From: Jon Hunter Date: Sat, 22 Sep 2012 08:24:15 +0000 (-0600) Subject: ARM: OMAP4: Add timer clock aliases for device-tree X-Git-Tag: omap-devel-late-for-v3.7^2~31^2~6 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fabcf41f3c1b29b4a4fccd321a18acfc05dc0aae;p=pandora-kernel.git ARM: OMAP4: Add timer clock aliases for device-tree For OMAP4, the dmtimers are located in the Wake-up, ABE and Peripheral (PER) power domains. Hence, when the dmtimer is configured to use the "timer_sys_ck" as its functional clock the actual clock used is different depending on whether the clock is in the Wake-up, ABE or PER domain. So when we look-up the dmtimer's "timer_sys_ck" we need to specify the timer device name as well as clock alias to find the right clock. Currently, the device names for the timers have the format "omap_timer.X" where X is the timer instance number. When using to device tree, the format of the device name created by device-tree is different and has the format "." (this is assuming that the device-tree "reg" property is specified). This causes the look-up for the OMAP4 "timer_sys_ck" to fail. To fix this add new timer clock alias for using device-tree. Please note that adding a 2nd set of clock aliases for the same clocks to only temporary until device-tree migration is complete. Then we can remove the legacy aliases. Hence, I have marked the legacy aliases with a "TODO" to remove them. Signed-off-by: Jon Hunter [paul@pwsan.com: updated to apply] Signed-off-by: Paul Walmsley --- Reading git-diff-tree failed