diff options
| author | Rajendra Nayak <rnayak@ti.com> | 2014-04-23 11:41:03 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-05-16 17:52:35 +0200 |
| commit | 345477ffe2ed0c53ffbbfeae73f9bca38e827d0d (patch) | |
| tree | a404efafcbf41970ed60d323590458d865dafa99 /drivers/gpio | |
| parent | 09ffa131c773a041ecbc9ca4a8033493d69b89b9 (diff) | |
| download | blackbird-op-linux-345477ffe2ed0c53ffbbfeae73f9bca38e827d0d.tar.gz blackbird-op-linux-345477ffe2ed0c53ffbbfeae73f9bca38e827d0d.zip | |
gpio: omap: prepare and unprepare the debounce clock
Replace the clk_enable()s with a clk_prepare_enable() and
the clk_disables()s with a clk_disable_unprepare()
This never showed issues due to the OMAP platform code (hwmod)
leaving these clocks in clk_prepare()ed state by default.
Reported-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 01d50a090d87..00f29aa1fb9d 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -178,7 +178,7 @@ static inline void _gpio_rmw(void __iomem *base, u32 reg, u32 mask, bool set) static inline void _gpio_dbck_enable(struct gpio_bank *bank) { if (bank->dbck_enable_mask && !bank->dbck_enabled) { - clk_enable(bank->dbck); + clk_prepare_enable(bank->dbck); bank->dbck_enabled = true; writel_relaxed(bank->dbck_enable_mask, @@ -196,7 +196,7 @@ static inline void _gpio_dbck_disable(struct gpio_bank *bank) */ writel_relaxed(0, bank->base + bank->regs->debounce_en); - clk_disable(bank->dbck); + clk_disable_unprepare(bank->dbck); bank->dbck_enabled = false; } } @@ -229,7 +229,7 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, l = GPIO_BIT(bank, gpio); - clk_enable(bank->dbck); + clk_prepare_enable(bank->dbck); reg = bank->base + bank->regs->debounce; writel_relaxed(debounce, reg); @@ -243,7 +243,7 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, bank->dbck_enable_mask = val; writel_relaxed(val, reg); - clk_disable(bank->dbck); + clk_disable_unprepare(bank->dbck); /* * Enable debounce clock per module. * This call is mandatory because in omap_gpio_request() when @@ -288,7 +288,7 @@ static void _clear_gpio_debounce(struct gpio_bank *bank, unsigned gpio) bank->context.debounce = 0; writel_relaxed(bank->context.debounce, bank->base + bank->regs->debounce); - clk_disable(bank->dbck); + clk_disable_unprepare(bank->dbck); bank->dbck_enabled = false; } } |
