ARM: tegra: powergate: Don't error out if new state == old state
Don't treat it as an error if a partition is already in the same power
state when a user wants to power it on or off. This allows code to
proceed if no state change is required.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index c472bed3..af9067e 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -76,7 +76,7 @@
if (status == new_state) {
spin_unlock_irqrestore(&tegra_powergate_lock, flags);
- return -EINVAL;
+ return 0;
}
pmc_write(PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);