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>

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index c28508d..63e2444 100644 (file)
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -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;
 }