[RFC,v2,6/7] i2c: tegra-bpmp: convert to use new atomic callbacks
diff mbox series

Message ID 20190302134735.4393-7-wsa+renesas@sang-engineering.com
State Deferred
Headers show
Series
  • i2c: core: introduce atomic transfers
Related show

Commit Message

Wolfram Sang March 2, 2019, 1:47 p.m. UTC
The driver did handle this internally, convert it to use the new
callbacks.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/i2c/busses/i2c-tegra-bpmp.c | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

Comments

Timo Alho March 4, 2019, 12:25 p.m. UTC | #1
On 2.3.2019 15.47, Wolfram Sang wrote:
> The driver did handle this internally, convert it to use the new
> callbacks.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>   drivers/i2c/busses/i2c-tegra-bpmp.c | 27 ++++++++++++++++++++++-----
>   1 file changed, 22 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c
> index f6cd35d0a2ac..02b78ba5b23b 100644
> --- a/drivers/i2c/busses/i2c-tegra-bpmp.c
> +++ b/drivers/i2c/busses/i2c-tegra-bpmp.c
> @@ -207,7 +207,8 @@ static int tegra_bpmp_i2c_msg_len_check(struct i2c_msg *msgs, unsigned int num)
>   
>   static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
>   				   struct mrq_i2c_request *request,
> -				   struct mrq_i2c_response *response)
> +				   struct mrq_i2c_response *response,
> +				   bool atomic)
>   {
>   	struct tegra_bpmp_message msg;
>   	int err;
> @@ -222,7 +223,7 @@ static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
>   	msg.rx.data = response;
>   	msg.rx.size = sizeof(*response);
>   
> -	if (irqs_disabled())
> +	if (atomic)
>   		err = tegra_bpmp_transfer_atomic(i2c->bpmp, &msg);
>   	else
>   		err = tegra_bpmp_transfer(i2c->bpmp, &msg);
> @@ -230,8 +231,9 @@ static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
>   	return err;
>   }
>   
> -static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
> -			       struct i2c_msg *msgs, int num)
> +static int tegra_bpmp_i2c_xfer_common(struct i2c_adapter *adapter,
> +				      struct i2c_msg *msgs, int num,
> +				      bool atomic)
>   {
>   	struct tegra_bpmp_i2c *i2c = i2c_get_adapdata(adapter);
>   	struct mrq_i2c_response response;
> @@ -253,7 +255,7 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
>   		return err;
>   	}
>   
> -	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response);
> +	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response, atomic);
>   	if (err < 0) {
>   		dev_err(i2c->dev, "failed to transfer message: %d\n", err);
>   		return err;
> @@ -268,6 +270,20 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
>   	return num;
>   }
>   
> +static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
> +			       struct i2c_msg *msgs, int num)
> +
> +{
> +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
> +}
> +
> +static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
> +				      struct i2c_msg *msgs, int num)
> +
> +{
> +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, true);
> +}
> +
>   static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
>   {
>   	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
> @@ -276,6 +292,7 @@ static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
>   
>   static const struct i2c_algorithm tegra_bpmp_i2c_algo = {
>   	.master_xfer = tegra_bpmp_i2c_xfer,
> +	.master_xfer_atomic = tegra_bpmp_i2c_xfer_atomic,
>   	.functionality = tegra_bpmp_i2c_func,
>   };
>   
> 

Looks good to me.

Reviewed-by: Timo Alho <talho@nvidia.com>
Thierry Reding March 4, 2019, 12:59 p.m. UTC | #2
On Sat, Mar 02, 2019 at 02:47:34PM +0100, Wolfram Sang wrote:
> The driver did handle this internally, convert it to use the new
> callbacks.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>  drivers/i2c/busses/i2c-tegra-bpmp.c | 27 ++++++++++++++++++++++-----
>  1 file changed, 22 insertions(+), 5 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>
Simon Horman March 15, 2019, 12:42 p.m. UTC | #3
On Sat, Mar 02, 2019 at 02:47:34PM +0100, Wolfram Sang wrote:
> The driver did handle this internally, convert it to use the new
> callbacks.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

Reviewed-by: Simon Horman <horms+renesas@verge.net.au>

> ---
>  drivers/i2c/busses/i2c-tegra-bpmp.c | 27 ++++++++++++++++++++++-----
>  1 file changed, 22 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c
> index f6cd35d0a2ac..02b78ba5b23b 100644
> --- a/drivers/i2c/busses/i2c-tegra-bpmp.c
> +++ b/drivers/i2c/busses/i2c-tegra-bpmp.c
> @@ -207,7 +207,8 @@ static int tegra_bpmp_i2c_msg_len_check(struct i2c_msg *msgs, unsigned int num)
>  
>  static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
>  				   struct mrq_i2c_request *request,
> -				   struct mrq_i2c_response *response)
> +				   struct mrq_i2c_response *response,
> +				   bool atomic)
>  {
>  	struct tegra_bpmp_message msg;
>  	int err;
> @@ -222,7 +223,7 @@ static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
>  	msg.rx.data = response;
>  	msg.rx.size = sizeof(*response);
>  
> -	if (irqs_disabled())
> +	if (atomic)
>  		err = tegra_bpmp_transfer_atomic(i2c->bpmp, &msg);
>  	else
>  		err = tegra_bpmp_transfer(i2c->bpmp, &msg);
> @@ -230,8 +231,9 @@ static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
>  	return err;
>  }
>  
> -static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
> -			       struct i2c_msg *msgs, int num)
> +static int tegra_bpmp_i2c_xfer_common(struct i2c_adapter *adapter,
> +				      struct i2c_msg *msgs, int num,
> +				      bool atomic)
>  {
>  	struct tegra_bpmp_i2c *i2c = i2c_get_adapdata(adapter);
>  	struct mrq_i2c_response response;
> @@ -253,7 +255,7 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
>  		return err;
>  	}
>  
> -	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response);
> +	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response, atomic);
>  	if (err < 0) {
>  		dev_err(i2c->dev, "failed to transfer message: %d\n", err);
>  		return err;
> @@ -268,6 +270,20 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
>  	return num;
>  }
>  
> +static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
> +			       struct i2c_msg *msgs, int num)
> +
> +{
> +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
> +}
> +
> +static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
> +				      struct i2c_msg *msgs, int num)
> +
> +{
> +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, true);
> +}
> +
>  static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
>  {
>  	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
> @@ -276,6 +292,7 @@ static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
>  
>  static const struct i2c_algorithm tegra_bpmp_i2c_algo = {
>  	.master_xfer = tegra_bpmp_i2c_xfer,
> +	.master_xfer_atomic = tegra_bpmp_i2c_xfer_atomic,
>  	.functionality = tegra_bpmp_i2c_func,
>  };
>  
> -- 
> 2.11.0
>
Stefan Lengfeld March 26, 2019, 8:20 p.m. UTC | #4
Hi Wolfram,

On Sat, Mar 02, 2019 at 02:47:34PM +0100, Wolfram Sang wrote:
> The driver did handle this internally, convert it to use the new
> callbacks.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>  drivers/i2c/busses/i2c-tegra-bpmp.c | 27 ++++++++++++++++++++++-----
>  1 file changed, 22 insertions(+), 5 deletions(-)
> 

[...]

> @@ -268,6 +270,20 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
>  	return num;
>  }
>  
> +static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
> +			       struct i2c_msg *msgs, int num)
> +
> +{
> +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
> +}
> +
> +static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
> +				      struct i2c_msg *msgs, int num)
> +

Here and between the function prototype of 'tegra_bpmp_i2c_xfer' and
it's function body is a unneeded blank line. Nitpick.

Kind regards,
    Stefan

> +{
> +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, true);
> +}
> +
>  static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
>  {
>  	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
> @@ -276,6 +292,7 @@ static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
>  
>  static const struct i2c_algorithm tegra_bpmp_i2c_algo = {
>  	.master_xfer = tegra_bpmp_i2c_xfer,
> +	.master_xfer_atomic = tegra_bpmp_i2c_xfer_atomic,
>  	.functionality = tegra_bpmp_i2c_func,
>  };
>  
> -- 
> 2.11.0
> 
>
Wolfram Sang March 27, 2019, 1:51 p.m. UTC | #5
> > +static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
> > +			       struct i2c_msg *msgs, int num)
> > +
> > +{
> > +	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
> > +}
> > +
> > +static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
> > +				      struct i2c_msg *msgs, int num)
> > +
> 
> Here and between the function prototype of 'tegra_bpmp_i2c_xfer' and
> it's function body is a unneeded blank line. Nitpick.

Thanks, fixed!

Patch
diff mbox series

diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c
index f6cd35d0a2ac..02b78ba5b23b 100644
--- a/drivers/i2c/busses/i2c-tegra-bpmp.c
+++ b/drivers/i2c/busses/i2c-tegra-bpmp.c
@@ -207,7 +207,8 @@  static int tegra_bpmp_i2c_msg_len_check(struct i2c_msg *msgs, unsigned int num)
 
 static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
 				   struct mrq_i2c_request *request,
-				   struct mrq_i2c_response *response)
+				   struct mrq_i2c_response *response,
+				   bool atomic)
 {
 	struct tegra_bpmp_message msg;
 	int err;
@@ -222,7 +223,7 @@  static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
 	msg.rx.data = response;
 	msg.rx.size = sizeof(*response);
 
-	if (irqs_disabled())
+	if (atomic)
 		err = tegra_bpmp_transfer_atomic(i2c->bpmp, &msg);
 	else
 		err = tegra_bpmp_transfer(i2c->bpmp, &msg);
@@ -230,8 +231,9 @@  static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
 	return err;
 }
 
-static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
-			       struct i2c_msg *msgs, int num)
+static int tegra_bpmp_i2c_xfer_common(struct i2c_adapter *adapter,
+				      struct i2c_msg *msgs, int num,
+				      bool atomic)
 {
 	struct tegra_bpmp_i2c *i2c = i2c_get_adapdata(adapter);
 	struct mrq_i2c_response response;
@@ -253,7 +255,7 @@  static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
 		return err;
 	}
 
-	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response);
+	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response, atomic);
 	if (err < 0) {
 		dev_err(i2c->dev, "failed to transfer message: %d\n", err);
 		return err;
@@ -268,6 +270,20 @@  static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
 	return num;
 }
 
+static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
+			       struct i2c_msg *msgs, int num)
+
+{
+	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
+}
+
+static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
+				      struct i2c_msg *msgs, int num)
+
+{
+	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, true);
+}
+
 static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
 {
 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
@@ -276,6 +292,7 @@  static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
 
 static const struct i2c_algorithm tegra_bpmp_i2c_algo = {
 	.master_xfer = tegra_bpmp_i2c_xfer,
+	.master_xfer_atomic = tegra_bpmp_i2c_xfer_atomic,
 	.functionality = tegra_bpmp_i2c_func,
 };