[PATCH] clk: Fix k210_clk_set_parent() in k210 driver

* [PATCH] clk: Fix k210_clk_set_parent() in k210 driver
@ 2021-06-14  2:02 Damien Le Moal
  0 siblings, 0 replies; only message in thread
From: Damien Le Moal @ 2021-06-14  2:02 UTC (permalink / raw)
  To: Stephen Boyd, linux-clock; +Cc: stable

In k210_clk_set_parent(), add missing writel() call to update the mux
register of a clock to change its parent.

Fixes: c6ca7616f7d5 ("clk: Add RISC-V Canaan Kendryte K210 clock driver")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
---
 drivers/clk/clk-k210.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/clk-k210.c b/drivers/clk/clk-k210.c
index 6c84abf5b2e3..67a7cb3503c3 100644
--- a/drivers/clk/clk-k210.c
+++ b/drivers/clk/clk-k210.c
@@ -722,6 +722,7 @@ static int k210_clk_set_parent(struct clk_hw *hw, u8 index)
 		reg |= BIT(cfg->mux_bit);
 	else
 		reg &= ~BIT(cfg->mux_bit);
+	writel(reg, ksc->regs + cfg->mux_reg);
 	spin_unlock_irqrestore(&ksc->clk_lock, flags);
 
 	return 0;
-- 
2.31.1


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