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| author | Stephen Warren <swarren@nvidia.com> | 2013-03-25 13:22:24 -0600 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-04-04 16:09:05 -0600 |
| commit | 441f199a37cfd66c5dd8dd45490bd3ea6971117d (patch) | |
| tree | 0f7570e7985ea2b62f558e43d33caef6efa7e989 /drivers/clk/tegra/clk.h | |
| parent | 82ce742140f32394cc5be75f1c98cdbbff284582 (diff) | |
| download | blackbird-op-linux-441f199a37cfd66c5dd8dd45490bd3ea6971117d.tar.gz blackbird-op-linux-441f199a37cfd66c5dd8dd45490bd3ea6971117d.zip | |
clk: tegra: defer application of init table
The Tegra clock driver is initialized during the ARM machine descriptor's
.init_irq() hook. It can't be initialized earlier, since dynamic memory
usage is required. It can't be initialized later, since the .init_timer()
hook needs the clocks initialized. However, at this time, udelay()
doesn't work.
The Tegra clock initialization table may enable some PLLs. Enabling a PLL
may require usage of udelay(). Hence, this can't happen right when the
clock driver is initialized.
To solve this, separate the clock driver initialization from the clock
table processing, so they can execute at separate times.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra/clk.h')
| -rw-r--r-- | drivers/clk/tegra/clk.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h index a09d7dcaf183..3c566e2d518a 100644 --- a/drivers/clk/tegra/clk.h +++ b/drivers/clk/tegra/clk.h @@ -510,4 +510,7 @@ void tegra30_clock_init(struct device_node *np); static inline void tegra30_clock_init(struct device_node *np) {} #endif /* CONFIG_ARCH_TEGRA_3x_SOC */ +typedef void (*tegra_clk_apply_init_table_func)(void); +extern tegra_clk_apply_init_table_func tegra_clk_apply_init_table; + #endif /* TEGRA_CLK_H */ |
