linux-kernel - [PATCH] mips: lantiq: add support for clk_get

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Message-Id: <20211115012051.16302-1-rdunlap@infradead.org>
Date:   Sun, 14 Nov 2021 17:20:51 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Russell King <rmk+kernel@...linux.org.uk>,
        linux-mips@...r.kernel.org, John Crispin <john@...ozen.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Jonathan Cameron <jic23@...nel.org>, linux-iio@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH] mips: lantiq: add support for clk_get_parent()

Provide a simple implementation of clk_get_parent() in the
lantiq subarch so that callers of it will build without errors.

Fixes this build error:
ERROR: modpost: "clk_get_parent" [drivers/iio/adc/ingenic-adc.ko] undefined!

Fixes: 171bb2f19ed6 ("MIPS: Lantiq: Add initial support for Lantiq SoCs")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Suggested-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
Cc: linux-mips@...r.kernel.org
Cc: John Crispin <john@...ozen.org>
Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Jonathan Cameron <jic23@...nel.org>
Cc: linux-iio@...r.kernel.org
Cc: Russell King <linux@...linux.org.uk>
Cc: Andy Shevchenko <andy.shevchenko@...il.com>
---
 arch/mips/lantiq/clk.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- linux-next-20211112.orig/arch/mips/lantiq/clk.c
+++ linux-next-20211112/arch/mips/lantiq/clk.c
@@ -158,6 +158,12 @@ void clk_deactivate(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_deactivate);
 
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;