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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2012-08-01 09:08:49 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-08-22 09:29:51 +0400
commitce9195378299ff2f3d703937de46bdd338e780eb (patch)
treeb80eaee93c49bd706019e545a09f3d67d804d3cd /drivers/input/misc/rotary_encoder.c
parent429a34d7477bb7071d37dd98b89f000ee6f0193b (diff)
downloadlinux-ce9195378299ff2f3d703937de46bdd338e780eb.tar.xz
Input: rotary-encoder - constify platform data pointers
Drivers should not be changing platform data attached to the device because they do not own it. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/misc/rotary_encoder.c')
-rw-r--r--drivers/input/misc/rotary_encoder.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index e261ad4e6c61..ea51265d4e04 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -29,7 +29,7 @@
struct rotary_encoder {
struct input_dev *input;
- struct rotary_encoder_platform_data *pdata;
+ const struct rotary_encoder_platform_data *pdata;
unsigned int axis;
unsigned int pos;
@@ -43,7 +43,7 @@ struct rotary_encoder {
char last_stable;
};
-static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
+static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)
{
int a = !!gpio_get_value(pdata->gpio_a);
int b = !!gpio_get_value(pdata->gpio_b);
@@ -56,7 +56,7 @@ static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
static void rotary_encoder_report_event(struct rotary_encoder *encoder)
{
- struct rotary_encoder_platform_data *pdata = encoder->pdata;
+ const struct rotary_encoder_platform_data *pdata = encoder->pdata;
if (pdata->relative_axis) {
input_report_rel(encoder->input,
@@ -142,10 +142,10 @@ static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id)
static int __devinit rotary_encoder_probe(struct platform_device *pdev)
{
- struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);
struct rotary_encoder *encoder;
struct input_dev *input;
- struct device *dev = &pdev->dev;
irq_handler_t handler;
int err;
@@ -247,7 +247,7 @@ exit_free_mem:
static int __devexit rotary_encoder_remove(struct platform_device *pdev)
{
struct rotary_encoder *encoder = platform_get_drvdata(pdev);
- struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+ const struct rotary_encoder_platform_data *pdata = encoder->pdata;
free_irq(encoder->irq_a, encoder);
free_irq(encoder->irq_b, encoder);