[PATCH 4.9 070/157] mips: lantiq: add support for clk_set_parent()

[Greg Kroah-Hartman]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

[ Upstream commit 76f66dfd60dc5d2f9dec22d99091fea1035c5d03 ]

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

Fixes these build errors:

ERROR: modpost: "clk_set_parent" [sound/soc/jz4740/snd-soc-jz4740-i2s.ko] undefined!
ERROR: modpost: "clk_set_parent" [sound/soc/atmel/snd-soc-atmel-i2s.ko] undefined!

Fixes: 171bb2f19ed6 ("MIPS: Lantiq: Add initial support for Lantiq SoCs")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
--to=linux-mips@xxxxxxxxxxxxxxx --cc="John Crispin <john@xxxxxxxxxxx>" --cc="Jonathan Cameron <jic23@xxxxxxxxxx>" --cc="Russell King <linux@xxxxxxxxxxxxxxx>" --cc="Andy Shevchenko <andy.shevchenko@xxxxxxxxx>" --cc=alsa-devel@xxxxxxxxxxxxxxxx --to="Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>"
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/mips/lantiq/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index 149f0513c4f5d..d1de57b86683c 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -165,6 +165,12 @@ struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec)
 	return NULL;
 }
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;
-- 
2.34.1