[Intel-gfx] [PATCH 1/4] drm/i915: Use DSI Pll1 for enabling MIPI DSI on Port C

Gaurav K Singh gaurav.k.singh at intel.com
Sun Dec 7 02:43:52 PST 2014


DSI Pll1 is used for enabling DSI on Port C.

Signed-off-by: Gaurav K Singh <gaurav.k.singh at intel.com>
---
 drivers/gpu/drm/i915/intel_dsi_pll.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi_pll.c b/drivers/gpu/drm/i915/intel_dsi_pll.c
index 8957f10..74a6fb5 100644
--- a/drivers/gpu/drm/i915/intel_dsi_pll.c
+++ b/drivers/gpu/drm/i915/intel_dsi_pll.c
@@ -243,7 +243,8 @@ static void vlv_configure_dsi_pll(struct intel_encoder *encoder)
 
 	dsi_mnp.dsi_pll_ctrl |= DSI_PLL_CLK_GATE_DSI0_DSIPLL;
 
-	if (intel_dsi->dual_link)
+	if ((intel_dsi->ports == ((1 << PORT_A) | (1 << PORT_C))) ||
+	    (intel_dsi->ports == (1 << PORT_C)))
 		dsi_mnp.dsi_pll_ctrl |= DSI_PLL_CLK_GATE_DSI1_DSIPLL;
 
 	DRM_DEBUG_KMS("dsi pll div %08x, ctrl %08x\n",
-- 
1.7.9.5



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