From: Mikko Perttunen Date: Fri, 9 Jun 2017 12:25:39 +0000 (+0300) Subject: drm/nouveau/tegra: Skip manual unpowergating when not necessary X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b1df242544b9477dd529b468c13066b66a3f9e97;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/nouveau/tegra: Skip manual unpowergating when not necessary On Tegra186, powergating is handled by the BPMP power domain provider and the "legacy" powergating API is not available. Therefore skip these calls if we are attached to a power domain. Signed-off-by: Mikko Perttunen Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index 6474bd2a6d07..3d42cdbbe9c0 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -51,10 +51,12 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) reset_control_assert(tdev->rst); udelay(10); - ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); - if (ret) - goto err_clamp; - udelay(10); + if (!tdev->pdev->dev.pm_domain) { + ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); + if (ret) + goto err_clamp; + udelay(10); + } reset_control_deassert(tdev->rst); udelay(10);