[PATCH] drm/i915: fix compiler warnings in intel_audio.c

[Geliang Tang]

Fix the following warnings:

  CC      drivers/gpu/drm/i915/intel_audio.o
drivers/gpu/drm/i915/intel_audio.c: In function âhsw_audio_codec_enableâ:
drivers/gpu/drm/i915/intel_audio.c:332:39: warning: passing argument 2 of âaudio_rate_need_progâ discards âconstâ qualifier from pointer target type [-Wdiscarded-qualifiers]
  if (audio_rate_need_prog(intel_crtc, adjusted_mode)) {
                                       ^
drivers/gpu/drm/i915/intel_audio.c:147:13: note: expected âstruct drm_display_mode *â but argument is of type âconst struct drm_display_mode *â
 static bool audio_rate_need_prog(struct intel_crtc *crtc,
             ^

Signed-off-by: Geliang Tang <geliangtang@xxxxxxx>
---
 drivers/gpu/drm/i915/intel_audio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index baadd90..72d696b 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -145,7 +145,7 @@ static uint32_t audio_config_setup_n_reg(int n, uint32_t val)
 
 /* check whether N/CTS/M need be set manually */
 static bool audio_rate_need_prog(struct intel_crtc *crtc,
-					struct drm_display_mode *mode)
+				 const struct drm_display_mode *mode)
 {
 	if (((mode->clock == TMDS_297M) ||
 		 (mode->clock == TMDS_296M)) &&
-- 
2.5.0


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