Hi CK, On Sat, 2021-07-31 at 07:11 +0800, Chun-Kuang Hu wrote: > Hi, Jason: > > jason-jh.lin <jason-jh.lin@xxxxxxxxxxxx> 於 2021年7月30日 週五 上午1:07寫道： > > > > Add DSC into mtk_drm_ddp_comp to support for mt8195. > > > > DSC is designed for real-time systems with real-time compression, > > transmission, decompression and display. > > The DSC standard is a specification of the algorithms used for > > compressing and decompressing image display streams, including > > the specification of the syntax and semantics of the compressed > > video bit stream. > > > > Signed-off-by: jason-jh.lin <jason-jh.lin@xxxxxxxxxxxx> > > --- > > This patch is base on [1] > > > > [1]add mt8195 SoC DRM binding > > - > > https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/list/?series=519597__;!!CTRNKA9wMg0ARbw!yW7OLcmG5NUkhK7gDxpSuiBPXTW3QQQ__H78vj20PuPuz37kA6ixuMCBoUy6Wq1ohY03$ > > > > --- > > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 46 > > +++++++++++++++++++++ > > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 + > > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 + > > 3 files changed, 49 insertions(+) > > > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > > index 75bc00e17fc4..6f4a9b8c9914 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > > @@ -65,6 +65,12 @@ > > #define DITHER_ADD_LSHIFT_G(x) (((x) & 0x7) << 4) > > #define DITHER_ADD_RSHIFT_G(x) (((x) & 0x7) << 0) > > > > +#define DISP_REG_DSC_CON 0x0000 > > +#define DSC_EN BIT(0) > > +#define DSC_DUAL_INOUT BIT(2) > > +#define DSC_BYPASS BIT(4) > > +#define DSC_UFOE_SEL BIT(16) > > + > > struct mtk_ddp_comp_dev { > > struct clk *clk; > > void __iomem *regs; > > @@ -246,6 +252,35 @@ static void mtk_dither_stop(struct device > > *dev) > > writel_relaxed(0x0, priv->regs + DISP_DITHER_EN); > > } > > > > +static void mtk_dsc_config(struct device *dev, unsigned int w, > > + unsigned int h, unsigned int vrefresh, > > + unsigned int bpc, struct cmdq_pkt > > *cmdq_pkt) > > +{ > > + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > > + > > + /* dsc bypass mode */ > > + mtk_ddp_write_mask(cmdq_pkt, DSC_BYPASS, &priv->cmdq_reg, > > priv->regs, > > + DISP_REG_DSC_CON, DSC_BYPASS); > > + mtk_ddp_write_mask(cmdq_pkt, DSC_UFOE_SEL, &priv->cmdq_reg, > > priv->regs, > > + DISP_REG_DSC_CON, DSC_UFOE_SEL); > > + mtk_ddp_write_mask(cmdq_pkt, DSC_DUAL_INOUT, &priv- > > >cmdq_reg, priv->regs, > > + DISP_REG_DSC_CON, DSC_DUAL_INOUT); > > +} > > + > > +static void mtk_dsc_start(struct device *dev) > > +{ > > + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > > + > > + writel_relaxed(DSC_EN, &priv->regs + DISP_REG_DSC_CON); > > +} > > + > > +static void mtk_dsc_stop(struct device *dev) > > +{ > > + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > > + > > + writel_relaxed(0x0, priv->regs + DISP_REG_DSC_CON); > > +} > > + > > static const struct mtk_ddp_comp_funcs ddp_aal = { > > .clk_enable = mtk_ddp_clk_enable, > > .clk_disable = mtk_ddp_clk_disable, > > @@ -284,6 +319,14 @@ static const struct mtk_ddp_comp_funcs ddp_dpi > > = { > > .stop = mtk_dpi_stop, > > }; > > > > +static const struct mtk_ddp_comp_funcs ddp_dsc = { > > + .clk_enable = mtk_ddp_clk_enable, > > + .clk_disable = mtk_ddp_clk_disable, > > + .config = mtk_dsc_config, > > + .start = mtk_dsc_start, > > + .stop = mtk_dsc_stop, > > +}; > > + > > static const struct mtk_ddp_comp_funcs ddp_dsi = { > > .start = mtk_dsi_ddp_start, > > .stop = mtk_dsi_ddp_stop, > > @@ -356,6 +399,7 @@ static const char * const > > mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = { > > [MTK_DISP_MUTEX] = "mutex", > > [MTK_DISP_OD] = "od", > > [MTK_DISP_BLS] = "bls", > > + [MTK_DISP_DSC] = "dsc", > > Would you please send a patch to make alphabetic order then apply > this patch? > OK, I'll send that. > > }; > > > > struct mtk_ddp_comp_match { > > @@ -374,6 +418,8 @@ static const struct mtk_ddp_comp_match > > mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = { > > [DDP_COMPONENT_DITHER] = { MTK_DISP_DITHER, 0, > > &ddp_dither }, > > [DDP_COMPONENT_DPI0] = { MTK_DPI, 0, &ddp_dpi > > }, > > [DDP_COMPONENT_DPI1] = { MTK_DPI, 1, &ddp_dpi > > }, > > + [DDP_COMPONENT_DSC0] = { MTK_DISP_DSC, 0, &ddp_dsc > > }, > > + [DDP_COMPONENT_DSC1] = { MTK_DISP_DSC, 1, &ddp_dsc > > }, > > [DDP_COMPONENT_DSI0] = { MTK_DSI, 0, &ddp_dsi > > }, > > [DDP_COMPONENT_DSI1] = { MTK_DSI, 1, &ddp_dsi > > }, > > [DDP_COMPONENT_DSI2] = { MTK_DSI, 2, &ddp_dsi > > }, > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > > index bb914d976cf5..661fb620e266 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > > @@ -34,6 +34,7 @@ enum mtk_ddp_comp_type { > > MTK_DISP_MUTEX, > > MTK_DISP_OD, > > MTK_DISP_BLS, > > + MTK_DISP_DSC, > > Ditto. > > > MTK_DDP_COMP_TYPE_MAX, > > }; > > > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c > > b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > > index d6f6d1bdad85..0f6bb4bdc58a 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > > @@ -446,6 +446,8 @@ static const struct of_device_id > > mtk_ddp_comp_dt_ids[] = { > > .data = (void *)MTK_DISP_GAMMA, }, > > { .compatible = "mediatek,mt8183-disp-dither", > > .data = (void *)MTK_DISP_DITHER }, > > + { .compatible = "mediatek,mt8195-disp-dsc", > > + .data = (void *)MTK_DISP_DSC }, > > I would like you move this patch before the patch "add mediatek-drm > of > vdosys0 support for mt8195" and move this part into that patch. > > Regards, > Chun-Kuang. > OK, I'll move this part. Regards, Jason-JH.Lin > > { .compatible = "mediatek,mt8173-disp-ufoe", > > .data = (void *)MTK_DISP_UFOE }, > > { .compatible = "mediatek,mt2701-dsi", > > -- > > 2.18.0 > > -- Jason-JH Lin <jason-jh.lin@xxxxxxxxxxxx>
