From: Daniel Vetter Date: Fri, 19 Apr 2013 09:14:37 +0000 (+0200) Subject: drm/i915: simplify config->pixel_multiplier handling X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=198a037f02666eeaab5ba07974fa37467b1f6bd8;p=linux-beck.git drm/i915: simplify config->pixel_multiplier handling We only ever check whether it's strictly bigger than one, so all the is_sdvo/is_hdmi checks are redundant. Flatten the code a bit. Also, s/temp/dpll_md/ 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 a9013fda1c3a..2e83dbe5ecc0 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4235,7 +4235,7 @@ static void vlv_update_pll(struct intel_crtc *crtc) u32 dpll, mdiv; u32 bestn, bestm1, bestm2, bestp1, bestp2; bool is_hdmi; - u32 coreclk, reg_val, temp; + u32 coreclk, reg_val, dpll_md; mutex_lock(&dev_priv->dpio_lock); @@ -4333,16 +4333,13 @@ static void vlv_update_pll(struct intel_crtc *crtc) if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1)) DRM_ERROR("DPLL %d failed to lock\n", pipe); - if (is_hdmi) { - temp = 0; - if (crtc->config.pixel_multiplier > 1) { - temp = (crtc->config.pixel_multiplier - 1) - << DPLL_MD_UDI_MULTIPLIER_SHIFT; - } - - I915_WRITE(DPLL_MD(pipe), temp); - POSTING_READ(DPLL_MD(pipe)); + dpll_md = 0; + if (crtc->config.pixel_multiplier > 1) { + dpll_md = (crtc->config.pixel_multiplier - 1) + << DPLL_MD_UDI_MULTIPLIER_SHIFT; } + I915_WRITE(DPLL_MD(pipe), dpll_md); + POSTING_READ(DPLL_MD(pipe)); if (crtc->config.has_dp_encoder) intel_dp_set_m_n(crtc); @@ -4374,14 +4371,15 @@ static void i9xx_update_pll(struct intel_crtc *crtc, else dpll |= DPLLB_MODE_DAC_SERIAL; - if (is_sdvo) { - if ((crtc->config.pixel_multiplier > 1) && - (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) { - dpll |= (crtc->config.pixel_multiplier - 1) - << SDVO_MULTIPLIER_SHIFT_HIRES; - } - dpll |= DPLL_DVO_HIGH_SPEED; + if ((crtc->config.pixel_multiplier > 1) && + (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))) { + dpll |= (crtc->config.pixel_multiplier - 1) + << SDVO_MULTIPLIER_SHIFT_HIRES; } + + if (is_sdvo) + dpll |= DPLL_DVO_HIGH_SPEED; + if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) dpll |= DPLL_DVO_HIGH_SPEED; @@ -4441,15 +4439,12 @@ static void i9xx_update_pll(struct intel_crtc *crtc, udelay(150); if (INTEL_INFO(dev)->gen >= 4) { - u32 temp = 0; - if (is_sdvo) { - temp = 0; - if (crtc->config.pixel_multiplier > 1) { - temp = (crtc->config.pixel_multiplier - 1) - << DPLL_MD_UDI_MULTIPLIER_SHIFT; - } + u32 dpll_md = 0; + if (crtc->config.pixel_multiplier > 1) { + dpll_md = (crtc->config.pixel_multiplier - 1) + << DPLL_MD_UDI_MULTIPLIER_SHIFT; } - I915_WRITE(DPLL_MD(pipe), temp); + I915_WRITE(DPLL_MD(pipe), dpll_md); } else { /* The pixel multiplier can only be updated once the * DPLL is enabled and the clocks are stable. @@ -5562,13 +5557,14 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc, dpll |= DPLLB_MODE_LVDS; else dpll |= DPLLB_MODE_DAC_SERIAL; - if (is_sdvo) { - if (intel_crtc->config.pixel_multiplier > 1) { - dpll |= (intel_crtc->config.pixel_multiplier - 1) - << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; - } - dpll |= DPLL_DVO_HIGH_SPEED; + + if (intel_crtc->config.pixel_multiplier > 1) { + dpll |= (intel_crtc->config.pixel_multiplier - 1) + << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; } + + if (is_sdvo) + dpll |= DPLL_DVO_HIGH_SPEED; if (intel_crtc->config.has_dp_encoder) dpll |= DPLL_DVO_HIGH_SPEED;