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kernel_linux
提交 9eb52139 编写于 作者: D Dmitry Torokhov
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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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
上级 f9f6def8
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Showing with 23 addition and 24 deletion
drivers/input/keyboard/pxa27x_keypad.c
浏览文件 @ 9eb52139
...@@ -100,7 +100,7 @@ ...@@ -100,7 +100,7 @@
#define MAX_KEYPAD_KEYS (MAX_MATRIX_KEY_NUM + MAX_DIRECT_KEY_NUM) #define MAX_KEYPAD_KEYS (MAX_MATRIX_KEY_NUM + MAX_DIRECT_KEY_NUM)
struct pxa27x_keypad { struct pxa27x_keypad {
struct pxa27x_keypad_platform_data *pdata; const struct pxa27x_keypad_platform_data *pdata;
struct clk *clk; struct clk *clk;
struct input_dev *input_dev; struct input_dev *input_dev;
...@@ -119,11 +119,11 @@ struct pxa27x_keypad { ...@@ -119,11 +119,11 @@ struct pxa27x_keypad {
}; };
#ifdef CONFIG_OF #ifdef CONFIG_OF
static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad) static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad,
struct pxa27x_keypad_platform_data *pdata)
{ {
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
struct device *dev = input_dev->dev.parent; struct device *dev = input_dev->dev.parent;
struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
u32 rows, cols; u32 rows, cols;
int error; int error;
...@@ -149,11 +149,11 @@ static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad) ...@@ -149,11 +149,11 @@ static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad)
return 0; return 0;
} }
static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad) static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad,
struct pxa27x_keypad_platform_data *pdata)
{ {
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
struct device *dev = input_dev->dev.parent; struct device *dev = input_dev->dev.parent;
struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
struct device_node *np = dev->of_node; struct device_node *np = dev->of_node;
const __be16 *prop; const __be16 *prop;
unsigned short code; unsigned short code;
...@@ -209,7 +209,8 @@ static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad) ...@@ -209,7 +209,8 @@ static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad)
return 0; return 0;
} }
static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad) static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad,
struct pxa27x_keypad_platform_data *pdata)
{ {
const __be32 *prop; const __be32 *prop;
int i, relkey_ret; int i, relkey_ret;
...@@ -219,7 +220,6 @@ static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad) ...@@ -219,7 +220,6 @@ static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad)
const char relkeyname[] = {"marvell,rotary-rel-key"}; const char relkeyname[] = {"marvell,rotary-rel-key"};
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
struct device *dev = input_dev->dev.parent; struct device *dev = input_dev->dev.parent;
struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
struct device_node *np = dev->of_node; struct device_node *np = dev->of_node;
relkey_ret = of_property_read_u32(np, relkeyname, &code); relkey_ret = of_property_read_u32(np, relkeyname, &code);
...@@ -287,35 +287,35 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad) ...@@ -287,35 +287,35 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
struct device *dev = input_dev->dev.parent; struct device *dev = input_dev->dev.parent;
struct device_node *np = dev->of_node; struct device_node *np = dev->of_node;
struct pxa27x_keypad_platform_data *pdata;
int error; int error;
keypad->pdata = devm_kzalloc(dev, sizeof(*keypad->pdata), pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
GFP_KERNEL); if (!pdata) {
if (!keypad->pdata) {
dev_err(dev, "failed to allocate memory for pdata\n"); dev_err(dev, "failed to allocate memory for pdata\n");
return -ENOMEM; return -ENOMEM;
} }
error = pxa27x_keypad_matrix_key_parse_dt(keypad); error = pxa27x_keypad_matrix_key_parse_dt(keypad, pdata);
if (error) { if (error) {
dev_err(dev, "failed to parse matrix key\n"); dev_err(dev, "failed to parse matrix key\n");
return error; return error;
} }
error = pxa27x_keypad_direct_key_parse_dt(keypad); error = pxa27x_keypad_direct_key_parse_dt(keypad, pdata);
if (error) { if (error) {
dev_err(dev, "failed to parse direct key\n"); dev_err(dev, "failed to parse direct key\n");
return error; return error;
} }
error = pxa27x_keypad_rotary_parse_dt(keypad); error = pxa27x_keypad_rotary_parse_dt(keypad, pdata);
if (error) { if (error) {
dev_err(dev, "failed to parse rotary key\n"); dev_err(dev, "failed to parse rotary key\n");
return error; return error;
} }
error = of_property_read_u32(np, "marvell,debounce-interval", error = of_property_read_u32(np, "marvell,debounce-interval",
&keypad->pdata->debounce_interval); &pdata->debounce_interval);
if (error) { if (error) {
dev_err(dev, "failed to parse debpunce-interval\n"); dev_err(dev, "failed to parse debpunce-interval\n");
return error; return error;
...@@ -327,6 +327,7 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad) ...@@ -327,6 +327,7 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
*/ */
input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes); input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
keypad->pdata = pdata;
return 0; return 0;
} }
...@@ -343,7 +344,7 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad) ...@@ -343,7 +344,7 @@ static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad) static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
{ {
struct pxa27x_keypad_platform_data *pdata = keypad->pdata; const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
const struct matrix_keymap_data *keymap_data = const struct matrix_keymap_data *keymap_data =
pdata ? pdata->matrix_keymap_data : NULL; pdata ? pdata->matrix_keymap_data : NULL;
...@@ -412,7 +413,7 @@ static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad) ...@@ -412,7 +413,7 @@ static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
static void pxa27x_keypad_scan_matrix(struct pxa27x_keypad *keypad) static void pxa27x_keypad_scan_matrix(struct pxa27x_keypad *keypad)
{ {
struct pxa27x_keypad_platform_data *pdata = keypad->pdata; const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
int row, col, num_keys_pressed = 0; int row, col, num_keys_pressed = 0;
uint32_t new_state[MAX_MATRIX_KEY_COLS]; uint32_t new_state[MAX_MATRIX_KEY_COLS];
...@@ -514,7 +515,7 @@ static void report_rotary_event(struct pxa27x_keypad *keypad, int r, int delta) ...@@ -514,7 +515,7 @@ static void report_rotary_event(struct pxa27x_keypad *keypad, int r, int delta)
static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad) static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
{ {
struct pxa27x_keypad_platform_data *pdata = keypad->pdata; const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
uint32_t kprec; uint32_t kprec;
/* read and reset to default count value */ /* read and reset to default count value */
...@@ -530,7 +531,7 @@ static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad) ...@@ -530,7 +531,7 @@ static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad) static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
{ {
struct pxa27x_keypad_platform_data *pdata = keypad->pdata; const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
struct input_dev *input_dev = keypad->input_dev; struct input_dev *input_dev = keypad->input_dev;
unsigned int new_state; unsigned int new_state;
uint32_t kpdk, bits_changed; uint32_t kpdk, bits_changed;
...@@ -570,7 +571,7 @@ static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad) ...@@ -570,7 +571,7 @@ static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
static void clear_wakeup_event(struct pxa27x_keypad *keypad) static void clear_wakeup_event(struct pxa27x_keypad *keypad)
{ {
struct pxa27x_keypad_platform_data *pdata = keypad->pdata; const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
if (pdata->clear_wakeup_event) if (pdata->clear_wakeup_event)
(pdata->clear_wakeup_event)(); (pdata->clear_wakeup_event)();
...@@ -594,7 +595,7 @@ static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id) ...@@ -594,7 +595,7 @@ static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id)
static void pxa27x_keypad_config(struct pxa27x_keypad *keypad) static void pxa27x_keypad_config(struct pxa27x_keypad *keypad)
{ {
struct pxa27x_keypad_platform_data *pdata = keypad->pdata; const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
unsigned int mask = 0, direct_key_num = 0; unsigned int mask = 0, direct_key_num = 0;
unsigned long kpc = 0; unsigned long kpc = 0;
...@@ -713,7 +714,8 @@ static SIMPLE_DEV_PM_OPS(pxa27x_keypad_pm_ops, ...@@ -713,7 +714,8 @@ static SIMPLE_DEV_PM_OPS(pxa27x_keypad_pm_ops,
static int pxa27x_keypad_probe(struct platform_device *pdev) static int pxa27x_keypad_probe(struct platform_device *pdev)
{ {
struct pxa27x_keypad_platform_data *pdata = pdev->dev.platform_data; const struct pxa27x_keypad_platform_data *pdata =
dev_get_platdata(&pdev->dev);
struct device_node *np = pdev->dev.of_node; struct device_node *np = pdev->dev.of_node;
struct pxa27x_keypad *keypad; struct pxa27x_keypad *keypad;
struct input_dev *input_dev; struct input_dev *input_dev;
...@@ -793,9 +795,6 @@ static int pxa27x_keypad_probe(struct platform_device *pdev) ...@@ -793,9 +795,6 @@ static int pxa27x_keypad_probe(struct platform_device *pdev)
goto failed_put_clk; goto failed_put_clk;
} }
/* If device tree is supported, pdata will be allocated. */
pdata = keypad->pdata;
if ((pdata->enable_rotary0 && keypad->rotary_rel_code[0] != -1) || if ((pdata->enable_rotary0 && keypad->rotary_rel_code[0] != -1) ||
(pdata->enable_rotary1 && keypad->rotary_rel_code[1] != -1)) { (pdata->enable_rotary1 && keypad->rotary_rel_code[1] != -1)) {
input_dev->evbit[0] |= BIT_MASK(EV_REL); input_dev->evbit[0] |= BIT_MASK(EV_REL);
......
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