diff options
| author |   Thierry Reding <treding@nvidia.com> | 2015-01-09 11:15:33 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2015-01-09 16:14:53 +0100 |
| commit | a9a40a4a58bac4ff92d0c7e5aa82043074533a6a (patch) | |
| tree | 59a3babf68a3c30fd1d74ccd7989782179aaa6f8 /drivers/soc | |
| parent | soc/tegra: fuse: Add Tegra132 support (diff) | |
| download | linux-dev-a9a40a4a58bac4ff92d0c7e5aa82043074533a6a.tar.xz linux-dev-a9a40a4a58bac4ff92d0c7e5aa82043074533a6a.zip | |
soc/tegra: pmc: Add Tegra132 support
Tegra132 uses the same GPU as Tegra124 and therefore requires the same
method to remove clamps. However Tegra132 has a separate chip ID, so in
order to avoid having to extend the list of chip IDs for the special
case, add a feature flag to the SoC data.
Reviewed-by: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 4bdc654bd747..0f096e76574a 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -88,6 +88,8 @@ struct tegra_pmc_soc { const char *const *powergates; unsigned int num_cpu_powergates; const u8 *cpu_powergates; + + bool has_gpu_clamps; }; /** @@ -225,11 +227,11 @@ int tegra_powergate_remove_clamping(int id) return -EINVAL; /* - * The Tegra124 GPU has a separate register (with different semantics) - * to remove clamps. + * On Tegra124 and later, the clamps for the GPU are controlled by a + * separate register (with different semantics). */ - if (tegra_get_chip_id() == TEGRA124) { - if (id == TEGRA_POWERGATE_3D) { + if (id == TEGRA_POWERGATE_3D) { + if (pmc->soc->has_gpu_clamps) { tegra_pmc_writel(0, GPU_RG_CNTRL); return 0; } @@ -773,6 +775,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .powergates = tegra20_powergates, .num_cpu_powergates = 0, .cpu_powergates = NULL, + .has_gpu_clamps = false, }; static const char * const tegra30_powergates[] = { @@ -804,6 +807,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .powergates = tegra30_powergates, .num_cpu_powergates = ARRAY_SIZE(tegra30_cpu_powergates), .cpu_powergates = tegra30_cpu_powergates, + .has_gpu_clamps = false, }; static const char * const tegra114_powergates[] = { @@ -839,6 +843,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .powergates = tegra114_powergates, .num_cpu_powergates = ARRAY_SIZE(tegra114_cpu_powergates), .cpu_powergates = tegra114_cpu_powergates, + .has_gpu_clamps = false, }; static const char * const tegra124_powergates[] = { @@ -880,6 +885,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = { .powergates = tegra124_powergates, .num_cpu_powergates = ARRAY_SIZE(tegra124_cpu_powergates), .cpu_powergates = tegra124_cpu_powergates, + .has_gpu_clamps = true, }; static const struct of_device_id tegra_pmc_match[] = { |