From: Quentin Schulz quentin.schulz@theobroma-systems.com
commit 933bf364e152cd60902cf9585c2ba310d593e69f upstream.
clk_cifout is derived from clk_cifout_src through an integer divider limited to 32. clk_cifout_src is a child of either cpll, gpll or npll without any possibility of a divider of any sort. The default clock parent is cpll.
Let's allow clk_cifout to ask its parent clk_cifout_src to reparent in order to find the real closest possible rate for clk_cifout and not one derived from cpll only.
Cc: stable@vger.kernel.org # 4.10+ Fixes: fd8bc829336a ("clk: rockchip: fix the rk3399 cifout clock") Signed-off-by: Quentin Schulz quentin.schulz@theobroma-systems.com Link: https://lore.kernel.org/r/20221117-rk3399-cifout-set-rate-parent-v1-0-432548... Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clk/rockchip/clk-rk3399.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/clk/rockchip/clk-rk3399.c +++ b/drivers/clk/rockchip/clk-rk3399.c @@ -1263,7 +1263,7 @@ static struct rockchip_clk_branch rk3399 RK3399_CLKSEL_CON(56), 6, 2, MFLAGS, RK3399_CLKGATE_CON(10), 7, GFLAGS),
- COMPOSITE_NOGATE(SCLK_CIF_OUT, "clk_cifout", mux_clk_cif_p, 0, + COMPOSITE_NOGATE(SCLK_CIF_OUT, "clk_cifout", mux_clk_cif_p, CLK_SET_RATE_PARENT, RK3399_CLKSEL_CON(56), 5, 1, MFLAGS, 0, 5, DFLAGS),
/* gic */