Thanks Bjorn,
On 27/03/16 06:50, Bjorn Andersson wrote:
On Wed 23 Mar 12:48 PDT 2016, Srinivas Kandagatla wrote:
This patch adds support to 4 user leds, wlan and bt led on board.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
I'm not fond of the overly complicated names; and I think it should at
least be shortened to "db600c:...".
I agree, I will fix this in next version.
Tested this on my DB600c, seems to work, except the WiFi/BT triggers,
see comments below.
+ leds {
+ pinctrl-names = "default";
+ pinctrl-0 = <&user_leds>, <&mpp_leds>;
+
+ compatible = "gpio-leds";
+
+ led@1 {
+ label = "dragonboard-600c:green:user1";
+ gpios = <&tlmm_pinmux 3 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ default-state = "off";
+ };
+
+ led@2 {
+ label = "dragonboard-600c:green:user2";
+ gpios = <&tlmm_pinmux 7 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc0";
+ default-state = "off";
+ };
+
+ led@3 {
+ label = "dragonboard-600c:green:user3";
+ gpios = <&tlmm_pinmux 10 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc1";
+ default-state = "off";
+ };
+
+ led@4 {
+ label = "apq8016-sbc:green:user4";
+ gpios = <&tlmm_pinmux 11 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "none";
+ default-state = "off";
+ };
+
+ led@5 {
+ label = "dragonboard-600c:yellow:wlan";
+ gpios = <&pm8921_mpps 7 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "wlan";
This should either be "phy0rx", "phy0tx", "phy0assoc" or "phy0radio". TX
does not seem to work, so this should be debugged; "assoc" is probably
the one that makes most sense.
Am ok, to change, did you get activity leds works with any of these
strings with WLAN or BT?
phy0rx/tx seems to be bit more generic and atleast the name looks bit
non-specific to wlan.
These names should be documented somewhere, Its very difficult to find
which names to use unless you read the code.
It would be nice to just provide a phandle to the device which
led-trigger should use, which makes it clear and explicit.
+ default-state = "off";
+ };
+
+ led@6 {
+ label = "dragonboard-600c:blue:bt";
+ gpios = <&pm8921_mpps 8 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "bt";
This should be "hci0-power".
Does this trigger work for you?
Name is bit misleading though.
Thanks,
srini
+ default-state = "off";
+ };
+ };
+
Regards,
Bjorn
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