Quoting Jianxin Pan (2018-12-17 08:24:10)
> diff --git a/drivers/clk/meson/mmc-clkc.c b/drivers/clk/meson/mmc-clkc.c
> new file mode 100644
> index 0000000..2582a98
> --- /dev/null
> +++ b/drivers/clk/meson/mmc-clkc.c
> @@ -0,0 +1,304 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Amlogic Meson MMC Sub Clock Controller Driver
> + *
> + * Copyright (c) 2017 Baylibre SAS.
> + * Author: Jerome Brunet <[email protected]>
> + *
> + * Copyright (c) 2018 Amlogic, inc.
> + * Author: Yixun Lan <[email protected]>
> + * Author: Jianxin Pan <[email protected]>
> + */
> +
> +#include <linux/clk.h>
Do you need this include?
> +#include <linux/clk-provider.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +#include <linux/of_device.h>
> +#include <linux/mfd/syscon.h>
Is this used?
> +#include <linux/platform_device.h>
[...]
> + init.num_parents = 1;
> +
> + clk = mmc_clkc_register_clk(dev, map, &init, suffix, data);
> + if (IS_ERR(clk))
> + dev_err(dev, "%s clock registration failed\n", suffix);
> +
> + return clk;
> +}
> +
> +static int mmc_clkc_probe(struct platform_device *pdev)
> +{
> + struct clk_hw_onecell_data *onecell_data;
> + struct device *dev = &pdev->dev;
> + struct mmc_clkc_data *data;
> + struct regmap *map;
> + struct clk_regmap *clk, *core;
> + struct meson_sclk_div_data *div_data;
> +
> + /*cast to drop the const in match->data*/
> + data = (struct mmc_clkc_data *)of_device_get_match_data(dev);
Is that necessary? Maybe the users of this should take a const argument
and copy things?
> + if (!data)
> + return -ENODEV;
> +
> + map = syscon_node_to_regmap(dev->of_node);
> + if (IS_ERR(map)) {
> + dev_err(dev, "could not find mmc clock controller\n");
> + return PTR_ERR(map);
> + }
> +
> + onecell_data = devm_kzalloc(dev, sizeof(*onecell_data) +
> + sizeof(*onecell_data->hws) * MMC_MAX_CLKS,
struct_size()?
