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drm/tegra: gr3d: Assert reset before power-gating

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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>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2020-06-29 06:18:37 +03:00 committed by Thierry Reding
parent 5fba01a0d3
commit 2c2a291d01
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/tegra/gr3d.c
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@ -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);