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ASoC: davinci-mcasp: Convert the context save/restore to use array 

Instead of individual values use an array to store the registers need to be
saved on suspend and restored on resume.
It is going to be easier to add more registers to save and restore.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2014-10-01 16:02:11 +03:00 committed by Mark Brown
parent 371e07ec83
commit 1cc0c054f3
1 changed files with 17 additions and 21 deletions
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38
sound/soc/davinci/davinci-mcasp.c
View File

@ -42,14 +42,18 @@
#define MCASP_MAX_AFIFO_DEPTH 64
static u32 context_regs[] = {
DAVINCI_MCASP_TXFMCTL_REG,
DAVINCI_MCASP_RXFMCTL_REG,
DAVINCI_MCASP_TXFMT_REG,
DAVINCI_MCASP_RXFMT_REG,
DAVINCI_MCASP_ACLKXCTL_REG,
DAVINCI_MCASP_ACLKRCTL_REG,
DAVINCI_MCASP_PDIR_REG,
};
struct davinci_mcasp_context {
u32 txfmtctl;
u32 rxfmtctl;
u32 txfmt;
u32 rxfmt;
u32 aclkxctl;
u32 aclkrctl;
u32 pdir;
u32 config_regs[ARRAY_SIZE(context_regs)];
};
struct davinci_mcasp {
@ -857,14 +861,10 @@ static int davinci_mcasp_suspend(struct snd_soc_dai *dai)
{
struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai);
struct davinci_mcasp_context *context = &mcasp->context;
int i;
context->txfmtctl = mcasp_get_reg(mcasp, DAVINCI_MCASP_TXFMCTL_REG);
context->rxfmtctl = mcasp_get_reg(mcasp, DAVINCI_MCASP_RXFMCTL_REG);
context->txfmt = mcasp_get_reg(mcasp, DAVINCI_MCASP_TXFMT_REG);
context->rxfmt = mcasp_get_reg(mcasp, DAVINCI_MCASP_RXFMT_REG);
context->aclkxctl = mcasp_get_reg(mcasp, DAVINCI_MCASP_ACLKXCTL_REG);
context->aclkrctl = mcasp_get_reg(mcasp, DAVINCI_MCASP_ACLKRCTL_REG);
context->pdir = mcasp_get_reg(mcasp, DAVINCI_MCASP_PDIR_REG);
for (i = 0; i < ARRAY_SIZE(context_regs); i++)
context->config_regs[i] = mcasp_get_reg(mcasp, context_regs[i]);
return 0;
}
@ -873,14 +873,10 @@ static int davinci_mcasp_resume(struct snd_soc_dai *dai)
{
struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai);
struct davinci_mcasp_context *context = &mcasp->context;
int i;
mcasp_set_reg(mcasp, DAVINCI_MCASP_TXFMCTL_REG, context->txfmtctl);
mcasp_set_reg(mcasp, DAVINCI_MCASP_RXFMCTL_REG, context->rxfmtctl);
mcasp_set_reg(mcasp, DAVINCI_MCASP_TXFMT_REG, context->txfmt);
mcasp_set_reg(mcasp, DAVINCI_MCASP_RXFMT_REG, context->rxfmt);
mcasp_set_reg(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, context->aclkxctl);
mcasp_set_reg(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, context->aclkrctl);
mcasp_set_reg(mcasp, DAVINCI_MCASP_PDIR_REG, context->pdir);
for (i = 0; i < ARRAY_SIZE(context_regs); i++)
mcasp_set_reg(mcasp, context_regs[i], context->config_regs[i]);
return 0;
}