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36aa27189a
Deleted upstream patches:
generic:
041-genirq-affinity-Make-affinity-setting-if-activated-o.patch
ipq806x:
093-5-v5.8-ipq806x-PCI-qcom-Define-some-PARF-params-needed-for-ipq8064-SoC.patch
093-6-v5.8-ipq806x-PCI-qcom-Add-support-for-tx-term-offset-for-rev-2_1_0.patch
Merged manually:
ipq806x:
093-4-v5.8-ipq806x-PCI-qcom-Use-bulk-clk-api-and-assert-on-error.patch
layerscape:
804-crypto-0016-MLKU-114-1-crypto-caam-reduce-page-0-regs-access-to-.patch
Build-tested: ath79/generic, ipq806x, layerscape/armv7, layerscape/armv8_64b
Run-tested: ipq806x (R7800)
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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@@ -1471,6 +1471,15 @@ 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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