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authorNaveen Krishna Ch <ch.naveen@samsung.com>2013-11-26 04:22:46 (GMT)
committerWolfram Sang <wsa@the-dreams.de>2014-01-03 16:40:37 (GMT)
commit61f4d6b42158a836a008711a71b68cc78b0624aa (patch)
tree980b9746c04ec3e4b59b9a39c6431eb0df9622e4 /tools
parent117053f77a5a4d055ec4fc7b4f6639045a24fefd (diff)
downloadlinux-61f4d6b42158a836a008711a71b68cc78b0624aa.tar.xz
i2c: s3c2410: dont need CPU_FREQ transitions for exynos series
For Exynos4 and Exynos5 SoCs from Samsung the i2c clock is based on a fixed 66 MHz peripheral clock, and therefore is completely independent of the cpu frequency. Thus, registering for a CPU freq notifier is very wasteful. This patch modifes the code such that, i2c bus registers to cpu_freq_transition only if CONFIG_CPU_FREQ_S3C24XX is enabled. This change should save a bunch of cpufreq transitions calls which does not apply to exynos SoCs. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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