diff options
author | Dmitry Osipenko <digetx@gmail.com> | 2020-12-28 18:49:16 +0300 |
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committer | Krzysztof Kozlowski <krzk@kernel.org> | 2021-01-05 20:00:09 +0300 |
commit | 281462e593483350d8072a118c6e072c550a80fa (patch) | |
tree | aedb622d4b8e73213c869eae85999fe03cced566 /drivers/clk/tegra/clk.h | |
parent | 5c8fe583cce542aa0b84adc939ce85293de36e5e (diff) | |
download | linux-281462e593483350d8072a118c6e072c550a80fa.tar.xz |
memory: tegra124-emc: Make driver modular
Add modularization support to the Tegra124 EMC driver, which now can be
compiled as a loadable kernel module.
Note that EMC clock must be registered at clk-init time, otherwise PLLM
will be disabled as unused clock at boot time if EMC driver is compiled
as a module. Hence add a prepare/complete callbacks. similarly to what is
done for the Tegra20/30 EMC drivers.
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201228154920.18846-2-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'drivers/clk/tegra/clk.h')
-rw-r--r-- | drivers/clk/tegra/clk.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h index 6b565f6b5f66..c3e36b5dcc75 100644 --- a/drivers/clk/tegra/clk.h +++ b/drivers/clk/tegra/clk.h @@ -881,16 +881,22 @@ void tegra_super_clk_gen5_init(void __iomem *clk_base, void __iomem *pmc_base, struct tegra_clk *tegra_clks, struct tegra_clk_pll_params *pll_params); -#ifdef CONFIG_TEGRA124_EMC -struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np, - spinlock_t *lock); +#ifdef CONFIG_TEGRA124_CLK_EMC +struct clk *tegra124_clk_register_emc(void __iomem *base, struct device_node *np, + spinlock_t *lock); +bool tegra124_clk_emc_driver_available(struct clk_hw *emc_hw); #else -static inline struct clk *tegra_clk_register_emc(void __iomem *base, - struct device_node *np, - spinlock_t *lock) +static inline struct clk * +tegra124_clk_register_emc(void __iomem *base, struct device_node *np, + spinlock_t *lock) { return NULL; } + +static inline bool tegra124_clk_emc_driver_available(struct clk_hw *emc_hw) +{ + return false; +} #endif void tegra114_clock_tune_cpu_trimmers_high(void); |