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authorAndrew Lunn <andrew@lunn.ch>2012-07-22 12:51:35 +0200
committerWolfram Sang <w.sang@pengutronix.de>2012-07-23 22:04:11 +0200
commitb61d15758941166b9cac41b87751dea21978bebc (patch)
tree3d627f2a324b39bc9e3e9656adddf49ca6be658a /firmware/cis
parent6f535b94261b16343cfbc4576a941bd7901b96e1 (diff)
downloadop-kernel-dev-b61d15758941166b9cac41b87751dea21978bebc.zip
op-kernel-dev-b61d15758941166b9cac41b87751dea21978bebc.tar.gz
I2C: MV64XYZ: Add Device Tree support
Extends the driver to get properties from device tree. Rather than pass the N & M factors in DT, use the more standard clock-frequency property. Calculate N & M at run time. In order to do this, we need to know tclk. So the driver uses clk_get() etc in order to get the clock and clk_get_rate() to determine the tclk rate. Not all platforms however have CLK, so some #ifdefery is needed to ensure the driver still compiles when CLK is not available. Signed-off-by: Andrew Lunn <andrew@lunn.ch> [wsa: converted some ints to u32 to match signedness] Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
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