On Wed May 6 09:48:45 2026 +0300, Svyatoslav Ryhel wrote: > Since there are no users of this driver via platform data, remove the > platform data support and switch to using Device Tree bindings. > > Converting to Device Tree assumes dynamic and independent registration of > LEDs. To monitor the configured LEDs, a bitmap has been added. This makes > LED cleanup more robust and less context dependent. > > Signed-off-by: Svyatoslav Ryhel <[email protected]> > Signed-off-by: Sakari Ailus <[email protected]>
Patch committed. Thanks, Sakari Ailus drivers/media/i2c/lm3560.c | 141 ++++++++++++++++++++++++++++++++------------- include/media/i2c/lm3560.h | 15 ----- 2 files changed, 100 insertions(+), 56 deletions(-) --- diff --git a/drivers/media/i2c/lm3560.c b/drivers/media/i2c/lm3560.c index 5b568ed9536b..609fd0339345 100644 --- a/drivers/media/i2c/lm3560.c +++ b/drivers/media/i2c/lm3560.c @@ -9,11 +9,14 @@ * Ldd-Mlp <[email protected]> */ +#include <linux/bitmap.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/i2c.h> #include <linux/slab.h> +#include <linux/mod_devicetable.h> #include <linux/mutex.h> +#include <linux/property.h> #include <linux/regmap.h> #include <linux/videodev2.h> #include <media/i2c/lm3560.h> @@ -43,22 +46,33 @@ enum led_enable { * struct lm3560_flash * * @dev: pointer to &struct device - * @pdata: platform data * @regmap: reg. map for i2c * @lock: muxtex for serial access. * @led_mode: V4L2 LED mode * @ctrls_led: V4L2 controls * @subdev_led: V4L2 subdev + * @led_id: LED status holder + * @peak: peak current + * @max_flash_timeout: flash timeout + * @max_flash_brt: flash mode led brightness + * @max_torch_brt: torch mode led brightness */ struct lm3560_flash { struct device *dev; - struct lm3560_platform_data *pdata; struct regmap *regmap; struct mutex lock; enum v4l2_flash_led_mode led_mode; struct v4l2_ctrl_handler ctrls_led[LM3560_LED_MAX]; struct v4l2_subdev subdev_led[LM3560_LED_MAX]; + + DECLARE_BITMAP(led_id, LM3560_LED_MAX); + + enum lm3560_peak_current peak; + u32 max_flash_timeout; + + u32 max_flash_brt[LM3560_LED_MAX]; + u32 max_torch_brt[LM3560_LED_MAX]; }; #define to_lm3560_flash(_ctrl, _no) \ @@ -269,8 +283,8 @@ static int lm3560_init_controls(struct lm3560_flash *flash, enum lm3560_led_id led_no) { struct v4l2_ctrl *fault; - u32 max_flash_brt = flash->pdata->max_flash_brt[led_no]; - u32 max_torch_brt = flash->pdata->max_torch_brt[led_no]; + u32 max_flash_brt = flash->max_flash_brt[led_no]; + u32 max_torch_brt = flash->max_torch_brt[led_no]; struct v4l2_ctrl_handler *hdl = &flash->ctrls_led[led_no]; const struct v4l2_ctrl_ops *ops = &lm3560_led_ctrl_ops[led_no]; @@ -295,9 +309,9 @@ static int lm3560_init_controls(struct lm3560_flash *flash, /* flash strobe timeout */ v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TIMEOUT, LM3560_FLASH_TOUT_MIN, - flash->pdata->max_flash_timeout, + flash->max_flash_timeout, LM3560_FLASH_TOUT_STEP, - flash->pdata->max_flash_timeout); + flash->max_flash_timeout); /* flash brt */ v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_INTENSITY, @@ -339,15 +353,18 @@ static const struct regmap_config lm3560_regmap = { }; static int lm3560_subdev_init(struct lm3560_flash *flash, - enum lm3560_led_id led_no, char *led_name) + enum lm3560_led_id led_no, + struct fwnode_handle *fwnode) { struct i2c_client *client = to_i2c_client(flash->dev); int rval; v4l2_i2c_subdev_init(&flash->subdev_led[led_no], client, &lm3560_ops); flash->subdev_led[led_no].flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - strscpy(flash->subdev_led[led_no].name, led_name, - sizeof(flash->subdev_led[led_no].name)); + snprintf(flash->subdev_led[led_no].name, + sizeof(flash->subdev_led[led_no].name), + "lm3560-led%d", led_no); + flash->subdev_led[led_no].fwnode = fwnode_handle_get(fwnode); rval = lm3560_init_controls(flash, led_no); if (rval) goto err_out; @@ -378,7 +395,7 @@ static int lm3560_init_device(struct lm3560_flash *flash) /* set peak current */ rval = regmap_update_bits(flash->regmap, - REG_FLASH_TOUT, 0x60, flash->pdata->peak); + REG_FLASH_TOUT, 0x60, flash->peak); if (rval < 0) return rval; /* output disable */ @@ -391,18 +408,21 @@ static int lm3560_init_device(struct lm3560_flash *flash) return rval; } -static void lm3560_subdev_cleanup(struct lm3560_flash *flash, - enum lm3560_led_id led_no) +static void lm3560_subdev_cleanup(struct lm3560_flash *flash) { - v4l2_async_unregister_subdev(&flash->subdev_led[led_no]); - v4l2_ctrl_handler_free(&flash->ctrls_led[led_no]); - media_entity_cleanup(&flash->subdev_led[led_no].entity); + int led_no; + + for_each_set_bit(led_no, flash->led_id, LM3560_LED_MAX) { + v4l2_async_unregister_subdev(&flash->subdev_led[led_no]); + v4l2_ctrl_handler_free(&flash->ctrls_led[led_no]); + media_entity_cleanup(&flash->subdev_led[led_no].entity); + } } static int lm3560_probe(struct i2c_client *client) { struct lm3560_flash *flash; - struct lm3560_platform_data *pdata = dev_get_platdata(&client->dev); + u32 peak_ua; int rval; flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL); @@ -415,36 +435,69 @@ static int lm3560_probe(struct i2c_client *client) return rval; } - /* if there is no platform data, use chip default value */ - if (pdata == NULL) { - pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); - if (pdata == NULL) - return -ENODEV; - pdata->peak = LM3560_PEAK_3600mA; - pdata->max_flash_timeout = LM3560_FLASH_TOUT_MAX; - /* led 1 */ - pdata->max_flash_brt[LM3560_LED0] = LM3560_FLASH_BRT_MAX; - pdata->max_torch_brt[LM3560_LED0] = LM3560_TORCH_BRT_MAX; - /* led 2 */ - pdata->max_flash_brt[LM3560_LED1] = LM3560_FLASH_BRT_MAX; - pdata->max_torch_brt[LM3560_LED1] = LM3560_TORCH_BRT_MAX; - } - flash->pdata = pdata; flash->dev = &client->dev; mutex_init(&flash->lock); + bitmap_zero(flash->led_id, LM3560_LED_MAX); + + flash->peak = LM3560_PEAK_1600mA; + rval = device_property_read_u32(flash->dev, + "ti,peak-current-microamp", &peak_ua); + if (!rval) { + switch (peak_ua) { + case 1600000: + flash->peak = LM3560_PEAK_1600mA; + break; + case 2300000: + flash->peak = LM3560_PEAK_2300mA; + break; + case 3000000: + flash->peak = LM3560_PEAK_3000mA; + break; + case 3600000: + flash->peak = LM3560_PEAK_3600mA; + break; + default: + return -EINVAL; + } + } + + flash->max_flash_timeout = LM3560_FLASH_TOUT_MIN * 1000; + device_property_read_u32(flash->dev, "flash-max-timeout-us", + &flash->max_flash_timeout); + flash->max_flash_timeout /= 1000; + rval = lm3560_init_device(flash); if (rval < 0) return rval; - rval = lm3560_subdev_init(flash, LM3560_LED0, "lm3560-led0"); - if (rval < 0) - return rval; + device_for_each_child_node_scoped(flash->dev, node) { + u32 reg; - rval = lm3560_subdev_init(flash, LM3560_LED1, "lm3560-led1"); - if (rval < 0) { - lm3560_subdev_cleanup(flash, LM3560_LED0); - return rval; + rval = fwnode_property_read_u32(node, "reg", ®); + if (rval < 0) + /* We care only about nodes with reg property */ + continue; + + if (reg == LM3560_LED0 || reg == LM3560_LED1) { + flash->max_flash_brt[reg] = LM3560_FLASH_BRT_MIN; + fwnode_property_read_u32(node, "flash-max-microamp", + &flash->max_flash_brt[reg]); + + flash->max_torch_brt[reg] = LM3560_TORCH_BRT_MIN; + fwnode_property_read_u32(node, "led-max-microamp", + &flash->max_torch_brt[reg]); + + rval = lm3560_subdev_init(flash, reg, node); + if (rval < 0) { + lm3560_subdev_cleanup(flash); + return dev_err_probe(flash->dev, rval, + "failed to register led%d\n", + reg); + } + + set_bit(reg, flash->led_id); + } } i2c_set_clientdata(client, flash); @@ -455,12 +508,17 @@ static int lm3560_probe(struct i2c_client *client) static void lm3560_remove(struct i2c_client *client) { struct lm3560_flash *flash = i2c_get_clientdata(client); - unsigned int i; - for (i = LM3560_LED0; i < LM3560_LED_MAX; i++) - lm3560_subdev_cleanup(flash, i); + lm3560_subdev_cleanup(flash); } +static const struct of_device_id lm3560_of_match[] = { + { .compatible = "ti,lm3559" }, + { .compatible = "ti,lm3560" }, + { } +}; +MODULE_DEVICE_TABLE(of, lm3560_of_match); + static const struct i2c_device_id lm3560_id_table[] = { { LM3559_NAME }, { LM3560_NAME }, @@ -473,6 +531,7 @@ static struct i2c_driver lm3560_i2c_driver = { .driver = { .name = LM3560_NAME, .pm = NULL, + .of_match_table = lm3560_of_match, }, .probe = lm3560_probe, .remove = lm3560_remove, diff --git a/include/media/i2c/lm3560.h b/include/media/i2c/lm3560.h index 770d8c72c94a..b56c1ff8fd49 100644 --- a/include/media/i2c/lm3560.h +++ b/include/media/i2c/lm3560.h @@ -66,19 +66,4 @@ enum lm3560_peak_current { LM3560_PEAK_3600mA = 0x60 }; -/* struct lm3560_platform_data - * - * @peak : peak current - * @max_flash_timeout: flash timeout - * @max_flash_brt: flash mode led brightness - * @max_torch_brt: torch mode led brightness - */ -struct lm3560_platform_data { - enum lm3560_peak_current peak; - - u32 max_flash_timeout; - u32 max_flash_brt[LM3560_LED_MAX]; - u32 max_torch_brt[LM3560_LED_MAX]; -}; - #endif /* __LM3560_H__ */ _______________________________________________ linuxtv-commits mailing list -- [email protected] To unsubscribe send an email to [email protected]
