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Commit d3004bb4 authored by Jon Hunter's avatar Jon Hunter
Browse files

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: default avatarJon Hunter <jon-hunter@ti.com>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
parent ffc957bd

arch/arm/plat-omap/dmtimer.c

+0 −3
Original line number Diff line number Diff line
@@ -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);

arch/arm/plat-omap/include/plat/dmtimer.h

+0 −1
Original line number Diff line number Diff line
@@ -84,7 +84,6 @@ struct omap_dm_timer; 


struct timer_regs {

	u32 tidr;

	u32 tistat;

	u32 tisr;

	u32 tier;

	u32 twer;