| Message ID | 20220218145437.18563-7-granquet@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/mediatek: Add mt8195 DisplayPort driver | expand |
HI, Guillaume: Guillaume Ranquet <granquet@baylibre.com> 於 2022年2月18日 週五 下午10:56寫道： > > Adds a bit of flexibility to support boards without CK/DE pol support I'm not sure what the term 'board' mean. Do you mean different board with different panel but all with mt8195-dpintf? If so, you should get CK/DE support from panel driver not fix this information in dpi driver. Regards, Chun-Kuang. > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> > --- > drivers/gpu/drm/mediatek/mtk_dpi.c | 22 +++++++++++++++++----- > 1 file changed, 17 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c > index 4746eb3425674..545a1337cc899 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > @@ -125,6 +125,7 @@ struct mtk_dpi_conf { > bool edge_sel_en; > const u32 *output_fmts; > u32 num_output_fmts; > + bool is_ck_de_pol; > const struct mtk_dpi_yc_limit *limit; > }; > > @@ -211,13 +212,20 @@ static void mtk_dpi_config_pol(struct mtk_dpi *dpi, > struct mtk_dpi_polarities *dpi_pol) > { > unsigned int pol; > + unsigned int mask; > > - pol = (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? 0 : CK_POL) | > - (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? 0 : DE_POL) | > - (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) | > + mask = HSYNC_POL | VSYNC_POL; > + pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) | > (dpi_pol->vsync_pol == MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL); > - mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, > - CK_POL | DE_POL | HSYNC_POL | VSYNC_POL); > + if (dpi->conf->is_ck_de_pol) { > + mask |= CK_POL | DE_POL; > + pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? > + 0 : CK_POL) | > + (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? > + 0 : DE_POL); > + } > + > + mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask); > } > > static void mtk_dpi_config_3d(struct mtk_dpi *dpi, bool en_3d) > @@ -799,6 +807,7 @@ static const struct mtk_dpi_conf mt8173_conf = { > .max_clock_khz = 300000, > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > @@ -809,6 +818,7 @@ static const struct mtk_dpi_conf mt2701_conf = { > .max_clock_khz = 150000, > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > @@ -818,6 +828,7 @@ static const struct mtk_dpi_conf mt8183_conf = { > .max_clock_khz = 100000, > .output_fmts = mt8183_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > @@ -827,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf = { > .max_clock_khz = 150000, > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > + .is_ck_de_pol = true, > .limit = &mtk_dpi_limit, > }; > > -- > 2.34.1 >
Il 18/02/22 15:54, Guillaume Ranquet ha scritto: > Adds a bit of flexibility to support boards without CK/DE pol support > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> s/board/SoC/g After the change, Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Quoting Chun-Kuang Hu (2022-02-21 03:14:02) > HI, Guillaume: > > Guillaume Ranquet <granquet@baylibre.com> 於 2022年2月18日 週五 下午10:56寫道： > > > > Adds a bit of flexibility to support boards without CK/DE pol support > > I'm not sure what the term 'board' mean. Do you mean different board > with different panel but all with mt8195-dpintf? If so, you should get > CK/DE support from panel driver not fix this information in dpi > driver. > > Regards, > Chun-Kuang. > Hi Chun-Kuang, The correct term (as pointed by Angelo) would be 'SoC' instead of 'board' I guess. My understanding is that every SoC might have or might not have CK/DE support. I'll try to dig into the documentation I have to understand exactly where this support is coming from. Thx, Guillaume. > > > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> > > --- > > drivers/gpu/drm/mediatek/mtk_dpi.c | 22 +++++++++++++++++----- > > 1 file changed, 17 insertions(+), 5 deletions(-) > > > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c > > index 4746eb3425674..545a1337cc899 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > > @@ -125,6 +125,7 @@ struct mtk_dpi_conf { > > bool edge_sel_en; > > const u32 *output_fmts; > > u32 num_output_fmts; > > + bool is_ck_de_pol; > > const struct mtk_dpi_yc_limit *limit; > > }; > > > > @@ -211,13 +212,20 @@ static void mtk_dpi_config_pol(struct mtk_dpi *dpi, > > struct mtk_dpi_polarities *dpi_pol) > > { > > unsigned int pol; > > + unsigned int mask; > > > > - pol = (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? 0 : CK_POL) | > > - (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? 0 : DE_POL) | > > - (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) | > > + mask = HSYNC_POL | VSYNC_POL; > > + pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) | > > (dpi_pol->vsync_pol == MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL); > > - mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, > > - CK_POL | DE_POL | HSYNC_POL | VSYNC_POL); > > + if (dpi->conf->is_ck_de_pol) { > > + mask |= CK_POL | DE_POL; > > + pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? > > + 0 : CK_POL) | > > + (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? > > + 0 : DE_POL); > > + } > > + > > + mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask); > > } > > > > static void mtk_dpi_config_3d(struct mtk_dpi *dpi, bool en_3d) > > @@ -799,6 +807,7 @@ static const struct mtk_dpi_conf mt8173_conf = { > > .max_clock_khz = 300000, > > .output_fmts = mt8173_output_fmts, > > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > > + .is_ck_de_pol = true, > > .limit = &mtk_dpi_limit, > > }; > > > > @@ -809,6 +818,7 @@ static const struct mtk_dpi_conf mt2701_conf = { > > .max_clock_khz = 150000, > > .output_fmts = mt8173_output_fmts, > > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > > + .is_ck_de_pol = true, > > .limit = &mtk_dpi_limit, > > }; > > > > @@ -818,6 +828,7 @@ static const struct mtk_dpi_conf mt8183_conf = { > > .max_clock_khz = 100000, > > .output_fmts = mt8183_output_fmts, > > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > > + .is_ck_de_pol = true, > > .limit = &mtk_dpi_limit, > > }; > > > > @@ -827,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf = { > > .max_clock_khz = 150000, > > .output_fmts = mt8173_output_fmts, > > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > > + .is_ck_de_pol = true, > > .limit = &mtk_dpi_limit, > > }; > > > > -- > > 2.34.1 > >
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 4746eb3425674..545a1337cc899 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -125,6 +125,7 @@ struct mtk_dpi_conf { bool edge_sel_en; const u32 *output_fmts; u32 num_output_fmts; + bool is_ck_de_pol; const struct mtk_dpi_yc_limit *limit; }; @@ -211,13 +212,20 @@ static void mtk_dpi_config_pol(struct mtk_dpi *dpi, struct mtk_dpi_polarities *dpi_pol) { unsigned int pol; + unsigned int mask; - pol = (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? 0 : CK_POL) | - (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? 0 : DE_POL) | - (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) | + mask = HSYNC_POL | VSYNC_POL; + pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) | (dpi_pol->vsync_pol == MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL); - mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, - CK_POL | DE_POL | HSYNC_POL | VSYNC_POL); + if (dpi->conf->is_ck_de_pol) { + mask |= CK_POL | DE_POL; + pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? + 0 : CK_POL) | + (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ? + 0 : DE_POL); + } + + mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask); } static void mtk_dpi_config_3d(struct mtk_dpi *dpi, bool en_3d) @@ -799,6 +807,7 @@ static const struct mtk_dpi_conf mt8173_conf = { .max_clock_khz = 300000, .output_fmts = mt8173_output_fmts, .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), + .is_ck_de_pol = true, .limit = &mtk_dpi_limit, }; @@ -809,6 +818,7 @@ static const struct mtk_dpi_conf mt2701_conf = { .max_clock_khz = 150000, .output_fmts = mt8173_output_fmts, .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), + .is_ck_de_pol = true, .limit = &mtk_dpi_limit, }; @@ -818,6 +828,7 @@ static const struct mtk_dpi_conf mt8183_conf = { .max_clock_khz = 100000, .output_fmts = mt8183_output_fmts, .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), + .is_ck_de_pol = true, .limit = &mtk_dpi_limit, }; @@ -827,6 +838,7 @@ static const struct mtk_dpi_conf mt8192_conf = { .max_clock_khz = 150000, .output_fmts = mt8173_output_fmts, .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), + .is_ck_de_pol = true, .limit = &mtk_dpi_limit, };
Adds a bit of flexibility to support boards without CK/DE pol support Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> --- drivers/gpu/drm/mediatek/mtk_dpi.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-)