gpio: tegra: Don't open code of_device_get_match_data()

Use of_device_get_match_data() for getting matched data
instead of implementing this locally.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 790bb11..1b0c497 100644 (file)
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -75,6 +75,11 @@ struct tegra_gpio_bank {
 #endif
 };
 
+struct tegra_gpio_soc_config {
+       u32 bank_stride;
+       u32 upper_offset;
+};
+
 static struct device *dev;
 static struct irq_domain *irq_domain;
 static void __iomem *regs;
@@ -445,27 +450,6 @@ static const struct dev_pm_ops tegra_gpio_pm_ops = {
        SET_SYSTEM_SLEEP_PM_OPS(tegra_gpio_suspend, tegra_gpio_resume)
 };
 
-struct tegra_gpio_soc_config {
-       u32 bank_stride;
-       u32 upper_offset;
-};
-
-static struct tegra_gpio_soc_config tegra20_gpio_config = {
-       .bank_stride = 0x80,
-       .upper_offset = 0x800,
-};
-
-static struct tegra_gpio_soc_config tegra30_gpio_config = {
-       .bank_stride = 0x100,
-       .upper_offset = 0x80,
-};
-
-static const struct of_device_id tegra_gpio_of_match[] = {
-       { .compatible = "nvidia,tegra30-gpio", .data = &tegra30_gpio_config },
-       { .compatible = "nvidia,tegra20-gpio", .data = &tegra20_gpio_config },
-       { },
-};
-
 /* This lock class tells lockdep that GPIO irqs are in a different
  * category than their parents, so it won't report false recursion.
  */
@@ -473,8 +457,7 @@ static struct lock_class_key gpio_lock_class;
 
 static int tegra_gpio_probe(struct platform_device *pdev)
 {
-       const struct of_device_id *match;
-       struct tegra_gpio_soc_config *config;
+       const struct tegra_gpio_soc_config *config;
        struct resource *res;
        struct tegra_gpio_bank *bank;
        int ret;
@@ -484,12 +467,11 @@ static int tegra_gpio_probe(struct platform_device *pdev)
 
        dev = &pdev->dev;
 
-       match = of_match_device(tegra_gpio_of_match, &pdev->dev);
-       if (!match) {
+       config = of_device_get_match_data(&pdev->dev);
+       if (!config) {
                dev_err(&pdev->dev, "Error: No device match found\n");
                return -ENODEV;
        }
-       config = (struct tegra_gpio_soc_config *)match->data;
 
        tegra_gpio_bank_stride = config->bank_stride;
        tegra_gpio_upper_offset = config->upper_offset;
@@ -578,6 +560,22 @@ static int tegra_gpio_probe(struct platform_device *pdev)
        return 0;
 }
 
+static struct tegra_gpio_soc_config tegra20_gpio_config = {
+       .bank_stride = 0x80,
+       .upper_offset = 0x800,
+};
+
+static struct tegra_gpio_soc_config tegra30_gpio_config = {
+       .bank_stride = 0x100,
+       .upper_offset = 0x80,
+};
+
+static const struct of_device_id tegra_gpio_of_match[] = {
+       { .compatible = "nvidia,tegra30-gpio", .data = &tegra30_gpio_config },
+       { .compatible = "nvidia,tegra20-gpio", .data = &tegra20_gpio_config },
+       { },
+};
+
 static struct platform_driver tegra_gpio_driver = {
        .driver         = {
                .name   = "tegra-gpio",