Quoting Yixun Lan (2018-07-12 14:12:44)
> diff --git a/drivers/clk/meson/mmc-clkc.c b/drivers/clk/meson/mmc-clkc.c
> new file mode 100644
> index 000000000000..36c4c7cd69a6
> --- /dev/null
> +++ b/drivers/clk/meson/mmc-clkc.c
> @@ -0,0 +1,367 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Amlogic Meson MMC Sub Clock Controller Driver
> + *
> + * Copyright (c) 2017 Baylibre SAS.
> + * Author: Jerome Brunet <jbru...@baylibre.com>
> + *
> + * Copyright (c) 2018 Amlogic, inc.
> + * Author: Yixun Lan <yixun....@amlogic.com>
> + */
> +
> +#include <linux/clk.h>

Is this include used?

> +#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>
> +#include <linux/platform_device.h>
> +#include <dt-bindings/clock/amlogic,meson-mmc-clkc.h>
> +
> +#include "clkc.h"
> +
> +
> +static struct clk_regmap *
> +mmc_clkc_register_other_clk(struct device *dev, struct regmap *map,
> +                           char *suffix, char *parent_suffix,
> +                           unsigned long flags,
> +                           const struct clk_ops *ops, void *data)
> +{
> +       struct clk_init_data init;
> +       struct clk_regmap *clk;
> +       char *parent;
> +
> +       parent = kasprintf(GFP_KERNEL, "%s#%s", dev_name(dev), parent_suffix);
> +       if (!parent)
> +               return ERR_PTR(-ENOMEM);
> +
> +       init.ops = ops;
> +       init.flags = flags;
> +       init.parent_names = (const char* const []){ parent, };

Can't this just be &parent?

> +       init.num_parents = 1;
> +
> +       clk = mmc_clkc_register_clk(dev, map, &init, suffix, data);
> +       if (IS_ERR(clk))
> +               dev_err(dev, "Core %s clock registration failed\n", suffix);
> +
> +       kfree(parent);
> +       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 *mux, *div, *core, *rx, *tx;
> +
> +       data = (struct mmc_clkc_data *)of_device_get_match_data(dev);

This cast is unnecessary. Pleas remove.

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