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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>
This commit is contained in:
Janusz Krzysztofik 2010-02-15 10:03:32 -08:00 committed by Tony Lindgren
parent c127c7dc1a
commit 14f796375b
1 changed files with 22 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
arch/arm/plat-omap/mcbsp.c
View File

@ -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;
}