[PATCH linux dev-4.17 1/7] clk: Aspeed: Modify clk-aspeed.c driver probe sequence
Benjamin Herrenschmidt
benh at kernel.crashing.org
Wed Jul 11 15:47:56 AEST 2018
On Wed, 2018-07-11 at 13:17 +0800, Ryan Chen wrote:
> In Aspeed's SoC, all IP clk gating and pll parameter is in scu
> controller, before IP driver probe, scu driver need prepare for it.
> So buildin_platform_driver to core_initcall.
>
> Signed-off-by: Ryan Chen <ryanchen.aspeed at gmail.com>
> ---
> drivers/clk/clk-aspeed.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c
> index 8796b8a..9e55743 100644
> --- a/drivers/clk/clk-aspeed.c
> +++ b/drivers/clk/clk-aspeed.c
> @@ -573,7 +573,12 @@ static struct platform_driver aspeed_clk_driver = {
> .suppress_bind_attrs = true,
> },
> };
> -builtin_platform_driver(aspeed_clk_driver);
> +
> +static int __init aspeed_clk_init(void)
> +{
> + return platform_driver_register(&aspeed_clk_driver);
> +}
> +core_initcall(aspeed_clk_init);
>
> static void __init aspeed_ast2400_cc(struct regmap *map)
> {
It's generally considered dangerous to register drivers at core
initcall time.
Any reason we don't use the generic clock driver registration mechanism
that runs at of_clk_init() time ?
Cheers,
Ben.
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