diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/keyboard/pxa27x_keyboard.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/input/keyboard/pxa27x_keyboard.c b/drivers/input/keyboard/pxa27x_keyboard.c index ebe5eacf299..b7061aa3881 100644 --- a/drivers/input/keyboard/pxa27x_keyboard.c +++ b/drivers/input/keyboard/pxa27x_keyboard.c @@ -23,6 +23,8 @@ #include <linux/input.h> #include <linux/device.h> #include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/err.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -40,6 +42,8 @@ col/2 == 2 ? KPASMKP2 : KPASMKP3) #define KPASMKPx_MKC(row, col) (1 << (row + 16 * (col % 2))) +static struct clk *pxakbd_clk; + static irqreturn_t pxakbd_irq_handler(int irq, void *dev_id) { struct platform_device *pdev = dev_id; @@ -104,7 +108,7 @@ static int pxakbd_open(struct input_dev *dev) KPREC = 0x7F; /* Enable unit clock */ - pxa_set_cken(CKEN_KEYPAD, 1); + clk_enable(pxakbd_clk); return 0; } @@ -112,7 +116,7 @@ static int pxakbd_open(struct input_dev *dev) static void pxakbd_close(struct input_dev *dev) { /* Disable clock unit */ - pxa_set_cken(CKEN_KEYPAD, 0); + clk_disable(pxakbd_clk); } #ifdef CONFIG_PM @@ -140,7 +144,8 @@ static int pxakbd_resume(struct platform_device *pdev) KPREC = pdata->reg_kprec; /* Enable unit clock */ - pxa_set_cken(CKEN_KEYPAD, 1); + clk_disable(pxakbd_clk); + clk_enable(pxakbd_clk); } mutex_unlock(&input_dev->mutex); @@ -158,11 +163,18 @@ static int __devinit pxakbd_probe(struct platform_device *pdev) struct input_dev *input_dev; int i, row, col, error; + pxakbd_clk = clk_get(&pdev->dev, "KBDCLK"); + if (IS_ERR(pxakbd_clk)) { + error = PTR_ERR(pxakbd_clk); + goto err_clk; + } + /* Create and register the input driver. */ input_dev = input_allocate_device(); if (!input_dev) { printk(KERN_ERR "Cannot request keypad device\n"); - return -ENOMEM; + error = -ENOMEM; + goto err_alloc; } input_dev->name = DRIVER_NAME; @@ -185,7 +197,6 @@ static int __devinit pxakbd_probe(struct platform_device *pdev) DRIVER_NAME, pdev); if (error) { printk(KERN_ERR "Cannot request keypad IRQ\n"); - pxa_set_cken(CKEN_KEYPAD, 0); goto err_free_dev; } @@ -217,6 +228,9 @@ static int __devinit pxakbd_probe(struct platform_device *pdev) free_irq(IRQ_KEYPAD, pdev); err_free_dev: input_free_device(input_dev); + err_alloc: + clk_put(pxakbd_clk); + err_clk: return error; } @@ -226,6 +240,7 @@ static int __devexit pxakbd_remove(struct platform_device *pdev) input_unregister_device(input_dev); free_irq(IRQ_KEYPAD, pdev); + clk_put(pxakbd_clk); platform_set_drvdata(pdev, NULL); return 0; |