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Diffstat (limited to 'drivers/leds/leds-as3645a.c')
-rw-r--r--drivers/leds/leds-as3645a.c103
1 files changed, 53 insertions, 50 deletions
diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index 98a69b1a43f9..14ab6b0e4de9 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* drivers/leds/leds-as3645a.c - AS3645A and LM3555 flash controllers driver
*
@@ -7,15 +8,6 @@
* Based on drivers/media/i2c/as3645a.c.
*
* Contact: Sakari Ailus <sakari.ailus@iki.fi>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*/
#include <linux/delay.h>
@@ -25,7 +17,7 @@
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
-#include <linux/of.h>
+#include <linux/property.h>
#include <linux/slab.h>
#include <media/v4l2-flash-led-class.h>
@@ -148,8 +140,8 @@ struct as3645a {
struct v4l2_flash *vf;
struct v4l2_flash *vfind;
- struct device_node *flash_node;
- struct device_node *indicator_node;
+ struct fwnode_handle *flash_node;
+ struct fwnode_handle *indicator_node;
struct as3645a_config cfg;
@@ -493,30 +485,31 @@ static int as3645a_detect(struct as3645a *flash)
static int as3645a_parse_node(struct as3645a *flash,
struct as3645a_names *names,
- struct device_node *node)
+ struct fwnode_handle *fwnode)
{
struct as3645a_config *cfg = &flash->cfg;
- struct device_node *child;
+ struct fwnode_handle *child;
const char *name;
int rval;
- for_each_child_of_node(node, child) {
+ fwnode_for_each_child_node(fwnode, child) {
u32 id = 0;
- of_property_read_u32(child, "reg", &id);
+ fwnode_property_read_u32(child, "reg", &id);
switch (id) {
case AS_LED_FLASH:
- flash->flash_node = of_node_get(child);
+ flash->flash_node = child;
break;
case AS_LED_INDICATOR:
- flash->indicator_node = of_node_get(child);
+ flash->indicator_node = child;
break;
default:
dev_warn(&flash->client->dev,
"unknown LED %u encountered, ignoring\n", id);
break;
}
+ fwnode_handle_get(child);
}
if (!flash->flash_node) {
@@ -524,42 +517,46 @@ static int as3645a_parse_node(struct as3645a *flash,
return -ENODEV;
}
- rval = of_property_read_string(flash->flash_node, "label", &name);
- if (!rval)
+ rval = fwnode_property_read_string(flash->flash_node, "label", &name);
+ if (!rval) {
strlcpy(names->flash, name, sizeof(names->flash));
- else
+ } else if (is_of_node(fwnode)) {
snprintf(names->flash, sizeof(names->flash),
- "%pOFn:flash", node);
+ "%pOFn:flash", to_of_node(fwnode));
+ } else {
+ dev_err(&flash->client->dev, "flash node has no label!\n");
+ return -EINVAL;
+ }
- rval = of_property_read_u32(flash->flash_node, "flash-timeout-us",
- &cfg->flash_timeout_us);
+ rval = fwnode_property_read_u32(flash->flash_node, "flash-timeout-us",
+ &cfg->flash_timeout_us);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read flash-timeout-us property for flash\n");
goto out_err;
}
- rval = of_property_read_u32(flash->flash_node, "flash-max-microamp",
- &cfg->flash_max_ua);
+ rval = fwnode_property_read_u32(flash->flash_node, "flash-max-microamp",
+ &cfg->flash_max_ua);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read flash-max-microamp property for flash\n");
goto out_err;
}
- rval = of_property_read_u32(flash->flash_node, "led-max-microamp",
- &cfg->assist_max_ua);
+ rval = fwnode_property_read_u32(flash->flash_node, "led-max-microamp",
+ &cfg->assist_max_ua);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read led-max-microamp property for flash\n");
goto out_err;
}
- of_property_read_u32(flash->flash_node, "voltage-reference",
- &cfg->voltage_reference);
+ fwnode_property_read_u32(flash->flash_node, "voltage-reference",
+ &cfg->voltage_reference);
- of_property_read_u32(flash->flash_node, "ams,input-max-microamp",
- &cfg->peak);
+ fwnode_property_read_u32(flash->flash_node, "ams,input-max-microamp",
+ &cfg->peak);
cfg->peak = AS_PEAK_mA_TO_REG(cfg->peak);
if (!flash->indicator_node) {
@@ -568,15 +565,21 @@ static int as3645a_parse_node(struct as3645a *flash,
goto out_err;
}
- rval = of_property_read_string(flash->indicator_node, "label", &name);
- if (!rval)
+ rval = fwnode_property_read_string(flash->indicator_node, "label",
+ &name);
+ if (!rval) {
strlcpy(names->indicator, name, sizeof(names->indicator));
- else
+ } else if (is_of_node(fwnode)) {
snprintf(names->indicator, sizeof(names->indicator),
- "%pOFn:indicator", node);
+ "%pOFn:indicator", to_of_node(fwnode));
+ } else {
+ dev_err(&flash->client->dev, "indicator node has no label!\n");
+ return -EINVAL;
+ }
- rval = of_property_read_u32(flash->indicator_node, "led-max-microamp",
- &cfg->indicator_max_ua);
+ rval = fwnode_property_read_u32(flash->indicator_node,
+ "led-max-microamp",
+ &cfg->indicator_max_ua);
if (rval < 0) {
dev_err(&flash->client->dev,
"can't read led-max-microamp property for indicator\n");
@@ -586,8 +589,8 @@ static int as3645a_parse_node(struct as3645a *flash,
return 0;
out_err:
- of_node_put(flash->flash_node);
- of_node_put(flash->indicator_node);
+ fwnode_handle_put(flash->flash_node);
+ fwnode_handle_put(flash->indicator_node);
return rval;
}
@@ -668,14 +671,14 @@ static int as3645a_v4l2_setup(struct as3645a *flash)
strlcpy(cfgind.dev_name, flash->iled_cdev.name, sizeof(cfg.dev_name));
flash->vf = v4l2_flash_init(
- &flash->client->dev, of_fwnode_handle(flash->flash_node),
- &flash->fled, NULL, &cfg);
+ &flash->client->dev, flash->flash_node, &flash->fled, NULL,
+ &cfg);
if (IS_ERR(flash->vf))
return PTR_ERR(flash->vf);
flash->vfind = v4l2_flash_indicator_init(
- &flash->client->dev, of_fwnode_handle(flash->indicator_node),
- &flash->iled_cdev, &cfgind);
+ &flash->client->dev, flash->indicator_node, &flash->iled_cdev,
+ &cfgind);
if (IS_ERR(flash->vfind)) {
v4l2_flash_release(flash->vf);
return PTR_ERR(flash->vfind);
@@ -690,7 +693,7 @@ static int as3645a_probe(struct i2c_client *client)
struct as3645a *flash;
int rval;
- if (client->dev.of_node == NULL)
+ if (!dev_fwnode(&client->dev))
return -ENODEV;
flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL);
@@ -699,7 +702,7 @@ static int as3645a_probe(struct i2c_client *client)
flash->client = client;
- rval = as3645a_parse_node(flash, &names, client->dev.of_node);
+ rval = as3645a_parse_node(flash, &names, dev_fwnode(&client->dev));
if (rval < 0)
return rval;
@@ -731,8 +734,8 @@ out_mutex_destroy:
mutex_destroy(&flash->mutex);
out_put_nodes:
- of_node_put(flash->flash_node);
- of_node_put(flash->indicator_node);
+ fwnode_handle_put(flash->flash_node);
+ fwnode_handle_put(flash->indicator_node);
return rval;
}
@@ -751,8 +754,8 @@ static int as3645a_remove(struct i2c_client *client)
mutex_destroy(&flash->mutex);
- of_node_put(flash->flash_node);
- of_node_put(flash->indicator_node);
+ fwnode_handle_put(flash->flash_node);
+ fwnode_handle_put(flash->indicator_node);
return 0;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.