On Mon, 30 Nov 2015, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> 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@xxxxxxxxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_panel.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
> index a24df35e11e7..ea528ca854e8 100644
> --- 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_connector *connector, u32 pwm_freq_hz)
> 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);
--
Jani Nikula, Intel Open Source Technology Center
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