[PATCH-next 16/20] gpio: gpio-omap: clean up omap_gpio_restore_context()

Grygorii Strashko
2019-06-10T17:10:59Z

From: Russell King <rmk+kernel@armlinux.org.uk>

Use local variables to store the base iomem address and regs table
pointer like omap_gpio_init_context() does. Not only does this make
the function neater, it also avoids unnecessary reloads of the same
data multiple times.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
drivers/gpio/gpio-omap.c | 36 +++++++++++++++---------------------
1 file changed, 15 insertions(+), 21 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index c24a91b2df97..1c5fa12bcf9f 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -1094,32 +1094,26 @@ static void omap_gpio_init_context(struct gpio_bank *p)

static void omap_gpio_restore_context(struct gpio_bank *bank)
{
- writel_relaxed(bank->context.wake_en,
- bank->base + bank->regs->wkup_en);
- writel_relaxed(bank->context.ctrl, bank->base + bank->regs->ctrl);
- writel_relaxed(bank->context.leveldetect0,
- bank->base + bank->regs->leveldetect0);
- writel_relaxed(bank->context.leveldetect1,
- bank->base + bank->regs->leveldetect1);
- writel_relaxed(bank->context.risingdetect,
- bank->base + bank->regs->risingdetect);
- writel_relaxed(bank->context.fallingdetect,
- bank->base + bank->regs->fallingdetect);
- writel_relaxed(bank->context.dataout,
- bank->base + bank->regs->dataout);
- writel_relaxed(bank->context.oe, bank->base + bank->regs->direction);
+ struct omap_gpio_reg_offs *regs = bank->regs;
+ void __iomem *base = bank->base;
+
+ writel_relaxed(bank->context.wake_en, base + regs->wkup_en);
+ writel_relaxed(bank->context.ctrl, base + regs->ctrl);
+ writel_relaxed(bank->context.leveldetect0, base + regs->leveldetect0);
+ writel_relaxed(bank->context.leveldetect1, base + regs->leveldetect1);
+ writel_relaxed(bank->context.risingdetect, base + regs->risingdetect);
+ writel_relaxed(bank->context.fallingdetect, base + regs->fallingdetect);
+ writel_relaxed(bank->context.dataout, base + regs->dataout);
+ writel_relaxed(bank->context.oe, base + regs->direction);

if (bank->dbck_enable_mask) {
- writel_relaxed(bank->context.debounce, bank->base +
- bank->regs->debounce);
+ writel_relaxed(bank->context.debounce, base + regs->debounce);
writel_relaxed(bank->context.debounce_en,
- bank->base + bank->regs->debounce_en);
+ base + regs->debounce_en);
}

- writel_relaxed(bank->context.irqenable1,
- bank->base + bank->regs->irqenable);
- writel_relaxed(bank->context.irqenable2,
- bank->base + bank->regs->irqenable2);
+ writel_relaxed(bank->context.irqenable1, base + regs->irqenable);
+ writel_relaxed(bank->context.irqenable2, base + regs->irqenable2);
}

static void omap_gpio_idle(struct gpio_bank *bank, bool may_lose_context)
--
2.17.1