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SubjectRe: [PATCH for 4.9 07/59] clk: sunxi-ng: set the parent rate when adjustin CPUX clock on A33
在 2017-09-14 23:51,Levin, Alexander (Sasha Levin) 写道:
> From: Icenowy Zheng <icenowy@aosc.xyz>
>
> [ Upstream commit bb021cda2ccf45ee9470bf0f8c55323ad1c761ae ]

As DVFS for A33 doesn't exist in 4.9, this patch doesn't affect 4.9
at all.

>
> The CPUX clock on A33, which is for the Cortex-A7 cores, is designed to
> be changeable by changing the rate of PLL_CPUX.
>
> Add CLK_SET_RATE_PARENT flag to this clock.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
> ---
> drivers/clk/sunxi-ng/ccu-sun8i-a33.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
> b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
> index 9bd1f78a0547..d54e5db3959a 100644
> --- a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
> +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
> @@ -170,7 +170,7 @@ static SUNXI_CCU_N_WITH_GATE_LOCK(pll_ddr1_clk,
> "pll-ddr1",
> static const char * const cpux_parents[] = { "osc32k", "osc24M",
> "pll-cpux" , "pll-cpux" };
> static SUNXI_CCU_MUX(cpux_clk, "cpux", cpux_parents,
> - 0x050, 16, 2, CLK_IS_CRITICAL);
> + 0x050, 16, 2, CLK_IS_CRITICAL | CLK_SET_RATE_PARENT);
>
> static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0);

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