Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

[pandora-kernel.git] / arch / arm / plat-omap / mcbsp.c

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 0c8612f..eac4b97 100644 (file)
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -33,7 +33,7 @@
 struct omap_mcbsp **mcbsp_ptr;
 int omap_mcbsp_count, omap_mcbsp_cache_size;
 
-void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
+static void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
 {
        if (cpu_class_is_omap1()) {
                ((u16 *)mcbsp->reg_cache)[reg / sizeof(u16)] = (u16)val;
@@ -47,7 +47,7 @@ void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
        }
 }
 
-int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache)
+static int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache)
 {
        if (cpu_class_is_omap1()) {
                return !from_cache ? __raw_readw(mcbsp->io_base + reg) :
@@ -62,12 +62,12 @@ int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache)
 }
 
 #ifdef CONFIG_ARCH_OMAP3
-void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
+static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
 {
        __raw_writel(val, mcbsp->st_data->io_base_st + reg);
 }
 
-int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg)
+static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg)
 {
        return __raw_readl(mcbsp->st_data->io_base_st + reg);
 }
@@ -80,9 +80,6 @@ int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg)
 #define MCBSP_READ_CACHE(mcbsp, reg) \
                omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 1)
 
-#define omap_mcbsp_check_valid_id(id)  (id < omap_mcbsp_count)
-#define id_to_mcbsp_ptr(id)            mcbsp_ptr[id];
-
 #define MCBSP_ST_READ(mcbsp, reg) \
                        omap_mcbsp_st_read(mcbsp, OMAP_ST_REG_##reg)
 #define MCBSP_ST_WRITE(mcbsp, reg, val) \
@@ -878,7 +875,7 @@ EXPORT_SYMBOL(omap_mcbsp_free);
 void omap_mcbsp_start(unsigned int id, int tx, int rx)
 {
        struct omap_mcbsp *mcbsp;
-       int idle;
+       int enable_srg = 0;
        u16 w;
 
        if (!omap_mcbsp_check_valid_id(id)) {
@@ -893,10 +890,13 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)
        mcbsp->rx_word_length = (MCBSP_READ_CACHE(mcbsp, RCR1) >> 5) & 0x7;
        mcbsp->tx_word_length = (MCBSP_READ_CACHE(mcbsp, XCR1) >> 5) & 0x7;
 
-       idle = !((MCBSP_READ_CACHE(mcbsp, SPCR2) |
-                       MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1);
+       /* Only enable SRG, if McBSP is master */
+       w = MCBSP_READ_CACHE(mcbsp, PCR0);
+       if (w & (FSXM | FSRM | CLKXM | CLKRM))
+               enable_srg = !((MCBSP_READ_CACHE(mcbsp, SPCR2) |
+                               MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1);
 
-       if (idle) {
+       if (enable_srg) {
                /* Start the sample generator */
                w = MCBSP_READ_CACHE(mcbsp, SPCR2);
                MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 6));
@@ -919,7 +919,7 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)
         */
        udelay(500);
 
-       if (idle) {
+       if (enable_srg) {
                /* Start frame sync */
                w = MCBSP_READ_CACHE(mcbsp, SPCR2);
                MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 7));
@@ -1645,7 +1645,7 @@ static const struct attribute_group sidetone_attr_group = {
        .attrs = (struct attribute **)sidetone_attrs,
 };
 
-int __devinit omap_st_add(struct omap_mcbsp *mcbsp)
+static int __devinit omap_st_add(struct omap_mcbsp *mcbsp)
 {
        struct omap_mcbsp_platform_data *pdata = mcbsp->pdata;
        struct omap_mcbsp_st_data *st_data;