From 404faabc3f1a0e38babd9d900134fef3d41e2ae7 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Thu, 9 Jan 2014 17:08:15 +0200 Subject: [PATCH] drm/i915: vlv: make CRI clock enabling explicit during resume MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit intel_init_dpio() isn't called during resume, so we won't set the CRI clock enable bit during that time. Move the enabling to intel_reset_dpio() instead. Note that the HW reset value for this bit is 1, so probably this patch won't make any difference. We should still make the setting explicit, since BIOS could change things under us. Signed-off-by: Imre Deak Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 554e83d..7df0511 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1364,10 +1364,6 @@ static void intel_init_dpio(struct drm_device *dev) if (!IS_VALLEYVIEW(dev)) return; - /* Enable the CRI clock source so we can get at the display */ - I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) | - DPLL_INTEGRATED_CRI_CLK_VLV); - DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; } @@ -1378,6 +1374,10 @@ static void intel_reset_dpio(struct drm_device *dev) if (!IS_VALLEYVIEW(dev)) return; + /* Enable the CRI clock source so we can get at the display */ + I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) | + DPLL_INTEGRATED_CRI_CLK_VLV); + /* * From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx - * 6. De-assert cmn_reset/side_reset. Same as VLV X0. -- 2.7.4