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OMAP: McBSP: Change wakeup signals 

Configure only XRDYEN and RRDYEN wakeup signals
in order to get better power consumption.

Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
hifive-unleashed-5.1
Eduardo Valentin 2009-08-20 16:18:16 +03:00 committed by Mark Brown
parent 2122fdc629
commit d9a9b3f5f7
2 changed files with 2 additions and 8 deletions
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3
arch/arm/plat-omap/include/mach/mcbsp.h
View File

@ -273,9 +273,6 @@
#define REOFEN 0x0004
#define RFSREN 0x0002
#define RSYNCERREN 0x0001
#define WAKEUPEN_ALL (XEMPTYEOFEN | XRDYEN | XEOFEN | XFSXEN | \
XSYNCERREN | RRDYEN | REOFEN | RFSREN | \
RSYNCERREN)
/* we don't do multichannel for now */
struct omap_mcbsp_reg_cfg {

7
arch/arm/plat-omap/mcbsp.c
View File

@ -320,7 +320,7 @@ static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp)
syscon |= (ENAWAKEUP | SIDLEMODE(0x02));
OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, WAKEUPEN_ALL);
OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, XRDYEN | RRDYEN);
}
}
@ -331,15 +331,12 @@ static inline void omap34xx_mcbsp_free(struct omap_mcbsp *mcbsp)
*/
if (cpu_is_omap34xx()) {
u16 syscon;
u16 wakeupen;
syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON);
syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03));
OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
wakeupen = OMAP_MCBSP_READ(mcbsp->io_base, WAKEUPEN);
wakeupen &= ~WAKEUPEN_ALL;
OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, wakeupen);
OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, 0);
}
}
#else