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ASoC: rockchip-i2s: fix registers' property of rockchip i2s controller 

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: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jianqun 2014-09-13 08:42:12 +08:00 committed by Mark Brown
parent 07833d8831
commit 2f1e93f81c
1 changed files with 3 additions and 3 deletions
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6
sound/soc/rockchip/rockchip_i2s.c
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@ -362,6 +362,8 @@ static bool rockchip_i2s_rd_reg(struct device *dev, unsigned int reg)
case I2S_XFER:
case I2S_CLR:
case I2S_RXDR:
case I2S_FIFOLR:
case I2S_INTSR:
return true;
default:
return false;
@ -371,8 +373,8 @@ static bool rockchip_i2s_rd_reg(struct device *dev, unsigned int reg)
static bool rockchip_i2s_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case I2S_FIFOLR:
case I2S_INTSR:
case I2S_CLR:
return true;
default:
return false;
@ -382,8 +384,6 @@ static bool rockchip_i2s_volatile_reg(struct device *dev, unsigned int reg)
static bool rockchip_i2s_precious_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case I2S_FIFOLR:
return true;
default:
return false;
}