From: Damien Le Moal <damien.lemoal@xxxxxxx>
commit faa0e307948594b4379a86fff7fb2409067aed6f upstream.
In k210_clk_set_parent(), add missing writel() call to update the mux
register of a clock to change its parent. This also fixes a compilation
warning with clang when compiling with W=1.
Fixes: c6ca7616f7d5 ("clk: Add RISC-V Canaan Kendryte K210 clock driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx>
Link: https://lore.kernel.org/r/20210622064502.14841-1-damien.lemoal@xxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/clk-k210.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/clk/clk-k210.c
+++ b/drivers/clk/clk-k210.c
@@ -722,6 +722,7 @@ static int k210_clk_set_parent(struct cl
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;
