提交 6d13eaaf 编写于 作者: N Nishanth Menon 提交者: Tarun Kanti DebBarma

gpio/omap: restore OE only after setting the output level

Setup the dataout register before restoring OE. This is to make
sure that we have valid data in dataout register which would be
made available in output pins as soon as OE is enabled. Else,
there is risk of unknown data getting out into gpio pins.
Signed-off-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: NKevin Hilman <khilman@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>
上级 ba805be5
......@@ -1355,7 +1355,6 @@ static void omap_gpio_restore_context(struct gpio_bank *bank)
__raw_writel(bank->context.wake_en,
bank->base + bank->regs->wkup_en);
__raw_writel(bank->context.ctrl, bank->base + bank->regs->ctrl);
__raw_writel(bank->context.oe, bank->base + bank->regs->direction);
__raw_writel(bank->context.leveldetect0,
bank->base + bank->regs->leveldetect0);
__raw_writel(bank->context.leveldetect1,
......@@ -1365,6 +1364,8 @@ static void omap_gpio_restore_context(struct gpio_bank *bank)
__raw_writel(bank->context.fallingdetect,
bank->base + bank->regs->fallingdetect);
__raw_writel(bank->context.dataout, bank->base + bank->regs->dataout);
__raw_writel(bank->context.oe, bank->base + bank->regs->direction);
if (bank->dbck_enable_mask) {
__raw_writel(bank->context.debounce, bank->base +
bank->regs->debounce);
......
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