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>

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 870a6645c7824d0c8f9f70d927595375ee4104b2..fb9e05c9f47199c7bdcbd8413846899b074615ce 100644 (file)
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -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;
        }