ASoC: fsl_ssi: remove explicit register defaults

[linux-2.6-block.git] / sound / soc / fsl / fsl_ssi.c

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 40dfd8a3648408a2cc76bb6e4c4c3872c8e28ac3..ed8de1035cda159d0d186f2cded0fb7a97fbceb4 100644 (file)
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -112,20 +112,6 @@ 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) {
@@ -190,8 +176,7 @@ static const struct regmap_config fsl_ssi_regconfig = {
        .val_bits = 32,
        .reg_stride = 4,
        .val_format_endian = REGMAP_ENDIAN_NATIVE,
-       .reg_defaults = fsl_ssi_reg_defaults,
-       .num_reg_defaults = ARRAY_SIZE(fsl_ssi_reg_defaults),
+       .num_reg_defaults_raw = CCSR_SSI_SACCDIS / sizeof(uint32_t) + 1,
        .readable_reg = fsl_ssi_readable_reg,
        .volatile_reg = fsl_ssi_volatile_reg,
        .precious_reg = fsl_ssi_precious_reg,
@@ -201,6 +186,7 @@ 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;
 };
@@ -303,6 +289,7 @@ 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,
 };
@@ -586,8 +573,12 @@ 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);
-       regmap_write(regs, CCSR_SSI_SACCDIS, 0xff);
-       regmap_write(regs, CCSR_SSI_SACCEN, 0x300);
+
+       /* 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);
+       }
 
        /*
         * Enable SSI, Transmit and Receive. AC97 has to communicate with the
@@ -1397,6 +1388,7 @@ 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)
@@ -1444,15 +1436,25 @@ 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,
-                       &fsl_ssi_regconfig);
+                       &regconfig);
        } else {
                ssi_private->has_ipg_clk_name = true;
                ssi_private->regs = devm_regmap_init_mmio_clk(&pdev->dev,
-                       "ipg", iomem, &fsl_ssi_regconfig);
+                       "ipg", iomem, &regconfig);
        }
        if (IS_ERR(ssi_private->regs)) {
                dev_err(&pdev->dev, "Failed to init register map\n");