From: Jon Hunter Date: Fri, 28 Sep 2012 21:09:03 +0000 (-0500) Subject: ARM: OMAP: Don't restore of DMTIMER TISTAT register X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d3004bb43de180c2f6e965716a3abe9b43c8b861;p=linux-beck.git ARM: OMAP: Don't restore of DMTIMER TISTAT register The timer TISTAT register is a read-only register and therefore restoring the context is not needed. Furthermore, the context of TISTAT is never saved anywhere in the current code. The TISTAT register is read-only for all OMAP devices from OMAP1 to OMAP4. OMAP5 timers no longer have this register. Signed-off-by: Jon Hunter Acked-by: Santosh Shilimkar --- diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index d4f95410539f..320d10381715 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -83,9 +83,6 @@ static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg, static void omap_timer_restore_context(struct omap_dm_timer *timer) { - if (timer->revision == 1) - __raw_writel(timer->context.tistat, timer->sys_stat); - __raw_writel(timer->context.tisr, timer->irq_stat); omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, timer->context.twer); diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index ac16f1e9d0e0..2f9fd1d27aef 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -84,7 +84,6 @@ struct omap_dm_timer; struct timer_regs { u32 tidr; - u32 tistat; u32 tisr; u32 tier; u32 twer;