From 403db2d21c8f8576d38211e5ec17d149c49e528b Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Tue, 28 Jun 2016 11:38:23 +0100 Subject: [PATCH] soc/tegra: pmc: Ensure powergate is available when powering on The function tegra_power_sequence_power_up() is a public function used to power on a partition. When this function is called, we do not check to see if the partition being powered up is valid/available. Fix this by checking to see that the partition is valid/available. Signed-off-by: Jon Hunter Signed-off-by: Thierry Reding --- drivers/soc/tegra/pmc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 8a421a0b1ece..52a9e9703668 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -549,6 +549,9 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk, struct tegra_powergate pg; int err; + if (!tegra_powergate_is_available(id)) + return -EINVAL; + pg.id = id; pg.clks = &clk; pg.num_clks = 1;