Re: [PATCH V2] clk: qcom: ipq5332: mark GPLL4 as critical temporarily

From: Stephen Boyd
Date: Fri Feb 10 2023 - 17:14:56 EST


Quoting Kathiravan T (2023-02-05 23:31:01)
> diff --git a/drivers/clk/qcom/gcc-ipq5332.c b/drivers/clk/qcom/gcc-ipq5332.c
> index c8a5fa1bafca..2e043d2d0598 100644
> --- a/drivers/clk/qcom/gcc-ipq5332.c
> +++ b/drivers/clk/qcom/gcc-ipq5332.c
> @@ -127,6 +127,16 @@ static struct clk_alpha_pll gpll4_main = {
> .parent_data = &gcc_parent_data_xo,
> .num_parents = 1,
> .ops = &clk_alpha_pll_stromer_ops,
> + /*
> + * There are no consumers for this GPLL in kernel yet,
> + * (will be added soon), so the clock framework
> + * disables this source. But some of the clocks
> + * initialized by boot loaders uses this source. So we
> + * need to keep this clock ON. Add the CRITICAL flag
> + * so the clock will not be disabled. Once the consumer
> + * in kernel is added, we can get rid off this flag.

s/off/of/

Does CLK_IGNORE_UNUSED work the same? It doesn't sound like a critical
clk from the description of the comment.

> + */
> + .flags = CLK_IS_CRITICAL,
> },
> },