A separate register is used to remove the clamps for the GPU on Tegra124. In order to be able to use the same API, special-case this particular partition.
Signed-off-by: Thierry Reding <[email protected]> --- arch/arm/mach-tegra/powergate.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c index dd0d52b329de..3d0c537d9b94 100644 --- a/arch/arm/mach-tegra/powergate.c +++ b/arch/arm/mach-tegra/powergate.c @@ -56,6 +56,8 @@ #define IO_DPD2_STATUS 0x1c4 #define SEL_DPD_TIM 0x1c8 +#define GPU_RG_CNTRL 0x2d4 + static int tegra_num_powerdomains; static int tegra_num_cpu_domains; static const u8 *tegra_cpu_domains; @@ -152,6 +154,17 @@ int tegra_powergate_remove_clamping(int id) return -EINVAL; /* + * The Tegra124 GPU has a separate register (with different semantics) + * to remove clamps. + */ + if (tegra_chip_id == TEGRA124) { + if (id == TEGRA_POWERGATE_3D) { + pmc_write(0, GPU_RG_CNTRL); + return 0; + } + } + + /* * Tegra 2 has a bug where PCIE and VDE clamping masks are * swapped relatively to the partition ids */ -- 1.8.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
