Call pwm_apply_args() just after requesting the PWM device so that the
polarity and period are initialized according to the information provided
in pwm_args.

This is an intermediate state, and pwm_apply_args() should be dropped as
soon as the atomic PWM infrastructure is in place and the driver makes
use of it.

Signed-off-by: Boris Brezillon <boris.brezil...@free-electrons.com>
---
 drivers/gpu/drm/i915/intel_panel.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_panel.c 
b/drivers/gpu/drm/i915/intel_panel.c
index 21ee647..dc3a2e4 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1640,6 +1640,12 @@ static int pwm_setup_backlight(struct intel_connector 
*connector,
                return -ENODEV;
        }
 
+       /*
+        * FIXME: pwm_apply_args() should be removed when switching to
+        * the atomic PWM API.
+        */
+       pwm_apply_args(panel->backlight.pwm);
+
        retval = pwm_config(panel->backlight.pwm, CRC_PMIC_PWM_PERIOD_NS,
                            CRC_PMIC_PWM_PERIOD_NS);
        if (retval < 0) {
-- 
2.5.0

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