| Message ID | 20230518104857.124265-4-angelogioacchino.delregno@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | MediaTek DDP GAMMA - 12-bit LUT support | expand |
Hi, Angelo: On Thu, 2023-05-18 at 12:48 +0200, AngeloGioacchino Del Regno wrote: > External email : Please do not click links or open attachments until > you have verified the sender or the content. > > > Newer SoCs support a bigger Gamma LUT table: wire up a callback > to retrieve the correct LUT size for each different Gamma IP. > > Co-developed-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> > Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> > [Angelo: Rewritten commit message/description + porting] > Signed-off-by: AngeloGioacchino Del Regno < > angelogioacchino.delregno@collabora.com> > Reviewed-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + > drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 25 ++++++++++++++++++- > -- > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 ++-- > drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 1 - > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 + > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 ++++++++ > 6 files changed, 35 insertions(+), 6 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h > b/drivers/gpu/drm/mediatek/mtk_disp_drv.h > index 75045932353e..e554b19f4830 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h > +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h > @@ -53,6 +53,7 @@ void mtk_gamma_clk_disable(struct device *dev); > void mtk_gamma_config(struct device *dev, unsigned int w, > unsigned int h, unsigned int vrefresh, > unsigned int bpc, struct cmdq_pkt *cmdq_pkt); > +unsigned int mtk_gamma_get_lut_size(struct device *dev); > void mtk_gamma_set(struct device *dev, struct drm_crtc_state > *state); > void mtk_gamma_set_common(struct device *dev, void __iomem *regs, > struct drm_crtc_state *state); > void mtk_gamma_start(struct device *dev); > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c > b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c > index ce6f2499b891..d194d9bc2e2b 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c > +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c > @@ -25,10 +25,12 @@ > #define DISP_GAMMA_LUT 0x0700 > > #define LUT_10BIT_MASK 0x03ff > +#define LUT_SIZE_DEFAULT 512 /* for setting > gamma lut from AAL */ I would like to place AAL definition in AAL driver and pass it to gamma driver. Regards, CK > > struct mtk_disp_gamma_data { > bool has_dither; > bool lut_diff; > + u16 lut_size; > }; > > /* > @@ -55,6 +57,17 @@ void mtk_gamma_clk_disable(struct device *dev) > clk_disable_unprepare(gamma->clk); > } > > +unsigned int mtk_gamma_get_lut_size(struct device *dev) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + unsigned int lut_size = LUT_SIZE_DEFAULT; > + > + if (gamma && gamma->data) > + lut_size = gamma->data->lut_size; > + > + return lut_size; > +} > + > void mtk_gamma_set_common(struct device *dev, void __iomem *regs, > struct drm_crtc_state *state) > { > struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > @@ -62,6 +75,7 @@ void mtk_gamma_set_common(struct device *dev, void > __iomem *regs, struct drm_crt > struct drm_color_lut *lut; > void __iomem *lut_base; > bool lut_diff; > + u16 lut_size; > u32 word; > u32 diff[3] = {0}; > > @@ -69,17 +83,20 @@ void mtk_gamma_set_common(struct device *dev, > void __iomem *regs, struct drm_crt > if (!state->gamma_lut) > return; > > - if (gamma && gamma->data) > + if (gamma && gamma->data) { > lut_diff = gamma->data->lut_diff; > - else > + lut_size = gamma->data->lut_size; > + } else { > lut_diff = false; > + lut_size = LUT_SIZE_DEFAULT; > + } > > reg = readl(regs + DISP_GAMMA_CFG); > reg = reg | GAMMA_LUT_EN; > writel(reg, regs + DISP_GAMMA_CFG); > lut_base = regs + DISP_GAMMA_LUT; > lut = (struct drm_color_lut *)state->gamma_lut->data; > - for (i = 0; i < MTK_LUT_SIZE; i++) { > + for (i = 0; i < lut_size; i++) { > if (!lut_diff || (i % 2 == 0)) { > word = (((lut[i].red >> 6) & LUT_10BIT_MASK) > << 20) + > (((lut[i].green >> 6) & > LUT_10BIT_MASK) << 10) + > @@ -196,10 +213,12 @@ static int mtk_disp_gamma_remove(struct > platform_device *pdev) > > static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = { > .has_dither = true, > + .lut_size = 512, > }; > > static const struct mtk_disp_gamma_data mt8183_gamma_driver_data = { > .lut_diff = true, > + .lut_size = 512, > }; > > static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = > { > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > index d40142842f85..0df62b076f49 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > @@ -958,8 +958,8 @@ int mtk_drm_crtc_create(struct drm_device > *drm_dev, > mtk_crtc->ddp_comp[i] = comp; > > if (comp->funcs) { > - if (comp->funcs->gamma_set) > - gamma_lut_size = MTK_LUT_SIZE; > + if (comp->funcs->gamma_set && comp->funcs- > >gamma_get_lut_size) > + gamma_lut_size = > mtk_ddp_gamma_get_lut_size(comp); > > if (comp->funcs->ctm_set) > has_ctm = true; > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > index 3e9046993d09..b2e50292e57d 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h > @@ -10,7 +10,6 @@ > #include "mtk_drm_ddp_comp.h" > #include "mtk_drm_plane.h" > > -#define MTK_LUT_SIZE 512 > #define MTK_MAX_BPC 10 > #define MTK_MIN_BPC 3 > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > index f114da4d36a9..c77af2e4000f 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > @@ -322,6 +322,7 @@ static const struct mtk_ddp_comp_funcs ddp_dsi = > { > static const struct mtk_ddp_comp_funcs ddp_gamma = { > .clk_enable = mtk_gamma_clk_enable, > .clk_disable = mtk_gamma_clk_disable, > + .gamma_get_lut_size = mtk_gamma_get_lut_size, > .gamma_set = mtk_gamma_set, > .config = mtk_gamma_config, > .start = mtk_gamma_start, > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > index febcaeef16a1..c1355960e195 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > @@ -67,6 +67,7 @@ struct mtk_ddp_comp_funcs { > void (*layer_config)(struct device *dev, unsigned int idx, > struct mtk_plane_state *state, > struct cmdq_pkt *cmdq_pkt); > + unsigned int (*gamma_get_lut_size)(struct device *dev); > void (*gamma_set)(struct device *dev, > struct drm_crtc_state *state); > void (*bgclr_in_on)(struct device *dev); > @@ -186,6 +187,14 @@ static inline void > mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp, > comp->funcs->layer_config(comp->dev, idx, state, > cmdq_pkt); > } > > +static inline unsigned int mtk_ddp_gamma_get_lut_size(struct > mtk_ddp_comp *comp) > +{ > + if (comp->funcs && comp->funcs->gamma_get_lut_size) > + return comp->funcs->gamma_get_lut_size(comp->dev); > + > + return 0; > +} > + > static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp, > struct drm_crtc_state *state) > { > -- > 2.40.1 >
Il 26/05/23 07:20, CK Hu (胡俊光) ha scritto: > Hi, Angelo: > > On Thu, 2023-05-18 at 12:48 +0200, AngeloGioacchino Del Regno wrote: >> External email : Please do not click links or open attachments until >> you have verified the sender or the content. >> >> >> Newer SoCs support a bigger Gamma LUT table: wire up a callback >> to retrieve the correct LUT size for each different Gamma IP. >> >> Co-developed-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> >> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> >> [Angelo: Rewritten commit message/description + porting] >> Signed-off-by: AngeloGioacchino Del Regno < >> angelogioacchino.delregno@collabora.com> >> Reviewed-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> >> --- >> drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + >> drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 25 ++++++++++++++++++- >> -- >> drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 ++-- >> drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 1 - >> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 + >> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 ++++++++ >> 6 files changed, 35 insertions(+), 6 deletions(-) >> >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h >> b/drivers/gpu/drm/mediatek/mtk_disp_drv.h >> index 75045932353e..e554b19f4830 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h >> @@ -53,6 +53,7 @@ void mtk_gamma_clk_disable(struct device *dev); >> void mtk_gamma_config(struct device *dev, unsigned int w, >> unsigned int h, unsigned int vrefresh, >> unsigned int bpc, struct cmdq_pkt *cmdq_pkt); >> +unsigned int mtk_gamma_get_lut_size(struct device *dev); >> void mtk_gamma_set(struct device *dev, struct drm_crtc_state >> *state); >> void mtk_gamma_set_common(struct device *dev, void __iomem *regs, >> struct drm_crtc_state *state); >> void mtk_gamma_start(struct device *dev); >> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c >> b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c >> index ce6f2499b891..d194d9bc2e2b 100644 >> --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c >> +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c >> @@ -25,10 +25,12 @@ >> #define DISP_GAMMA_LUT 0x0700 >> >> #define LUT_10BIT_MASK 0x03ff >> +#define LUT_SIZE_DEFAULT 512 /* for setting >> gamma lut from AAL */ > > I would like to place AAL definition in AAL driver and pass it to gamma > driver. > This is not only for AAL, actually; I should remove that comment as it may actually be misleading. The default LUT size (512) is relevant for both the AAL case and the older SoCs, where the LUT size is 512 and no multi-register. I'll remove that comment in the next version Regards, Angelo
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index 75045932353e..e554b19f4830 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -53,6 +53,7 @@ void mtk_gamma_clk_disable(struct device *dev); void mtk_gamma_config(struct device *dev, unsigned int w, unsigned int h, unsigned int vrefresh, unsigned int bpc, struct cmdq_pkt *cmdq_pkt); +unsigned int mtk_gamma_get_lut_size(struct device *dev); void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state); void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state); void mtk_gamma_start(struct device *dev); diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c index ce6f2499b891..d194d9bc2e2b 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -25,10 +25,12 @@ #define DISP_GAMMA_LUT 0x0700 #define LUT_10BIT_MASK 0x03ff +#define LUT_SIZE_DEFAULT 512 /* for setting gamma lut from AAL */ struct mtk_disp_gamma_data { bool has_dither; bool lut_diff; + u16 lut_size; }; /* @@ -55,6 +57,17 @@ void mtk_gamma_clk_disable(struct device *dev) clk_disable_unprepare(gamma->clk); } +unsigned int mtk_gamma_get_lut_size(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + unsigned int lut_size = LUT_SIZE_DEFAULT; + + if (gamma && gamma->data) + lut_size = gamma->data->lut_size; + + return lut_size; +} + void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state) { struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); @@ -62,6 +75,7 @@ void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crt struct drm_color_lut *lut; void __iomem *lut_base; bool lut_diff; + u16 lut_size; u32 word; u32 diff[3] = {0}; @@ -69,17 +83,20 @@ void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crt if (!state->gamma_lut) return; - if (gamma && gamma->data) + if (gamma && gamma->data) { lut_diff = gamma->data->lut_diff; - else + lut_size = gamma->data->lut_size; + } else { lut_diff = false; + lut_size = LUT_SIZE_DEFAULT; + } reg = readl(regs + DISP_GAMMA_CFG); reg = reg | GAMMA_LUT_EN; writel(reg, regs + DISP_GAMMA_CFG); lut_base = regs + DISP_GAMMA_LUT; lut = (struct drm_color_lut *)state->gamma_lut->data; - for (i = 0; i < MTK_LUT_SIZE; i++) { + for (i = 0; i < lut_size; i++) { if (!lut_diff || (i % 2 == 0)) { word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + @@ -196,10 +213,12 @@ static int mtk_disp_gamma_remove(struct platform_device *pdev) static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = { .has_dither = true, + .lut_size = 512, }; static const struct mtk_disp_gamma_data mt8183_gamma_driver_data = { .lut_diff = true, + .lut_size = 512, }; static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = { diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index d40142842f85..0df62b076f49 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -958,8 +958,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, mtk_crtc->ddp_comp[i] = comp; if (comp->funcs) { - if (comp->funcs->gamma_set) - gamma_lut_size = MTK_LUT_SIZE; + if (comp->funcs->gamma_set && comp->funcs->gamma_get_lut_size) + gamma_lut_size = mtk_ddp_gamma_get_lut_size(comp); if (comp->funcs->ctm_set) has_ctm = true; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h index 3e9046993d09..b2e50292e57d 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h @@ -10,7 +10,6 @@ #include "mtk_drm_ddp_comp.h" #include "mtk_drm_plane.h" -#define MTK_LUT_SIZE 512 #define MTK_MAX_BPC 10 #define MTK_MIN_BPC 3 diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index f114da4d36a9..c77af2e4000f 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -322,6 +322,7 @@ static const struct mtk_ddp_comp_funcs ddp_dsi = { static const struct mtk_ddp_comp_funcs ddp_gamma = { .clk_enable = mtk_gamma_clk_enable, .clk_disable = mtk_gamma_clk_disable, + .gamma_get_lut_size = mtk_gamma_get_lut_size, .gamma_set = mtk_gamma_set, .config = mtk_gamma_config, .start = mtk_gamma_start, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index febcaeef16a1..c1355960e195 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -67,6 +67,7 @@ struct mtk_ddp_comp_funcs { void (*layer_config)(struct device *dev, unsigned int idx, struct mtk_plane_state *state, struct cmdq_pkt *cmdq_pkt); + unsigned int (*gamma_get_lut_size)(struct device *dev); void (*gamma_set)(struct device *dev, struct drm_crtc_state *state); void (*bgclr_in_on)(struct device *dev); @@ -186,6 +187,14 @@ static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp, comp->funcs->layer_config(comp->dev, idx, state, cmdq_pkt); } +static inline unsigned int mtk_ddp_gamma_get_lut_size(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->gamma_get_lut_size) + return comp->funcs->gamma_get_lut_size(comp->dev); + + return 0; +} + static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp, struct drm_crtc_state *state) {