USBTLL Save-and-Restore is broken in 3630 ES1.0. Having it enabled could result in incorrect register restores as the OMAP exits off-mode. This could potentially result in unexpected wakeup events.
This is fixed in ES1.1. So disable it for ES1.0s. Signed-off-by: Anand Gadiyar <gadi...@ti.com> Cc: Paul Walmsley <p...@pwsan.com> --- This is a fix for buggy hardware, and it would be nice to see this in the next merge window too. Depends on the patch I just posted which adds the CHIP_GE_OMAP3630ES1_1 macro <https://patchwork.kernel.org/patch/111147/> arch/arm/mach-omap2/powerdomains34xx.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) Index: linux-omap-2.6/arch/arm/mach-omap2/powerdomains34xx.h =================================================================== --- linux-omap-2.6.orig/arch/arm/mach-omap2/powerdomains34xx.h +++ linux-omap-2.6/arch/arm/mach-omap2/powerdomains34xx.h @@ -80,7 +80,8 @@ static struct powerdomain core_3xxx_pre_ .prcm_offs = CORE_MOD, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1 | CHIP_IS_OMAP3430ES2 | - CHIP_IS_OMAP3430ES3_0), + CHIP_IS_OMAP3430ES3_0 | + CHIP_IS_OMAP3630ES1), .pwrsts = PWRSTS_OFF_RET_ON, .pwrsts_logic_ret = PWRSTS_OFF_RET, .banks = 2, @@ -97,7 +98,8 @@ static struct powerdomain core_3xxx_pre_ static struct powerdomain core_3xxx_es3_1_pwrdm = { .name = "core_pwrdm", .prcm_offs = CORE_MOD, - .omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES3_1), + .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES3_1 | + CHIP_GE_OMAP3630ES1_1), .pwrsts = PWRSTS_OFF_RET_ON, .pwrsts_logic_ret = PWRSTS_OFF_RET, .flags = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */ -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
