diff options
author | Sonika Jindal <[email protected]> | 2015-09-24 10:22:54 +0530 |
---|---|---|
committer | Daniel Vetter <[email protected]> | 2015-09-30 10:20:02 +0200 |
commit | 9c58a049566566a8dc5aa1874ddfb3d32f954260 (patch) | |
tree | 68b25933b3affb40a101ec9fdbc53fbf7de2138f | |
parent | d9d7000d5a4dfda6aa54907b96cfa490f4140aa9 (diff) |
drm/i915/bxt: Set oscaledcompmethod to enable scale value
Bspec update tells that we have to enable oscaledcompmethod instead of
ouniqetrangenmethod for enabling scale value during swing programming.
v2: Adding back 'don't care' values to bxt_ddi_translations_dp and add
error message if ouniquetrangemethod was set (Imre)
Signed-off-by: Sonika Jindal <[email protected]>
Reviewed-by: Sivakumar Thulasimani <[email protected]>(v1)
Reviewed-by: Imre Deak <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
-rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 8 |
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 56157eb8719b..184b1237a868 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1395,7 +1395,8 @@ enum skl_disp_power_wells { #define BXT_PORT_TX_DW3_LN0(port) _PORT3(port, _PORT_TX_DW3_LN0_A, \ _PORT_TX_DW3_LN0_B, \ _PORT_TX_DW3_LN0_C) -#define UNIQE_TRANGE_EN_METHOD (1 << 27) +#define SCALE_DCOMP_METHOD (1 << 26) +#define UNIQUE_TRANGE_EN_METHOD (1 << 27) #define _PORT_TX_DW4_LN0_A 0x162510 #define _PORT_TX_DW4_LN0_B 0x6C510 diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 205f61832d4a..0e46679fde5a 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -2165,9 +2165,13 @@ static void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level, I915_WRITE(BXT_PORT_TX_DW2_GRP(port), val); val = I915_READ(BXT_PORT_TX_DW3_LN0(port)); - val &= ~UNIQE_TRANGE_EN_METHOD; + val &= ~SCALE_DCOMP_METHOD; if (ddi_translations[level].enable) - val |= UNIQE_TRANGE_EN_METHOD; + val |= SCALE_DCOMP_METHOD; + + if ((val & UNIQUE_TRANGE_EN_METHOD) && !(val & SCALE_DCOMP_METHOD)) + DRM_ERROR("Disabled scaling while ouniqetrangenmethod was set"); + I915_WRITE(BXT_PORT_TX_DW3_GRP(port), val); val = I915_READ(BXT_PORT_TX_DW4_LN0(port)); |