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memory: samsung: exynos5422-dmc: Document mutex scope

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Document scope of the mutex used by driver.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20200724180857.22119-1-krzk@kernel.org
This commit is contained in:
Krzysztof Kozlowski 2020-07-24 20:08:57 +02:00
parent 7f7d9e1e02
commit 911c94dac9
1 changed files with 1 additions and 0 deletions
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drivers/memory/samsung/exynos5422-dmc.c
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@ -119,6 +119,7 @@ struct exynos5_dmc {
void __iomem *base_drexi0;
void __iomem *base_drexi1;
struct regmap *clk_regmap;
/* Protects curr_rate and frequency/voltage setting section */
struct mutex lock;
unsigned long curr_rate;
unsigned long curr_volt;