On Mon 12 Jun 2023 at 11:57, Neil Armstrong <neil.armstrong@xxxxxxxxxx> wrote:
> Let's introduce a new module called meson-clkc-utils that
> will contain shared utility functions for all Amlogic clock
> controller drivers.
>
> The first utility function is a replacement of of_clk_hw_onecell_get
> in order to get rid of the NR_CLKS define in all Amlogic clock
> drivers.
>
> The goal is to move all duplicate probe and init code in this module.
>
> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Hi Neil,
checkpatch complains about the MODULE_LICENSE()
WARNING: Prefer "GPL" over "GPL v2" - see commit bf7fbeeae6db ("module: Cure the MODULE_LICENSE "GPL" vs. "GPL v2" bogosity")
#185: FILE: drivers/clk/meson/meson-clkc-utils.c:25:
+MODULE_LICENSE("GPL v2");
I don't mind fixing this up while applying if it is Ok with you.
> ---
> drivers/clk/meson/Kconfig | 3 +++
> drivers/clk/meson/Makefile | 1 +
> drivers/clk/meson/meson-clkc-utils.c | 25 +++++++++++++++++++++++++
> drivers/clk/meson/meson-clkc-utils.h | 19 +++++++++++++++++++
> 4 files changed, 48 insertions(+)
>
> diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
> index 8ce846fdbe43..d03adad31318 100644
> --- a/drivers/clk/meson/Kconfig
> +++ b/drivers/clk/meson/Kconfig
> @@ -30,6 +30,9 @@ config COMMON_CLK_MESON_VID_PLL_DIV
> tristate
> select COMMON_CLK_MESON_REGMAP
>
> +config COMMON_CLK_MESON_CLKC_UTILS
> + tristate
> +
> config COMMON_CLK_MESON_AO_CLKC
> tristate
> select COMMON_CLK_MESON_REGMAP
> diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
> index d5288662881d..cd961cc4f4db 100644
> --- a/drivers/clk/meson/Makefile
> +++ b/drivers/clk/meson/Makefile
> @@ -1,6 +1,7 @@
> # SPDX-License-Identifier: GPL-2.0-only
> # Amlogic clock drivers
>
> +obj-$(CONFIG_COMMON_CLK_MESON_CLKC_UTILS) += meson-clkc-utils.o
> obj-$(CONFIG_COMMON_CLK_MESON_AO_CLKC) += meson-aoclk.o
> obj-$(CONFIG_COMMON_CLK_MESON_CPU_DYNDIV) += clk-cpu-dyndiv.o
> obj-$(CONFIG_COMMON_CLK_MESON_DUALDIV) += clk-dualdiv.o
> diff --git a/drivers/clk/meson/meson-clkc-utils.c b/drivers/clk/meson/meson-clkc-utils.c
> new file mode 100644
> index 000000000000..9a0620bcc161
> --- /dev/null
> +++ b/drivers/clk/meson/meson-clkc-utils.c
> @@ -0,0 +1,25 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (c) 2023 Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> + */
> +
> +#include <linux/of_device.h>
> +#include <linux/clk-provider.h>
> +#include <linux/module.h>
> +#include "meson-clkc-utils.h"
> +
> +struct clk_hw *meson_clk_hw_get(struct of_phandle_args *clkspec, void *clk_hw_data)
> +{
> + const struct meson_clk_hw_data *data = clk_hw_data;
> + unsigned int idx = clkspec->args[0];
> +
> + if (idx >= data->num) {
> + pr_err("%s: invalid index %u\n", __func__, idx);
> + return ERR_PTR(-EINVAL);
> + }
> +
> + return data->hws[idx];
> +}
> +EXPORT_SYMBOL_GPL(meson_clk_hw_get);
> +
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/clk/meson/meson-clkc-utils.h b/drivers/clk/meson/meson-clkc-utils.h
> new file mode 100644
> index 000000000000..fe6f40728949
> --- /dev/null
> +++ b/drivers/clk/meson/meson-clkc-utils.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
> +/*
> + * Copyright (c) 2023 Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> + */
> +
> +#ifndef __MESON_CLKC_UTILS_H__
> +#define __MESON_CLKC_UTILS_H__
> +
> +#include <linux/of_device.h>
> +#include <linux/clk-provider.h>
> +
> +struct meson_clk_hw_data {
> + struct clk_hw **hws;
> + unsigned int num;
> +};
> +
> +struct clk_hw *meson_clk_hw_get(struct of_phandle_args *clkspec, void *clk_hw_data);
> +
> +#endif
