Tegra 2 has a bug where PCIE and VDE clamping masks are swapped
relatively to the partition ids. Update tegra_powergate_remove_clamping
function to workaround this bug
Signed-off-by: Mike Rapoport <mike@xxxxxxxxxxxxxx>
---
arch/arm/mach-tegra/powergate.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index 9b27bf7..9fbe727 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -102,10 +102,23 @@ bool tegra_powergate_is_powered(int id)
int tegra_powergate_remove_clamping(int id)
{
+ u32 mask;
+
if (id < 0 || id >= TEGRA_NUM_POWERGATE)
return -EINVAL;
- pmc_write(1 << id, REMOVE_CLAMPING);
+ /*
+ * Tegra 2 has a bug where PCIE and VDE clamping masks are
+ * swapped relatively to the partition ids
+ */
+ if (id == TEGRA_POWERGATE_VDEC)
+ mask = (1 << TEGRA_POWERGATE_PCIE);
+ else if (id == TEGRA_POWERGATE_PCIE)
+ mask = (1 << TEGRA_POWERGATE_VDEC);
+ else
+ mask = (1 << id);
+
+ pmc_write(mask, REMOVE_CLAMPING);
return 0;
}
--
1.6.6.2
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