drivers: i915: Fix BLC PWM register setup
There is an error in i915_read_blc_pwm_ctl, where the register values are not being copied correctly. BLC_PWM_CTL and BLC_PWM_CTL2 are getting mixed up. This patch fixes that so that saveBLC_PWM_CTL2 and not saveBLC_PWM_CTL is copied to the BLC_PWM_CTL2 register. Signed-off-by: NSimon Que <sque@chromium.org> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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