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Commit 2e733b3f authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Support early clkdev allocations. 



early platform devices and the like may need to set up clock aliases,
which require an allocation at a time well before the slab allocators
are available. The clock framework comes up after bootmem, so using
bootmem as a fallback should be sufficient.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 51a5006a

arch/sh/kernel/clkdev.c

+10 −3
Original line number Diff line number Diff line
@@ -20,6 +20,9 @@ 
#include <linux/string.h>

#include <linux/mutex.h>

#include <linux/clk.h>

#include <linux/slab.h>

#include <linux/bootmem.h>

#include <linux/mm.h>

#include <asm/clock.h>

#include <asm/clkdev.h>
@@ -103,12 +106,16 @@ struct clk_lookup_alloc { 
	char	con_id[MAX_CON_ID];

};



struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,

	const char *dev_fmt, ...)

struct clk_lookup * __init_refok

clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...)

{

	struct clk_lookup_alloc *cla;



	if (!slab_is_available())

		cla = alloc_bootmem_low_pages(sizeof(*cla));

	else

		cla = kzalloc(sizeof(*cla), GFP_KERNEL);



	if (!cla)

		return NULL;