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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 11:35:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 11:35:33 -0700
commit5223161dc0f5e44fbf3d5e42d23697b6796cdf4e (patch)
tree10837ec58d96e751469d78d347f76c0d49238d72 /Documentation/devicetree
parente5d0c874391a500be7643d3eef9fb07171eee129 (diff)
parent61abeba5222895d6900b13115f5d8eba7988d7d6 (diff)
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull led updates from Bryan Wu: "Sorry for the late pull request, since I'm just back from vacation. LED subsystem updates for 3.12: - pca9633 driver DT supporting and pca9634 chip supporting - restore legacy device attributes for lp5521 - other fixing and updates" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (28 commits) leds: wm831x-status: Request a REG resource leds: trigger: ledtrig-backlight: Fix invalid memory access in fb_event notification callback leds-pca963x: Fix device tree parsing leds-pca9633: Rename to leds-pca963x leds-pca9633: Add mutex to the ledout register leds-pca9633: Unique naming of the LEDs leds-pca9633: Add support for PCA9634 leds: lp5562: use LP55xx common macros for device attributes Documentation: leds-lp5521,lp5523: update device attribute information leds: lp5523: remove unnecessary writing commands leds: lp5523: restore legacy device attributes leds: lp5523: LED MUX configuration on initializing leds: lp5523: make separate API for loading engine leds: lp5521: remove unnecessary writing commands leds: lp5521: restore legacy device attributes leds: lp55xx: add common macros for device attributes leds: lp55xx: add common data structure for program Documentation: leds: Fix a typo leds: ss4200: Fix incorrect placement of __initdata leds: clevo-mail: Fix incorrect placement of __initdata ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/leds/leds-lp55xx.txt72
-rw-r--r--Documentation/devicetree/bindings/leds/pca963x.txt47
2 files changed, 118 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
index d5176882d8b9..a61727f9a6d1 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
@@ -1,7 +1,7 @@
Binding for TI/National Semiconductor LP55xx Led Drivers
Required properties:
-- compatible: "national,lp5521" or "national,lp5523" or "ti,lp5562"
+- compatible: "national,lp5521" or "national,lp5523" or "ti,lp5562" or "ti,lp8501"
- reg: I2C slave address
- clock-mode: Input clock mode, (0: automode, 1: internal, 2: external)
@@ -11,6 +11,11 @@ Each child has own specific current settings
Optional properties:
- label: Used for naming LEDs
+- pwr-sel: LP8501 specific property. Power selection for output channels.
+ 0: D1~9 are connected to VDD
+ 1: D1~6 with VDD, D7~9 with VOUT
+ 2: D1~6 with VOUT, D7~9 with VDD
+ 3: D1~9 are connected to VOUT
Alternatively, each child can have specific channel name
- chan-name: Name of each channel name
@@ -145,3 +150,68 @@ lp5562@30 {
max-cur = /bits/ 8 <0x60>;
};
};
+
+example 4) LP8501
+9 channels are defined. The 'pwr-sel' is LP8501 specific property.
+Others are same as LP5523.
+
+lp8501@32 {
+ compatible = "ti,lp8501";
+ reg = <0x32>;
+ clock-mode = /bits/ 8 <2>;
+ pwr-sel = /bits/ 8 <3>; /* D1~9 connected to VOUT */
+
+ chan0 {
+ chan-name = "d1";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan1 {
+ chan-name = "d2";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan2 {
+ chan-name = "d3";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan3 {
+ chan-name = "d4";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan4 {
+ chan-name = "d5";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan5 {
+ chan-name = "d6";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan6 {
+ chan-name = "d7";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan7 {
+ chan-name = "d8";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ chan8 {
+ chan-name = "d9";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/leds/pca963x.txt b/Documentation/devicetree/bindings/leds/pca963x.txt
new file mode 100644
index 000000000000..aece3eac1b63
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/pca963x.txt
@@ -0,0 +1,47 @@
+LEDs connected to pca9632, pca9633 or pca9634
+
+Required properties:
+- compatible : should be : "nxp,pca9632", "nxp,pca9633" or "nxp,pca9634"
+
+Optional properties:
+- nxp,totem-pole : use totem pole (push-pull) instead of default open-drain
+- nxp,hw-blink : use hardware blinking instead of software blinking
+
+Each led is represented as a sub-node of the nxp,pca963x device.
+
+LED sub-node properties:
+- label : (optional) see Documentation/devicetree/bindings/leds/common.txt
+- reg : number of LED line (could be from 0 to 3 in pca9632 or pca9633
+ or 0 to 7 in pca9634)
+- linux,default-trigger : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Examples:
+
+pca9632: pca9632 {
+ compatible = "nxp,pca9632";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x62>;
+
+ red@0 {
+ label = "red";
+ reg = <0>;
+ linux,default-trigger = "none";
+ };
+ green@1 {
+ label = "green";
+ reg = <1>;
+ linux,default-trigger = "none";
+ };
+ blue@2 {
+ label = "blue";
+ reg = <2>;
+ linux,default-trigger = "none";
+ };
+ unused@3 {
+ label = "unused";
+ reg = <3>;
+ linux,default-trigger = "none";
+ };
+};