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From 509bc67e8e365c8f1a0cb91abcac7c7772cf8335 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 8 Mar 2012 11:22:03 +0100
Subject: [PATCH 29/73] MIPS: lantiq: convert falcon gpio to clkdev api
The falcon gpio clocks used to be enabled when registering the platform device.
Move this code into the driver and use clkdev api.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/lantiq/falcon/devices.c | 5 -----
arch/mips/lantiq/falcon/gpio.c | 10 ++++++++++
2 files changed, 10 insertions(+), 5 deletions(-)
--- a/arch/mips/lantiq/falcon/devices.c
+++ b/arch/mips/lantiq/falcon/devices.c
@@ -111,9 +111,6 @@ falcon_register_gpio(void)
falcon_gpio1_res, ARRAY_SIZE(falcon_gpio1_res));
platform_device_register_simple("falcon_gpio", 2,
falcon_gpio2_res, ARRAY_SIZE(falcon_gpio2_res));
- ltq_sysctl_activate(SYSCTL_SYS1, ACTS_PADCTRL1 | ACTS_P1);
- ltq_sysctl_activate(SYSCTL_SYSETH, ACTS_PADCTRL0 |
- ACTS_PADCTRL2 | ACTS_P0 | ACTS_P2);
}
void __init
@@ -123,6 +120,4 @@ falcon_register_gpio_extra(void)
falcon_gpio3_res, ARRAY_SIZE(falcon_gpio3_res));
platform_device_register_simple("falcon_gpio", 4,
falcon_gpio4_res, ARRAY_SIZE(falcon_gpio4_res));
- ltq_sysctl_activate(SYSCTL_SYS1,
- ACTS_PADCTRL3 | ACTS_PADCTRL4 | ACTS_P3 | ACTS_P4);
}
--- a/arch/mips/lantiq/falcon/gpio.c
+++ b/arch/mips/lantiq/falcon/gpio.c
@@ -11,6 +11,7 @@
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/err.h>
#include <linux/platform_device.h>
#include <lantiq_soc.h>
@@ -71,6 +72,7 @@ struct falcon_gpio_port {
void __iomem *port;
unsigned int irq_base;
unsigned int chained_irq;
+ struct clk *clk;
};
static struct falcon_gpio_port ltq_gpio_port[MAX_PORTS];
@@ -332,6 +334,14 @@ falcon_gpio_probe(struct platform_device
goto err;
}
+ gpio_port->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(gpio_port->clk)) {
+ dev_err(&pdev->dev, "Could not get clock\n");
+ ret = PTR_ERR(gpio_port->clk);;
+ goto err;
+ }
+ clk_enable(gpio_port->clk);
+
if (irq > 0) {
/* irq_chip support */
gpio_port->gpio_chip.to_irq = falcon_gpio_to_irq;
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