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Input: pxa27x-keypad - make platform data const
It should not be changed by the driver, so let's make it const pointer. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov
parent
f9f6def88a
commit
9eb521394e
@ -100,7 +100,7 @@
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#define MAX_KEYPAD_KEYS (MAX_MATRIX_KEY_NUM + MAX_DIRECT_KEY_NUM)
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struct pxa27x_keypad {
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struct pxa27x_keypad_platform_data *pdata;
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const struct pxa27x_keypad_platform_data *pdata;
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struct clk *clk;
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struct input_dev *input_dev;
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@ -119,11 +119,11 @@ struct pxa27x_keypad {
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};
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#ifdef CONFIG_OF
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static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad)
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static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad,
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struct pxa27x_keypad_platform_data *pdata)
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{
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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u32 rows, cols;
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int error;
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@ -149,11 +149,11 @@ static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad)
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return 0;
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}
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static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad)
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static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad,
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struct pxa27x_keypad_platform_data *pdata)
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{
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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struct device_node *np = dev->of_node;
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const __be16 *prop;
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unsigned short code;
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@ -209,7 +209,8 @@ static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad)
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return 0;
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}
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static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad)
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static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad,
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struct pxa27x_keypad_platform_data *pdata)
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{
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const __be32 *prop;
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int i, relkey_ret;
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@ -219,7 +220,6 @@ static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad)
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const char relkeyname[] = {"marvell,rotary-rel-key"};
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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struct device_node *np = dev->of_node;
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relkey_ret = of_property_read_u32(np, relkeyname, &code);
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@ -287,35 +287,35 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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struct device_node *np = dev->of_node;
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struct pxa27x_keypad_platform_data *pdata;
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int error;
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keypad->pdata = devm_kzalloc(dev, sizeof(*keypad->pdata),
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GFP_KERNEL);
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if (!keypad->pdata) {
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pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata) {
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dev_err(dev, "failed to allocate memory for pdata\n");
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return -ENOMEM;
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}
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error = pxa27x_keypad_matrix_key_parse_dt(keypad);
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error = pxa27x_keypad_matrix_key_parse_dt(keypad, pdata);
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if (error) {
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dev_err(dev, "failed to parse matrix key\n");
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return error;
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}
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error = pxa27x_keypad_direct_key_parse_dt(keypad);
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error = pxa27x_keypad_direct_key_parse_dt(keypad, pdata);
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if (error) {
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dev_err(dev, "failed to parse direct key\n");
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return error;
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}
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error = pxa27x_keypad_rotary_parse_dt(keypad);
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error = pxa27x_keypad_rotary_parse_dt(keypad, pdata);
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if (error) {
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dev_err(dev, "failed to parse rotary key\n");
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return error;
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}
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error = of_property_read_u32(np, "marvell,debounce-interval",
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&keypad->pdata->debounce_interval);
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&pdata->debounce_interval);
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if (error) {
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dev_err(dev, "failed to parse debpunce-interval\n");
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return error;
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@ -327,6 +327,7 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
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*/
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input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
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keypad->pdata = pdata;
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return 0;
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}
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@ -343,7 +344,7 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
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static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
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{
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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struct input_dev *input_dev = keypad->input_dev;
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const struct matrix_keymap_data *keymap_data =
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pdata ? pdata->matrix_keymap_data : NULL;
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@ -412,7 +413,7 @@ static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
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static void pxa27x_keypad_scan_matrix(struct pxa27x_keypad *keypad)
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{
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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struct input_dev *input_dev = keypad->input_dev;
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int row, col, num_keys_pressed = 0;
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uint32_t new_state[MAX_MATRIX_KEY_COLS];
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@ -514,7 +515,7 @@ static void report_rotary_event(struct pxa27x_keypad *keypad, int r, int delta)
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static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
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{
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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uint32_t kprec;
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/* read and reset to default count value */
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@ -530,7 +531,7 @@ static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
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static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
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{
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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struct input_dev *input_dev = keypad->input_dev;
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unsigned int new_state;
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uint32_t kpdk, bits_changed;
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@ -570,7 +571,7 @@ static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
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static void clear_wakeup_event(struct pxa27x_keypad *keypad)
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{
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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if (pdata->clear_wakeup_event)
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(pdata->clear_wakeup_event)();
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@ -594,7 +595,7 @@ static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id)
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static void pxa27x_keypad_config(struct pxa27x_keypad *keypad)
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{
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struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
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unsigned int mask = 0, direct_key_num = 0;
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unsigned long kpc = 0;
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@ -713,7 +714,8 @@ static SIMPLE_DEV_PM_OPS(pxa27x_keypad_pm_ops,
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static int pxa27x_keypad_probe(struct platform_device *pdev)
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{
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struct pxa27x_keypad_platform_data *pdata = pdev->dev.platform_data;
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const struct pxa27x_keypad_platform_data *pdata =
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dev_get_platdata(&pdev->dev);
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struct device_node *np = pdev->dev.of_node;
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struct pxa27x_keypad *keypad;
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struct input_dev *input_dev;
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@ -793,9 +795,6 @@ static int pxa27x_keypad_probe(struct platform_device *pdev)
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goto failed_put_clk;
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}
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/* If device tree is supported, pdata will be allocated. */
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pdata = keypad->pdata;
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if ((pdata->enable_rotary0 && keypad->rotary_rel_code[0] != -1) ||
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(pdata->enable_rotary1 && keypad->rotary_rel_code[1] != -1)) {
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input_dev->evbit[0] |= BIT_MASK(EV_REL);
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