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ASoC: fsl_esai: introduce SoC specific data 

Introduce a SoC specific data structure which contains the
differences between the different SoCs.
This makes it easier to support more differences without having
to introduce a new if/else each time.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/c188279975bd216995904f9bf8a84c7887b759a0.1589537601.git.shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2020-05-15 18:10:50 +08:00 committed by Mark Brown
parent 5ae5eb48ca
commit 6878e75204
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 37 additions and 9 deletions
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46
sound/soc/fsl/fsl_esai.c
View File

@ -21,6 +21,17 @@
SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE)
/**
* fsl_esai_soc_data: soc specific data
*
* @imx: for imx platform
* @reset_at_xrun: flags for enable reset operaton
*/
struct fsl_esai_soc_data {
bool imx;
bool reset_at_xrun;
};
/**
* fsl_esai: ESAI private data
*
@ -33,6 +44,7 @@
* @fsysclk: system clock source to derive HCK, SCK and FS
* @spbaclk: SPBA clock (optional, depending on SoC design)
* @task: tasklet to handle the reset operation
* @soc: soc specific data
* @lock: spin lock between hw_reset() and trigger()
* @fifo_depth: depth of tx/rx FIFO
* @slot_width: width of each DAI slot
@ -44,7 +56,6 @@
* @sck_div: if using PSR/PM dividers for SCKx clock
* @slave_mode: if fully using DAI slave mode
* @synchronous: if using tx/rx synchronous mode
* @reset_at_xrun: flags for enable reset operaton
* @name: driver name
*/
struct fsl_esai {
@ -57,6 +68,7 @@ struct fsl_esai {
struct clk *fsysclk;
struct clk *spbaclk;
struct tasklet_struct task;
const struct fsl_esai_soc_data *soc;
spinlock_t lock; /* Protect hw_reset and trigger */
u32 fifo_depth;
u32 slot_width;
@ -70,10 +82,24 @@ struct fsl_esai {
bool sck_div[2];
bool slave_mode;
bool synchronous;
bool reset_at_xrun;
char name[32];
};
static struct fsl_esai_soc_data fsl_esai_vf610 = {
.imx = false,
.reset_at_xrun = true,
};
static struct fsl_esai_soc_data fsl_esai_imx35 = {
.imx = true,
.reset_at_xrun = true,
};
static struct fsl_esai_soc_data fsl_esai_imx6ull = {
.imx = true,
.reset_at_xrun = false,
};
static irqreturn_t esai_isr(int irq, void *devid)
{
struct fsl_esai *esai_priv = (struct fsl_esai *)devid;
@ -85,7 +111,7 @@ static irqreturn_t esai_isr(int irq, void *devid)
regmap_read(esai_priv->regmap, REG_ESAI_SAISR, &saisr);
if ((saisr & (ESAI_SAISR_TUE | ESAI_SAISR_ROE)) &&
esai_priv->reset_at_xrun) {
esai_priv->soc->reset_at_xrun) {
dev_dbg(&pdev->dev, "reset module for xrun\n");
regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
ESAI_xCR_xEIE_MASK, 0);
@ -936,9 +962,11 @@ static int fsl_esai_probe(struct platform_device *pdev)
esai_priv->pdev = pdev;
snprintf(esai_priv->name, sizeof(esai_priv->name), "%pOFn", np);
if (of_device_is_compatible(np, "fsl,vf610-esai") ||
of_device_is_compatible(np, "fsl,imx35-esai"))
esai_priv->reset_at_xrun = true;
esai_priv->soc = of_device_get_match_data(&pdev->dev);
if (!esai_priv->soc) {
dev_err(&pdev->dev, "failed to get soc data\n");
return -ENODEV;
}
/* Get the addresses and IRQ */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@ -1063,9 +1091,9 @@ static int fsl_esai_remove(struct platform_device *pdev)
}
static const struct of_device_id fsl_esai_dt_ids[] = {
{ .compatible = "fsl,imx35-esai", },
{ .compatible = "fsl,vf610-esai", },
{ .compatible = "fsl,imx6ull-esai", },
{ .compatible = "fsl,imx35-esai", .data = &fsl_esai_imx35 },
{ .compatible = "fsl,vf610-esai", .data = &fsl_esai_vf610 },
{ .compatible = "fsl,imx6ull-esai", .data = &fsl_esai_imx6ull },
{}
};
MODULE_DEVICE_TABLE(of, fsl_esai_dt_ids);