From: Ville Syrjälä Date: Mon, 30 Nov 2015 14:23:47 +0000 (+0200) Subject: drm/i915: Use cached cdclk_freq for PWM calculations X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4e7f8cfbd22755844094caaac2d9f49d2b77fd8c;p=linux-beck.git drm/i915: Use cached cdclk_freq for PWM calculations No need to read out cdclk from the hardware, we have it already cached in dev_priv. Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1448893432-6978-7-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index eb42b388a5e9..ae808b68a44f 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1345,7 +1345,7 @@ static u32 i9xx_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz) if (IS_PINEVIEW(dev)) clock = MHz(intel_hrawclk(dev)); else - clock = 1000 * dev_priv->display.get_display_clock_speed(dev); + clock = 1000 * dev_priv->cdclk_freq; return clock / (pwm_freq_hz * 32); } @@ -1364,7 +1364,7 @@ static u32 i965_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz) if (IS_G4X(dev_priv)) clock = MHz(intel_hrawclk(dev)); else - clock = 1000 * dev_priv->display.get_display_clock_speed(dev); + clock = 1000 * dev_priv->cdclk_freq; return clock / (pwm_freq_hz * 128); }