On 09/22, Jisheng Zhang wrote:
> + */
> +#include <linux/clk-provider.h>
> +#include <linux/io.h>
> +#include <linux/kernel.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/slab.h>
> +
> +#include "clk.h"
> +
> +#define CLK_SOURCE_MAX 5
> +
> +static struct clk_onecell_data gateclk_data;
> +static struct clk_onecell_data clk_data;
> +
> +static DEFINE_SPINLOCK(lock);
This is really generic. How about berlin4ct_lock? That will make
lockdep happy because the name for the key will have some
meaning.
> +static void __init berlin4ct_gateclk_setup(struct device_node *np)
> +{
> + int i, n, ret;
> + void __iomem *base;
> + struct clk **clks;
> +
> + base = of_iomap(np, 0);
> + if (WARN_ON(!base))
> + return;
> +
> + n = ARRAY_SIZE(berlin4ct_gates);
> + clks = kzalloc(n * sizeof(struct clk *), GFP_KERNEL);
kcalloc()
> + if (WARN_ON(!clks))
Same comment about dropping WARN_ON for an allocation failure.
> + return;
> +
> + for (i = 0; i < n; i++) {
> + clks[i] = clk_register_gate(NULL, berlin4ct_gates[i].name,
> + berlin4ct_gates[i].parent_name,
> + berlin4ct_gates[i].flags, base,
> + berlin4ct_gates[i].bit_idx, 0, &lock);
> + WARN_ON(IS_ERR(clks[i]));
> + }
> +
> + gateclk_data.clks = clks;
> + gateclk_data.clk_num = i;
> +
> + ret = of_clk_add_provider(np, of_clk_src_onecell_get,
> + &gateclk_data);
> + if (WARN_ON(ret))
> + return;
Drop that return please.
> +
> +}
> +CLK_OF_DECLARE(berlin4ct_gateclk, "marvell,berlin4ct-gateclk",
> + berlin4ct_gateclk_setup);
> +
> +static void __init berlin4ct_clk_setup(struct device_node *np)
> +{
> + int i, n, ret, num_parents;
> + void __iomem *base;
> + struct clk **clks;
> + const char *parent_names[CLK_SOURCE_MAX];
> +
> + num_parents = of_clk_get_parent_count(np);
> + if (num_parents <= 0 || num_parents > CLK_SOURCE_MAX)
> + return;
> +
> + of_clk_parent_fill(np, parent_names, num_parents);
> +
> + base = of_iomap(np, 0);
> + if (WARN_ON(!base))
> + return;
> +
> + n = ARRAY_SIZE(berlin4ct_descs);
> + clks = kzalloc(n * sizeof(struct clk *), GFP_KERNEL);
kcalloc()
> + if (WARN_ON(!clks))
Same comment about dropping WARN_ON for an allocation failure.
> + return;
> +
> + for (i = 0; i < n; i++) {
> + clks[i] = berlin_clk_register(berlin4ct_descs[i].name,
> + num_parents, parent_names,
> + berlin4ct_descs[i].flags,
> + base + berlin4ct_descs[i].offset);
> + WARN_ON(IS_ERR(clks[i]));
> + }
> +
> + clk_data.clks = clks;
> + clk_data.clk_num = i;
> +
> + ret = of_clk_add_provider(np, of_clk_src_onecell_get,
> + &clk_data);
> + if (WARN_ON(ret))
> + return;
Drop that return please.
--
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