Message ID | 20190416055242.75764-1-jitao.shi@mediatek.com |
---|---|
Headers | show |
Series | support dpi for mt8183 | expand |
Hi, Jitao: On Tue, 2019-04-16 at 13:52 +0800, Jitao Shi wrote: Where is the commit message? I think you could introduce what is dual edge (Maybe it's trivial for you, but not for me) Regards, CK > Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_dpi.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c > index 22e68a100e7b..66405159141a 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > @@ -117,6 +117,7 @@ struct mtk_dpi_conf { > unsigned int (*cal_factor)(int clock); > u32 reg_h_fre_con; > bool edge_sel_en; > + bool dual_edge; > }; > > static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask) > @@ -353,6 +354,13 @@ static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi) > mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, 0, EDGE_SEL_EN); > } > > +static void mtk_dpi_enable_dual_edge(struct mtk_dpi *dpi) > +{ > + mtk_dpi_mask(dpi, DPI_DDR_SETTING, DDR_EN | DDR_4PHASE, > + DDR_EN | DDR_4PHASE); > + mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, EDGE_SEL, EDGE_SEL); > +} > + > static void mtk_dpi_config_color_format(struct mtk_dpi *dpi, > enum mtk_dpi_out_color_format format) > { > @@ -509,6 +517,8 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi, > mtk_dpi_config_color_format(dpi, dpi->color_format); > mtk_dpi_config_2n_h_fre(dpi); > mtk_dpi_config_disable_edge(dpi); > + if (dpi->conf->dual_edge) > + mtk_dpi_enable_dual_edge(dpi); > mtk_dpi_sw_reset(dpi, false); > > return 0;
Hi, Jitao: On Tue, 2019-04-16 at 13:52 +0800, Jitao Shi wrote: I need the commit message. Even though the code is easy to understand, words for this patch is still necessary. Regards, CK > Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_dpi.c | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c > index 66405159141a..fbb087218775 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c > @@ -681,6 +681,16 @@ static unsigned int mt2701_calculate_factor(int clock) > return 2; > } > > +static unsigned int mt8183_calculate_factor(int clock) > +{ > + if (clock <= 27000) > + return 8; > + else if (clock <= 167000) > + return 4; > + else > + return 2; > +} > + > static const struct mtk_dpi_conf mt8173_conf = { > .cal_factor = mt8173_calculate_factor, > .reg_h_fre_con = 0xe0, > @@ -692,6 +702,12 @@ static const struct mtk_dpi_conf mt2701_conf = { > .edge_sel_en = true, > }; > > +static const struct mtk_dpi_conf mt8183_conf = { > + .cal_factor = mt8183_calculate_factor, > + .reg_h_fre_con = 0xe0, > + .dual_edge = true, > +}; > + > static int mtk_dpi_probe(struct platform_device *pdev) > { > struct device *dev = &pdev->dev; > @@ -787,6 +803,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = { > { .compatible = "mediatek,mt8173-dpi", > .data = &mt8173_conf, > }, > + { .compatible = "mediatek,mt8183-dpi", > + .data = &mt8183_conf, > + }, > { }, > }; >