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[4/8] drm/i915: completely reset the value of DDI_FUNC_CTL

Message ID 1344446134-3704-5-git-send-email-przanoni@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Paulo Zanoni Aug. 8, 2012, 5:15 p.m. UTC 
From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Don't rely on previous values already set on the register. Everything
we're not explicitly setting should be zero for now.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 8b38359..ff03a3a 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -723,12 +723,7 @@  void intel_ddi_mode_set(struct drm_encoder *encoder,
 	}
 
 	/* Enable PIPE_DDI_FUNC_CTL for the pipe to work in HDMI mode */
-	temp = I915_READ(DDI_FUNC_CTL(pipe));
-	temp &= ~PIPE_DDI_PORT_MASK;
-	temp &= ~PIPE_DDI_BPC_MASK;
-	temp &= ~PIPE_DDI_MODE_SELECT_MASK;
-	temp &= ~(PIPE_DDI_PVSYNC | PIPE_DDI_PHSYNC);
-	temp |= PIPE_DDI_FUNC_ENABLE | PIPE_DDI_SELECT_PORT(port);
+	temp = PIPE_DDI_FUNC_ENABLE | PIPE_DDI_SELECT_PORT(port);
 
 	switch (intel_crtc->bpp) {
 	case 18: