| Message ID | 5c19bbf10153cb42ca0fb67e08606c8295c17236.1599120059.git-series.maxime@cerno.tech (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/vc4: Support BCM2711 Display Pipeline | expand |
Hi Maxime On Thu, 3 Sep 2020 at 09:03, Maxime Ripard <maxime@cerno.tech> wrote: > > Similarly to the previous patches, the CSC setup is slightly different in > the BCM2711 than in the previous generations. Let's add a callback for it. > > Tested-by: Chanwoo Choi <cw00.choi@samsung.com> > Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> > Tested-by: Stefan Wahren <stefan.wahren@i2se.com> > Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> > --- > drivers/gpu/drm/vc4/vc4_hdmi.c | 70 +++++++++++++++++++++-------------- > drivers/gpu/drm/vc4/vc4_hdmi.h | 3 ++- > 2 files changed, 45 insertions(+), 28 deletions(-) > > diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c > index c29376c3fd8a..532618e02399 100644 > --- a/drivers/gpu/drm/vc4/vc4_hdmi.c > +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c > @@ -334,6 +334,41 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) > DRM_ERROR("Failed to release power domain: %d\n", ret); > } > > +static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, bool enable) > +{ > + u32 csc_ctl; > + > + csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, > + VC4_HD_CSC_CTL_ORDER); > + > + if (enable) { > + /* CEA VICs other than #1 requre limited range RGB > + * output unless overridden by an AVI infoframe. > + * Apply a colorspace conversion to squash 0-255 down > + * to 16-235. The matrix here is: > + * > + * [ 0 0 0.8594 16] > + * [ 0 0.8594 0 16] > + * [ 0.8594 0 0 16] > + * [ 0 0 0 1] > + */ > + csc_ctl |= VC4_HD_CSC_CTL_ENABLE; > + csc_ctl |= VC4_HD_CSC_CTL_RGB2YCC; > + csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, > + VC4_HD_CSC_CTL_MODE); > + > + HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); > + HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); > + HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); > + HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); > + HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); > + HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); > + } > + > + /* The RGB order applies even when CSC is disabled. */ > + HDMI_WRITE(HDMI_CSC_CTL, csc_ctl); > +} > + > static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) > { > struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; > @@ -357,7 +392,6 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) > mode->crtc_vsync_end - > interlaced, > VC4_HDMI_VERTB_VBP)); > - u32 csc_ctl; > int ret; > > ret = pm_runtime_get_sync(&vc4_hdmi->pdev->dev); > @@ -428,41 +462,20 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) > (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) | > (hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW)); > > - csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, > - VC4_HD_CSC_CTL_ORDER); > > if (vc4_encoder->hdmi_monitor && > - drm_default_rgb_quant_range(mode) == > - HDMI_QUANTIZATION_RANGE_LIMITED) { > - /* CEA VICs other than #1 requre limited range RGB > - * output unless overridden by an AVI infoframe. > - * Apply a colorspace conversion to squash 0-255 down > - * to 16-235. The matrix here is: > - * > - * [ 0 0 0.8594 16] > - * [ 0 0.8594 0 16] > - * [ 0.8594 0 0 16] > - * [ 0 0 0 1] > - */ > - csc_ctl |= VC4_HD_CSC_CTL_ENABLE; > - csc_ctl |= VC4_HD_CSC_CTL_RGB2YCC; > - csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, > - VC4_HD_CSC_CTL_MODE); > + drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED) { > + if (vc4_hdmi->variant->csc_setup) > + vc4_hdmi->variant->csc_setup(vc4_hdmi, true); > > - HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); > - HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); > - HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); > - HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); > - HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); > - HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); > vc4_encoder->limited_rgb_range = true; > } else { > + if (vc4_hdmi->variant->csc_setup) > + vc4_hdmi->variant->csc_setup(vc4_hdmi, false); > + > vc4_encoder->limited_rgb_range = false; > } > > - /* The RGB order applies even when CSC is disabled. */ > - HDMI_WRITE(HDMI_CSC_CTL, csc_ctl); > - > HDMI_WRITE(HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N); > > if (debug_dump_regs) { > @@ -1430,6 +1443,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = { > .num_registers = ARRAY_SIZE(vc4_hdmi_fields), > > .init_resources = vc4_hdmi_init_resources, > + .csc_setup = vc4_hdmi_csc_setup, > .reset = vc4_hdmi_reset, > .phy_init = vc4_hdmi_phy_init, > .phy_disable = vc4_hdmi_phy_disable, > diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h > index 950accbc44e4..c8fd58548ea2 100644 > --- a/drivers/gpu/drm/vc4/vc4_hdmi.h > +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h > @@ -41,6 +41,9 @@ struct vc4_hdmi_variant { > /* Callback to reset the HDMI block */ > void (*reset)(struct vc4_hdmi *vc4_hdmi); > > + /* Callback to enable / disable the CSC */ > + void (*csc_setup)(struct vc4_hdmi *vc4_hdmi, bool enable); > + > /* Callback to initialize the PHY according to the mode */ > void (*phy_init)(struct vc4_hdmi *vc4_hdmi, > struct drm_display_mode *mode); > -- > git-series 0.9.1
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index c29376c3fd8a..532618e02399 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -334,6 +334,41 @@ static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) DRM_ERROR("Failed to release power domain: %d\n", ret); } +static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, bool enable) +{ + u32 csc_ctl; + + csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, + VC4_HD_CSC_CTL_ORDER); + + if (enable) { + /* CEA VICs other than #1 requre limited range RGB + * output unless overridden by an AVI infoframe. + * Apply a colorspace conversion to squash 0-255 down + * to 16-235. The matrix here is: + * + * [ 0 0 0.8594 16] + * [ 0 0.8594 0 16] + * [ 0.8594 0 0 16] + * [ 0 0 0 1] + */ + csc_ctl |= VC4_HD_CSC_CTL_ENABLE; + csc_ctl |= VC4_HD_CSC_CTL_RGB2YCC; + csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, + VC4_HD_CSC_CTL_MODE); + + HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); + HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); + HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); + HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); + } + + /* The RGB order applies even when CSC is disabled. */ + HDMI_WRITE(HDMI_CSC_CTL, csc_ctl); +} + static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) { struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; @@ -357,7 +392,6 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) mode->crtc_vsync_end - interlaced, VC4_HDMI_VERTB_VBP)); - u32 csc_ctl; int ret; ret = pm_runtime_get_sync(&vc4_hdmi->pdev->dev); @@ -428,41 +462,20 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) | (hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW)); - csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR, - VC4_HD_CSC_CTL_ORDER); if (vc4_encoder->hdmi_monitor && - drm_default_rgb_quant_range(mode) == - HDMI_QUANTIZATION_RANGE_LIMITED) { - /* CEA VICs other than #1 requre limited range RGB - * output unless overridden by an AVI infoframe. - * Apply a colorspace conversion to squash 0-255 down - * to 16-235. The matrix here is: - * - * [ 0 0 0.8594 16] - * [ 0 0.8594 0 16] - * [ 0.8594 0 0 16] - * [ 0 0 0 1] - */ - csc_ctl |= VC4_HD_CSC_CTL_ENABLE; - csc_ctl |= VC4_HD_CSC_CTL_RGB2YCC; - csc_ctl |= VC4_SET_FIELD(VC4_HD_CSC_CTL_MODE_CUSTOM, - VC4_HD_CSC_CTL_MODE); + drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED) { + if (vc4_hdmi->variant->csc_setup) + vc4_hdmi->variant->csc_setup(vc4_hdmi, true); - HDMI_WRITE(HDMI_CSC_12_11, (0x000 << 16) | 0x000); - HDMI_WRITE(HDMI_CSC_14_13, (0x100 << 16) | 0x6e0); - HDMI_WRITE(HDMI_CSC_22_21, (0x6e0 << 16) | 0x000); - HDMI_WRITE(HDMI_CSC_24_23, (0x100 << 16) | 0x000); - HDMI_WRITE(HDMI_CSC_32_31, (0x000 << 16) | 0x6e0); - HDMI_WRITE(HDMI_CSC_34_33, (0x100 << 16) | 0x000); vc4_encoder->limited_rgb_range = true; } else { + if (vc4_hdmi->variant->csc_setup) + vc4_hdmi->variant->csc_setup(vc4_hdmi, false); + vc4_encoder->limited_rgb_range = false; } - /* The RGB order applies even when CSC is disabled. */ - HDMI_WRITE(HDMI_CSC_CTL, csc_ctl); - HDMI_WRITE(HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N); if (debug_dump_regs) { @@ -1430,6 +1443,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = { .num_registers = ARRAY_SIZE(vc4_hdmi_fields), .init_resources = vc4_hdmi_init_resources, + .csc_setup = vc4_hdmi_csc_setup, .reset = vc4_hdmi_reset, .phy_init = vc4_hdmi_phy_init, .phy_disable = vc4_hdmi_phy_disable, diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 950accbc44e4..c8fd58548ea2 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -41,6 +41,9 @@ struct vc4_hdmi_variant { /* Callback to reset the HDMI block */ void (*reset)(struct vc4_hdmi *vc4_hdmi); + /* Callback to enable / disable the CSC */ + void (*csc_setup)(struct vc4_hdmi *vc4_hdmi, bool enable); + /* Callback to initialize the PHY according to the mode */ void (*phy_init)(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode);