Merge branch 'kevin' into fixes
authorLinus Walleij <linus.walleij@linaro.org>
Mon, 9 Jul 2012 18:02:28 +0000 (20:02 +0200)
committerLinus Walleij <linus.walleij@linaro.org>
Mon, 9 Jul 2012 18:02:28 +0000 (20:02 +0200)
drivers/gpio/gpio-omap.c

index c4ed172..4fbc208 100644 (file)
@@ -174,12 +174,22 @@ static inline void _gpio_dbck_enable(struct gpio_bank *bank)
        if (bank->dbck_enable_mask && !bank->dbck_enabled) {
                clk_enable(bank->dbck);
                bank->dbck_enabled = true;
+
+               __raw_writel(bank->dbck_enable_mask,
+                            bank->base + bank->regs->debounce_en);
        }
 }
 
 static inline void _gpio_dbck_disable(struct gpio_bank *bank)
 {
        if (bank->dbck_enable_mask && bank->dbck_enabled) {
+               /*
+                * Disable debounce before cutting it's clock. If debounce is
+                * enabled but the clock is not, GPIO module seems to be unable
+                * to detect events and generate interrupts at least on OMAP3.
+                */
+               __raw_writel(0, bank->base + bank->regs->debounce_en);
+
                clk_disable(bank->dbck);
                bank->dbck_enabled = false;
        }
@@ -1081,7 +1091,6 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
        bank->is_mpuio = pdata->is_mpuio;
        bank->non_wakeup_gpios = pdata->non_wakeup_gpios;
        bank->loses_context = pdata->loses_context;
-       bank->get_context_loss_count = pdata->get_context_loss_count;
        bank->regs = pdata->regs;
 #ifdef CONFIG_OF_GPIO
        bank->chip.of_node = of_node_get(node);
@@ -1135,6 +1144,9 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
        omap_gpio_chip_init(bank);
        omap_gpio_show_rev(bank);
 
+       if (bank->loses_context)
+               bank->get_context_loss_count = pdata->get_context_loss_count;
+
        pm_runtime_put(bank->dev);
 
        list_add_tail(&bank->node, &omap_gpio_list);