_nvdisplay = false, .xbar_cfg = tegra124_sor_xbar_cfg, + .lane_map = tegra124_sor_lane_map, + .voltage_swing = tegra124_sor_voltage_swing, + .pre_emphasis = tegra132_sor_pre_emphasis, + .post_cursor = tegra124_sor_post_cursor, + .tx_pu = tegra124_sor_tx_pu, }; static const struct tegra_sor_regs tegra210_sor_regs = { @@ -3065,33 +3465,50 @@ static const struct tegra_sor_regs tegra210_sor_regs = { .dp_padctl2 = 0x73, }; +static const u8 tegra210_sor_xbar_cfg[5] = { + 2, 1, 0, 3, 4 +}; + +static const u8 tegra210_sor_lane_map[4] = { + 0, 1, 2, 3, +}; + static const struct tegra_sor_soc tegra210_sor = { - .supports_edp = true, .supports_lvds = false, .supports_hdmi = false, - .supports_dp = false, + .supports_dp = true, + .supports_audio = false, + .supports_hdcp = false, + .regs = &tegra210_sor_regs, .has_nvdisplay = false, - .xbar_cfg = tegra124_sor_xbar_cfg, -}; -static const u8 tegra210_sor_xbar_cfg[5] = { - 2, 1, 0, 3, 4 + .xbar_cfg = tegra210_sor_xbar_cfg, + .lane_map = tegra210_sor_lane_map, + .voltage_swing = tegra124_sor_voltage_swing, + .pre_emphasis = tegra124_sor_pre_emphasis, + .post_cursor = tegra124_sor_post_cursor, + .tx_pu = tegra124_sor_tx_pu, }; static const struct tegra_sor_soc tegra210_sor1 = { - .supports_edp = false, .supports_lvds = false, .supports_hdmi = true, .supports_dp = true, + .supports_audio = true, + .supports_hdcp = true, .regs = &tegra210_sor_regs, .has_nvdisplay = false, .num_settings = ARRAY_SIZE(tegra210_sor_hdmi_defaults), .settings = tegra210_sor_hdmi_defaults, - .xbar_cfg = tegra210_sor_xbar_cfg, + .lane_map = tegra210_sor_lane_map, + .voltage_swing = tegra124_sor_voltage_swing, + .pre_emphasis = tegra124_sor_pre_emphasis, + .post_cursor = tegra124_sor_post_cursor, + .tx_pu = tegra124_sor_tx_pu, }; static const struct tegra_sor_regs tegra186_sor_regs = { @@ -3109,31 +3526,72 @@ static const struct tegra_sor_regs tegra186_sor_regs = { .dp_padctl2 = 0x16a, }; -static const struct tegra_sor_soc tegra186_sor = { - .supports_edp = false, - .supports_lvds = false, - .supports_hdmi = false, - .supports_dp = true, - - .regs = &tegra186_sor_regs, - .has_nvdisplay = true, +static const u8 tegra186_sor_voltage_swing[4][4][4] = { + { + { 0x13, 0x19, 0x1e, 0x28 }, + { 0x1e, 0x25, 0x2d, }, + { 0x28, 0x32, }, + { 0x39, }, + }, { + { 0x12, 0x16, 0x1b, 0x25 }, + { 0x1c, 0x23, 0x2a, }, + { 0x25, 0x2f, }, + { 0x37, } + }, { + { 0x12, 0x16, 0x1a, 0x22 }, + { 0x1b, 0x20, 0x27, }, + { 0x24, 0x2d, }, + { 0x35, }, + }, { + { 0x11, 0x14, 0x17, 0x1f }, + { 0x19, 0x1e, 0x24, }, + { 0x22, 0x2a, }, + { 0x32, }, + }, +}; - .xbar_cfg = tegra124_sor_xbar_cfg, +static const u8 tegra186_sor_pre_emphasis[4][4][4] = { + { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x01, 0x0e, 0x1d, }, + { 0x01, 0x13, }, + { 0x00, }, + }, { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x00, 0x0e, 0x1d, }, + { 0x00, 0x13, }, + { 0x00 }, + }, { + { 0x00, 0x08, 0x14, 0x24 }, + { 0x00, 0x0e, 0x1d, }, + { 0x00, 0x13, }, + { 0x00, }, + }, { + { 0x00, 0x08, 0x12, 0x24 }, + { 0x00, 0x0e, 0x1d, }, + { 0x00, 0x13, }, + { 0x00, }, + }, }; -static const struct tegra_sor_soc tegra186_sor1 = { - .supports_edp = false, +static const struct tegra_sor_soc tegra186_sor = { .supports_lvds = false, .supports_hdmi = true, .supports_dp = true, + .supports_audio = true, + .supports_hdcp = true, .regs = &tegra186_sor_regs, .has_nvdisplay = true, .num_settings = ARRAY_SIZE(tegra186_sor_hdmi_defaults), .settings = tegra186_sor_hdmi_defaults, - .xbar_cfg = tegra124_sor_xbar_cfg, + .lane_map = tegra124_sor_lane_map, + .voltage_swing = tegra186_sor_voltage_swing, + .pre_emphasis = tegra186_sor_pre_emphasis, + .post_cursor = tegra124_sor_post_cursor, + .tx_pu = tegra124_sor_tx_pu, }; static const struct tegra_sor_regs tegra194_sor_regs = { @@ -3152,10 +3610,11 @@ static const struct tegra_sor_regs tegra194_sor_regs = { }; static const struct tegra_sor_soc tegra194_sor = { - .supports_edp = true, .supports_lvds = false, .supports_hdmi = true, .supports_dp = true, + .supports_audio = true, + .supports_hdcp = true, .regs = &tegra194_sor_regs, .has_nvdisplay = true, @@ -3164,14 +3623,19 @@ static const struct tegra_sor_soc tegra194_sor = { .settings = tegra194_sor_hdmi_defaults, .xbar_cfg = tegra210_sor_xbar_cfg, + .lane_map = tegra124_sor_lane_map, + .voltage_swing = tegra186_sor_voltage_swing, + .pre_emphasis = tegra186_sor_pre_emphasis, + .post_cursor = tegra124_sor_post_cursor, + .tx_pu = tegra124_sor_tx_pu, }; static const struct of_device_id tegra_sor_of_match[] = { { .compatible = "nvidia,tegra194-sor", .data = &tegra194_sor }, - { .compatible = "nvidia,tegra186-sor1", .data = &tegra186_sor1 }, { .compatible = "nvidia,tegra186-sor", .data = &tegra186_sor }, { .compatible = "nvidia,tegra210-sor1", .data = &tegra210_sor1 }, { .compatible = "nvidia,tegra210-sor", .data = &tegra210_sor }, + { .compatible = "nvidia,tegra132-sor", .data = &tegra132_sor }, { .compatible = "nvidia,tegra124-sor", .data = &tegra124_sor }, { }, }; @@ -3197,6 +3661,11 @@ static int tegra_sor_parse_dt(struct tegra_sor *sor) * earlier */ sor->pad = TEGRA_IO_PAD_HDMI_DP0 + sor->index; + } else { + if (!sor->soc->supports_audio) + sor->index = 0; + else + sor->index = 1; } err = of_property_read_u32_array(np, "nvidia,xbar-cfg", xbar_cfg, 5); @@ -3231,9 +3700,11 @@ static irqreturn_t tegra_sor_irq(int irq, void *data) tegra_hda_parse_format(format, &sor->format); - tegra_sor_hdmi_audio_enable(sor); + if (sor->ops->audio_enable) + sor->ops->audio_enable(sor); } else { - tegra_sor_hdmi_audio_disable(sor); + if (sor->ops->audio_disable) + sor->ops->audio_disable(sor); } } @@ -3270,6 +3741,8 @@ static int tegra_sor_probe(struct platform_device *pdev) if (!sor->aux) return -EPROBE_DEFER; + + sor->output.ddc = &sor->aux->ddc; } if (!sor->aux) { @@ -3284,16 +3757,15 @@ static int tegra_sor_probe(struct platform_device *pdev) return -ENODEV; } } else { - if (sor->soc->supports_edp) { - sor->ops = &tegra_sor_edp_ops; - sor->pad = TEGRA_IO_PAD_LVDS; - } else if (sor->soc->supports_dp) { - dev_err(&pdev->dev, "DisplayPort not supported yet\n"); - return -ENODEV; - } else { - dev_err(&pdev->dev, "unknown (DP) support\n"); - return -ENODEV; - } + np = of_parse_phandle(pdev->dev.of_node, "nvidia,panel", 0); + /* + * No need to keep this around since we only use it as a check + * to see if a panel is connected (eDP) or not (DP). + */ + of_node_put(np); + + sor->ops = &tegra_sor_dp_ops; + sor->pad = TEGRA_IO_PAD_LVDS; } err = tegra_sor_parse_dt(sor); @@ -3443,43 +3915,54 @@ static int tegra_sor_probe(struct platform_device *pdev) platform_set_drvdata(pdev, sor); pm_runtime_enable(&pdev->dev); + INIT_LIST_HEAD(&sor->client.list); + sor->client.ops = &sor_client_ops; + sor->client.dev = &pdev->dev; + + err = host1x_client_register(&sor->client); + if (err < 0) { + dev_err(&pdev->dev, "failed to register host1x client: %d\n", + err); + goto rpm_disable; + } + /* * On Tegra210 and earlier, provide our own implementation for the * pad output clock. */ if (!sor->clk_pad) { - err = pm_runtime_get_sync(&pdev->dev); + char *name; + + name = devm_kasprintf(sor->dev, GFP_KERNEL, "sor%u_pad_clkout", + sor->index); + if (!name) { + err = -ENOMEM; + goto unregister; + } + + err = host1x_client_resume(&sor->client); if (err < 0) { - dev_err(&pdev->dev, "failed to get runtime PM: %d\n", - err); - goto remove; + dev_err(sor->dev, "failed to resume: %d\n", err); + goto unregister; } - sor->clk_pad = tegra_clk_sor_pad_register(sor, - "sor1_pad_clkout"); - pm_runtime_put(&pdev->dev); + sor->clk_pad = tegra_clk_sor_pad_register(sor, name); + host1x_client_suspend(&sor->client); } if (IS_ERR(sor->clk_pad)) { err = PTR_ERR(sor->clk_pad); - dev_err(&pdev->dev, "failed to register SOR pad clock: %d\n", - err); - goto remove; - } - - INIT_LIST_HEAD(&sor->client.list); - sor->client.ops = &sor_client_ops; - sor->client.dev = &pdev->dev; - - err = host1x_client_register(&sor->client); - if (err < 0) { - dev_err(&pdev->dev, "failed to register host1x client: %d\n", + dev_err(sor->dev, "failed to register SOR pad clock: %d\n", err); - goto remove; + goto unregister; } return 0; +unregister: + host1x_client_unregister(&sor->client); +rpm_disable: + pm_runtime_disable(&pdev->dev); remove: if (sor->ops && sor->ops->remove) sor->ops->remove(sor); @@ -3493,8 +3976,6 @@ static int tegra_sor_remove(struct platform_device *pdev) struct tegra_sor *sor = platform_get_drvdata(pdev); int err; - pm_runtime_disable(&pdev->dev); - err = host1x_client_unregister(&sor->client); if (err < 0) { dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", @@ -3502,6 +3983,8 @@ static int tegra_sor_remove(struct platform_device *pdev) return err; } + pm_runtime_disable(&pdev->dev); + if (sor->ops && sor->ops->remove) { err = sor->ops->remove(sor); if (err < 0) @@ -3513,65 +3996,54 @@ static int tegra_sor_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int tegra_sor_suspend(struct device *dev) +static int __maybe_unused tegra_sor_suspend(struct device *dev) { struct tegra_sor *sor = dev_get_drvdata(dev); int err; - if (sor->rst) { - err = reset_control_assert(sor->rst); + err = tegra_output_suspend(&sor->output); + if (err < 0) { + dev_err(dev, "failed to suspend output: %d\n", err); + return err; + } + + if (sor->hdmi_supply) { + err = regulator_disable(sor->hdmi_supply); if (err < 0) { - dev_err(dev, "failed to assert reset: %d\n", err); + tegra_output_resume(&sor->output); return err; } - - reset_control_release(sor->rst); } - usleep_range(1000, 2000); - - clk_disable_unprepare(sor->clk); - return 0; } -static int tegra_sor_resume(struct device *dev) +static int __maybe_unused tegra_sor_resume(struct device *dev) { struct tegra_sor *sor = dev_get_drvdata(dev); int err; - err = clk_prepare_enable(sor->clk); - if (err < 0) { - dev_err(dev, "failed to enable clock: %d\n", err); - return err; + if (sor->hdmi_supply) { + err = regulator_enable(sor->hdmi_supply); + if (err < 0) + return err; } - usleep_range(1000, 2000); + err = tegra_output_resume(&sor->output); + if (err < 0) { + dev_err(dev, "failed to resume output: %d\n", err); - if (sor->rst) { - err = reset_control_acquire(sor->rst); - if (err < 0) { - dev_err(dev, "failed to acquire reset: %d\n", err); - clk_disable_unprepare(sor->clk); - return err; - } + if (sor->hdmi_supply) + regulator_disable(sor->hdmi_supply); - err = reset_control_deassert(sor->rst); - if (err < 0) { - dev_err(dev, "failed to deassert reset: %d\n", err); - reset_control_release(sor->rst); - clk_disable_unprepare(sor->clk); - return err; - } + return err; } return 0; } -#endif static const struct dev_pm_ops tegra_sor_pm_ops = { - SET_RUNTIME_PM_OPS(tegra_sor_suspend, tegra_sor_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(tegra_sor_suspend, tegra_sor_resume) }; struct platform_driver tegra_sor_driver = { |
