diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0171-drm-vc4-Set-up-SCALER_DISPCTRL-at-boot.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.9/950-0171-drm-vc4-Set-up-SCALER_DISPCTRL-at-boot.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0171-drm-vc4-Set-up-SCALER_DISPCTRL-at-boot.patch b/target/linux/brcm2708/patches-4.9/950-0171-drm-vc4-Set-up-SCALER_DISPCTRL-at-boot.patch deleted file mode 100644 index 1a425cac00..0000000000 --- a/target/linux/brcm2708/patches-4.9/950-0171-drm-vc4-Set-up-SCALER_DISPCTRL-at-boot.patch +++ /dev/null @@ -1,58 +0,0 @@ -From e79b86a0c5ccd0e8c16e31b2d494d43e997253d1 Mon Sep 17 00:00:00 2001 -From: Eric Anholt <eric@anholt.net> -Date: Thu, 15 Sep 2016 15:25:23 +0100 -Subject: [PATCH] drm/vc4: Set up SCALER_DISPCTRL at boot. - -We want the HVS on, obviously, and we also want DSP3 (PV1's source) to -be muxed from HVS channel 2 like we expect in vc4_crtc.c. The -firmware wasn't setting the DSP3 mux up when both the LCD and HDMI -were disabled. - -Signed-off-by: Eric Anholt <eric@anholt.net> ---- - drivers/gpu/drm/vc4/vc4_hvs.c | 14 ++++++++++++++ - drivers/gpu/drm/vc4/vc4_regs.h | 3 +++ - 2 files changed, 17 insertions(+) - ---- a/drivers/gpu/drm/vc4/vc4_hvs.c -+++ b/drivers/gpu/drm/vc4/vc4_hvs.c -@@ -170,6 +170,7 @@ static int vc4_hvs_bind(struct device *d - struct vc4_dev *vc4 = drm->dev_private; - struct vc4_hvs *hvs = NULL; - int ret; -+ u32 dispctrl; - - hvs = devm_kzalloc(&pdev->dev, sizeof(*hvs), GFP_KERNEL); - if (!hvs) -@@ -211,6 +212,19 @@ static int vc4_hvs_bind(struct device *d - return ret; - - vc4->hvs = hvs; -+ -+ dispctrl = HVS_READ(SCALER_DISPCTRL); -+ -+ dispctrl |= SCALER_DISPCTRL_ENABLE; -+ -+ /* Set DSP3 (PV1) to use HVS channel 2, which would otherwise -+ * be unused. -+ */ -+ dispctrl &= ~SCALER_DISPCTRL_DSP3_MUX_MASK; -+ dispctrl |= VC4_SET_FIELD(2, SCALER_DISPCTRL_DSP3_MUX); -+ -+ HVS_WRITE(SCALER_DISPCTRL, dispctrl); -+ - return 0; - } - ---- a/drivers/gpu/drm/vc4/vc4_regs.h -+++ b/drivers/gpu/drm/vc4/vc4_regs.h -@@ -244,6 +244,9 @@ - # define SCALER_DISPCTRL_ENABLE BIT(31) - # define SCALER_DISPCTRL_DSP2EISLUR BIT(15) - # define SCALER_DISPCTRL_DSP1EISLUR BIT(14) -+# define SCALER_DISPCTRL_DSP3_MUX_MASK VC4_MASK(19, 18) -+# define SCALER_DISPCTRL_DSP3_MUX_SHIFT 18 -+ - /* Enables Display 0 short line and underrun contribution to - * SCALER_DISPSTAT_IRQDISP0. Note that short frame contributions are - * always enabled. |