diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0969-drm-vc4-txp-Add-horizontal-and-vertical-size-offset-.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0969-drm-vc4-txp-Add-horizontal-and-vertical-size-offset-.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0969-drm-vc4-txp-Add-horizontal-and-vertical-size-offset-.patch b/target/linux/bcm27xx/patches-6.1/950-0969-drm-vc4-txp-Add-horizontal-and-vertical-size-offset-.patch new file mode 100644 index 0000000000..290473e834 --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-0969-drm-vc4-txp-Add-horizontal-and-vertical-size-offset-.patch @@ -0,0 +1,59 @@ +From a51e4acdab01540e1006e43f38e5befb40002de0 Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime@cerno.tech> +Date: Thu, 27 Apr 2023 09:47:54 +0200 +Subject: [PATCH] drm/vc4: txp: Add horizontal and vertical size offset toggle + bit + +The new writeback controllers that can be found on the BCM2712 require +to have their horizontal and vertical size reduced by one. + +Let's tie that behaviour to the compatible so we can support both the +new and old controllers. + +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + drivers/gpu/drm/vc4/vc4_drv.h | 1 + + drivers/gpu/drm/vc4/vc4_txp.c | 14 ++++++++++++-- + 2 files changed, 13 insertions(+), 2 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_drv.h ++++ b/drivers/gpu/drm/vc4/vc4_drv.h +@@ -564,6 +564,7 @@ struct vc4_crtc_data { + struct vc4_txp_data { + struct vc4_crtc_data base; + unsigned int has_byte_enable:1; ++ unsigned int size_minus_one:1; + }; + + extern const struct vc4_txp_data bcm2835_txp_data; +--- a/drivers/gpu/drm/vc4/vc4_txp.c ++++ b/drivers/gpu/drm/vc4/vc4_txp.c +@@ -295,6 +295,8 @@ static void vc4_txp_connector_atomic_com + struct drm_gem_dma_object *gem; + struct drm_display_mode *mode; + struct drm_framebuffer *fb; ++ unsigned int hdisplay; ++ unsigned int vdisplay; + u32 ctrl; + int idx; + int i; +@@ -334,9 +336,17 @@ static void vc4_txp_connector_atomic_com + gem = drm_fb_dma_get_gem_obj(fb, 0); + TXP_WRITE(TXP_DST_PTR, gem->dma_addr + fb->offsets[0]); + TXP_WRITE(TXP_DST_PITCH, fb->pitches[0]); ++ ++ hdisplay = mode->hdisplay ?: 1; ++ vdisplay = mode->vdisplay ?: 1; ++ if (txp_data->size_minus_one) { ++ hdisplay -= 1; ++ vdisplay -= 1; ++ } ++ + TXP_WRITE(TXP_DIM, +- VC4_SET_FIELD(mode->hdisplay, TXP_WIDTH) | +- VC4_SET_FIELD(mode->vdisplay, TXP_HEIGHT)); ++ VC4_SET_FIELD(hdisplay, TXP_WIDTH) | ++ VC4_SET_FIELD(vdisplay, TXP_HEIGHT)); + + TXP_WRITE(TXP_DST_CTRL, ctrl); + |