diff options
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 82 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.h | 1 |
2 files changed, 53 insertions, 30 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index ed7c58fa595c..745eec4e8fb8 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -17,6 +17,22 @@ #include "drm.h" #include "dc.h" +struct tmds_config { + unsigned int pclk; + u32 pll0; + u32 pll1; + u32 pe_current; + u32 drive_current; +}; + +struct tegra_hdmi_config { + const struct tmds_config *tmds; + unsigned int num_tmds; + + unsigned long fuse_override_offset; + unsigned long fuse_override_value; +}; + struct tegra_hdmi { struct host1x_client client; struct tegra_output output; @@ -31,6 +47,8 @@ struct tegra_hdmi { struct clk *clk_parent; struct clk *clk; + const struct tegra_hdmi_config *config; + unsigned int audio_source; unsigned int audio_freq; bool stereo; @@ -136,14 +154,6 @@ static const struct tegra_hdmi_audio_config tegra_hdmi_audio_192k[] = { { 0, 0, 0, 0 }, }; -struct tmds_config { - unsigned int pclk; - u32 pll0; - u32 pll1; - u32 pe_current; - u32 drive_current; -}; - static const struct tmds_config tegra20_tmds_config[] = { { /* slow pixel clock modes */ .pclk = 27000000, @@ -570,8 +580,12 @@ static void tegra_hdmi_setup_tmds(struct tegra_hdmi *hdmi, tegra_hdmi_writel(hdmi, tmds->pll1, HDMI_NV_PDISP_SOR_PLL1); tegra_hdmi_writel(hdmi, tmds->pe_current, HDMI_NV_PDISP_PE_CURRENT); - value = tmds->drive_current | DRIVE_CURRENT_FUSE_OVERRIDE; - tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT); + tegra_hdmi_writel(hdmi, tmds->drive_current, + HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT); + + value = tegra_hdmi_readl(hdmi, hdmi->config->fuse_override_offset); + value |= hdmi->config->fuse_override_value; + tegra_hdmi_writel(hdmi, value, hdmi->config->fuse_override_offset); } static int tegra_output_hdmi_enable(struct tegra_output *output) @@ -582,8 +596,6 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) struct tegra_hdmi *hdmi = to_hdmi(output); struct device_node *node = hdmi->dev->of_node; unsigned int pulse_start, div82, pclk; - const struct tmds_config *tmds; - unsigned int num_tmds; unsigned long value; int retries = 1000; int err; @@ -703,17 +715,9 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) tegra_hdmi_setup_stereo_infoframe(hdmi); /* TMDS CONFIG */ - if (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) { - num_tmds = ARRAY_SIZE(tegra30_tmds_config); - tmds = tegra30_tmds_config; - } else { - num_tmds = ARRAY_SIZE(tegra20_tmds_config); - tmds = tegra20_tmds_config; - } - - for (i = 0; i < num_tmds; i++) { - if (pclk <= tmds[i].pclk) { - tegra_hdmi_setup_tmds(hdmi, &tmds[i]); + for (i = 0; i < hdmi->config->num_tmds; i++) { + if (pclk <= hdmi->config->tmds[i].pclk) { + tegra_hdmi_setup_tmds(hdmi, &hdmi->config->tmds[i]); break; } } @@ -1172,16 +1176,42 @@ static const struct host1x_client_ops hdmi_client_ops = { .exit = tegra_hdmi_exit, }; +static const struct tegra_hdmi_config tegra20_hdmi_config = { + .tmds = tegra20_tmds_config, + .num_tmds = ARRAY_SIZE(tegra20_tmds_config), + .fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT, + .fuse_override_value = 1 << 31, +}; + +static const struct tegra_hdmi_config tegra30_hdmi_config = { + .tmds = tegra30_tmds_config, + .num_tmds = ARRAY_SIZE(tegra30_tmds_config), + .fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT, + .fuse_override_value = 1 << 31, +}; + +static const struct of_device_id tegra_hdmi_of_match[] = { + { .compatible = "nvidia,tegra30-hdmi", .data = &tegra30_hdmi_config }, + { .compatible = "nvidia,tegra20-hdmi", .data = &tegra20_hdmi_config }, + { }, +}; + static int tegra_hdmi_probe(struct platform_device *pdev) { + const struct of_device_id *match; struct tegra_hdmi *hdmi; struct resource *regs; int err; + match = of_match_node(tegra_hdmi_of_match, pdev->dev.of_node); + if (!match) + return -ENODEV; + hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL); if (!hdmi) return -ENOMEM; + hdmi->config = match->data; hdmi->dev = &pdev->dev; hdmi->audio_source = AUTO; hdmi->audio_freq = 44100; @@ -1284,12 +1314,6 @@ static int tegra_hdmi_remove(struct platform_device *pdev) return 0; } -static struct of_device_id tegra_hdmi_of_match[] = { - { .compatible = "nvidia,tegra30-hdmi", }, - { .compatible = "nvidia,tegra20-hdmi", }, - { }, -}; - struct platform_driver tegra_hdmi_driver = { .driver = { .name = "tegra-hdmi", diff --git a/drivers/gpu/drm/tegra/hdmi.h b/drivers/gpu/drm/tegra/hdmi.h index 52ac36e08ccb..baf3cf343d71 100644 --- a/drivers/gpu/drm/tegra/hdmi.h +++ b/drivers/gpu/drm/tegra/hdmi.h @@ -233,7 +233,6 @@ #define DRIVE_CURRENT_LANE1(x) (((x) & 0x3f) << 8) #define DRIVE_CURRENT_LANE2(x) (((x) & 0x3f) << 16) #define DRIVE_CURRENT_LANE3(x) (((x) & 0x3f) << 24) -#define DRIVE_CURRENT_FUSE_OVERRIDE (1 << 31) #define DRIVE_CURRENT_1_500_mA 0x00 #define DRIVE_CURRENT_1_875_mA 0x01 |
