ASoC: ux500_pcm: Use the same snd_pcm_hardware for playback and capture

The snd_pcm_hardware structs for playback and capture in the ux500 PCM are
identical, so remove one of them and use the same snd_pcm_hardware struct for
both playback and capture. Also move the defines used to initialize the
snd_pcm_hardware fields from ux500_pcm.h to ux500_pcm.c since that's the only
place where they are used.

Also drop the assignment of the snd_pcm_hardware struct to runtime->hw since
that is what the call to snd_soc_set_runtime_hwparams() right above it already
does, so the second assignment is redundant.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 15 insertions, 36 deletions

diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c
index 1ab36fa845cd..09b5364e5095 100644
--- a/sound/soc/ux500/ux500_pcm.c
+++ b/sound/soc/ux500/ux500_pcm.c
@@ -28,28 +28,19 @@
 #include "ux500_msp_i2s.h"
 #include "ux500_pcm.h"
 
-static struct snd_pcm_hardware ux500_pcm_hw_playback = {
-        .info = SNDRV_PCM_INFO_INTERLEAVED |
-                SNDRV_PCM_INFO_MMAP |
-                SNDRV_PCM_INFO_RESUME |
-                SNDRV_PCM_INFO_PAUSE,
-        .formats = SNDRV_PCM_FMTBIT_S16_LE |
-                SNDRV_PCM_FMTBIT_U16_LE |
-                SNDRV_PCM_FMTBIT_S16_BE |
-                SNDRV_PCM_FMTBIT_U16_BE,
-        .rates = SNDRV_PCM_RATE_KNOT,
-        .rate_min = UX500_PLATFORM_MIN_RATE_PLAYBACK,
-        .rate_max = UX500_PLATFORM_MAX_RATE_PLAYBACK,
-        .channels_min = UX500_PLATFORM_MIN_CHANNELS,
-        .channels_max = UX500_PLATFORM_MAX_CHANNELS,
-        .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
-        .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN,
-        .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX,
-        .periods_min = UX500_PLATFORM_PERIODS_MIN,
-        .periods_max = UX500_PLATFORM_PERIODS_MAX,
-};
+#define UX500_PLATFORM_MIN_RATE 8000
+#define UX500_PLATFORM_MAX_RATE 48000
+
+#define UX500_PLATFORM_MIN_CHANNELS 1
+#define UX500_PLATFORM_MAX_CHANNELS 8
+
+#define UX500_PLATFORM_PERIODS_BYTES_MIN        128
+#define UX500_PLATFORM_PERIODS_BYTES_MAX        (64 * PAGE_SIZE)
+#define UX500_PLATFORM_PERIODS_MIN              2
+#define UX500_PLATFORM_PERIODS_MAX              48
+#define UX500_PLATFORM_BUFFER_BYTES_MAX         (2048 * PAGE_SIZE)
 
-static struct snd_pcm_hardware ux500_pcm_hw_capture = {
+static struct snd_pcm_hardware ux500_pcm_hw = {
         .info = SNDRV_PCM_INFO_INTERLEAVED |
                 SNDRV_PCM_INFO_MMAP |
                 SNDRV_PCM_INFO_RESUME |
@@ -59,8 +50,8 @@ static struct snd_pcm_hardware ux500_pcm_hw_capture = {
                 SNDRV_PCM_FMTBIT_S16_BE |
                 SNDRV_PCM_FMTBIT_U16_BE,
         .rates = SNDRV_PCM_RATE_KNOT,
-        .rate_min = UX500_PLATFORM_MIN_RATE_CAPTURE,
-        .rate_max = UX500_PLATFORM_MAX_RATE_CAPTURE,
+        .rate_min = UX500_PLATFORM_MIN_RATE,
+        .rate_max = UX500_PLATFORM_MAX_RATE,
         .channels_min = UX500_PLATFORM_MIN_CHANNELS,
         .channels_max = UX500_PLATFORM_MAX_CHANNELS,
         .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
@@ -90,8 +81,6 @@ static void ux500_pcm_dma_hw_free(struct device *dev,
 
 static int ux500_pcm_open(struct snd_pcm_substream *substream)
 {
-        int stream_id = substream->pstr->stream;
-        struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *dai = rtd->cpu_dai;
         struct device *dev = dai->dev;
@@ -104,17 +93,7 @@ static int ux500_pcm_open(struct snd_pcm_substream *substream)
                 snd_pcm_stream_str(substream));
 
         dev_dbg(dev, "%s: Set runtime hwparams.\n", __func__);
-        if (stream_id == SNDRV_PCM_STREAM_PLAYBACK)
-                snd_soc_set_runtime_hwparams(substream,
-                                        &ux500_pcm_hw_playback);
-        else
-                snd_soc_set_runtime_hwparams(substream,
-                                        &ux500_pcm_hw_capture);
-
-        dev_dbg(dev, "%s: Set hw-struct for %s.\n", __func__,
-                snd_pcm_stream_str(substream));
-        runtime->hw = (stream_id == SNDRV_PCM_STREAM_PLAYBACK) ?
-                ux500_pcm_hw_playback : ux500_pcm_hw_capture;
+        snd_soc_set_runtime_hwparams(substream, &ux500_pcm_hw);
 
         mem_data_width = STEDMA40_HALFWORD_WIDTH;