[4.19,291/323] mips: bcm63xx: add support for clk_get_parent()

Commit Message

Greg KH Nov. 24, 2021, 11:58 a.m. UTC

From: Randy Dunlap <[e-mail]>

[ Upstream commit e8f67482e5a4bc8d0b65d606d08cb60ee123b468 ]

BCM63XX selects HAVE_LEGACY_CLK but does not provide/support
clk_get_parent(), so add a simple implementation of that
function so that callers of it will build without errors.

Fixes these build errors:

mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4770_adc_init_clk_div':
ingenic-adc.c:(.text+0xe4): undefined reference to `clk_get_parent'
mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4725b_adc_init_clk_div':
ingenic-adc.c:(.text+0x1b8): undefined reference to `clk_get_parent'

Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs." )
Signed-off-by: Randy Dunlap <[e-mail]>
Reported-by: kernel test robot <[e-mail]>
Suggested-by: Russell King (Oracle) <[e-mail]>
Cc: Artur Rojek <[e-mail]>
Cc: Paul Cercueil <[e-mail]>
Cc: [e-mail]
Cc: Jonathan Cameron <[e-mail]>
Cc: Lars-Peter Clausen <[e-mail]>
Cc: [e-mail]
Cc: Florian Fainelli <[e-mail]>
Cc: Andy Shevchenko <[e-mail]>
Cc: Russell King <[e-mail]>
Cc: [e-mail]
Cc: Jonas Gorski <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Acked-by: Jonathan Cameron <[e-mail]>
Acked-by: Russell King (Oracle) <[e-mail]>
Acked-by: Florian Fainelli <[e-mail]>
Signed-off-by: Thomas Bogendoerfer <[e-mail]>
Signed-off-by: Sasha Levin <[e-mail]>
---
 arch/mips/bcm63xx/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

Patch

diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index 164115944a7fd..aba6e2d6a736c 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -381,6 +381,12 @@  void clk_disable(struct clk *clk)
 
 EXPORT_SYMBOL(clk_disable);
 
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 unsigned long clk_get_rate(struct clk *clk)
 {
 	if (!clk)