Messages in this thread | | | Subject | Re: [PATCH v11 04/12] drm/mediatek: dpi: implement a swap_input toggle in SoC config | From | CK Hu <> | Date | Tue, 14 Jun 2022 13:27:36 +0800 |
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Hi, Bo-Chen:
On Mon, 2022-06-13 at 14:48 +0800, Bo-Chen Chen wrote: > From: Guillaume Ranquet <granquet@baylibre.com> > > The hardware design of dp_intf does not support input swap, so we add > a bit of flexibility to support SoCs without swap_input support. > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> > [Bo-Chen: Add modification reason in commit message.] > Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> > Reviewed-by: AngeloGioacchino Del Regno < > angelogioacchino.delregno@collabora.com> > Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_dpi.c | 14 +++++++++++--- > 1 file changed, 11 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c > b/drivers/gpu/drm/mediatek/mtk_dpi.c > index 15218c1e8c11..c1438c744120 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > @@ -126,6 +126,7 @@ struct mtk_dpi_conf { > const u32 *output_fmts; > u32 num_output_fmts; > bool is_ck_de_pol; > + bool swap_input_support; > const struct mtk_dpi_yc_limit *limit; > }; > > @@ -378,18 +379,21 @@ static void mtk_dpi_config_color_format(struct > mtk_dpi *dpi, > (format == MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL)) { > mtk_dpi_config_yuv422_enable(dpi, false); > mtk_dpi_config_csc_enable(dpi, true); > - mtk_dpi_config_swap_input(dpi, false); > + if (dpi->conf->swap_input_support) > + mtk_dpi_config_swap_input(dpi, false); > mtk_dpi_config_channel_swap(dpi, > MTK_DPI_OUT_CHANNEL_SWAP_BGR); > } else if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_422) || > (format == MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL)) { > mtk_dpi_config_yuv422_enable(dpi, true); > mtk_dpi_config_csc_enable(dpi, true); > - mtk_dpi_config_swap_input(dpi, true); > + if (dpi->conf->swap_input_support) > + mtk_dpi_config_swap_input(dpi, true);
In this case, we need swap input, but hardware does not support, so just skip config hardware and everything works fine? Should print any error message?
Regards, CK
> mtk_dpi_config_channel_swap(dpi, > MTK_DPI_OUT_CHANNEL_SWAP_RGB); > } else { > mtk_dpi_config_yuv422_enable(dpi, false); > mtk_dpi_config_csc_enable(dpi, false); > - mtk_dpi_config_swap_input(dpi, false); > + if (dpi->conf->swap_input_support) > + mtk_dpi_config_swap_input(dpi, false); > mtk_dpi_config_channel_swap(dpi, > MTK_DPI_OUT_CHANNEL_SWAP_RGB); > } > } > @@ -808,6 +812,7 @@ static const struct mtk_dpi_conf mt8173_conf = { > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > .limit = &mtk_dpi_limit, > }; > > @@ -819,6 +824,7 @@ static const struct mtk_dpi_conf mt2701_conf = { > .output_fmts = mt8173_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > .limit = &mtk_dpi_limit, > }; > > @@ -829,6 +835,7 @@ static const struct mtk_dpi_conf mt8183_conf = { > .output_fmts = mt8183_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > .limit = &mtk_dpi_limit, > }; > > @@ -839,6 +846,7 @@ static const struct mtk_dpi_conf mt8192_conf = { > .output_fmts = mt8183_output_fmts, > .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts), > .is_ck_de_pol = true, > + .swap_input_support = true, > .limit = &mtk_dpi_limit, > }; >
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