From: Eduardo Valentin <eduardo.valentin@xxxxxxxxx> Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxxxxx> --- arch/arm/plat-omap/mcbsp.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index 84cc323..2383b08 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -359,7 +359,13 @@ void omap_mcbsp_start(unsigned int id) w = OMAP_MCBSP_READ(io_base, SPCR1); OMAP_MCBSP_WRITE(io_base, SPCR1, w | 1); - udelay(100); + /* + * Worst case: CLKSRG*2 = 8000khz: (1/8000) * 2 * 2 usec + * REVISIT: 100us may give enough time for two CLKSRG, however + * due to some unknown PM related, clock gating etc. reason it + * is now at 500us. + */ + udelay(500); /* Start frame sync */ w = OMAP_MCBSP_READ(io_base, SPCR2); -- 1.6.2.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
