[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[sean.wang]

From: Sean Wang <sean.wang@mediatek.com>

Similar to the readx_poll_timeout() macro calling ktime_* and using
ktime_t type, which is declared in <linux/ktime.h>. So, make
include/linux/regmap.h explicitly include <linux/ktime.h>, like
include/linux/iopoll.h does.  Otherwise, users of the macro will see
below errors.

error: implicit declaration of function ‘ktime_add_us’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_get’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_compare’
[-Werror=implicit-function-declaration]

include/linux/regmap.h:128:2: error: unknown type name ‘ktime_t’
  ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 5f7ad05..b6865f0 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/bug.h>
-- 
2.7.4

[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[sean.wang at mediatek.com]

From: Sean Wang <sean.wang@mediatek.com>

Similar to the readx_poll_timeout() macro calling ktime_* and using
ktime_t type, which is declared in <linux/ktime.h>. So, make
include/linux/regmap.h explicitly include <linux/ktime.h>, like
include/linux/iopoll.h does.  Otherwise, users of the macro will see
below errors.

error: implicit declaration of function ?ktime_add_us?
[-Werror=implicit-function-declaration]

error: implicit declaration of function ?ktime_get?
[-Werror=implicit-function-declaration]

error: implicit declaration of function ?ktime_compare?
[-Werror=implicit-function-declaration]

include/linux/regmap.h:128:2: error: unknown type name ?ktime_t?
  ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 5f7ad05..b6865f0 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/bug.h>
-- 
2.7.4

[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[sean.wang]

From: Sean Wang <sean.wang@mediatek.com>

Similar to the readx_poll_timeout() macro calling ktime_* and using
ktime_t type, which is declared in <linux/ktime.h>. So, make
include/linux/regmap.h explicitly include <linux/ktime.h>, like
include/linux/iopoll.h does.  Otherwise, users of the macro will see
below errors.

error: implicit declaration of function ‘ktime_add_us’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_get’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_compare’
[-Werror=implicit-function-declaration]

include/linux/regmap.h:128:2: error: unknown type name ‘ktime_t’
  ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 5f7ad05..b6865f0 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/bug.h>
-- 
2.7.4

[PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[sean.wang]

From: Sean Wang <sean.wang@mediatek.com>

Reuse the common helpers regmap_read_poll_timeout provided by Linux core
instead of an open-coded handling.

v1 -> v2:
 - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
   arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
 - remove unnecessary linux/iopoll.h being included in.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Weiyi Lu <weiyi.lu@mediatek.com>
---
 drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
 1 file changed, 12 insertions(+), 34 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
index 8c310de..958861c 100644
--- a/drivers/soc/mediatek/mtk-infracfg.c
+++ b/drivers/soc/mediatek/mtk-infracfg.c
@@ -17,6 +17,9 @@
 #include <linux/soc/mediatek/infracfg.h>
 #include <asm/processor.h>
 
+#define MTK_POLL_DELAY_US   10
+#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
+
 #define INFRA_TOPAXI_PROTECTEN		0x0220
 #define INFRA_TOPAXI_PROTECTSTA1	0x0228
 #define INFRA_TOPAXI_PROTECTEN_SET	0x0260
@@ -37,7 +40,6 @@
 int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	u32 val;
 	int ret;
 
@@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if ((val & mask) == mask)
-			break;
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, (val & mask) == mask,
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
-
-	return 0;
+	return ret;
 }
 
 /**
@@ -80,30 +71,17 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	int ret;
+	u32 val;
 
 	if (reg_update)
 		regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		u32 val;
-
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if (!(val & mask))
-			break;
-
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, !(val & mask),
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-	return 0;
+	return ret;
 }
-- 
2.7.4

[PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[sean.wang at mediatek.com]

From: Sean Wang <sean.wang@mediatek.com>

Reuse the common helpers regmap_read_poll_timeout provided by Linux core
instead of an open-coded handling.

v1 -> v2:
 - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
   arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
 - remove unnecessary linux/iopoll.h being included in.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Weiyi Lu <weiyi.lu@mediatek.com>
---
 drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
 1 file changed, 12 insertions(+), 34 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
index 8c310de..958861c 100644
--- a/drivers/soc/mediatek/mtk-infracfg.c
+++ b/drivers/soc/mediatek/mtk-infracfg.c
@@ -17,6 +17,9 @@
 #include <linux/soc/mediatek/infracfg.h>
 #include <asm/processor.h>
 
+#define MTK_POLL_DELAY_US   10
+#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
+
 #define INFRA_TOPAXI_PROTECTEN		0x0220
 #define INFRA_TOPAXI_PROTECTSTA1	0x0228
 #define INFRA_TOPAXI_PROTECTEN_SET	0x0260
@@ -37,7 +40,6 @@
 int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	u32 val;
 	int ret;
 
@@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if ((val & mask) == mask)
-			break;
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, (val & mask) == mask,
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
-
-	return 0;
+	return ret;
 }
 
 /**
@@ -80,30 +71,17 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	int ret;
+	u32 val;
 
 	if (reg_update)
 		regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		u32 val;
-
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if (!(val & mask))
-			break;
-
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, !(val & mask),
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-	return 0;
+	return ret;
 }
-- 
2.7.4

[PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[sean.wang]

From: Sean Wang <sean.wang@mediatek.com>

Reuse the common helpers regmap_read_poll_timeout provided by Linux core
instead of an open-coded handling.

v1 -> v2:
 - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
   arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
 - remove unnecessary linux/iopoll.h being included in.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Weiyi Lu <weiyi.lu@mediatek.com>
---
 drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
 1 file changed, 12 insertions(+), 34 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
index 8c310de..958861c 100644
--- a/drivers/soc/mediatek/mtk-infracfg.c
+++ b/drivers/soc/mediatek/mtk-infracfg.c
@@ -17,6 +17,9 @@
 #include <linux/soc/mediatek/infracfg.h>
 #include <asm/processor.h>
 
+#define MTK_POLL_DELAY_US   10
+#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
+
 #define INFRA_TOPAXI_PROTECTEN		0x0220
 #define INFRA_TOPAXI_PROTECTSTA1	0x0228
 #define INFRA_TOPAXI_PROTECTEN_SET	0x0260
@@ -37,7 +40,6 @@
 int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	u32 val;
 	int ret;
 
@@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if ((val & mask) == mask)
-			break;
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, (val & mask) == mask,
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
-
-	return 0;
+	return ret;
 }
 
 /**
@@ -80,30 +71,17 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
 int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
 		bool reg_update)
 {
-	unsigned long expired;
 	int ret;
+	u32 val;
 
 	if (reg_update)
 		regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
 	else
 		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
 
-	expired = jiffies + HZ;
-
-	while (1) {
-		u32 val;
-
-		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
-		if (ret)
-			return ret;
-
-		if (!(val & mask))
-			break;
-
-		cpu_relax();
-		if (time_after(jiffies, expired))
-			return -EIO;
-	}
+	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
+				       val, !(val & mask),
+				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
 
-	return 0;
+	return ret;
 }
-- 
2.7.4

Re: [PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[Matthias Brugger]

On 04/23/2018 08:42 AM, sean.wang@mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Reuse the common helpers regmap_read_poll_timeout provided by Linux core
> instead of an open-coded handling.
> 
> v1 -> v2:
>  - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
>    arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
>  - remove unnecessary linux/iopoll.h being included in.
> 
> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> Cc: Matthias Brugger <matthias.bgg@gmail.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: Weiyi Lu <weiyi.lu@mediatek.com>
> ---
>  drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
>  1 file changed, 12 insertions(+), 34 deletions(-)
> 

pushed to v4.17-next/soc

> diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
> index 8c310de..958861c 100644
> --- a/drivers/soc/mediatek/mtk-infracfg.c
> +++ b/drivers/soc/mediatek/mtk-infracfg.c
> @@ -17,6 +17,9 @@
>  #include <linux/soc/mediatek/infracfg.h>
>  #include <asm/processor.h>
>  
> +#define MTK_POLL_DELAY_US   10
> +#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
> +
>  #define INFRA_TOPAXI_PROTECTEN		0x0220
>  #define INFRA_TOPAXI_PROTECTSTA1	0x0228
>  #define INFRA_TOPAXI_PROTECTEN_SET	0x0260
> @@ -37,7 +40,6 @@
>  int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
>  		bool reg_update)
>  {
> -	unsigned long expired;
>  	u32 val;
>  	int ret;
>  
> @@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
>  	else
>  		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
>  
> -	expired = jiffies + HZ;
> -
> -	while (1) {
> -		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
> -		if (ret)
> -			return ret;
> -
> -		if ((val & mask) == mask)
> -			break;
> +	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
> +				       val, (val & mask) == mask,
> +				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
>  
> -		cpu_relax();
> -		if (time_after(jiffies, expired))
> -			return -EIO;
> -	}
> -
> -	return 0;
> +	return ret;
>  }
>  
>  /**
> @@ -80,30 +71,17 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
>  int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
>  		bool reg_update)
>  {
> -	unsigned long expired;
>  	int ret;
> +	u32 val;
>  
>  	if (reg_update)
>  		regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
>  	else
>  		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
>  
> -	expired = jiffies + HZ;
> -
> -	while (1) {
> -		u32 val;
> -
> -		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
> -		if (ret)
> -			return ret;
> -
> -		if (!(val & mask))
> -			break;
> -
> -		cpu_relax();
> -		if (time_after(jiffies, expired))
> -			return -EIO;
> -	}
> +	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
> +				       val, !(val & mask),
> +				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
>  
> -	return 0;
> +	return ret;
>  }
> 

[PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[Matthias Brugger]

On 04/23/2018 08:42 AM, sean.wang at mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Reuse the common helpers regmap_read_poll_timeout provided by Linux core
> instead of an open-coded handling.
> 
> v1 -> v2:
>  - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
>    arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
>  - remove unnecessary linux/iopoll.h being included in.
> 
> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> Cc: Matthias Brugger <matthias.bgg@gmail.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: Weiyi Lu <weiyi.lu@mediatek.com>
> ---
>  drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
>  1 file changed, 12 insertions(+), 34 deletions(-)
> 

pushed to v4.17-next/soc

> diff --git a/drivers/soc/mediatek/mtk-infracfg.c b/drivers/soc/mediatek/mtk-infracfg.c
> index 8c310de..958861c 100644
> --- a/drivers/soc/mediatek/mtk-infracfg.c
> +++ b/drivers/soc/mediatek/mtk-infracfg.c
> @@ -17,6 +17,9 @@
>  #include <linux/soc/mediatek/infracfg.h>
>  #include <asm/processor.h>
>  
> +#define MTK_POLL_DELAY_US   10
> +#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
> +
>  #define INFRA_TOPAXI_PROTECTEN		0x0220
>  #define INFRA_TOPAXI_PROTECTSTA1	0x0228
>  #define INFRA_TOPAXI_PROTECTEN_SET	0x0260
> @@ -37,7 +40,6 @@
>  int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
>  		bool reg_update)
>  {
> -	unsigned long expired;
>  	u32 val;
>  	int ret;
>  
> @@ -47,22 +49,11 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
>  	else
>  		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_SET, mask);
>  
> -	expired = jiffies + HZ;
> -
> -	while (1) {
> -		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
> -		if (ret)
> -			return ret;
> -
> -		if ((val & mask) == mask)
> -			break;
> +	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
> +				       val, (val & mask) == mask,
> +				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
>  
> -		cpu_relax();
> -		if (time_after(jiffies, expired))
> -			return -EIO;
> -	}
> -
> -	return 0;
> +	return ret;
>  }
>  
>  /**
> @@ -80,30 +71,17 @@ int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask,
>  int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
>  		bool reg_update)
>  {
> -	unsigned long expired;
>  	int ret;
> +	u32 val;
>  
>  	if (reg_update)
>  		regmap_update_bits(infracfg, INFRA_TOPAXI_PROTECTEN, mask, 0);
>  	else
>  		regmap_write(infracfg, INFRA_TOPAXI_PROTECTEN_CLR, mask);
>  
> -	expired = jiffies + HZ;
> -
> -	while (1) {
> -		u32 val;
> -
> -		ret = regmap_read(infracfg, INFRA_TOPAXI_PROTECTSTA1, &val);
> -		if (ret)
> -			return ret;
> -
> -		if (!(val & mask))
> -			break;
> -
> -		cpu_relax();
> -		if (time_after(jiffies, expired))
> -			return -EIO;
> -	}
> +	ret = regmap_read_poll_timeout(infracfg, INFRA_TOPAXI_PROTECTSTA1,
> +				       val, !(val & mask),
> +				       MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
>  
> -	return 0;
> +	return ret;
>  }
> 

Re: [PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[Matthias Brugger]

Hi Sean,

On 04/23/2018 08:42 AM, sean.wang@mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Reuse the common helpers regmap_read_poll_timeout provided by Linux core
> instead of an open-coded handling.
> 
> v1 -> v2:
>  - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
>    arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
>  - remove unnecessary linux/iopoll.h being included in.
> 

I just realized that you wrote the changelog here, which will make it show up in
the commit log. Thant's not what we want... (see below)

> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> Cc: Matthias Brugger <matthias.bgg@gmail.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: Weiyi Lu <weiyi.lu@mediatek.com>
> ---
>  drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
>  1 file changed, 12 insertions(+), 34 deletions(-)
> 

Please write your changelog here in the future.
I'll fix that up in my tree now, but please remember the next time :)
Thanks
Matthias

[PATCH v2 2/2] soc: mediatek: reuse regmap_read_poll_timeout helpers

[Matthias Brugger]

Hi Sean,

On 04/23/2018 08:42 AM, sean.wang at mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Reuse the common helpers regmap_read_poll_timeout provided by Linux core
> instead of an open-coded handling.
> 
> v1 -> v2:
>  - use macro definitions MTK_POLL_DELAY_US and MTK_POLL_TIMEOUT for
>    arguments sleep_us and timeout_us passing in regmap_read_poll_timeout.
>  - remove unnecessary linux/iopoll.h being included in.
> 

I just realized that you wrote the changelog here, which will make it show up in
the commit log. Thant's not what we want... (see below)

> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> Cc: Matthias Brugger <matthias.bgg@gmail.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: Weiyi Lu <weiyi.lu@mediatek.com>
> ---
>  drivers/soc/mediatek/mtk-infracfg.c | 46 ++++++++++---------------------------
>  1 file changed, 12 insertions(+), 34 deletions(-)
> 

Please write your changelog here in the future.
I'll fix that up in my tree now, but please remember the next time :)
Thanks
Matthias

Re: [PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 333 bytes --]

On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang@mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Similar to the readx_poll_timeout() macro calling ktime_* and using
> ktime_t type, which is declared in <linux/ktime.h>. So, make

I'm missing patch 2 here - what's the story, are there any
dependencies?

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[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang at mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
> 
> Similar to the readx_poll_timeout() macro calling ktime_* and using
> ktime_t type, which is declared in <linux/ktime.h>. So, make

I'm missing patch 2 here - what's the story, are there any
dependencies?
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Re: [PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Matthias Brugger]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256



On 04/23/2018 12:03 PM, Mark Brown wrote:
> On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang@mediatek.com wrote:
>> From: Sean Wang <sean.wang@mediatek.com>
>> 
>> Similar to the readx_poll_timeout() macro calling ktime_* and using 
>> ktime_t type, which is declared in <linux/ktime.h>. So, make
> 
> I'm missing patch 2 here - what's the story, are there any dependencies?
> 

You can find the second patch here:
https://patchwork.kernel.org/patch/10356237/

Regards,
Matthias
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[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Matthias Brugger]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256



On 04/23/2018 12:03 PM, Mark Brown wrote:
> On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang at mediatek.com wrote:
>> From: Sean Wang <sean.wang@mediatek.com>
>> 
>> Similar to the readx_poll_timeout() macro calling ktime_* and using 
>> ktime_t type, which is declared in <linux/ktime.h>. So, make
> 
> I'm missing patch 2 here - what's the story, are there any dependencies?
> 

You can find the second patch here:
https://patchwork.kernel.org/patch/10356237/

Regards,
Matthias
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Re: [PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 602 bytes --]

On Mon, Apr 23, 2018 at 12:11:01PM +0200, Matthias Brugger wrote:

> On 04/23/2018 12:03 PM, Mark Brown wrote:
> > On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang@mediatek.com wrote:
> >> From: Sean Wang <sean.wang@mediatek.com>

> >> Similar to the readx_poll_timeout() macro calling ktime_* and using 
> >> ktime_t type, which is declared in <linux/ktime.h>. So, make

> > I'm missing patch 2 here - what's the story, are there any dependencies?

> You can find the second patch here:
> https://patchwork.kernel.org/patch/10356237/

So it looks like there is a dependency here...?

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[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

On Mon, Apr 23, 2018 at 12:11:01PM +0200, Matthias Brugger wrote:

> On 04/23/2018 12:03 PM, Mark Brown wrote:
> > On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang at mediatek.com wrote:
> >> From: Sean Wang <sean.wang@mediatek.com>

> >> Similar to the readx_poll_timeout() macro calling ktime_* and using 
> >> ktime_t type, which is declared in <linux/ktime.h>. So, make

> > I'm missing patch 2 here - what's the story, are there any dependencies?

> You can find the second patch here:
> https://patchwork.kernel.org/patch/10356237/

So it looks like there is a dependency here...?
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Re: [PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Matthias Brugger]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256



On 04/23/2018 01:50 PM, Mark Brown wrote:
> On Mon, Apr 23, 2018 at 12:11:01PM +0200, Matthias Brugger wrote:
> 
>> On 04/23/2018 12:03 PM, Mark Brown wrote:
>>> On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang@mediatek.com
>>> wrote:
>>>> From: Sean Wang <sean.wang@mediatek.com>
> 
>>>> Similar to the readx_poll_timeout() macro calling ktime_* and using 
>>>> ktime_t type, which is declared in <linux/ktime.h>. So, make
> 
>>> I'm missing patch 2 here - what's the story, are there any
>>> dependencies?
> 
>> You can find the second patch here: 
>> https://patchwork.kernel.org/patch/10356237/
> 
> So it looks like there is a dependency here...?
> 

Yes, regmap_read_poll_timeout macro uses for example ktime_compare which is
defined in linux/ktime.h

That's my understanding.

Regards,
Matthias
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[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Matthias Brugger]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256



On 04/23/2018 01:50 PM, Mark Brown wrote:
> On Mon, Apr 23, 2018 at 12:11:01PM +0200, Matthias Brugger wrote:
> 
>> On 04/23/2018 12:03 PM, Mark Brown wrote:
>>> On Mon, Apr 23, 2018 at 02:42:44PM +0800, sean.wang at mediatek.com
>>> wrote:
>>>> From: Sean Wang <sean.wang@mediatek.com>
> 
>>>> Similar to the readx_poll_timeout() macro calling ktime_* and using 
>>>> ktime_t type, which is declared in <linux/ktime.h>. So, make
> 
>>> I'm missing patch 2 here - what's the story, are there any
>>> dependencies?
> 
>> You can find the second patch here: 
>> https://patchwork.kernel.org/patch/10356237/
> 
> So it looks like there is a dependency here...?
> 

Yes, regmap_read_poll_timeout macro uses for example ktime_compare which is
defined in linux/ktime.h

That's my understanding.

Regards,
Matthias
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Re: [PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1322 bytes --]

On Mon, Apr 23, 2018 at 04:07:10PM +0200, Matthias Brugger wrote:
> On 04/23/2018 01:50 PM, Mark Brown wrote:

> > So it looks like there is a dependency here...?

> Yes, regmap_read_poll_timeout macro uses for example ktime_compare which is
> defined in linux/ktime.h

> That's my understanding.

OK, it's important to make sure that people getting a patch series know
about stuff like this as it will affect how things are reviewed and
applied.  

The following changes since commit e241e3f2bf975788a1b70dff2eb5180ca395b28e:

  Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost (2018-04-11 18:58:27 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git tags/regmap-ktime-fix

for you to fetch changes up to f15cd6d99198e9c15229aefec639a34a6e8174c6:

  regmap: include <linux/ktime.h> from include/linux/regmap.h (2018-04-24 18:11:50 +0100)

----------------------------------------------------------------
regmap: Fix missing include of ktime.h

Required for some dependencies.

----------------------------------------------------------------
Sean Wang (1):
      regmap: include <linux/ktime.h> from include/linux/regmap.h

 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

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[PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

On Mon, Apr 23, 2018 at 04:07:10PM +0200, Matthias Brugger wrote:
> On 04/23/2018 01:50 PM, Mark Brown wrote:

> > So it looks like there is a dependency here...?

> Yes, regmap_read_poll_timeout macro uses for example ktime_compare which is
> defined in linux/ktime.h

> That's my understanding.

OK, it's important to make sure that people getting a patch series know
about stuff like this as it will affect how things are reviewed and
applied.  

The following changes since commit e241e3f2bf975788a1b70dff2eb5180ca395b28e:

  Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost (2018-04-11 18:58:27 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git tags/regmap-ktime-fix

for you to fetch changes up to f15cd6d99198e9c15229aefec639a34a6e8174c6:

  regmap: include <linux/ktime.h> from include/linux/regmap.h (2018-04-24 18:11:50 +0100)

----------------------------------------------------------------
regmap: Fix missing include of ktime.h

Required for some dependencies.

----------------------------------------------------------------
Sean Wang (1):
      regmap: include <linux/ktime.h> from include/linux/regmap.h

 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)
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Re: [PATCH v2 1/2] regmap: include <linux/ktime.h> from include/linux/regmap.h

[Mark Brown]

[-- Attachment #1.1: Type: text/plain, Size: 1322 bytes --]

On Mon, Apr 23, 2018 at 04:07:10PM +0200, Matthias Brugger wrote:
> On 04/23/2018 01:50 PM, Mark Brown wrote:

> > So it looks like there is a dependency here...?

> Yes, regmap_read_poll_timeout macro uses for example ktime_compare which is
> defined in linux/ktime.h

> That's my understanding.

OK, it's important to make sure that people getting a patch series know
about stuff like this as it will affect how things are reviewed and
applied.  

The following changes since commit e241e3f2bf975788a1b70dff2eb5180ca395b28e:

  Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost (2018-04-11 18:58:27 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git tags/regmap-ktime-fix

for you to fetch changes up to f15cd6d99198e9c15229aefec639a34a6e8174c6:

  regmap: include <linux/ktime.h> from include/linux/regmap.h (2018-04-24 18:11:50 +0100)

----------------------------------------------------------------
regmap: Fix missing include of ktime.h

Required for some dependencies.

----------------------------------------------------------------
Sean Wang (1):
      regmap: include <linux/ktime.h> from include/linux/regmap.h

 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

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_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-mediatek

Applied "regmap: include <linux/ktime.h> from include/linux/regmap.h" to the regmap tree

[Mark Brown]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2488 bytes --]

The patch

   regmap: include <linux/ktime.h> from include/linux/regmap.h

has been applied to the regmap tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From f15cd6d99198e9c15229aefec639a34a6e8174c6 Mon Sep 17 00:00:00 2001
From: Sean Wang <sean.wang@mediatek.com>
Date: Mon, 23 Apr 2018 14:42:44 +0800
Subject: [PATCH] regmap: include <linux/ktime.h> from include/linux/regmap.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Similar to the readx_poll_timeout() macro calling ktime_* and using
ktime_t type, which is declared in <linux/ktime.h>. So, make
include/linux/regmap.h explicitly include <linux/ktime.h>, like
include/linux/iopoll.h does.  Otherwise, users of the macro will see
below errors.

error: implicit declaration of function ‘ktime_add_us’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_get’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_compare’
[-Werror=implicit-function-declaration]

include/linux/regmap.h:128:2: error: unknown type name ‘ktime_t’
  ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 5f7ad0552c03..b6865f070464 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/bug.h>
-- 
2.17.0

Applied "regmap: include <linux/ktime.h> from include/linux/regmap.h" to the regmap tree

[Mark Brown]

The patch

   regmap: include <linux/ktime.h> from include/linux/regmap.h

has been applied to the regmap tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From f15cd6d99198e9c15229aefec639a34a6e8174c6 Mon Sep 17 00:00:00 2001
From: Sean Wang <sean.wang@mediatek.com>
Date: Mon, 23 Apr 2018 14:42:44 +0800
Subject: [PATCH] regmap: include <linux/ktime.h> from include/linux/regmap.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Similar to the readx_poll_timeout() macro calling ktime_* and using
ktime_t type, which is declared in <linux/ktime.h>. So, make
include/linux/regmap.h explicitly include <linux/ktime.h>, like
include/linux/iopoll.h does.  Otherwise, users of the macro will see
below errors.

error: implicit declaration of function ???ktime_add_us???
[-Werror=implicit-function-declaration]

error: implicit declaration of function ???ktime_get???
[-Werror=implicit-function-declaration]

error: implicit declaration of function ???ktime_compare???
[-Werror=implicit-function-declaration]

include/linux/regmap.h:128:2: error: unknown type name ???ktime_t???
  ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 5f7ad0552c03..b6865f070464 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/bug.h>
-- 
2.17.0

Applied "regmap: include <linux/ktime.h> from include/linux/regmap.h" to the regmap tree

[Mark Brown]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2488 bytes --]

The patch

   regmap: include <linux/ktime.h> from include/linux/regmap.h

has been applied to the regmap tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From f15cd6d99198e9c15229aefec639a34a6e8174c6 Mon Sep 17 00:00:00 2001
From: Sean Wang <sean.wang@mediatek.com>
Date: Mon, 23 Apr 2018 14:42:44 +0800
Subject: [PATCH] regmap: include <linux/ktime.h> from include/linux/regmap.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Similar to the readx_poll_timeout() macro calling ktime_* and using
ktime_t type, which is declared in <linux/ktime.h>. So, make
include/linux/regmap.h explicitly include <linux/ktime.h>, like
include/linux/iopoll.h does.  Otherwise, users of the macro will see
below errors.

error: implicit declaration of function ‘ktime_add_us’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_get’
[-Werror=implicit-function-declaration]

error: implicit declaration of function ‘ktime_compare’
[-Werror=implicit-function-declaration]

include/linux/regmap.h:128:2: error: unknown type name ‘ktime_t’
  ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 include/linux/regmap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 5f7ad0552c03..b6865f070464 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/ktime.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/bug.h>
-- 
2.17.0