On Wed, Feb 05, 2014 at 02:05:02PM +0100, Maxime Ripard wrote: > Hi everyone, > > This patchset brings support for the SPI controller found in the > Allwinner A31 SoC. > > Even though the controller supports DMA, the driver only supports PIO > mode for now. This driver will be used to bring up and test DMA on the > SoC, so support for the DMA will come eventually. > > It doesn't support transfer larger than the FIFO size (128 bytes) for > now, I expect it to be fixed in the future. > > Thanks! > Maxime > > Changes from v3: > - Rebased on top of 3.14-rc1 > - Removed the dependency on devm_spi_alloc_master > - Modified the pm_runtime code according to reviews > > Changes from v2: > - Removed the select on runtime_pm > - Fixed the clock error messages > - Trigger the CS manually, and honour the enable bit in set_cs > - Convert to devm_* functions > - Remove useless clk_disable_unprepare in probe > > Changes from v1: > - Switched to using the transfer_one and set_cs callbacks > - Switched to using runtime_pm > - Report an error when we try to do a transfer larger than the FIFO > size, instead of silently timeouting. > - Added a Kconfig symbol > - Move the clock ratio change at transfer time > - Fixed the PLL6 cell size in the DTSI > - A few fixes here and there: typos, etc. > > Maxime Ripard (5): > clk: sunxi: Add support for PLL6 on the A31 > ARM: sun6i: dt: Add PLL6 and SPI module clocks > spi: sunxi: Add Allwinner A31 SPI controller driver > ARM: sun6i: dt: Add SPI controllers to the A31 DTSI > ARM: sunxi: Enable A31 SPI and SID in the defconfig Applied patch 2 and 4 to sunxi/dt-for-3.15, and patch 5 to sunxi/defconfig-for-3.15 Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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