Hi Kukjin,
Today's linux-next merge of the s5p tree got a conflict in
arch/arm/mach-exynos4/pm.c between commits e7089da9567f ("ARM: pm:
samsung: move cpu_suspend into C code") and 29cb3cd208dd ("ARM: pm: allow
suspend finisher to return error codes") from the arm tree and commit
f8ab7d1a953b ("ARM: EXYNOS4: Add save/restore for other ARM registers")
from the s5p tree.
I fixed it up (see below) and can carry the fix as necessary.
BTW, Russell, commit 29cb3cd208dd above changed the return type of
exynos4_cpu_suspend() from void to int but did not add any return
statement ...
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc arch/arm/mach-exynos4/pm.c
index 533c28f,45f7fd3..0000000
--- a/arch/arm/mach-exynos4/pm.c
+++ b/arch/arm/mach-exynos4/pm.c
@@@ -280,37 -216,11 +216,11 @@@ static struct sleep_save exynos4_l2cc_s
SAVE_ITEM(S5P_VA_L2CC + L2X0_AUX_CTRL),
};
+ /* For Cortex-A9 Diagnostic and Power control register */
+ static unsigned int save_arm_register[2];
+
-void exynos4_cpu_suspend(unsigned long arg)
+static int exynos4_cpu_suspend(unsigned long arg)
{
- unsigned long tmp;
- unsigned long mask = 0xFFFFFFFF;
-
- /* Setting Central Sequence Register for power down mode */
-
- tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
- tmp &= ~(S5P_CENTRAL_LOWPWR_CFG);
- __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
-
- /* Setting Central Sequence option Register */
-
- tmp = __raw_readl(S5P_CENTRAL_SEQ_OPTION);
- tmp &= ~(S5P_USE_MASK);
- tmp |= S5P_USE_STANDBY_WFI0;
- __raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
-
- /* Clear all interrupt pending to avoid early wakeup */
-
- __raw_writel(mask, (S5P_VA_GIC_DIST + 0x280));
- __raw_writel(mask, (S5P_VA_GIC_DIST + 0x284));
- __raw_writel(mask, (S5P_VA_GIC_DIST + 0x288));
-
- /* Disable all interrupt */
-
- __raw_writel(0x0, (S5P_VA_GIC_CPU + 0x000));
- __raw_writel(0x0, (S5P_VA_GIC_DIST + 0x000));
- __raw_writel(mask, (S5P_VA_GIC_DIST + 0x184));
- __raw_writel(mask, (S5P_VA_GIC_DIST + 0x188));
-
outer_flush_all();
/* issue the standby signal into the pm unit. */
--
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