diff options
| -rw-r--r-- | drivers/gpu/drm/i915/icl_dsi.c | 87 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi_vbt.c | 1 |
3 files changed, 90 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c index 407c3065d08d..756c75d0c86c 100644 --- a/drivers/gpu/drm/i915/icl_dsi.c +++ b/drivers/gpu/drm/i915/icl_dsi.c @@ -27,7 +27,7 @@ #include "intel_dsi.h" -static enum transcoder __attribute__((unused)) dsi_port_to_transcoder(enum port port) +static enum transcoder dsi_port_to_transcoder(enum port port) { if (port == PORT_A) return TRANSCODER_DSI_0; @@ -340,6 +340,88 @@ static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder) } } +static void gen11_dsi_configure_transcoder(struct intel_encoder *encoder) +{ + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base); + u32 tmp; + enum port port; + enum transcoder dsi_trans; + + for_each_dsi_port(port, intel_dsi->ports) { + dsi_trans = dsi_port_to_transcoder(port); + tmp = I915_READ(DSI_TRANS_FUNC_CONF(dsi_trans)); + + if (intel_dsi->eotp_pkt) + tmp &= ~EOTP_DISABLED; + else + tmp |= EOTP_DISABLED; + + /* enable link calibration if freq > 1.5Gbps */ + if (intel_dsi_bitrate(intel_dsi) >= 1500 * 1000) { + tmp &= ~LINK_CALIBRATION_MASK; + tmp |= CALIBRATION_ENABLED_INITIAL_ONLY; + } + + /* configure continuous clock */ + tmp &= ~CONTINUOUS_CLK_MASK; + if (intel_dsi->clock_stop) + tmp |= CLK_ENTER_LP_AFTER_DATA; + else + tmp |= CLK_HS_CONTINUOUS; + + /* configure buffer threshold limit to minimum */ + tmp &= ~PIX_BUF_THRESHOLD_MASK; + tmp |= PIX_BUF_THRESHOLD_1_4; + + /* set virtual channel to '0' */ + tmp &= ~PIX_VIRT_CHAN_MASK; + tmp |= PIX_VIRT_CHAN(0); + + /* program BGR transmission */ + if (intel_dsi->bgr_enabled) + tmp |= BGR_TRANSMISSION; + + /* select pixel format */ + tmp &= ~PIX_FMT_MASK; + switch (intel_dsi->pixel_format) { + default: + MISSING_CASE(intel_dsi->pixel_format); + /* fallthrough */ + case MIPI_DSI_FMT_RGB565: + tmp |= PIX_FMT_RGB565; + break; + case MIPI_DSI_FMT_RGB666_PACKED: + tmp |= PIX_FMT_RGB666_PACKED; + break; + case MIPI_DSI_FMT_RGB666: + tmp |= PIX_FMT_RGB666_LOOSE; + break; + case MIPI_DSI_FMT_RGB888: + tmp |= PIX_FMT_RGB888; + break; + } + + /* program DSI operation mode */ + if (is_vid_mode(intel_dsi)) { + tmp &= ~OP_MODE_MASK; + switch (intel_dsi->video_mode_format) { + default: + MISSING_CASE(intel_dsi->video_mode_format); + /* fallthrough */ + case VIDEO_MODE_NON_BURST_WITH_SYNC_EVENTS: + tmp |= VIDEO_MODE_SYNC_EVENT; + break; + case VIDEO_MODE_NON_BURST_WITH_SYNC_PULSE: + tmp |= VIDEO_MODE_SYNC_PULSE; + break; + } + } + + I915_WRITE(DSI_TRANS_FUNC_CONF(dsi_trans), tmp); + } +} + static void gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder) { /* step 4a: power up all lanes of the DDI used by DSI */ @@ -356,6 +438,9 @@ static void gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder) /* setup D-PHY timings */ gen11_dsi_setup_dphy_timings(encoder); + + /* Step (4h, 4i, 4j, 4k): Configure transcoder */ + gen11_dsi_configure_transcoder(encoder); } static void __attribute__((unused)) diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h index 12b758ebefce..14567929de9a 100644 --- a/drivers/gpu/drm/i915/intel_dsi.h +++ b/drivers/gpu/drm/i915/intel_dsi.h @@ -81,6 +81,9 @@ struct intel_dsi { u16 dcs_backlight_ports; u16 dcs_cabc_ports; + /* RGB or BGR */ + bool bgr_enabled; + u8 pixel_overlap; u32 port_bits; u32 bw_timer; diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c index 3035422aa0d6..cca071406c25 100644 --- a/drivers/gpu/drm/i915/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c @@ -805,6 +805,7 @@ bool intel_dsi_vbt_init(struct intel_dsi *intel_dsi, u16 panel_id) intel_dsi->bw_timer = mipi_config->dbi_bw_timer; intel_dsi->video_frmt_cfg_bits = mipi_config->bta_enabled ? DISABLE_VIDEO_BTA : 0; + intel_dsi->bgr_enabled = mipi_config->rgb_flip; /* Starting point, adjusted depending on dual link and burst mode */ intel_dsi->pclk = mode->clock; |
