linux-kernel - [PATCH 5.19 462/717] clk: qcom: apss-ipq6018: mark apcs_alias0_core

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Message-Id: <20221022072518.732027452@linuxfoundation.org>
Date:   Sat, 22 Oct 2022 09:25:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Robert Marko <robimarko@...il.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 462/717] clk: qcom: apss-ipq6018: mark apcs_alias0_core_clk as critical

From: Robert Marko <robimarko@...il.com>

[ Upstream commit 86e78995c93ee182433f965babfccd48417d4dcf ]

While fixing up the driver I noticed that my IPQ8074 board was hanging
after CPUFreq switched the frequency during boot, WDT would eventually
reset it.

So mark apcs_alias0_core_clk as critical since its the clock feeding the
CPU cluster and must never be disabled.

Fixes: 5e77b4ef1b19 ("clk: qcom: Add ipq6018 apss clock controller")
Signed-off-by: Robert Marko <robimarko@...il.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Bjorn Andersson <andersson@...nel.org>
Link: https://lore.kernel.org/r/20220818220628.339366-3-robimarko@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/qcom/apss-ipq6018.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/qcom/apss-ipq6018.c
+++ b/drivers/clk/qcom/apss-ipq6018.c
@@ -57,7 +57,7 @@ static struct clk_branch apcs_alias0_cor
 			.parent_hws = (const struct clk_hw *[]){
 				&apcs_alias0_clk_src.clkr.hw },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},