Le 13/01/2016 07:35, Songjun Wu a écrit :
> Cpu_dai id always equals 0, can't distinguish the
> different SSC. Use platform_device id to record
> and distinguish the different SSC.
>
> Signed-off-by: Songjun Wu <songjun.wu@xxxxxxxxx>
It seems okay:
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
> ---
>
> drivers/misc/atmel-ssc.c | 1 +
> sound/soc/atmel/atmel_ssc_dai.c | 27 ++++++++++++++++++---------
> 2 files changed, 19 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
> index e11a0bd..0516ecd 100644
> --- a/drivers/misc/atmel-ssc.c
> +++ b/drivers/misc/atmel-ssc.c
> @@ -34,6 +34,7 @@ struct ssc_device *ssc_request(unsigned int ssc_num)
> if (ssc->pdev->dev.of_node) {
> if (of_alias_get_id(ssc->pdev->dev.of_node, "ssc")
> == ssc_num) {
> + ssc->pdev->id = ssc_num;
> ssc_valid = 1;
> break;
> }
> diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
> index ba8def5..2768970 100644
> --- a/sound/soc/atmel/atmel_ssc_dai.c
> +++ b/sound/soc/atmel/atmel_ssc_dai.c
> @@ -285,7 +285,8 @@ static int atmel_ssc_hw_rule_rate(struct snd_pcm_hw_params *params,
> static int atmel_ssc_startup(struct snd_pcm_substream *substream,
> struct snd_soc_dai *dai)
> {
> - struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
> + struct platform_device *pdev = to_platform_device(dai->dev);
> + struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
> struct atmel_pcm_dma_params *dma_params;
> int dir, dir_mask;
> int ret;
> @@ -346,7 +347,8 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
> static void atmel_ssc_shutdown(struct snd_pcm_substream *substream,
> struct snd_soc_dai *dai)
> {
> - struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
> + struct platform_device *pdev = to_platform_device(dai->dev);
> + struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
> struct atmel_pcm_dma_params *dma_params;
> int dir, dir_mask;
>
> @@ -392,7 +394,8 @@ static void atmel_ssc_shutdown(struct snd_pcm_substream *substream,
> static int atmel_ssc_set_dai_fmt(struct snd_soc_dai *cpu_dai,
> unsigned int fmt)
> {
> - struct atmel_ssc_info *ssc_p = &ssc_info[cpu_dai->id];
> + struct platform_device *pdev = to_platform_device(cpu_dai->dev);
> + struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
>
> ssc_p->daifmt = fmt;
> return 0;
> @@ -404,7 +407,8 @@ static int atmel_ssc_set_dai_fmt(struct snd_soc_dai *cpu_dai,
> static int atmel_ssc_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
> int div_id, int div)
> {
> - struct atmel_ssc_info *ssc_p = &ssc_info[cpu_dai->id];
> + struct platform_device *pdev = to_platform_device(cpu_dai->dev);
> + struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
>
> switch (div_id) {
> case ATMEL_SSC_CMR_DIV:
> @@ -445,7 +449,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
> struct snd_pcm_hw_params *params,
> struct snd_soc_dai *dai)
> {
> - int id = dai->id;
> + struct platform_device *pdev = to_platform_device(dai->dev);
> + int id = pdev->id;
> struct atmel_ssc_info *ssc_p = &ssc_info[id];
> struct ssc_device *ssc = ssc_p->ssc;
> struct atmel_pcm_dma_params *dma_params;
> @@ -772,7 +777,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
> static int atmel_ssc_prepare(struct snd_pcm_substream *substream,
> struct snd_soc_dai *dai)
> {
> - struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
> + struct platform_device *pdev = to_platform_device(dai->dev);
> + struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
> struct atmel_pcm_dma_params *dma_params;
> int dir;
>
> @@ -795,7 +801,8 @@ static int atmel_ssc_prepare(struct snd_pcm_substream *substream,
> static int atmel_ssc_trigger(struct snd_pcm_substream *substream,
> int cmd, struct snd_soc_dai *dai)
> {
> - struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
> + struct platform_device *pdev = to_platform_device(dai->dev);
> + struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
> struct atmel_pcm_dma_params *dma_params;
> int dir;
>
> @@ -824,11 +831,12 @@ static int atmel_ssc_trigger(struct snd_pcm_substream *substream,
> static int atmel_ssc_suspend(struct snd_soc_dai *cpu_dai)
> {
> struct atmel_ssc_info *ssc_p;
> + struct platform_device *pdev = to_platform_device(cpu_dai->dev);
>
> if (!cpu_dai->active)
> return 0;
>
> - ssc_p = &ssc_info[cpu_dai->id];
> + ssc_p = &ssc_info[pdev->id];
>
> /* Save the status register before disabling transmit and receive */
> ssc_p->ssc_state.ssc_sr = ssc_readl(ssc_p->ssc->regs, SR);
> @@ -852,12 +860,13 @@ static int atmel_ssc_suspend(struct snd_soc_dai *cpu_dai)
> static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai)
> {
> struct atmel_ssc_info *ssc_p;
> + struct platform_device *pdev = to_platform_device(cpu_dai->dev);
> u32 cr;
>
> if (!cpu_dai->active)
> return 0;
>
> - ssc_p = &ssc_info[cpu_dai->id];
> + ssc_p = &ssc_info[pdev->id];
>
> /* restore SSC register settings */
> ssc_writel(ssc_p->ssc->regs, TFMR, ssc_p->ssc_state.ssc_tfmr);
>
--
Nicolas Ferre
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