[PATCH 4/5] drm/i915/audio: be explicit about intel_wakeref_t conversions

[Jani Nikula]

Use explicit casts to convert between intel_wakeref_t and unsigned long,
to not rely on intel_wakeref_t underlying type remaining unsigned long,
allowing us to change it as needed. (And yes, this is indeed preparation
for changing the typedef for intel_wakeref_t.)

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/intel_audio.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index f5e7eefab2f1..32aa9ec1a204 100644
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -982,12 +982,12 @@ static unsigned long i915_audio_component_get_power(struct device *kdev)
 {
 	struct intel_display *display = to_intel_display(kdev);
 	struct drm_i915_private *i915 = to_i915(display->drm);
-	intel_wakeref_t ret;
+	intel_wakeref_t wakeref;
 
 	/* Catch potential impedance mismatches before they occur! */
 	BUILD_BUG_ON(sizeof(intel_wakeref_t) > sizeof(unsigned long));
 
-	ret = intel_display_power_get(i915, POWER_DOMAIN_AUDIO_PLAYBACK);
+	wakeref = intel_display_power_get(i915, POWER_DOMAIN_AUDIO_PLAYBACK);
 
 	if (i915->display.audio.power_refcount++ == 0) {
 		if (DISPLAY_VER(i915) >= 9) {
@@ -1007,7 +1007,7 @@ static unsigned long i915_audio_component_get_power(struct device *kdev)
 				     0, AUD_PIN_BUF_ENABLE);
 	}
 
-	return ret;
+	return (unsigned long)wakeref;
 }
 
 static void i915_audio_component_put_power(struct device *kdev,
@@ -1015,13 +1015,14 @@ static void i915_audio_component_put_power(struct device *kdev,
 {
 	struct intel_display *display = to_intel_display(kdev);
 	struct drm_i915_private *i915 = to_i915(display->drm);
+	intel_wakeref_t wakeref = (intel_wakeref_t)cookie;
 
 	/* Stop forcing CDCLK to 2*BCLK if no need for audio to be powered. */
 	if (--i915->display.audio.power_refcount == 0)
 		if (IS_GEMINILAKE(i915))
 			glk_force_audio_cdclk(i915, false);
 
-	intel_display_power_put(i915, POWER_DOMAIN_AUDIO_PLAYBACK, cookie);
+	intel_display_power_put(i915, POWER_DOMAIN_AUDIO_PLAYBACK, wakeref);
 }
 
 static void i915_audio_component_codec_wake_override(struct device *kdev,
-- 
2.39.2