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From: Jianqun <jay.xu@rock-chips.com>
To: heiko@sntech.de, lgirdwood@gmail.com, broonie@kernel.org,
	perex@perex.cz, tiwai@suse.de,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	alsa-devel@alsa-project.org
Cc: huangtao@rock-chips.com, cf@rock-chips.com,
	Jianqun <jay.xu@rock-chips.com>
Subject: [PATCH 4/5] ASoC: rockchip-i2s: fix registers' property of rockchip i2s controller
Date: Sat, 13 Sep 2014 08:42:12 +0800	[thread overview]
Message-ID: <1410568932-21823-1-git-send-email-jay.xu@rock-chips.com> (raw)
In-Reply-To: <1410568723-21559-1-git-send-email-jay.xu@rock-chips.com>

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>
---
 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
@@ -365,6 +365,8 @@ 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;
@@ -374,8 +376,8 @@ 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;
@@ -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;
 	}
-- 
1.9.1


WARNING: multiple messages have this Message-ID (diff)
From: jay.xu@rock-chips.com (Jianqun)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/5] ASoC: rockchip-i2s: fix registers' property of rockchip i2s controller
Date: Sat, 13 Sep 2014 08:42:12 +0800	[thread overview]
Message-ID: <1410568932-21823-1-git-send-email-jay.xu@rock-chips.com> (raw)
In-Reply-To: <1410568723-21559-1-git-send-email-jay.xu@rock-chips.com>

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>
---
 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
@@ -365,6 +365,8 @@ 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;
@@ -374,8 +376,8 @@ 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;
@@ -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;
 	}
-- 
1.9.1

  parent reply	other threads:[~2014-09-13  1:17 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-13  0:38 [PATCH 0/5] ASoC: rockchip-i2s: patches for rockchip i2s driver Jianqun
2014-09-13  0:38 ` Jianqun
2014-09-13  0:40 ` [PATCH 1/5] ASoC: rockchip-i2s: fix rockchip i2s defination more reasonable Jianqun
2014-09-13  0:40   ` Jianqun
2014-09-13 16:38   ` Mark Brown
2014-09-13 16:38     ` Mark Brown
2014-09-13  0:41 ` [PATCH 2/5] ASoC: rockchip-i2s: fix master mode set bit error Jianqun
2014-09-13  0:41   ` Jianqun
2014-09-13 16:35   ` Mark Brown
2014-09-13 16:35     ` Mark Brown
2014-09-13 16:35     ` Mark Brown
2014-09-14  2:06     ` Jianqun
2014-09-14  2:06       ` Jianqun
2014-09-14  2:06       ` Jianqun
2014-09-13  0:41 ` [PATCH 3/5] ASoC: rockchip-i2s: add dma data to snd_soc_dai Jianqun
2014-09-13  0:41   ` Jianqun
2014-09-13 16:38   ` Mark Brown
2014-09-13 16:38     ` Mark Brown
2014-09-13  0:42 ` Jianqun [this message]
2014-09-13  0:42   ` [PATCH 4/5] ASoC: rockchip-i2s: fix registers' property of rockchip i2s controller Jianqun
2014-09-13 16:36   ` Mark Brown
2014-09-13 16:36     ` Mark Brown
2014-09-14  2:20     ` Jianqun
2014-09-14  2:20       ` Jianqun
2014-09-13 20:57   ` Sergei Shtylyov
2014-09-13 20:57     ` Sergei Shtylyov
2014-09-14  2:29     ` Jianqun
2014-09-14  2:29       ` Jianqun
2014-09-14 18:53       ` Sergei Shtylyov
2014-09-14 18:53         ` Sergei Shtylyov
2014-09-13  0:43 ` [PATCH 5/5] ASoC: rockchip-i2s: enable "hclk" for rockchip I2S controller Jianqun
2014-09-13  0:43   ` Jianqun
2014-09-13 16:36   ` Mark Brown
2014-09-13 16:36     ` Mark Brown
2014-09-14  2:24     ` Jianqun
2014-09-14  2:24       ` Jianqun
2014-09-13 16:37   ` Mark Brown
2014-09-13 16:37     ` Mark Brown
2014-09-14  2:27     ` Jianqun
2014-09-14  2:27       ` Jianqun
2014-09-15 16:54       ` Mark Brown
2014-09-15 16:54         ` Mark Brown

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