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36 lines
1.3 KiB
Diff
36 lines
1.3 KiB
Diff
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From fb31b2f3ddb36a98cbb50ab07a5541d553e72e16 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Mon, 25 Apr 2022 17:45:16 +0200
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Subject: [PATCH] ARM: dts: bcm2835: Switch HSM clock to firmware
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When the bootloader boots without a display connected to the
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HDMI connector, it won't initialize the HSM clock.
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Then, when Linux boots, the default parent fetched by the clock
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framework will be the first parent for the HSM clock, which is "gnd".
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That clock is never registered, leading to the HSM clock being orphaned,
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which leads to other issues with the recent clock range handling.
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It's not clear what the proper solution would be, but the firmware
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clocks driver doesn't have that parenting issue and the clock rate is
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properly initialized for this clock whenever it hasn't been set by the
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bootloader.
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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arch/arm/boot/dts/bcm2835-common.dtsi | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/bcm2835-common.dtsi
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+++ b/arch/arm/boot/dts/bcm2835-common.dtsi
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@@ -129,7 +129,7 @@
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interrupts = <2 8>, <2 9>;
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ddc = <&i2c2>;
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clocks = <&firmware_clocks 9>,
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- <&clocks BCM2835_CLOCK_HSM>;
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+ <&firmware_clocks 13>;
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clock-names = "pixel", "hdmi";
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dmas = <&dma (17|(1<<27)|(1<<24))>;
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dma-names = "audio-rx";
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