From: Daniel Vetter Date: Sat, 20 Apr 2013 15:19:46 +0000 (+0200) Subject: drm/i915: shovel compute clock into crtc->config.dpll on ilk X-Git-Tag: next-20130521~50^2~103 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7429e9d4bfcfd08a00ed7b760386bd81a60e91d6;p=karo-tx-linux.git drm/i915: shovel compute clock into crtc->config.dpll on ilk This was somehow lost in the pipe_config->dpll introduction in commit f47709a9502f3715cc488b788ca91cf0c142b1b1 Author: Daniel Vetter Date: Thu Mar 28 10:42:02 2013 +0100 drm/i915: create pipe_config->dpll for clock state While at it, extract a few small helpers for common computations. v2: Use the newly added helpers more thanks to Ville's trick to typedef the legacy intel_clock_t as the new-world struct dpll. Cc: Ville Syrjälä Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8e8ac366e75e..f079fcd95dc2 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -549,13 +549,18 @@ static void pineview_clock(int refclk, intel_clock_t *clock) clock->dot = clock->vco / clock->p; } +static uint32_t i9xx_dpll_compute_m(struct dpll *dpll) +{ + return 5 * (dpll->m1 + 2) + (dpll->m2 + 2); +} + static void intel_clock(struct drm_device *dev, int refclk, intel_clock_t *clock) { if (IS_PINEVIEW(dev)) { pineview_clock(refclk, clock); return; } - clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2); + clock->m = i9xx_dpll_compute_m(clock); clock->p = clock->p1 * clock->p2; clock->vco = refclk * clock->m / (clock->n + 2); clock->dot = clock->vco / clock->p; @@ -4241,6 +4246,16 @@ static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc *crtc) crtc->config.clock_set = true; } +static uint32_t pnv_dpll_compute_fp(struct dpll *dpll) +{ + return (1 << dpll->n) << 16 | dpll->m1 << 8 | dpll->m2; +} + +static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll) +{ + return dpll->n << 16 | dpll->m1 << 8 | dpll->m2; +} + static void i9xx_update_pll_dividers(struct intel_crtc *crtc, intel_clock_t *reduced_clock) { @@ -4248,18 +4263,15 @@ static void i9xx_update_pll_dividers(struct intel_crtc *crtc, struct drm_i915_private *dev_priv = dev->dev_private; int pipe = crtc->pipe; u32 fp, fp2 = 0; - struct dpll *clock = &crtc->config.dpll; if (IS_PINEVIEW(dev)) { - fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2; + fp = pnv_dpll_compute_fp(&crtc->config.dpll); if (reduced_clock) - fp2 = (1 << reduced_clock->n) << 16 | - reduced_clock->m1 << 8 | reduced_clock->m2; + fp2 = pnv_dpll_compute_fp(reduced_clock); } else { - fp = clock->n << 16 | clock->m1 << 8 | clock->m2; + fp = i9xx_dpll_compute_fp(&crtc->config.dpll); if (reduced_clock) - fp2 = reduced_clock->n << 16 | reduced_clock->m1 << 8 | - reduced_clock->m2; + fp2 = i9xx_dpll_compute_fp(reduced_clock); } I915_WRITE(FP0(pipe), fp); @@ -5592,8 +5604,13 @@ static void ironlake_fdi_set_m_n(struct drm_crtc *crtc) intel_cpu_transcoder_set_m_n(intel_crtc, &m_n); } +static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor) +{ + return i9xx_dpll_compute_m(dpll) < factor * dpll->n; +} + static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, - intel_clock_t *clock, u32 *fp, + u32 *fp, intel_clock_t *reduced_clock, u32 *fp2) { struct drm_crtc *crtc = &intel_crtc->base; @@ -5633,7 +5650,7 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, } else if (is_sdvo && is_tv) factor = 20; - if (clock->m < factor * clock->n) + if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor)) *fp |= FP_CB_TUNE; if (fp2 && (reduced_clock->m < factor * reduced_clock->n)) @@ -5657,11 +5674,11 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, dpll |= DPLL_DVO_HIGH_SPEED; /* compute bitmask from p1 value */ - dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; + dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT; /* also FPA1 */ - dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; + dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT; - switch (clock->p2) { + switch (intel_crtc->config.dpll.p2) { case 5: dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5; break; @@ -5756,12 +5773,11 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, if (intel_crtc->config.has_pch_encoder) { struct intel_pch_pll *pll; - fp = clock.n << 16 | clock.m1 << 8 | clock.m2; + fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll); if (has_reduced_clock) - fp2 = reduced_clock.n << 16 | reduced_clock.m1 << 8 | - reduced_clock.m2; + fp2 = i9xx_dpll_compute_fp(&reduced_clock); - dpll = ironlake_compute_dpll(intel_crtc, &clock, + dpll = ironlake_compute_dpll(intel_crtc, &fp, &reduced_clock, has_reduced_clock ? &fp2 : NULL);