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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-22 13:54:41 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-24 09:48:45 +0200 |
| commit | 2637ce30e145557bf89ebcf35b2d78e729e16e5a (patch) | |
| tree | b670a00b7d6047b7225c988d8787e358d82a9ead /arch/arm/mach-omap2/sleep34xx.S | |
| parent | ARM: pm: omap34xx: no need to save all registers in sleep34xx.S (diff) | |
| download | linux-2637ce30e145557bf89ebcf35b2d78e729e16e5a.tar.xz linux-2637ce30e145557bf89ebcf35b2d78e729e16e5a.zip | |
ARM: pm: omap34xx: remove misleading comment and use of r9
The code alludes to r9 being used to indicate what was lost over the
suspend/resume transition. However, although r9 is set, it is never
actually used.
Also, the comments before the code (which refer to the value of r9)
and the comments against the assignment of r9 contradict each other,
so just remove them to avoid confusion.
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap2/sleep34xx.S')
| -rw-r--r-- | arch/arm/mach-omap2/sleep34xx.S | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S index 9551c7dc71ef..12e9da2f0263 100644 --- a/arch/arm/mach-omap2/sleep34xx.S +++ b/arch/arm/mach-omap2/sleep34xx.S @@ -381,18 +381,13 @@ restore_3630: restore: /* - * Check what was the reason for mpu reset and store the reason in r9: - * 0 - No context lost - * 1 - Only L1 and logic lost - * 2 - Only L2 lost - In this case, we wont be here - * 3 - Both L1 and L2 lost + * Read the pwstctrl register to check the reason for mpu reset. + * This tells us what was lost. */ ldr r1, pm_pwstctrl_mpu ldr r2, [r1] and r2, r2, #0x3 cmp r2, #0x0 @ Check if target power state was OFF or RET - moveq r9, #0x3 @ MPU OFF => L1 and L2 lost - movne r9, #0x1 @ Only L1 and L2 lost => avoid L2 invalidation bne logic_l1_restore ldr r0, l2dis_3630 |