From 245f586876eefc55438f0d65856fbe15de8dadca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Mon, 30 Nov 2015 16:23:42 +0200
Subject: [PATCH] drm/i915: Fix VBT backlight Hz to PWM conversion for PNV
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Git-commit: 245f586876eefc55438f0d65856fbe15de8dadca
Patch-mainline: 4.5-rc1
References: bsc#1005545

Convert the MHz number coming from intel_rawclk() into Hz in
i9xx_hz_to_pwm() on PNV. Otherwise we'll get something totally
bogus as a result.

Fixes: aa17cdb4f836 ("drm/i915: initialize backlight max from VBT")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1448893432-6978-2-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/intel_panel.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1335,7 +1335,7 @@ static u32 i9xx_hz_to_pwm(struct intel_c
 	int clock;
 
 	if (IS_PINEVIEW(dev))
-		clock = intel_hrawclk(dev);
+		clock = MHz(intel_hrawclk(dev));
 	else
 		clock = 1000 * dev_priv->display.get_display_clock_speed(dev);
 
