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The Meraki MR32 (BCM53016A1) uses the pwm to drive the tricolor LED. The driver has been available in upstream for a long time. Only the Device-Tree definition was missing, but it has been queued recently. Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
49 lines
1.3 KiB
Diff
49 lines
1.3 KiB
Diff
From 0ea4b29d149586667d96767f1fc8e57ee942c1b0 Mon Sep 17 00:00:00 2001
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From: Christian Lamparter <chunkeey@gmail.com>
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Date: Sat, 22 Aug 2020 18:19:19 +0200
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Subject: [PATCH] ARM: dts: BCM5301X: Specify PWM in the DT
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The BCM53016 in the Meraki MR32 uses the on-chip PWM
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controller to drive a tri-color RGB LED. Since I plan
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to use the PWM, I made a label for the pwm's pinmux
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node. This way, it can be easily referenced.... And
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Also included a label for the i2c since I'm going to
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need it in the future too.
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Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
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Acked-by: Scott Branden <scott.branden@broadcom.com>
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Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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--- a/arch/arm/boot/dts/bcm5301x.dtsi
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+++ b/arch/arm/boot/dts/bcm5301x.dtsi
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@@ -350,6 +350,14 @@
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};
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};
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+ pwm: pwm@18002000 {
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+ compatible = "brcm,iproc-pwm";
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+ reg = <0x18002000 0x28>;
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+ clocks = <&osc>;
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+ #pwm-cells = <3>;
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+ status = "disabled";
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+ };
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+
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mdio: mdio@18003000 {
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compatible = "brcm,iproc-mdio";
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reg = <0x18003000 0x8>;
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@@ -417,12 +425,12 @@
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function = "spi";
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};
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- i2c {
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+ pinmux_i2c: i2c {
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groups = "i2c_grp";
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function = "i2c";
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};
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- pwm {
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+ pinmux_pwm: pwm {
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groups = "pwm0_grp", "pwm1_grp",
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"pwm2_grp", "pwm3_grp";
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function = "pwm";
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