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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-08-01 07:08:49 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-08-22 07:29:51 +0200 |
| commit | ce9195378299ff2f3d703937de46bdd338e780eb (patch) | |
| tree | b80eaee93c49bd706019e545a09f3d67d804d3cd /drivers/input/misc/rotary_encoder.c | |
| parent | Input: rotary-encoder - use gpio_request_one() (diff) | |
| download | linux-ce9195378299ff2f3d703937de46bdd338e780eb.tar.xz linux-ce9195378299ff2f3d703937de46bdd338e780eb.zip | |
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.c | 12 |
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); |