Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c537376c authored by Thierry Reding's avatar Thierry Reding Committed by Stephen Warren
Browse files

ARM: tegra: Special-case the 3D clamps on Tegra124 



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: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
parent 9a716579

arch/arm/mach-tegra/powergate.c

+13 −0
Original line number Diff line number Diff line
@@ -41,6 +41,8 @@ 


#define PWRGATE_STATUS		0x38



#define GPU_RG_CNTRL		0x2d4



static int tegra_num_powerdomains;

static int tegra_num_cpu_domains;

static const u8 *tegra_cpu_domains;
@@ -136,6 +138,17 @@ int tegra_powergate_remove_clamping(int id) 
	if (id < 0 || id >= tegra_num_powerdomains)

		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