Tegra TRM documentation states that hardware should be in a default state when power partition is turned off, i.e. reset should be asserted. This patch adds the missing reset assertions.
Signed-off-by: Dmitry Osipenko digetx@gmail.com --- drivers/gpu/drm/tegra/gr3d.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c index c0a528be0369..b0b8154e8104 100644 --- a/drivers/gpu/drm/tegra/gr3d.c +++ b/drivers/gpu/drm/tegra/gr3d.c @@ -381,10 +381,12 @@ static int gr3d_remove(struct platform_device *pdev) }
if (gr3d->clk_secondary) { + reset_control_assert(gr3d->rst_secondary); tegra_powergate_power_off(TEGRA_POWERGATE_3D1); clk_disable_unprepare(gr3d->clk_secondary); }
+ reset_control_assert(gr3d->rst); tegra_powergate_power_off(TEGRA_POWERGATE_3D); clk_disable_unprepare(gr3d->clk);