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Commit 4e7f8cfb authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1448893432-6978-7-git-send-email-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent fce18c4c

drivers/gpu/drm/i915/intel_panel.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

}