spi: rockchip: support 4bit words
authorEmil Renner Berthing <kernel@esmil.dk>
Wed, 31 Oct 2018 10:57:10 +0000 (11:57 +0100)
committerMark Brown <broonie@kernel.org>
Mon, 5 Nov 2018 11:42:39 +0000 (11:42 +0000)
commit65498c6ae2414a1425aa6c4231e79e2998afec05
tree70cca0880cc8557f3855bb1d338ceaa1661fab53
parent01b59ce5dac856323a0c13c1d51d99a819f32efe
spi: rockchip: support 4bit words

The hardware supports 4, 8 and 16bit spi words,
so add the missing support for 4bit words.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-rockchip.c