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authorSakari Ailus <sakari.ailus@linux.intel.com>2017-09-22 11:32:37 +0200
committerJacek Anaszewski <jacek.anaszewski@gmail.com>2017-09-23 21:17:12 +0200
commite626c325277531db15314b80610d1f5a1c2637b2 (patch)
treef07354c897d270cda38e34df2e602f47e49097be /drivers/leds
parentdt: bindings: as3645a: Use LED number to refer to LEDs (diff)
downloadlinux-e626c325277531db15314b80610d1f5a1c2637b2.tar.xz
linux-e626c325277531db15314b80610d1f5a1c2637b2.zip
as3645a: Use integer numbers for parsing LEDs
Use integer numbers for LEDs, 0 is the flash and 1 is the indicator. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-as3645a.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index e3f89c6130d2..605e0c64e974 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -112,6 +112,10 @@
#define AS_PEAK_mA_TO_REG(a) \
((min_t(u32, AS_PEAK_mA_MAX, a) - 1250) / 250)
+/* LED numbers for Devicetree */
+#define AS_LED_FLASH 0
+#define AS_LED_INDICATOR 1
+
enum as_mode {
AS_MODE_EXT_TORCH = 0 << AS_CONTROL_MODE_SETTING_SHIFT,
AS_MODE_INDICATOR = 1 << AS_CONTROL_MODE_SETTING_SHIFT,
@@ -491,10 +495,29 @@ static int as3645a_parse_node(struct as3645a *flash,
struct device_node *node)
{
struct as3645a_config *cfg = &flash->cfg;
+ struct device_node *child;
const char *name;
int rval;
- flash->flash_node = of_get_child_by_name(node, "flash");
+ for_each_child_of_node(node, child) {
+ u32 id = 0;
+
+ of_property_read_u32(child, "reg", &id);
+
+ switch (id) {
+ case AS_LED_FLASH:
+ flash->flash_node = of_node_get(child);
+ break;
+ case AS_LED_INDICATOR:
+ flash->indicator_node = of_node_get(child);
+ break;
+ default:
+ dev_warn(&flash->client->dev,
+ "unknown LED %u encountered, ignoring\n", id);
+ break;
+ }
+ }
+
if (!flash->flash_node) {
dev_err(&flash->client->dev, "can't find flash node\n");
return -ENODEV;
@@ -538,7 +561,6 @@ static int as3645a_parse_node(struct as3645a *flash,
&cfg->peak);
cfg->peak = AS_PEAK_mA_TO_REG(cfg->peak);
- flash->indicator_node = of_get_child_by_name(node, "indicator");
if (!flash->indicator_node) {
dev_warn(&flash->client->dev,
"can't find indicator node\n");