For HDMI, channel mapping can be retrieved from ELD. In this case mapping can change during runtime (plug/unplug). This patch removes the 'const' property of the struct chmap.
Signed-off-by: Arnaud Pouliquen arnaud.pouliquen@st.com --- include/sound/pcm.h | 4 ++-- sound/core/pcm_lib.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index af1fb37..3b459a3 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -1355,7 +1355,7 @@ struct snd_pcm_chmap { struct snd_pcm *pcm; /* assigned PCM instance */ int stream; /* PLAYBACK or CAPTURE */ struct snd_kcontrol *kctl; - const struct snd_pcm_chmap_elem *chmap; + struct snd_pcm_chmap_elem *chmap; unsigned int max_channels; unsigned int channel_mask; /* optional: active channels bitmask */ void *private_data; /* optional: private data pointer */ @@ -1387,7 +1387,7 @@ struct snd_pcm_chmap { #define SND_PCM_CHMAP_MASK_2468 (SND_PCM_CHMAP_MASK_246 | (1U << 8))
int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream, - const struct snd_pcm_chmap_elem *chmap, + struct snd_pcm_chmap_elem *chmap, int max_channels, unsigned long private_value, struct snd_pcm_chmap **info_ret); diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index bb12615..252a498 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -2489,7 +2489,7 @@ static int pcm_chmap_ctl_get(struct snd_kcontrol *kcontrol, struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); struct snd_pcm_substream *substream; - const struct snd_pcm_chmap_elem *map; + struct snd_pcm_chmap_elem *map;
if (snd_BUG_ON(!info->chmap)) return -EINVAL; @@ -2519,7 +2519,7 @@ static int pcm_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag, unsigned int size, unsigned int __user *tlv) { struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); - const struct snd_pcm_chmap_elem *map; + struct snd_pcm_chmap_elem *map; unsigned int __user *dst; int c, count = 0;
@@ -2578,7 +2578,7 @@ static void pcm_chmap_ctl_private_free(struct snd_kcontrol *kcontrol) * Return: Zero if successful, or a negative error value. */ int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream, - const struct snd_pcm_chmap_elem *chmap, + struct snd_pcm_chmap_elem *chmap, int max_channels, unsigned long private_value, struct snd_pcm_chmap **info_ret)