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b4c02c9998
Removed upstreamed patches: generic/pending-5.4 445-mtd-spinand-gigadevice-Only-one-dummy-byte-in-QUA.patch 446-mtd-spinand-gigadevice-Add-QE-Bit.patch pistachio/patches-5.4 150-pwm-img-Fix-null-pointer-access-in-probe.patch Manually rebased: layerscape/patches-5.4 801-audio-0011-Revert-ASoC-fsl_sai-add-of_match-data.patch 801-audio-0039-MLK-16224-6-ASoC-fsl_sai-fix-DSD-suspend-resume.patch 801-audio-0073-MLK-21957-3-ASoC-fsl_sai-add-bitcount-and-timestamp-.patch 820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch All modifications made by update_kernel.sh Build system: x86_64 Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711, mvebu (mamba, rango), x86_64, ramips/mt7621 Run-tested: ipq806x/R7800, mvebu (mamba, rango), x86_64, ramips (RT-AC57U) No dmesg regressions, everything functional Signed-off-by: John Audia <graysky@archlinux.us> [alter 820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 9eeebf9e7bb7a25a81f72c0e21793614fab49ec4 Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Mon, 9 May 2016 17:28:18 -0700
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Subject: [PATCH] clk: bcm2835: Mark GPIO clocks enabled at boot as
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critical.
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These divide off of PLLD_PER and are used for the ethernet and wifi
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PHYs source PLLs. Neither of them is currently represented by a phy
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device that would grab the clock for us.
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This keeps other drivers from killing the networking PHYs when they
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disable their own clocks and trigger PLLD_PER's refcount going to 0.
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v2: Skip marking as critical if they aren't on at boot.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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---
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drivers/clk/bcm/clk-bcm2835.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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--- a/drivers/clk/bcm/clk-bcm2835.c
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+++ b/drivers/clk/bcm/clk-bcm2835.c
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@@ -1473,6 +1473,15 @@ static struct clk_hw *bcm2835_register_c
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init.flags = data->flags | CLK_IGNORE_UNUSED;
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/*
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+ * Some GPIO clocks for ethernet/wifi PLLs are marked as
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+ * critical (since some platforms use them), but if the
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+ * firmware didn't have them turned on then they clearly
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+ * aren't actually critical.
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+ */
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+ if ((cprman_read(cprman, data->ctl_reg) & CM_ENABLE) == 0)
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+ init.flags &= ~CLK_IS_CRITICAL;
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+
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+ /*
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* Pass the CLK_SET_RATE_PARENT flag if we are allowed to propagate
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* rate changes on at least of the parents.
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*/
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