diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0554-drm-vc4-crtc-Deal-with-different-number-of-pixel-per.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0554-drm-vc4-crtc-Deal-with-different-number-of-pixel-per.patch | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0554-drm-vc4-crtc-Deal-with-different-number-of-pixel-per.patch b/target/linux/bcm27xx/patches-5.4/950-0554-drm-vc4-crtc-Deal-with-different-number-of-pixel-per.patch new file mode 100644 index 0000000000..5949e616f9 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0554-drm-vc4-crtc-Deal-with-different-number-of-pixel-per.patch @@ -0,0 +1,86 @@ +From b8714036be64c86a274ea49ba0066af0a81c6b98 Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime@cerno.tech> +Date: Thu, 26 Dec 2019 11:36:50 +0100 +Subject: [PATCH] drm/vc4: crtc: Deal with different number of pixel + per clock + +Some of the HDMI pixelvalves in vc5 output two pixels per clock cycle. +Let's put the number of pixel output per clock cycle in the CRTC data and +update the various calculations to reflect that. + +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + drivers/gpu/drm/vc4/vc4_crtc.c | 17 ++++++++++------- + drivers/gpu/drm/vc4/vc4_drv.h | 3 +++ + 2 files changed, 13 insertions(+), 7 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_crtc.c ++++ b/drivers/gpu/drm/vc4/vc4_crtc.c +@@ -281,6 +281,7 @@ static void vc4_crtc_config_pv(struct dr + bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 || + vc4_encoder->type == VC4_ENCODER_TYPE_DSI1); + u32 format = is_dsi ? PV_CONTROL_FORMAT_DSIV_24 : PV_CONTROL_FORMAT_24; ++ u8 ppc = vc4_crtc->data->pixels_per_clock; + + /* Reset the PV fifo. */ + CRTC_WRITE(PV_CONTROL, 0); +@@ -288,17 +289,16 @@ static void vc4_crtc_config_pv(struct dr + CRTC_WRITE(PV_CONTROL, 0); + + CRTC_WRITE(PV_HORZA, +- VC4_SET_FIELD((mode->htotal - +- mode->hsync_end) * pixel_rep, ++ VC4_SET_FIELD((mode->htotal - mode->hsync_end) * pixel_rep / ppc, + PV_HORZA_HBP) | +- VC4_SET_FIELD((mode->hsync_end - +- mode->hsync_start) * pixel_rep, ++ VC4_SET_FIELD((mode->hsync_end - mode->hsync_start) * pixel_rep / ppc, + PV_HORZA_HSYNC)); ++ + CRTC_WRITE(PV_HORZB, +- VC4_SET_FIELD((mode->hsync_start - +- mode->hdisplay) * pixel_rep, ++ VC4_SET_FIELD((mode->hsync_start - mode->hdisplay) * pixel_rep / ppc, + PV_HORZB_HFP) | +- VC4_SET_FIELD(mode->hdisplay * pixel_rep, PV_HORZB_HACTIVE)); ++ VC4_SET_FIELD(mode->hdisplay * pixel_rep / ppc, ++ PV_HORZB_HACTIVE)); + + CRTC_WRITE(PV_VERTA, + VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end, +@@ -1038,6 +1038,7 @@ static const struct drm_crtc_helper_func + static const struct vc4_crtc_data bcm2835_pv0_data = { + .hvs_channel = 0, + .debugfs_name = "crtc0_regs", ++ .pixels_per_clock = 1, + .encoder_types = { + [PV_CONTROL_CLK_SELECT_DSI] = VC4_ENCODER_TYPE_DSI0, + [PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_DPI, +@@ -1047,6 +1048,7 @@ static const struct vc4_crtc_data bcm283 + static const struct vc4_crtc_data bcm2835_pv1_data = { + .hvs_channel = 2, + .debugfs_name = "crtc1_regs", ++ .pixels_per_clock = 1, + .encoder_types = { + [PV_CONTROL_CLK_SELECT_DSI] = VC4_ENCODER_TYPE_DSI1, + [PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_SMI, +@@ -1056,6 +1058,7 @@ static const struct vc4_crtc_data bcm283 + static const struct vc4_crtc_data bcm2835_pv2_data = { + .hvs_channel = 1, + .debugfs_name = "crtc2_regs", ++ .pixels_per_clock = 1, + .encoder_types = { + [PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_HDMI, + [PV_CONTROL_CLK_SELECT_VEC] = VC4_ENCODER_TYPE_VEC, +--- a/drivers/gpu/drm/vc4/vc4_drv.h ++++ b/drivers/gpu/drm/vc4/vc4_drv.h +@@ -455,6 +455,9 @@ struct vc4_crtc_data { + /* Which channel of the HVS this pixelvalve sources from. */ + int hvs_channel; + ++ /* Number of pixels output per clock period */ ++ u8 pixels_per_clock; ++ + enum vc4_encoder_type encoder_types[4]; + const char *debugfs_name; + }; |