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ASoC: fsl_ssi: Go back to explicit register defaults

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Commit 5c408fee25 ("ASoC: fsl_ssi: remove explicit register defaults")
causes the driver to fail to probe:

fsl-ssi-dai 2028000.ssi: No cache defaults, reading back from HW
fsl-ssi-dai 2028000.ssi: Failed to init register map
fsl-ssi-dai: probe of 2028000.ssi failed with error -22

, so revert this commit.

Reported-by: Mika Penttilä <mika.penttila@nextfour.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Fabio Estevam 2016-02-21 11:35:00 -03:00 committed by Mark Brown
parent 81f70ba233
commit 56e5fd8feb
1 changed files with 20 additions and 22 deletions
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42
sound/soc/fsl/fsl_ssi.c
View file

@ -112,6 +112,20 @@ struct fsl_ssi_rxtx_reg_val {
struct fsl_ssi_reg_val tx;
};
static const struct reg_default fsl_ssi_reg_defaults[] = {
{CCSR_SSI_SCR, 0x00000000},
{CCSR_SSI_SIER, 0x00003003},
{CCSR_SSI_STCR, 0x00000200},
{CCSR_SSI_SRCR, 0x00000200},
{CCSR_SSI_STCCR, 0x00040000},
{CCSR_SSI_SRCCR, 0x00040000},
{CCSR_SSI_SACNT, 0x00000000},
{CCSR_SSI_STMSK, 0x00000000},
{CCSR_SSI_SRMSK, 0x00000000},
{CCSR_SSI_SACCEN, 0x00000000},
{CCSR_SSI_SACCDIS, 0x00000000},
};
static bool fsl_ssi_readable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
@ -176,7 +190,8 @@ static const struct regmap_config fsl_ssi_regconfig = {
.val_bits = 32,
.reg_stride = 4,
.val_format_endian = REGMAP_ENDIAN_NATIVE,
.num_reg_defaults_raw = CCSR_SSI_SACCDIS / sizeof(uint32_t) + 1,
.reg_defaults = fsl_ssi_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(fsl_ssi_reg_defaults),
.readable_reg = fsl_ssi_readable_reg,
.volatile_reg = fsl_ssi_volatile_reg,
.precious_reg = fsl_ssi_precious_reg,
@ -186,7 +201,6 @@ static const struct regmap_config fsl_ssi_regconfig = {
struct fsl_ssi_soc_data {
bool imx;
bool imx21regs; /* imx21-class SSI - no SACC{ST,EN,DIS} regs */
bool offline_config;
u32 sisr_write_mask;
};
@ -289,7 +303,6 @@ static struct fsl_ssi_soc_data fsl_ssi_mpc8610 = {
static struct fsl_ssi_soc_data fsl_ssi_imx21 = {
.imx = true,
.imx21regs = true,
.offline_config = true,
.sisr_write_mask = 0,
};
@ -573,12 +586,8 @@ static void fsl_ssi_setup_ac97(struct fsl_ssi_private *ssi_private)
*/
regmap_write(regs, CCSR_SSI_SACNT,
CCSR_SSI_SACNT_AC97EN | CCSR_SSI_SACNT_FV);
/* no SACC{ST,EN,DIS} regs on imx21-class SSI */
if (!ssi_private->soc->imx21regs) {
regmap_write(regs, CCSR_SSI_SACCDIS, 0xff);
regmap_write(regs, CCSR_SSI_SACCEN, 0x300);
}
regmap_write(regs, CCSR_SSI_SACCDIS, 0xff);
regmap_write(regs, CCSR_SSI_SACCEN, 0x300);
/*
* Enable SSI, Transmit and Receive. AC97 has to communicate with the
@ -1388,7 +1397,6 @@ static int fsl_ssi_probe(struct platform_device *pdev)
struct resource *res;
void __iomem *iomem;
char name[64];
struct regmap_config regconfig = fsl_ssi_regconfig;
of_id = of_match_device(fsl_ssi_ids, &pdev->dev);
if (!of_id || !of_id->data)
@ -1436,25 +1444,15 @@ static int fsl_ssi_probe(struct platform_device *pdev)
return PTR_ERR(iomem);
ssi_private->ssi_phys = res->start;
if (ssi_private->soc->imx21regs) {
/*
* According to datasheet imx21-class SSI
* don't have SACC{ST,EN,DIS} regs.
*/
regconfig.max_register = CCSR_SSI_SRMSK;
regconfig.num_reg_defaults_raw =
CCSR_SSI_SRMSK / sizeof(uint32_t) + 1;
}
ret = of_property_match_string(np, "clock-names", "ipg");
if (ret < 0) {
ssi_private->has_ipg_clk_name = false;
ssi_private->regs = devm_regmap_init_mmio(&pdev->dev, iomem,
&regconfig);
&fsl_ssi_regconfig);
} else {
ssi_private->has_ipg_clk_name = true;
ssi_private->regs = devm_regmap_init_mmio_clk(&pdev->dev,
"ipg", iomem, &regconfig);
"ipg", iomem, &fsl_ssi_regconfig);
}
if (IS_ERR(ssi_private->regs)) {
dev_err(&pdev->dev, "Failed to init register map\n");