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clk: add common of_clk_init() function

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Modify of_clk_init function so that it will determine which
driver to initialize based on device tree instead of each driver
registering to it.

Based on a similar patch for drivers/irqchip by Thomas Petazzoni and
drivers/clocksource by Stephen Warren.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Tested-by: Tony Prisk <linux@prisktech.co.nz>
Tested-by: Pawel Moll <pawel.moll@arm.com>
Tested-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Josh Cartwright <josh.cartwright@ni.com>
Reviewed-by: Josh Cartwright <josh.cartwright@ni.com>
Acked-by: Maxime Ripard <maxime.ripard@anandra.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: merge conflict from missing CLKSRC_OF_TABLES()]

Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Prashant Gaikwad
2013-01-04 12:30:52 +05:30
committed by Mike Turquette
parent 4cfe54e579
commit f2f6c2556d
4 changed files with 26 additions and 0 deletions
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10
include/asm-generic/vmlinux.lds.h
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@@ -150,6 +150,15 @@
#endif
#ifdef CONFIG_COMMON_CLK
#define CLK_OF_TABLES() . = ALIGN(8); \
VMLINUX_SYMBOL(__clk_of_table) = .; \
*(__clk_of_table) \
*(__clk_of_table_end)
#else
#define CLK_OF_TABLES()
#endif
#define KERNEL_DTB() \
STRUCT_ALIGN(); \
VMLINUX_SYMBOL(__dtb_start) = .; \
@@ -493,6 +502,7 @@
DEV_DISCARD(init.rodata) \
CPU_DISCARD(init.rodata) \
MEM_DISCARD(init.rodata) \
CLK_OF_TABLES() \
KERNEL_DTB()
#define INIT_TEXT \