On Fri, Dec 22, 2023 at 10:54 AM Peter Griffin <peter.griffin@xxxxxxxxxx> wrote:
>
> Update cmu_misc so it is registered early, as it contains
> the gate which clocks the Multi Core Timer (MCT). This clock
> is required early in boot, otherwise exynos_mct will fail
> obtaining the clock.
>
> Note this wasn't previously an issue as exynos_mct wasn't
> enabled.
>
> Signed-off-by: Peter Griffin <peter.griffin@xxxxxxxxxx>
> ---
Reviewed-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx>
> drivers/clk/samsung/clk-gs101.c | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/clk/samsung/clk-gs101.c b/drivers/clk/samsung/clk-gs101.c
> index 0964bb11657f..590119a25c18 100644
> --- a/drivers/clk/samsung/clk-gs101.c
> +++ b/drivers/clk/samsung/clk-gs101.c
> @@ -2478,6 +2478,15 @@ static const struct samsung_cmu_info misc_cmu_info __initconst = {
> .clk_name = "dout_cmu_misc_bus",
> };
>
> +static void __init gs101_cmu_misc_init(struct device_node *np)
> +{
> + exynos_arm64_register_cmu(NULL, np, &misc_cmu_info);
> +}
> +
> +/* Register CMU_MISC early, as it's needed for MCT timer */
> +CLK_OF_DECLARE(gs101_cmu_misc, "google,gs101-cmu-misc",
> + gs101_cmu_misc_init);
> +
> /* ---- platform_driver ----------------------------------------------------- */
>
> static int __init gs101_cmu_probe(struct platform_device *pdev)
> @@ -2495,9 +2504,6 @@ static const struct of_device_id gs101_cmu_of_match[] = {
> {
> .compatible = "google,gs101-cmu-apm",
> .data = &apm_cmu_info,
> - }, {
> - .compatible = "google,gs101-cmu-misc",
> - .data = &misc_cmu_info,
> }, {
> },
> };
> --
> 2.43.0.472.g3155946c3a-goog
>
