diff mbox

[3/4] gpio: mpc8xxx: add support for MPC5125

Message ID 1437073704-13881-3-git-send-email-u.kleine-koenig@pengutronix.de
State New
Headers show

Commit Message

Uwe Kleine-König July 16, 2015, 7:08 p.m. UTC 
The gpio controller on MPC5125 is identical to the MPC5121 register
wise, the only difference is that the lines 0..3 are input only instead
of 28..31 on MPC5121.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/gpio/gpio-mpc8xxx.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Comments

Linus Walleij July 27, 2015, 11:52 a.m. UTC | #1 
On Thu, Jul 16, 2015 at 9:08 PM, Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> wrote:

> The gpio controller on MPC5125 is identical to the MPC5121 register
> wise, the only difference is that the lines 0..3 are input only instead
> of 28..31 on MPC5121.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Patch applied.

Yours,
Linus Walleij
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diff mbox

Patch

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 836494420a56..4c5137793431 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -174,6 +174,15 @@  static int mpc5121_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val
 	return mpc8xxx_gpio_dir_out(gc, gpio, val);
 }
 
+static int mpc5125_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+	/* GPIO 0..3 are input only on MPC5125 */
+	if (gpio <= 3)
+		return -EINVAL;
+
+	return mpc8xxx_gpio_dir_out(gc, gpio, val);
+}
+
 static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 {
 	struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
@@ -341,6 +350,11 @@  static const struct mpc8xxx_gpio_devtype mpc512x_gpio_devtype = {
 	.irq_set_type = mpc512x_irq_set_type,
 };
 
+static const struct mpc8xxx_gpio_devtype mpc5125_gpio_devtype = {
+	.gpio_dir_out = mpc5125_gpio_dir_out,
+	.irq_set_type = mpc512x_irq_set_type,
+};
+
 static const struct mpc8xxx_gpio_devtype mpc8572_gpio_devtype = {
 	.gpio_get = mpc8572_gpio_get,
 };
@@ -356,6 +370,7 @@  static const struct of_device_id mpc8xxx_gpio_ids[] = {
 	{ .compatible = "fsl,mpc8572-gpio", .data = &mpc8572_gpio_devtype, },
 	{ .compatible = "fsl,mpc8610-gpio", },
 	{ .compatible = "fsl,mpc5121-gpio", .data = &mpc512x_gpio_devtype, },
+	{ .compatible = "fsl,mpc5125-gpio", .data = &mpc5125_gpio_devtype, },
 	{ .compatible = "fsl,pq3-gpio",     },
 	{ .compatible = "fsl,qoriq-gpio",   },
 	{}