omap: McBSP: Use macros for all register read/write operations

There are several places where readw()/writew() functions are used instead of
OMAP_MCBSP_READ()/WRITE() macros for manipulating McBSP registers. Replace
them with macros to ensure consistent behaviour after caching is introduced.

Tested on OMAP1510 based Amstrad Delta.
Compile-tested with omap_3430sdp_defconfig.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index c1eb61529394be2af0210e17ca9dda9bc657008c..eaaf53bb83953fa8eb4ecebf91d4a015e04aad49 100644 (file)
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -636,26 +636,26 @@ int omap_mcbsp_pollwrite(unsigned int id, u16 buf)
        mcbsp = id_to_mcbsp_ptr(id);
        base = mcbsp->io_base;
 
-       writew(buf, base + OMAP_MCBSP_REG_DXR1);
+       OMAP_MCBSP_WRITE(base, DXR1, buf);
        /* if frame sync error - clear the error */
-       if (readw(base + OMAP_MCBSP_REG_SPCR2) & XSYNC_ERR) {
+       if (OMAP_MCBSP_READ(base, SPCR2) & XSYNC_ERR) {
                /* clear error */
-               writew(readw(base + OMAP_MCBSP_REG_SPCR2) & (~XSYNC_ERR),
-                      base + OMAP_MCBSP_REG_SPCR2);
+               OMAP_MCBSP_WRITE(base, SPCR2,
+                               OMAP_MCBSP_READ(base, SPCR2) & (~XSYNC_ERR));
                /* resend */
                return -1;
        } else {
                /* wait for transmit confirmation */
                int attemps = 0;
-               while (!(readw(base + OMAP_MCBSP_REG_SPCR2) & XRDY)) {
+               while (!(OMAP_MCBSP_READ(base, SPCR2) & XRDY)) {
                        if (attemps++ > 1000) {
-                               writew(readw(base + OMAP_MCBSP_REG_SPCR2) &
-                                      (~XRST),
-                                      base + OMAP_MCBSP_REG_SPCR2);
+                               OMAP_MCBSP_WRITE(base, SPCR2,
+                                               OMAP_MCBSP_READ(base, SPCR2) &
+                                               (~XRST));
                                udelay(10);
-                               writew(readw(base + OMAP_MCBSP_REG_SPCR2) |
-                                      (XRST),
-                                      base + OMAP_MCBSP_REG_SPCR2);
+                               OMAP_MCBSP_WRITE(base, SPCR2,
+                                               OMAP_MCBSP_READ(base, SPCR2) |
+                                               (XRST));
                                udelay(10);
                                dev_err(mcbsp->dev, "Could not write to"
                                        " McBSP%d Register\n", mcbsp->id);
@@ -681,24 +681,24 @@ int omap_mcbsp_pollread(unsigned int id, u16 *buf)
 
        base = mcbsp->io_base;
        /* if frame sync error - clear the error */
-       if (readw(base + OMAP_MCBSP_REG_SPCR1) & RSYNC_ERR) {
+       if (OMAP_MCBSP_READ(base, SPCR1) & RSYNC_ERR) {
                /* clear error */
-               writew(readw(base + OMAP_MCBSP_REG_SPCR1) & (~RSYNC_ERR),
-                      base + OMAP_MCBSP_REG_SPCR1);
+               OMAP_MCBSP_WRITE(base, SPCR1,
+                               OMAP_MCBSP_READ(base, SPCR1) & (~RSYNC_ERR));
                /* resend */
                return -1;
        } else {
                /* wait for recieve confirmation */
                int attemps = 0;
-               while (!(readw(base + OMAP_MCBSP_REG_SPCR1) & RRDY)) {
+               while (!(OMAP_MCBSP_READ(base, SPCR1) & RRDY)) {
                        if (attemps++ > 1000) {
-                               writew(readw(base + OMAP_MCBSP_REG_SPCR1) &
-                                      (~RRST),
-                                      base + OMAP_MCBSP_REG_SPCR1);
+                               OMAP_MCBSP_WRITE(base, SPCR1,
+                                               OMAP_MCBSP_READ(base, SPCR1) &
+                                               (~RRST));
                                udelay(10);
-                               writew(readw(base + OMAP_MCBSP_REG_SPCR1) |
-                                      (RRST),
-                                      base + OMAP_MCBSP_REG_SPCR1);
+                               OMAP_MCBSP_WRITE(base, SPCR1,
+                                               OMAP_MCBSP_READ(base, SPCR1) |
+                                               (RRST));
                                udelay(10);
                                dev_err(mcbsp->dev, "Could not read from"
                                        " McBSP%d Register\n", mcbsp->id);
@@ -706,7 +706,7 @@ int omap_mcbsp_pollread(unsigned int id, u16 *buf)
                        }
                }
        }
-       *buf = readw(base + OMAP_MCBSP_REG_DRR1);
+       *buf = OMAP_MCBSP_READ(base, DRR1);
 
        return 0;
 }