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authorTomasz Duszynski <tduszyns@gmail.com>2020-02-16 13:17:16 +0100
committerJagan Teki <jagan@amarulasolutions.com>2020-03-18 15:37:08 +0530
commit3586cb82277e8af9eae38b354bb8b2aee38ee377 (patch)
tree44ad14f38595fe7528584ac4fa5c31fa9934a5c1 /arch/arm
parenta4df9d8ab848ea4ff10b247ae435b0a14bbbd066 (diff)
Revert "sunxi: psci: avoid error address-of-packed-member"
Using memcpy() for some MMIO access is generally frowned upon and might break things on some platforms. Allwinner H3, which fails to boot, being an example here. Moreover, fields being accessed are naturally aligned and warnings produced by GCC have been quiesced for some time already by: 53dc8ae ("gcc-9: silence 'address-of-packed-member' warning") That said, it should be okay to revert this commit. This reverts commit 9bd34a69a453d409792e08c00953ce8862145e65. Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv7/sunxi/psci.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/psci.c b/arch/arm/cpu/armv7/sunxi/psci.c
index 5b689004e8..2c5d99e9ac 100644
--- a/arch/arm/cpu/armv7/sunxi/psci.c
+++ b/arch/arm/cpu/armv7/sunxi/psci.c
@@ -75,7 +75,7 @@ static void __secure __mdelay(u32 ms)
isb();
}
-static void __secure clamp_release(void __maybe_unused *clamp)
+static void __secure clamp_release(u32 __maybe_unused *clamp)
{
#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || \
defined(CONFIG_MACH_SUN8I_H3) || \
@@ -90,7 +90,7 @@ static void __secure clamp_release(void __maybe_unused *clamp)
#endif
}
-static void __secure clamp_set(void __maybe_unused *clamp)
+static void __secure clamp_set(u32 __maybe_unused *clamp)
{
#if defined(CONFIG_MACH_SUN6I) || defined(CONFIG_MACH_SUN7I) || \
defined(CONFIG_MACH_SUN8I_H3) || \
@@ -99,28 +99,22 @@ static void __secure clamp_set(void __maybe_unused *clamp)
#endif
}
-static void __secure sunxi_power_switch(void *clamp, void *pwroff_ptr, bool on,
+static void __secure sunxi_power_switch(u32 *clamp, u32 *pwroff, bool on,
int cpu)
{
- u32 pwroff;
-
- memcpy(&pwroff, pwroff_ptr, sizeof(u32));
-
if (on) {
/* Release power clamp */
clamp_release(clamp);
/* Clear power gating */
- clrbits_le32(&pwroff, BIT(cpu));
+ clrbits_le32(pwroff, BIT(cpu));
} else {
/* Set power gating */
- setbits_le32(&pwroff, BIT(cpu));
+ setbits_le32(pwroff, BIT(cpu));
/* Activate power clamp */
clamp_set(clamp);
}
-
- memcpy(pwroff_ptr, &pwroff, sizeof(u32));
}
#ifdef CONFIG_MACH_SUN8I_R40