Thread (15 messages) 15 messages, 5 authors, 2021-04-25

Re: [PATCH v3 2/2] rockchip: rk3399: Add support for FriendlyARM NanoPi R4S

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2021-03-15 18:14:49
Also in: linux-devicetree, linux-rockchip, lkml

Hi Heiko,

On Mon, Mar 15, 2021 at 5:52 PM Heiko Stübner [off-list ref] wrote:
Am Montag, 15. März 2021, 17:38:37 CET schrieb Geert Uytterhoeven:
quoted
On Mon, Mar 15, 2021 at 5:32 PM Robin Murphy [off-list ref] wrote:
quoted
On 2021-03-13 13:22, CN_SZTL wrote:
quoted
Robin Murphy [off-list ref] 于2021年3月13日周六 下午7:55写道:
quoted
On 2021-03-13 03:25, Tianling Shen wrote:
quoted
+     gpio-leds {
+             compatible = "gpio-leds";
+             pinctrl-0 = <&lan_led_pin>, <&sys_led_pin>, <&wan_led_pin>;
+             pinctrl-names = "default";
+
+             lan_led: led-0 {
+                     gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
+                     label = "nanopi-r4s:green:lan";
+             };
+
+             sys_led: led-1 {
+                     gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
+                     label = "nanopi-r4s:red:sys";
+                     default-state = "on";
+             };
+
+             wan_led: led-2 {
+                     gpios = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
+                     label = "nanopi-r4s:green:wan";
+             };
Nit: (apologies for overlooking it before) there isn't an obvious
definitive order for the LEDs, but the order here is certainly not
consistent with anything. The most logical would probably be sys, wan,
Looks like alphabetical sort order to me ;-)
yep ... led-0, led-1, led-2 looks pretty sorted ;-)
Actually I had "lan, sys, wan" in mind ;-)
Generally I'd prefer sorting by node-names ... especially as the phandle
is sort of optional for most things - and they sometimes come and go
in dt-files.
The node names are sorted, too, as you've just pointed out...

Personally, I'm not so fond of the <foo>-%u node names, and prefer
<foo>-<function>.  With the former, it's way too easy to have a silent
override in your .dts(i) stack.
Cfr. commit 45f5d5a9e34d3fe4 ("arm64: dts: renesas: r8a77995: draak:
Fix backlight regulator name")

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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