| Message ID | 8de76ca2b478016f4dbed84e37db231e7810e56c.1649262368.git.hns@goldelico.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | MIPS: JZ4780 and CI20 HDMI | expand |
Hi, On 06/04/2022 18:26, H. Nikolaus Schaller wrote: > From: Neil Armstrong <narmstrong@baylibre.com> > > The dw-hdmi integrates an optional Color Space Conversion feature used > to handle color-space conversions. > > On some platforms, the CSC isn't built-in or non-functional. > > This adds the necessary code to disable the CSC functionality > and limit the bus format negotiation to force using the same > input bus format as the output bus format. > > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> > Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> > --- > drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 100 +++++++++++++++------- > drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | 1 + > include/drm/bridge/dw_hdmi.h | 1 + > 3 files changed, 71 insertions(+), 31 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c > index f50af40e10340..b5a665c5e406e 100644 > --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c > +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c > @@ -158,6 +158,8 @@ struct dw_hdmi { > struct hdmi_data_info hdmi_data; > const struct dw_hdmi_plat_data *plat_data; > > + bool csc_available; /* indicates if the CSC engine is usable */ > + > int vic; > > u8 edid[HDMI_EDID_LEN]; > @@ -1009,9 +1011,10 @@ static int is_color_space_interpolation(struct dw_hdmi *hdmi) > > static bool is_csc_needed(struct dw_hdmi *hdmi) > { > - return is_color_space_conversion(hdmi) || > - is_color_space_decimation(hdmi) || > - is_color_space_interpolation(hdmi); > + return hdmi->csc_available && > + (is_color_space_conversion(hdmi) || > + is_color_space_decimation(hdmi) || > + is_color_space_interpolation(hdmi)); > } > > static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi) > @@ -1064,6 +1067,9 @@ static void hdmi_video_csc(struct dw_hdmi *hdmi) > int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE; > int decimation = 0; > > + if (!hdmi->csc_available) > + return; > + > /* YCC422 interpolation to 444 mode */ > if (is_color_space_interpolation(hdmi)) > interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1; > @@ -2665,6 +2671,7 @@ static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, > u32 output_fmt, > unsigned int *num_input_fmts) > { > + struct dw_hdmi *hdmi = bridge->driver_private; > u32 *input_fmts; > unsigned int i = 0; > > @@ -2683,62 +2690,81 @@ static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, > /* 8bit */ > case MEDIA_BUS_FMT_RGB888_1X24: > input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; > - input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; > + input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; > + } > break; > case MEDIA_BUS_FMT_YUV8_1X24: > input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; > - input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; > + input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; > + } > break; > case MEDIA_BUS_FMT_UYVY8_1X16: > input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; > + input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; > + } > break; > > /* 10bit */ > case MEDIA_BUS_FMT_RGB101010_1X30: > input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; > - input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; > + input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; > + } > break; > case MEDIA_BUS_FMT_YUV10_1X30: > input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; > - input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; > + input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; > + } > break; > case MEDIA_BUS_FMT_UYVY10_1X20: > input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; > + input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; > + } > break; > > /* 12bit */ > case MEDIA_BUS_FMT_RGB121212_1X36: > input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; > - input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; > + input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; > + } > break; > case MEDIA_BUS_FMT_YUV12_1X36: > input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; > - input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; > + input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; > + } > break; > case MEDIA_BUS_FMT_UYVY12_1X24: > input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; > + if (hdmi->csc_available) { > + input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; > + input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; > + } > break; > > /* 16bit */ > case MEDIA_BUS_FMT_RGB161616_1X48: > input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48; > - input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; > + if (hdmi->csc_available) > + input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; > break; > case MEDIA_BUS_FMT_YUV16_1X48: > - input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; > - input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48; > + if (hdmi->csc_available) > + input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; > break; > > /*YUV 4:2:0 */ > @@ -2767,15 +2793,24 @@ static int dw_hdmi_bridge_atomic_check(struct drm_bridge *bridge, > { > struct dw_hdmi *hdmi = bridge->driver_private; > > - hdmi->hdmi_data.enc_out_bus_format = > - bridge_state->output_bus_cfg.format; > + if (!hdmi->csc_available && > + bridge_state->output_bus_cfg.format != bridge_state->input_bus_cfg.format) { > + dev_warn(hdmi->dev, "different input format 0x%04x & output format 0x%04x while CSC isn't usable, fallback to safe format\n", > + bridge_state->input_bus_cfg.format, > + bridge_state->output_bus_cfg.format); > + hdmi->hdmi_data.enc_out_bus_format = MEDIA_BUS_FMT_FIXED; > + hdmi->hdmi_data.enc_in_bus_format = MEDIA_BUS_FMT_FIXED; > + } else { > + hdmi->hdmi_data.enc_out_bus_format = > + bridge_state->output_bus_cfg.format; > > - hdmi->hdmi_data.enc_in_bus_format = > - bridge_state->input_bus_cfg.format; > + hdmi->hdmi_data.enc_in_bus_format = > + bridge_state->input_bus_cfg.format; > > - dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n", > - bridge_state->input_bus_cfg.format, > - bridge_state->output_bus_cfg.format); > + dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n", > + bridge_state->input_bus_cfg.format, > + bridge_state->output_bus_cfg.format); > + } > > return 0; > } > @@ -3481,6 +3516,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, > hdmi->cec = platform_device_register_full(&pdevinfo); > } > > + /* Get CSC useability from config0 register and permit override for platforms */ > + hdmi->csc_available = !plat_data->disable_csc || (config0 & HDMI_CONFIG0_CSC); > + > drm_bridge_add(&hdmi->bridge); > > return hdmi; > diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h > index 1999db05bc3b2..279722e4d1898 100644 > --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h > +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h > @@ -541,6 +541,7 @@ enum { > > /* CONFIG0_ID field values */ > HDMI_CONFIG0_I2S = 0x10, > + HDMI_CONFIG0_CSC = 0x04, > HDMI_CONFIG0_CEC = 0x02, > > /* CONFIG1_ID field values */ > diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h > index 2a1f85f9a8a3f..b2f689cbe864c 100644 > --- a/include/drm/bridge/dw_hdmi.h > +++ b/include/drm/bridge/dw_hdmi.h > @@ -157,6 +157,7 @@ struct dw_hdmi_plat_data { > unsigned long mpixelclock); > > unsigned int disable_cec : 1; > + unsigned int disable_csc : 1; > }; > > struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, Is this really still needed now you filter correctly the possible modes in patch 1 ? Neil
Hi Neil, > Am 07.04.2022 um 10:28 schrieb Neil Armstrong <narmstrong@baylibre.com>: > > Hi, > > On 06/04/2022 18:26, H. Nikolaus Schaller wrote: >> From: Neil Armstrong <narmstrong@baylibre.com> >> The dw-hdmi integrates an optional Color Space Conversion feature used >> to handle color-space conversions. >> On some platforms, the CSC isn't built-in or non-functional. >> This adds the necessary code to disable the CSC functionality >> and limit the bus format negotiation to force using the same >> input bus format as the output bus format. >> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> >> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> >> --- >> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 100 +++++++++++++++------- >> drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | 1 + >> include/drm/bridge/dw_hdmi.h | 1 + >> 3 files changed, 71 insertions(+), 31 deletions(-) >> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c >> index f50af40e10340..b5a665c5e406e 100644 >> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c >> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c >> @@ -158,6 +158,8 @@ struct dw_hdmi { >> struct hdmi_data_info hdmi_data; >> const struct dw_hdmi_plat_data *plat_data; >> + bool csc_available; /* indicates if the CSC engine is usable */ >> + >> int vic; >> u8 edid[HDMI_EDID_LEN]; >> @@ -1009,9 +1011,10 @@ static int is_color_space_interpolation(struct dw_hdmi *hdmi) >> static bool is_csc_needed(struct dw_hdmi *hdmi) >> { >> - return is_color_space_conversion(hdmi) || >> - is_color_space_decimation(hdmi) || >> - is_color_space_interpolation(hdmi); >> + return hdmi->csc_available && >> + (is_color_space_conversion(hdmi) || >> + is_color_space_decimation(hdmi) || >> + is_color_space_interpolation(hdmi)); >> } >> static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi) >> @@ -1064,6 +1067,9 @@ static void hdmi_video_csc(struct dw_hdmi *hdmi) >> int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE; >> int decimation = 0; >> + if (!hdmi->csc_available) >> + return; >> + >> /* YCC422 interpolation to 444 mode */ >> if (is_color_space_interpolation(hdmi)) >> interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1; >> @@ -2665,6 +2671,7 @@ static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, >> u32 output_fmt, >> unsigned int *num_input_fmts) >> { >> + struct dw_hdmi *hdmi = bridge->driver_private; >> u32 *input_fmts; >> unsigned int i = 0; >> @@ -2683,62 +2690,81 @@ static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, >> /* 8bit */ >> case MEDIA_BUS_FMT_RGB888_1X24: >> input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; >> - input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; >> + input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; >> + } >> break; >> case MEDIA_BUS_FMT_YUV8_1X24: >> input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; >> - input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; >> + input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; >> + } >> break; >> case MEDIA_BUS_FMT_UYVY8_1X16: >> input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; >> + input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; >> + } >> break; >> /* 10bit */ >> case MEDIA_BUS_FMT_RGB101010_1X30: >> input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; >> - input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; >> + input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; >> + } >> break; >> case MEDIA_BUS_FMT_YUV10_1X30: >> input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; >> - input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; >> + input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; >> + } >> break; >> case MEDIA_BUS_FMT_UYVY10_1X20: >> input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; >> + input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; >> + } >> break; >> /* 12bit */ >> case MEDIA_BUS_FMT_RGB121212_1X36: >> input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; >> - input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; >> + input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; >> + } >> break; >> case MEDIA_BUS_FMT_YUV12_1X36: >> input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; >> - input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; >> + input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; >> + } >> break; >> case MEDIA_BUS_FMT_UYVY12_1X24: >> input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; >> + if (hdmi->csc_available) { >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; >> + input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; >> + } >> break; >> /* 16bit */ >> case MEDIA_BUS_FMT_RGB161616_1X48: >> input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48; >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; >> + if (hdmi->csc_available) >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; >> break; >> case MEDIA_BUS_FMT_YUV16_1X48: >> - input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; >> - input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48; >> + if (hdmi->csc_available) >> + input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; >> break; >> /*YUV 4:2:0 */ >> @@ -2767,15 +2793,24 @@ static int dw_hdmi_bridge_atomic_check(struct drm_bridge *bridge, >> { >> struct dw_hdmi *hdmi = bridge->driver_private; >> - hdmi->hdmi_data.enc_out_bus_format = >> - bridge_state->output_bus_cfg.format; >> + if (!hdmi->csc_available && >> + bridge_state->output_bus_cfg.format != bridge_state->input_bus_cfg.format) { >> + dev_warn(hdmi->dev, "different input format 0x%04x & output format 0x%04x while CSC isn't usable, fallback to safe format\n", >> + bridge_state->input_bus_cfg.format, >> + bridge_state->output_bus_cfg.format); >> + hdmi->hdmi_data.enc_out_bus_format = MEDIA_BUS_FMT_FIXED; >> + hdmi->hdmi_data.enc_in_bus_format = MEDIA_BUS_FMT_FIXED; >> + } else { >> + hdmi->hdmi_data.enc_out_bus_format = >> + bridge_state->output_bus_cfg.format; >> - hdmi->hdmi_data.enc_in_bus_format = >> - bridge_state->input_bus_cfg.format; >> + hdmi->hdmi_data.enc_in_bus_format = >> + bridge_state->input_bus_cfg.format; >> - dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n", >> - bridge_state->input_bus_cfg.format, >> - bridge_state->output_bus_cfg.format); >> + dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n", >> + bridge_state->input_bus_cfg.format, >> + bridge_state->output_bus_cfg.format); >> + } >> return 0; >> } >> @@ -3481,6 +3516,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, >> hdmi->cec = platform_device_register_full(&pdevinfo); >> } >> + /* Get CSC useability from config0 register and permit override for platforms */ >> + hdmi->csc_available = !plat_data->disable_csc || (config0 & HDMI_CONFIG0_CSC); >> + >> drm_bridge_add(&hdmi->bridge); >> return hdmi; >> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h >> index 1999db05bc3b2..279722e4d1898 100644 >> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h >> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h >> @@ -541,6 +541,7 @@ enum { >> /* CONFIG0_ID field values */ >> HDMI_CONFIG0_I2S = 0x10, >> + HDMI_CONFIG0_CSC = 0x04, >> HDMI_CONFIG0_CEC = 0x02, >> /* CONFIG1_ID field values */ >> diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h >> index 2a1f85f9a8a3f..b2f689cbe864c 100644 >> --- a/include/drm/bridge/dw_hdmi.h >> +++ b/include/drm/bridge/dw_hdmi.h >> @@ -157,6 +157,7 @@ struct dw_hdmi_plat_data { >> unsigned long mpixelclock); >> unsigned int disable_cec : 1; >> + unsigned int disable_csc : 1; >> }; >> struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, > > Is this really still needed now you filter correctly the possible > modes in patch 1 ? I had not tried to remove them because they were needed in [PATCH v16] but indeed they are no longer needed. Something (which I personally don't understand) may have blocked it so far, but it is not worth further analyses. So we can shrink the series and no need to touch drm/bridge: dw-hdmi: any more! I'll now post a new v18. BR and thanks for review, Nikolaus
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index f50af40e10340..b5a665c5e406e 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -158,6 +158,8 @@ struct dw_hdmi { struct hdmi_data_info hdmi_data; const struct dw_hdmi_plat_data *plat_data; + bool csc_available; /* indicates if the CSC engine is usable */ + int vic; u8 edid[HDMI_EDID_LEN]; @@ -1009,9 +1011,10 @@ static int is_color_space_interpolation(struct dw_hdmi *hdmi) static bool is_csc_needed(struct dw_hdmi *hdmi) { - return is_color_space_conversion(hdmi) || - is_color_space_decimation(hdmi) || - is_color_space_interpolation(hdmi); + return hdmi->csc_available && + (is_color_space_conversion(hdmi) || + is_color_space_decimation(hdmi) || + is_color_space_interpolation(hdmi)); } static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi) @@ -1064,6 +1067,9 @@ static void hdmi_video_csc(struct dw_hdmi *hdmi) int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE; int decimation = 0; + if (!hdmi->csc_available) + return; + /* YCC422 interpolation to 444 mode */ if (is_color_space_interpolation(hdmi)) interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1; @@ -2665,6 +2671,7 @@ static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, u32 output_fmt, unsigned int *num_input_fmts) { + struct dw_hdmi *hdmi = bridge->driver_private; u32 *input_fmts; unsigned int i = 0; @@ -2683,62 +2690,81 @@ static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, /* 8bit */ case MEDIA_BUS_FMT_RGB888_1X24: input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; - input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; - input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; + input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; + } break; case MEDIA_BUS_FMT_YUV8_1X24: input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; - input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; - input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; + input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; + } break; case MEDIA_BUS_FMT_UYVY8_1X16: input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16; - input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; - input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24; + input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24; + } break; /* 10bit */ case MEDIA_BUS_FMT_RGB101010_1X30: input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; - input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; - input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; + input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; + } break; case MEDIA_BUS_FMT_YUV10_1X30: input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; - input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; - input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; + input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; + } break; case MEDIA_BUS_FMT_UYVY10_1X20: input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20; - input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; - input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30; + input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30; + } break; /* 12bit */ case MEDIA_BUS_FMT_RGB121212_1X36: input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; - input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; - input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; + input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; + } break; case MEDIA_BUS_FMT_YUV12_1X36: input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; - input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; - input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; + input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; + } break; case MEDIA_BUS_FMT_UYVY12_1X24: input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24; - input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; - input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; + if (hdmi->csc_available) { + input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36; + input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36; + } break; /* 16bit */ case MEDIA_BUS_FMT_RGB161616_1X48: input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48; - input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; + if (hdmi->csc_available) + input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; break; case MEDIA_BUS_FMT_YUV16_1X48: - input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; - input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48; + if (hdmi->csc_available) + input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48; break; /*YUV 4:2:0 */ @@ -2767,15 +2793,24 @@ static int dw_hdmi_bridge_atomic_check(struct drm_bridge *bridge, { struct dw_hdmi *hdmi = bridge->driver_private; - hdmi->hdmi_data.enc_out_bus_format = - bridge_state->output_bus_cfg.format; + if (!hdmi->csc_available && + bridge_state->output_bus_cfg.format != bridge_state->input_bus_cfg.format) { + dev_warn(hdmi->dev, "different input format 0x%04x & output format 0x%04x while CSC isn't usable, fallback to safe format\n", + bridge_state->input_bus_cfg.format, + bridge_state->output_bus_cfg.format); + hdmi->hdmi_data.enc_out_bus_format = MEDIA_BUS_FMT_FIXED; + hdmi->hdmi_data.enc_in_bus_format = MEDIA_BUS_FMT_FIXED; + } else { + hdmi->hdmi_data.enc_out_bus_format = + bridge_state->output_bus_cfg.format; - hdmi->hdmi_data.enc_in_bus_format = - bridge_state->input_bus_cfg.format; + hdmi->hdmi_data.enc_in_bus_format = + bridge_state->input_bus_cfg.format; - dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n", - bridge_state->input_bus_cfg.format, - bridge_state->output_bus_cfg.format); + dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n", + bridge_state->input_bus_cfg.format, + bridge_state->output_bus_cfg.format); + } return 0; } @@ -3481,6 +3516,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, hdmi->cec = platform_device_register_full(&pdevinfo); } + /* Get CSC useability from config0 register and permit override for platforms */ + hdmi->csc_available = !plat_data->disable_csc || (config0 & HDMI_CONFIG0_CSC); + drm_bridge_add(&hdmi->bridge); return hdmi; diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h index 1999db05bc3b2..279722e4d1898 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h @@ -541,6 +541,7 @@ enum { /* CONFIG0_ID field values */ HDMI_CONFIG0_I2S = 0x10, + HDMI_CONFIG0_CSC = 0x04, HDMI_CONFIG0_CEC = 0x02, /* CONFIG1_ID field values */ diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h index 2a1f85f9a8a3f..b2f689cbe864c 100644 --- a/include/drm/bridge/dw_hdmi.h +++ b/include/drm/bridge/dw_hdmi.h @@ -157,6 +157,7 @@ struct dw_hdmi_plat_data { unsigned long mpixelclock); unsigned int disable_cec : 1; + unsigned int disable_csc : 1; }; struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,