From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Define a TRANS_DP_PIPE_TO_PORT() to make the CPT DP .get_hw_state()
pipe readout neater.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_dp.c | 26 +++++---------------------
2 files changed, 6 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index dcd93b5..0538b24 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6410,6 +6410,7 @@ enum skl_disp_power_wells {
#define TRANS_DP_PORT_SEL_D (2<<29)
#define TRANS_DP_PORT_SEL_NONE (3<<29)
#define TRANS_DP_PORT_SEL_MASK (3<<29)
+#define TRANS_DP_PIPE_TO_PORT(val) ((((val) & TRANS_DP_PORT_SEL_MASK) >> 29) + PORT_B)
#define TRANS_DP_AUDIO_ONLY (1<<26)
#define TRANS_DP_ENH_FRAMING (1<<18)
#define TRANS_DP_8BPC (0<<9)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 0971a5d..dc89931 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2177,28 +2177,12 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
if (IS_GEN7(dev) && port == PORT_A) {
*pipe = PORT_TO_PIPE_CPT(tmp);
} else if (HAS_PCH_CPT(dev) && port != PORT_A) {
- u32 trans_sel;
- u32 trans_dp;
- int i;
-
- switch (intel_dp->output_reg) {
- case PCH_DP_B:
- trans_sel = TRANS_DP_PORT_SEL_B;
- break;
- case PCH_DP_C:
- trans_sel = TRANS_DP_PORT_SEL_C;
- break;
- case PCH_DP_D:
- trans_sel = TRANS_DP_PORT_SEL_D;
- break;
- default:
- return true;
- }
+ enum pipe p;
- for_each_pipe(dev_priv, i) {
- trans_dp = I915_READ(TRANS_DP_CTL(i));
- if ((trans_dp & TRANS_DP_PORT_SEL_MASK) == trans_sel) {
- *pipe = i;
+ for_each_pipe(dev_priv, p) {
+ u32 trans_dp = I915_READ(TRANS_DP_CTL(p));
+ if (TRANS_DP_PIPE_TO_PORT(trans_dp) == port) {
+ *pipe = p;
return true;
}
}
--
2.0.5
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