ASoC: omap: mcbsp, mcpdm, dmic: raw read and write endian fix

All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/omap/mcbsp.c

@@ -36,10 +36,10 @@ static void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
 
 	if (mcbsp->pdata->reg_size == 2) {
 		((u16 *)mcbsp->reg_cache)[reg] = (u16)val;
-		__raw_writew((u16)val, addr);
+		writew_relaxed((u16)val, addr);
 	} else {
 		((u32 *)mcbsp->reg_cache)[reg] = val;
-		__raw_writel(val, addr);
+		writel_relaxed(val, addr);
 	}
 }
 
@@ -48,22 +48,22 @@ static int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache)
 	void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step;
 
 	if (mcbsp->pdata->reg_size == 2) {
-		return !from_cache ? __raw_readw(addr) :
+		return !from_cache ? readw_relaxed(addr) :
 				     ((u16 *)mcbsp->reg_cache)[reg];
 	} else {
-		return !from_cache ? __raw_readl(addr) :
+		return !from_cache ? readl_relaxed(addr) :
 				     ((u32 *)mcbsp->reg_cache)[reg];
 	}
 }
 
 static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
 {
-	__raw_writel(val, mcbsp->st_data->io_base_st + reg);
+	writel_relaxed(val, mcbsp->st_data->io_base_st + reg);
 }
 
 static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg)
 {
-	return __raw_readl(mcbsp->st_data->io_base_st + reg);
+	return readl_relaxed(mcbsp->st_data->io_base_st + reg);
 }
 
 #define MCBSP_READ(mcbsp, reg) \

sound/soc/omap/omap-dmic.c

@@ -61,12 +61,12 @@ struct omap_dmic {
 
 static inline void omap_dmic_write(struct omap_dmic *dmic, u16 reg, u32 val)
 {
-	__raw_writel(val, dmic->io_base + reg);
+	writel_relaxed(val, dmic->io_base + reg);
 }
 
 static inline int omap_dmic_read(struct omap_dmic *dmic, u16 reg)
 {
-	return __raw_readl(dmic->io_base + reg);
+	return readl_relaxed(dmic->io_base + reg);
 }
 
 static inline void omap_dmic_start(struct omap_dmic *dmic)

sound/soc/omap/omap-mcpdm.c

@@ -74,12 +74,12 @@ struct omap_mcpdm {
 
 static inline void omap_mcpdm_write(struct omap_mcpdm *mcpdm, u16 reg, u32 val)
 {
-	__raw_writel(val, mcpdm->io_base + reg);
+	writel_relaxed(val, mcpdm->io_base + reg);
 }
 
 static inline int omap_mcpdm_read(struct omap_mcpdm *mcpdm, u16 reg)
 {
-	return __raw_readl(mcpdm->io_base + reg);
+	return readl_relaxed(mcpdm->io_base + reg);
 }
 
 #ifdef DEBUG