Hello.

On 09/14/2014 06:29 AM, Jianqun wrote:

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 <[email protected]>
---
   sound/soc/rockchip/rockchip_i2s.c | 6 +++---
   1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c 
b/sound/soc/rockchip/rockchip_i2s.c
index 1b9b404..6595383 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
[...]
@@ -385,8 +387,6 @@ 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;
       }

    Shouldn't this be folded into simple *return* false now?

That is more reasonable, thank you.

   Moreover, this function may be completely eliminated.

WBR, Sergei

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