We can get into an infinite loop if the I2S_CLR register fails to
clear due to a missing break statement, so add that.
Signed-off-by: NSonny Rao <sonnyrao@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Add playback/capture dma data to snd_soc_dai.
Test on RK3288 with max98090.
Signed-off-by: NJianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

As "hclk" is used for rockchip I2S controller, driver must to enable
it in probe.

Tested on RK3288 with max98090.
Signed-off-by: NJianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Reference rockchip I2S controller TRM, modify some registers' property
I2S_FIFOLR: read / write, but not volatile, not precious
I2S_INTSR: read / write
I2S_CLR: volatile, register value will be cleared by read

Test on RK3288 with max98090.
Signed-off-by: NJianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Fix error format set to I2S master or slave mode.
Test on RK3288 board with max98090.
Signed-off-by: NJianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NMark Brown <broonie@linaro.org>

This resulted from an unfortunate copy/paste to similar DEFINE name.

Detected automagically by kbuild.
Signed-off-by: xujianqun <xjq@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Missing module.h in linux directory will cause compile error with randconfig,
like as:
sound/soc/rockchip/rockchip_i2s.c:526:20: error: expected declaration
specifiers or ‘...’ before string constant
MODULE_DESCRIPTION("ROCKCHIP IIS ASoC Interface");
Signed-off-by: xujianqun <xjq@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Add driver for i2s controller found on rk3066, rk3168 and rk3288
processors from rockchip.

Tested on the RK3288 SDK board.
Signed-off-by: Jianqun Xu <xjq@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>