diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap/linus/0006-drm-i915-Set-the-required-VFMUNIT-clock-gating-disab.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap/linus/0006-drm-i915-Set-the-required-VFMUNIT-clock-gating-disab.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap/linus/0006-drm-i915-Set-the-required-VFMUNIT-clock-gating-disab.patch b/extras/recipes-kernel/linux/linux-omap/linus/0006-drm-i915-Set-the-required-VFMUNIT-clock-gating-disab.patch new file mode 100644 index 00000000..8302e6c0 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap/linus/0006-drm-i915-Set-the-required-VFMUNIT-clock-gating-disab.patch @@ -0,0 +1,45 @@ +From b4defd15cd77597734bab7089fa721fde6e3cfd5 Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Tue, 14 Dec 2010 10:06:46 -0800 +Subject: [PATCH 06/65] drm/i915: Set the required VFMUNIT clock gating disable on Ironlake. + +It's required by the specs, but we don't know why. Let's not find out +why. + +Signed-off-by: Eric Anholt <eric@anholt.net> +Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> +--- + drivers/gpu/drm/i915/i915_reg.h | 3 +++ + drivers/gpu/drm/i915/intel_display.c | 2 ++ + 2 files changed, 5 insertions(+), 0 deletions(-) + +diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h +index 878fc76..8470a97 100644 +--- a/drivers/gpu/drm/i915/i915_reg.h ++++ b/drivers/gpu/drm/i915/i915_reg.h +@@ -2471,6 +2471,9 @@ + # define MARIUNIT_CLOCK_GATE_DISABLE (1 << 18) + # define SVSMUNIT_CLOCK_GATE_DISABLE (1 << 1) + ++#define PCH_3DCGDIS1 0x46024 ++# define VFMUNIT_CLOCK_GATE_DISABLE (1 << 11) ++ + #define FDI_PLL_FREQ_CTL 0x46030 + #define FDI_PLL_FREQ_CHANGE_REQUEST (1<<24) + #define FDI_PLL_FREQ_LOCK_LIMIT_MASK 0xfff00 +diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c +index d9b7092..97e374e 100644 +--- a/drivers/gpu/drm/i915/intel_display.c ++++ b/drivers/gpu/drm/i915/intel_display.c +@@ -5825,6 +5825,8 @@ void intel_init_clock_gating(struct drm_device *dev) + I915_WRITE(PCH_3DCGDIS0, + MARIUNIT_CLOCK_GATE_DISABLE | + SVSMUNIT_CLOCK_GATE_DISABLE); ++ I915_WRITE(PCH_3DCGDIS1, ++ VFMUNIT_CLOCK_GATE_DISABLE); + } + + I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); +-- +1.6.6.1 + |