[PATCH 46/59] drm/i915: Fix DPLCLKA_CFGCR0 bits for Port F.

Timo Aaltonen tjaalton at ubuntu.com
Wed Mar 28 15:30:56 UTC 2018


From: Rodrigo Vivi <rodrigo.vivi at intel.com>

BugLink: http://bugs.launchpad.net/bugs/1757573

Since when it got introduced with commit '555e38d27317
("drm/i915/cnl: DDI - PLL mapping")' the support for Port F
was wrong, because Port F bits are far from bits used
for A to E.

Since Port F is not used so far we don't need to propagate
Fixes back there.

v2: Reuse _SHIFT definition to avoid complicated duplication (DK).

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Cc: Manasi Navare <manasi.d.navare at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-5-rodrigo.vivi@intel.com
(cherry picked from git://anongit.freedesktop.org/drm/drm-intel commit 376faf8a3b2ff497b1f1583ab4b23bc650711764)
Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 drivers/gpu/drm/i915/i915_reg.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d8fc869cef12..91cbbe3467cc 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8640,10 +8640,12 @@ enum skl_power_gate {
  * CNL Clocks
  */
 #define DPCLKA_CFGCR0				_MMIO(0x6C200)
-#define  DPCLKA_CFGCR0_DDI_CLK_OFF(port)	(1 << ((port)+10))
-#define  DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port)	(3 << ((port)*2))
-#define  DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(port)	((port)*2)
-#define  DPCLKA_CFGCR0_DDI_CLK_SEL(pll, port)	((pll) << ((port)*2))
+#define  DPCLKA_CFGCR0_DDI_CLK_OFF(port)	(1 << ((port) ==  PORT_F ? 23 : \
+						      (port)+10))
+#define  DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(port)	((port) == PORT_F ? 21 : \
+						(port)*2)
+#define  DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port)	(3 << DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(port))
+#define  DPCLKA_CFGCR0_DDI_CLK_SEL(pll, port)	((pll) << DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(port))
 
 /* CNL PLL */
 #define DPLL0_ENABLE		0x46010
-- 
2.15.1





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