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authorUlf Hansson <ulf.hansson@linaro.org>2012-11-03 12:16:55 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-11-10 00:28:46 -0800
commitd852f9597359babcc3f6b328cefc151ab6995d00 (patch)
tree3e1af8cd8880ef5b020c68d54e1703ebe3b948d7 /drivers/input/keyboard/nomadik-ske-keypad.c
parentInput: nomadik-ske-keypad - fixup use of clk (diff)
downloadlinux-dev-d852f9597359babcc3f6b328cefc151ab6995d00.tar.xz
linux-dev-d852f9597359babcc3f6b328cefc151ab6995d00.zip
Input: nomadik-ske-keypad - start using the apb_pclk
Previously this clock was handled internally by the clockdriver, but now this is separate clk. So we need take care of it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/keyboard/nomadik-ske-keypad.c')
-rw-r--r--drivers/input/keyboard/nomadik-ske-keypad.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
index 95dcc9bdeec3..a1a9375f18ff 100644
--- a/drivers/input/keyboard/nomadik-ske-keypad.c
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -67,6 +67,7 @@ struct ske_keypad {
const struct ske_keypad_platform_data *board;
unsigned short keymap[SKE_KPD_NUM_ROWS * SKE_KPD_NUM_COLS];
struct clk *clk;
+ struct clk *pclk;
spinlock_t ske_keypad_lock;
};
@@ -271,11 +272,18 @@ static int __init ske_keypad_probe(struct platform_device *pdev)
goto err_free_mem_region;
}
+ keypad->pclk = clk_get(&pdev->dev, "apb_pclk");
+ if (IS_ERR(keypad->pclk)) {
+ dev_err(&pdev->dev, "failed to get pclk\n");
+ error = PTR_ERR(keypad->pclk);
+ goto err_iounmap;
+ }
+
keypad->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(keypad->clk)) {
dev_err(&pdev->dev, "failed to get clk\n");
error = PTR_ERR(keypad->clk);
- goto err_iounmap;
+ goto err_pclk;
}
input->id.bustype = BUS_HOST;
@@ -294,10 +302,16 @@ static int __init ske_keypad_probe(struct platform_device *pdev)
if (!plat->no_autorepeat)
__set_bit(EV_REP, input->evbit);
+ error = clk_prepare_enable(keypad->pclk);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to prepare/enable pclk\n");
+ goto err_clk;
+ }
+
error = clk_prepare_enable(keypad->clk);
if (error) {
dev_err(&pdev->dev, "Failed to prepare/enable clk\n");
- goto err_clk;
+ goto err_pclk_disable;
}
@@ -336,8 +350,12 @@ err_free_irq:
free_irq(keypad->irq, keypad);
err_clk_disable:
clk_disable_unprepare(keypad->clk);
+err_pclk_disable:
+ clk_disable_unprepare(keypad->pclk);
err_clk:
clk_put(keypad->clk);
+err_pclk:
+ clk_put(keypad->pclk);
err_iounmap:
iounmap(keypad->reg_base);
err_free_mem_region: