diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-09-13 16:18:46 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-09-16 22:42:00 +0200 |
| commit | 293623f7aa6d175d126135fb58c7a88c9695fd11 (patch) | |
| tree | 4699418443a03106a54775e771d2741568d1ef55 /drivers | |
| parent | 6878da05006feb68efe23a6ae010b1a5df32ca5f (diff) | |
drm/i915: Make i9xx_crtc_clock_get() use dpll_hw_state
We already extract the DPLL state to pipe_config, so let's make use of
it in i9xx_crtc_clock_get() and avoid the register reads.
This will also make the function closer to being useable with PCH DPLL
since the registers for those live in a different address.
Also kill the useless adjusted_mode.clock zeroing. It's already zero at
this point.
v2: Read out DPLL state in intel_crtc_mode_get()
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 94ef15c87b8..38f2b306a10 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7348,14 +7348,14 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc, struct drm_device *dev = crtc->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; int pipe = pipe_config->cpu_transcoder; - u32 dpll = I915_READ(DPLL(pipe)); + u32 dpll = pipe_config->dpll_hw_state.dpll; u32 fp; intel_clock_t clock; if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) - fp = I915_READ(FP0(pipe)); + fp = pipe_config->dpll_hw_state.fp0; else - fp = I915_READ(FP1(pipe)); + fp = pipe_config->dpll_hw_state.fp1; clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; if (IS_PINEVIEW(dev)) { @@ -7386,7 +7386,6 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc, default: DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed " "mode\n", (int)(dpll & DPLL_MODE_MASK)); - pipe_config->adjusted_mode.clock = 0; return; } @@ -7486,6 +7485,7 @@ struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, int hsync = I915_READ(HSYNC(cpu_transcoder)); int vtot = I915_READ(VTOTAL(cpu_transcoder)); int vsync = I915_READ(VSYNC(cpu_transcoder)); + enum pipe pipe = intel_crtc->pipe; mode = kzalloc(sizeof(*mode), GFP_KERNEL); if (!mode) @@ -7498,8 +7498,11 @@ struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need * to use a real value here instead. */ - pipe_config.cpu_transcoder = (enum transcoder) intel_crtc->pipe; + pipe_config.cpu_transcoder = (enum transcoder) pipe; pipe_config.pixel_multiplier = 1; + pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe)); + pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe)); + pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe)); i9xx_crtc_clock_get(intel_crtc, &pipe_config); mode->clock = pipe_config.adjusted_mode.clock; |