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authorKevin Hilman <khilman@mvista.com>2009-01-27 19:13:38 -0700
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-08 17:50:28 +0000
commitaeec299011da8c3f07a47fe5d988f0eafda53906 (patch)
tree8661476adf90325972e5feab723f1272ab04fc6b /arch/arm/plat-omap/include/mach/clock.h
parentae8578c0194695bd37435249dfed720769a6bbf3 (diff)
[ARM] OMAP2: Implement CPUfreq frequency table based on PRCM table
This patch adds a CPUfreq frequency-table implementation for OMAP2 by walking the PRCM rate-table for available entries and adding them to a CPUfreq table. CPUfreq can then be used to manage switching between all the available entries in the PRCM rate table. Either use the CPUfreq sysfs interface directly, (see Section 3 of Documentation/cpu-freq/user-guide.txt) or use the cpufrequtils package: http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufrequtils.html Signed-off-by: Kevin Hilman <khilman@mvista.com> Updated to try to use cpufreq_table if it exists. linux-omap source commit is 77ce544fa48deb7a2003f454624e3ca10d37ab87. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-omap/include/mach/clock.h')
-rw-r--r--arch/arm/plat-omap/include/mach/clock.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h
index 6f49a333289..681c65105e2 100644
--- a/arch/arm/plat-omap/include/mach/clock.h
+++ b/arch/arm/plat-omap/include/mach/clock.h
@@ -121,6 +121,9 @@ extern void recalculate_root_clocks(void);
extern void followparent_recalc(struct clk *clk);
extern int clk_get_usecount(struct clk *clk);
extern void clk_enable_init_clocks(void);
+#ifdef CONFIG_CPU_FREQ
+extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
+#endif
extern const struct clkops clkops_null;