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authorPaul Mundt <lethal@linux-sh.org>2008-10-15 22:03:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 11:21:39 -0700
commit0053dc0d13eb14108ebc48619456dd9ff6e25768 (patch)
treeb83bef18caede3cfa357ff771047685a31a50653 /drivers/parport/parport_amiga.c
parent0f4d3fd8ac76122675de900d67a470306647374b (diff)
rtc: rtc-rs5c372: SMBus conversion/support
rtc-rs5c372 presently depends on I2C master mode transfers, despite the fact that these RTCs frequently find themselves on SMBus-only adapters. Given that the only capabilities that were checked were for I2C_FUNC_I2C, it's assumed that most of the adapters that are currently using this driver are fairly sane, and are able to handle SMBus emulation (though we adjust the default capabilities to check for I2C_FUNC_SMBUS_EMUL anyways, which is the vast majority of them. The adapters that don't have their own ->smbus_xfer() fall back on the ->master_xfer() through the emulated transfer). The special case is iop3xx, which has more than its fair share of hacks within this driver, it remains untested -- though also claims to support emulated SMBus accesses. The corner case there is rs5c_get_regs() which uses access mode #3 for transferring the register state, while we use mode #1 for SMBus. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Acked-by: David Brownell <david-b@pacbell.net> Tested-by: Riku Voipio <riku.voipio@movial.fi> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/parport/parport_amiga.c')
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