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This will allow easier conversions from platform data to device properties when using static device properties. Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/samsung-keypad.c | 122 +++++++++++++----------- 1 file changed, 64 insertions(+), 58 deletions(-) diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c index e262137b6838..df2427ac63d7 100644 --- a/drivers/input/keyboard/samsung-keypad.c +++ b/drivers/input/keyboard/samsung-keypad.c @@ -231,78 +231,85 @@ static void samsung_keypad_close(struct input_dev *input_dev) samsung_keypad_stop(keypad); } -#ifdef CONFIG_OF -static struct samsung_keypad_platdata * -samsung_keypad_parse_dt(struct device *dev) +static const struct matrix_keymap_data * +samsung_parse_verbose_keymap(struct device *dev) { - struct samsung_keypad_platdata *pdata; struct matrix_keymap_data *keymap_data; - uint32_t *keymap, num_rows = 0, num_cols = 0; - struct device_node *np = dev->of_node, *key_np; + struct fwnode_handle *child; + u32 *keymap; unsigned int key_count; - if (!np) { - dev_err(dev, "missing device tree data\n"); - return ERR_PTR(-EINVAL); - } - - pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(dev, "could not allocate memory for platform data\n"); - return ERR_PTR(-ENOMEM); - } - - of_property_read_u32(np, "samsung,keypad-num-rows", &num_rows); - of_property_read_u32(np, "samsung,keypad-num-columns", &num_cols); - if (!num_rows || !num_cols) { - dev_err(dev, "number of keypad rows/columns not specified\n"); - return ERR_PTR(-EINVAL); - } - pdata->rows = num_rows; - pdata->cols = num_cols; - keymap_data = devm_kzalloc(dev, sizeof(*keymap_data), GFP_KERNEL); if (!keymap_data) { dev_err(dev, "could not allocate memory for keymap data\n"); return ERR_PTR(-ENOMEM); } - pdata->keymap_data = keymap_data; - key_count = of_get_child_count(np); - keymap_data->keymap_size = key_count; - keymap = devm_kcalloc(dev, key_count, sizeof(uint32_t), GFP_KERNEL); + key_count = device_get_child_node_count(dev); + keymap = devm_kcalloc(dev, key_count, sizeof(*keymap), GFP_KERNEL); if (!keymap) { dev_err(dev, "could not allocate memory for keymap\n"); return ERR_PTR(-ENOMEM); } + + keymap_data->keymap_size = key_count; keymap_data->keymap = keymap; - for_each_child_of_node(np, key_np) { + device_for_each_child_node(dev, child) { u32 row, col, key_code; - of_property_read_u32(key_np, "keypad,row", &row); - of_property_read_u32(key_np, "keypad,column", &col); - of_property_read_u32(key_np, "linux,code", &key_code); + + fwnode_property_read_u32(child, "keypad,row", &row); + fwnode_property_read_u32(child, "keypad,column", &col); + fwnode_property_read_u32(child, "linux,code", &key_code); + *keymap++ = KEY(row, col, key_code); } - pdata->no_autorepeat = of_property_read_bool(np, "linux,input-no-autorepeat"); + return keymap_data; +} - pdata->wakeup = of_property_read_bool(np, "wakeup-source") || - /* legacy name */ - of_property_read_bool(np, "linux,input-wakeup"); +static const struct samsung_keypad_platdata * +samsung_keypad_parse_properties(struct device *dev) +{ + const struct matrix_keymap_data *keymap_data; + struct samsung_keypad_platdata *pdata; + u32 num_rows = 0, num_cols = 0; + int error; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(dev, "could not allocate memory for platform data\n"); + return ERR_PTR(-ENOMEM); + } + device_property_read_u32(dev, "samsung,keypad-num-rows", &num_rows); + device_property_read_u32(dev, "samsung,keypad-num-columns", &num_cols); + + error = matrix_keypad_parse_properties(dev, &num_rows, &num_cols); + if (error) + return ERR_PTR(error); + + pdata->rows = num_rows; + pdata->cols = num_cols; + + if (!device_property_present(dev, "linux,keymap")) { + keymap_data = samsung_parse_verbose_keymap(dev); + if (IS_ERR(keymap_data)) + return ERR_CAST(keymap_data); + + pdata->keymap_data = keymap_data; + } - return pdata; -} -#else -static struct samsung_keypad_platdata * -samsung_keypad_parse_dt(struct device *dev) -{ - dev_err(dev, "no platform data defined\n"); - return ERR_PTR(-EINVAL); + pdata->no_autorepeat = + device_property_read_bool(dev, "linux,input-no-autorepeat"); + + pdata->wakeup = device_property_read_bool(dev, "wakeup-source") || + /* legacy name */ + device_property_read_bool(dev, "linux,input-wakeup"); + + return pdata; } -#endif static void samsung_disable_runtime_pm(void *data) { @@ -314,7 +321,6 @@ static void samsung_disable_runtime_pm(void *data) static int samsung_keypad_probe(struct platform_device *pdev) { const struct samsung_keypad_platdata *pdata; - const struct matrix_keymap_data *keymap_data; const struct platform_device_id *id; struct samsung_keypad *keypad; struct resource *res; @@ -323,18 +329,17 @@ static int samsung_keypad_probe(struct platform_device *pdev) int error; pdata = dev_get_platdata(&pdev->dev); - if (!pdata) { - pdata = samsung_keypad_parse_dt(&pdev->dev); + if (pdata) { + if (!pdata->keymap_data) { + dev_err(&pdev->dev, "no keymap data defined\n"); + return -EINVAL; + } + } else { + pdata = samsung_keypad_parse_properties(&pdev->dev); if (IS_ERR(pdata)) return PTR_ERR(pdata); } - keymap_data = pdata->keymap_data; - if (!keymap_data) { - dev_err(&pdev->dev, "no keymap data defined\n"); - return -EINVAL; - } - if (!pdata->rows || pdata->rows > SAMSUNG_MAX_ROWS) return -EINVAL; @@ -398,7 +403,7 @@ static int samsung_keypad_probe(struct platform_device *pdev) input_dev->open = samsung_keypad_open; input_dev->close = samsung_keypad_close; - error = matrix_keypad_build_keymap(keymap_data, NULL, + error = matrix_keypad_build_keymap(pdata->keymap_data, NULL, pdata->rows, pdata->cols, keypad->keycodes, input_dev); if (error) { @@ -439,11 +444,12 @@ static int samsung_keypad_probe(struct platform_device *pdev) if (error) return error; - if (pdev->dev.of_node) { + if (!dev_get_platdata(&pdev->dev)) { devm_kfree(&pdev->dev, (void *)pdata->keymap_data->keymap); devm_kfree(&pdev->dev, (void *)pdata->keymap_data); devm_kfree(&pdev->dev, (void *)pdata); } + return 0; }