linux-kernel - [PATCH 5.7 101/244] clk: mvebu: ARMADA_AP_CPU_CLK needs to select ARMADA_AP_CP

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Date:   Mon, 20 Jul 2020 17:36:12 +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,
        Nathan Chancellor <natechancellor@...il.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 101/244] clk: mvebu: ARMADA_AP_CPU_CLK needs to select ARMADA_AP_CP_HELPER

From: Nathan Chancellor <natechancellor@...il.com>

[ Upstream commit 8e3709d7e3a67e2d3f42bd1fc2052353a5678944 ]

When building arm32 allmodconfig:

ld.lld: error: undefined symbol: ap_cp_unique_name
>>> referenced by ap-cpu-clk.c
>>>               clk/mvebu/ap-cpu-clk.o:(ap_cpu_clock_probe) in archive drivers/built-in.a

ap_cp_unique_name is only compiled into the kernel image when
CONFIG_ARMADA_AP_CP_HELPER is selected (as it is not user selectable).
However, CONFIG_ARMADA_AP_CPU_CLK does not select it.

This has been a problem since the driver was added to the kernel but it
was not built before commit c318ea261749 ("cpufreq: ap806: fix cpufreq
driver needs ap cpu clk") so it was never noticed.

Fixes: f756e362d938 ("clk: mvebu: add CPU clock driver for Armada 7K/8K")
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
Link: https://lore.kernel.org/r/20200701201128.2448427-1-natechancellor@gmail.com
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/mvebu/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/mvebu/Kconfig b/drivers/clk/mvebu/Kconfig
index ded07b0bd0d5e..557d6213783c7 100644
--- a/drivers/clk/mvebu/Kconfig
+++ b/drivers/clk/mvebu/Kconfig
@@ -42,6 +42,7 @@ config ARMADA_AP806_SYSCON
 
 config ARMADA_AP_CPU_CLK
 	bool
+	select ARMADA_AP_CP_HELPER
 
 config ARMADA_CP110_SYSCON
 	bool
-- 
2.25.1