samsung-sm8650/android_kernel_samsung_sm8650-modules
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asoc: common: add support for tdm slots configuration

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add support for the tdm slots configuration from dt.

Change-Id: I9fc9f81c4793c1b9eefe326af2db5259f35a2a4f
Signed-off-by: Prasad Kumpatla <pkumpatl@codeaurora.org>
This commit is contained in:
Prasad Kumpatla
2021-07-26 20:15:06 +05:30
parent a40c1bebd9
commit 6b93e2c23b
2 changed files with 18 additions and 3 deletions
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20
asoc/msm_common.c
View File

@@ -45,7 +45,7 @@ struct snd_card_pdata {
#define MAX_CODEC_DAI 8 #define MAX_CODEC_DAI 8
#define TDM_SLOT_WIDTH_BITS 32 #define TDM_SLOT_WIDTH_BITS 32
#define TDM_MAX_SLOTS 4 #define TDM_MAX_SLOTS 8
static struct attribute device_state_attr = { static struct attribute device_state_attr = {
.name = "state", .name = "state",
@@ -280,7 +280,7 @@ int msm_common_snd_hw_params(struct snd_pcm_substream *substream,
{ {
int ret = 0; int ret = 0;
int slot_width = TDM_SLOT_WIDTH_BITS; int slot_width = TDM_SLOT_WIDTH_BITS;
int slots = TDM_MAX_SLOTS; int slots;
unsigned int rate; unsigned int rate;
struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_pcm_runtime *rtd = substream->private_data;
const char *stream_name = rtd->dai_link->stream_name; const char *stream_name = rtd->dai_link->stream_name;
@@ -293,6 +293,7 @@ int msm_common_snd_hw_params(struct snd_pcm_substream *substream,
mutex_lock(&pdata->lock[index]); mutex_lock(&pdata->lock[index]);
if (pdata->mi2s_gpio_p[index]) { if (pdata->mi2s_gpio_p[index]) {
if ((strnstr(stream_name, "TDM", strlen(stream_name)))) { if ((strnstr(stream_name, "TDM", strlen(stream_name)))) {
slots = pdata->tdm_max_slots;
rate = params_rate(params); rate = params_rate(params);
tdm_clk_cfg.clk_id = get_intf_clk_id(index); tdm_clk_cfg.clk_id = get_intf_clk_id(index);
@@ -409,7 +410,7 @@ void msm_common_snd_shutdown(struct snd_pcm_substream *substream)
int msm_common_snd_init(struct platform_device *pdev, struct snd_soc_card *card) int msm_common_snd_init(struct platform_device *pdev, struct snd_soc_card *card)
{ {
struct msm_common_pdata *common_pdata = NULL; struct msm_common_pdata *common_pdata = NULL;
int count; int count, ret = 0;
common_pdata = kcalloc(1, sizeof(struct msm_common_pdata), GFP_KERNEL); common_pdata = kcalloc(1, sizeof(struct msm_common_pdata), GFP_KERNEL);
if (!common_pdata) if (!common_pdata)
@@ -420,6 +421,19 @@ int msm_common_snd_init(struct platform_device *pdev, struct snd_soc_card *card)
atomic_set(&common_pdata->mi2s_gpio_ref_cnt[count], 0); atomic_set(&common_pdata->mi2s_gpio_ref_cnt[count], 0);
} }
ret = of_property_read_u32(pdev->dev.of_node, "qcom,tdm-max-slots",
&common_pdata->tdm_max_slots);
if (ret) {
dev_info(&pdev->dev, "%s: No DT match for tdm max slots\n",
__func__);
}
if ((common_pdata->tdm_max_slots <= 0) || (common_pdata->tdm_max_slots >
TDM_MAX_SLOTS)) {
common_pdata->tdm_max_slots = TDM_MAX_SLOTS;
dev_info(&pdev->dev, "%s: Using default tdm max slot: %d\n",
__func__, common_pdata->tdm_max_slots);
}
common_pdata->mi2s_gpio_p[PRI_MI2S_TDM_AUXPCM] = of_parse_phandle(pdev->dev.of_node, common_pdata->mi2s_gpio_p[PRI_MI2S_TDM_AUXPCM] = of_parse_phandle(pdev->dev.of_node,
"qcom,pri-mi2s-gpios", 0); "qcom,pri-mi2s-gpios", 0);
common_pdata->mi2s_gpio_p[SEC_MI2S_TDM_AUXPCM] = of_parse_phandle(pdev->dev.of_node, common_pdata->mi2s_gpio_p[SEC_MI2S_TDM_AUXPCM] = of_parse_phandle(pdev->dev.of_node,

1
asoc/msm_common.h
View File

@@ -38,6 +38,7 @@ struct msm_common_pdata {
uint32_t num_aud_devs; uint32_t num_aud_devs;
struct device_node *mi2s_gpio_p[MI2S_TDM_AUXPCM_MAX]; struct device_node *mi2s_gpio_p[MI2S_TDM_AUXPCM_MAX];
struct mutex lock[MI2S_TDM_AUXPCM_MAX]; struct mutex lock[MI2S_TDM_AUXPCM_MAX];
u32 tdm_max_slots; /* Max TDM slots used */
atomic_t mi2s_gpio_ref_cnt[MI2S_TDM_AUXPCM_MAX]; atomic_t mi2s_gpio_ref_cnt[MI2S_TDM_AUXPCM_MAX];
}; };