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authorDmitry Osipenko <digetx@gmail.com>2021-07-17 14:27:42 +0300
committerStephen Boyd <sboyd@kernel.org>2021-07-27 14:54:19 -0700
commit2bcc025ab9bbd029b1730cde71cb4e4f0ed35d0f (patch)
tree9414c6c46cb8909fc05afcc2a8004b88e899e5fc /drivers/clk/tegra
parent4ee107c514139960682cc0f3623a24e86fda1a13 (diff)
clk: tegra: Implement disable_unused() of tegra_clk_sdmmc_mux_ops
Implement disable_unused() callback of tegra_clk_sdmmc_mux_ops to fix imbalanced disabling of the unused MMC clock on Tegra210 Jetson Nano. Fixes: c592c8a28f58 ("clk: tegra: Fix refcounting of gate clocks") Reported-by: Jon Hunter <jonathanh@nvidia.com> # T210 Nano Tested-by: Jon Hunter <jonathanh@nvidia.com> # T210 Nano Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20210717112742.7196-1-digetx@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/tegra')
-rw-r--r--drivers/clk/tegra/clk-sdmmc-mux.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk-sdmmc-mux.c b/drivers/clk/tegra/clk-sdmmc-mux.c
index 316912d3b1a4..4f2c3309eea4 100644
--- a/drivers/clk/tegra/clk-sdmmc-mux.c
+++ b/drivers/clk/tegra/clk-sdmmc-mux.c
@@ -194,6 +194,15 @@ static void clk_sdmmc_mux_disable(struct clk_hw *hw)
gate_ops->disable(gate_hw);
}
+static void clk_sdmmc_mux_disable_unused(struct clk_hw *hw)
+{
+ struct tegra_sdmmc_mux *sdmmc_mux = to_clk_sdmmc_mux(hw);
+ const struct clk_ops *gate_ops = sdmmc_mux->gate_ops;
+ struct clk_hw *gate_hw = &sdmmc_mux->gate.hw;
+
+ gate_ops->disable_unused(gate_hw);
+}
+
static void clk_sdmmc_mux_restore_context(struct clk_hw *hw)
{
struct clk_hw *parent = clk_hw_get_parent(hw);
@@ -218,6 +227,7 @@ static const struct clk_ops tegra_clk_sdmmc_mux_ops = {
.is_enabled = clk_sdmmc_mux_is_enabled,
.enable = clk_sdmmc_mux_enable,
.disable = clk_sdmmc_mux_disable,
+ .disable_unused = clk_sdmmc_mux_disable_unused,
.restore_context = clk_sdmmc_mux_restore_context,
};