From 0220ab6e00785da008bb3736737b877d45858608 Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Tue, 29 Jul 2014 18:06:22 +0100 Subject: [PATCH] drm/i915: Split the BDW/HSW specific shared pll selection We'll need a different algorithm to select the shared DPLL. Signed-off-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ddi.c | 39 +++++++++++++++++++------------- 1 file changed, 23 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 3b6375d3e422..09599851f1a8 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -708,23 +708,10 @@ intel_ddi_calculate_wrpll(int clock /* in Hz */, *r2_out = best.r2; } -/* - * Tries to find a *shared* PLL for the CRTC and store it in - * intel_crtc->ddi_pll_sel. - * - * For private DPLLs, compute_config() should do the selection for us. This - * function should be folded into compute_config() eventually. - */ -bool intel_ddi_pll_select(struct intel_crtc *intel_crtc) +static bool +hsw_ddi_pll_select(struct intel_crtc *intel_crtc, int output, int clock) { - struct drm_crtc *crtc = &intel_crtc->base; - struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); - int type = intel_encoder->type; - int clock = intel_crtc->config.port_clock; - - intel_put_shared_dpll(intel_crtc); - - if (type == INTEL_OUTPUT_HDMI) { + if (output == INTEL_OUTPUT_HDMI) { struct intel_shared_dpll *pll; uint32_t val; unsigned p, n2, r2; @@ -750,6 +737,26 @@ bool intel_ddi_pll_select(struct intel_crtc *intel_crtc) return true; } + +/* + * Tries to find a *shared* PLL for the CRTC and store it in + * intel_crtc->ddi_pll_sel. + * + * For private DPLLs, compute_config() should do the selection for us. This + * function should be folded into compute_config() eventually. + */ +bool intel_ddi_pll_select(struct intel_crtc *intel_crtc) +{ + struct drm_crtc *crtc = &intel_crtc->base; + struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); + int type = intel_encoder->type; + int clock = intel_crtc->config.port_clock; + + intel_put_shared_dpll(intel_crtc); + + return hsw_ddi_pll_select(intel_crtc, type, clock); +} + void intel_ddi_set_pipe_settings(struct drm_crtc *crtc) { struct drm_i915_private *dev_priv = crtc->dev->dev_private; -- 2.20.1