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authorDavid Brownell <david-b@pacbell.net>2008-02-22 17:23:23 -0800
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2008-03-04 13:41:23 +0100
commit2a341f5cf57dce9d89b41484a69e88adc6422f6c (patch)
tree3534a1f251749b64e7b53f5834800f182a6b4786 /drivers/clocksource
parent976dde010e513a9c7c3117a32b7b015f84b37430 (diff)
atmel_tc library
Create <linux/atmel_tc.h> based on <asm-arm/arch-at91/at91-tc.h> and the at91sam9263 and at32ap7000 datasheets. Most AT91 and AT32 SOCs have one or two of these TC blocks, which include three 16-bit timers that can be interconnected in various ways. These TC blocks can be used for external interfacing (such as PWM and measurement), or used as somewhat quirky sixteen-bit timers. Changes relative to the original version: * Drop unneeded inclusion of <linux/mutex.h> * Support an arbitrary number of TC blocks * Return a struct with information about a TC block from atmel_tc_alloc() instead of using a combination of return values and "out" parameters. * ioremap() the I/O registers on allocation * Look up clocks and irqs for all channels * Add "name" parameter to atmel_tc_alloc() and use this when requesting the iomem resource. * Check if the platform provided the necessary resources at probe() time instead of when the TCB is allocated. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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