diff mbox series

[net-next,2/5] net: phy: marvell: fix HWMON enable register for 6390

Message ID 20210413075538.30175-3-kabel@kernel.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: phy: marvell: some HWMON updates | expand

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netdev/apply fail Patch does not apply to net-next
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Commit Message

Marek Behún April 13, 2021, 7:55 a.m. UTC
Register 27_6.15:14 has the following description in 88E6393X
documentation:
  Temperature Sensor Enable
    0x0 - Sample every 1s
    0x1 - Sense rate decided by bits 10:8 of this register
    0x2 - Use 26_6.5 (One shot Temperature Sample) to enable
    0x3 - Disable

This is compatible with how the 6390 code uses this register currently,
but the 6390 code handles it as two 1-bit registers (somewhat), instead
of one register with 4 possible values.

Rename this register and define all 4 values according to 6393X
documentation.

Signed-off-by: Marek Behún <kabel@kernel.org>
---
 drivers/net/phy/marvell.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

Comments

Andrew Lunn April 13, 2021, 2:25 p.m. UTC | #1
On Tue, Apr 13, 2021 at 09:55:35AM +0200, Marek Behún wrote:
> Register 27_6.15:14 has the following description in 88E6393X
> documentation:
>   Temperature Sensor Enable
>     0x0 - Sample every 1s
>     0x1 - Sense rate decided by bits 10:8 of this register
>     0x2 - Use 26_6.5 (One shot Temperature Sample) to enable
>     0x3 - Disable
> 
> This is compatible with how the 6390 code uses this register currently,
> but the 6390 code handles it as two 1-bit registers (somewhat), instead
> of one register with 4 possible values.
> 
> Rename this register and define all 4 values according to 6393X
> documentation.
> 
> Signed-off-by: Marek Behún <kabel@kernel.org>
> ---
>  drivers/net/phy/marvell.c | 19 +++++++++----------
>  1 file changed, 9 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
> index 63788d5c13eb..bae2a225b550 100644
> --- a/drivers/net/phy/marvell.c
> +++ b/drivers/net/phy/marvell.c
> @@ -113,11 +113,11 @@
>  #define MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN		BIT(9)
>  
>  #define MII_88E6390_MISC_TEST		0x1b
> -#define MII_88E6390_MISC_TEST_SAMPLE_1S		0
> -#define MII_88E6390_MISC_TEST_SAMPLE_10MS	BIT(14)
> -#define MII_88E6390_MISC_TEST_SAMPLE_DISABLE	BIT(15)
> -#define MII_88E6390_MISC_TEST_SAMPLE_ENABLE	0
> -#define MII_88E6390_MISC_TEST_SAMPLE_MASK	(0x3 << 14)
> +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_SAMPLE_1S	(0x0 << 14)
> +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE		(0x1 << 14)
> +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_ONESHOT	(0x2 << 14)
> +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE		(0x3 << 14)
> +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK			(0x3 << 14)
>  
>  #define MII_88E6390_TEMP_SENSOR		0x1c
>  #define MII_88E6390_TEMP_SENSOR_MASK	0xff
> @@ -2352,9 +2352,8 @@ static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
>  	if (ret < 0)
>  		goto error;
>  
> -	ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
> -	ret |= MII_88E6390_MISC_TEST_SAMPLE_ENABLE |
> -		MII_88E6390_MISC_TEST_SAMPLE_1S;
> +	ret = ret & ~MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK;
> +	ret |= MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_SAMPLE_1S;

So this is identical

>  
>  	ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
>  	if (ret < 0)
> @@ -2381,8 +2380,8 @@ static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
>  	if (ret < 0)
>  		goto error;
>  
> -	ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
> -	ret |= MII_88E6390_MISC_TEST_SAMPLE_DISABLE;
> +	ret = ret & ~MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK;
> +	ret |= MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE;

And here we have gone from 0x2 to 0x3?

Have you checked the 6390 datasheet for this?

I will test these patches later.

     Andrew
Marek Behún April 13, 2021, 3:12 p.m. UTC | #2
On Tue, 13 Apr 2021 16:25:33 +0200
Andrew Lunn <andrew@lunn.ch> wrote:

> On Tue, Apr 13, 2021 at 09:55:35AM +0200, Marek Behún wrote:
> > Register 27_6.15:14 has the following description in 88E6393X
> > documentation:
> >   Temperature Sensor Enable
> >     0x0 - Sample every 1s
> >     0x1 - Sense rate decided by bits 10:8 of this register
> >     0x2 - Use 26_6.5 (One shot Temperature Sample) to enable
> >     0x3 - Disable
> > 
> > This is compatible with how the 6390 code uses this register currently,
> > but the 6390 code handles it as two 1-bit registers (somewhat), instead
> > of one register with 4 possible values.
> > 
> > Rename this register and define all 4 values according to 6393X
> > documentation.
> > 
> > Signed-off-by: Marek Behún <kabel@kernel.org>
> > ---
> >  drivers/net/phy/marvell.c | 19 +++++++++----------
> >  1 file changed, 9 insertions(+), 10 deletions(-)
> > 
> > diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
> > index 63788d5c13eb..bae2a225b550 100644
> > --- a/drivers/net/phy/marvell.c
> > +++ b/drivers/net/phy/marvell.c
> > @@ -113,11 +113,11 @@
> >  #define MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN		BIT(9)
> >  
> >  #define MII_88E6390_MISC_TEST		0x1b
> > -#define MII_88E6390_MISC_TEST_SAMPLE_1S		0
> > -#define MII_88E6390_MISC_TEST_SAMPLE_10MS	BIT(14)
> > -#define MII_88E6390_MISC_TEST_SAMPLE_DISABLE	BIT(15)
> > -#define MII_88E6390_MISC_TEST_SAMPLE_ENABLE	0
> > -#define MII_88E6390_MISC_TEST_SAMPLE_MASK	(0x3 << 14)
> > +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_SAMPLE_1S	(0x0 << 14)
> > +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE		(0x1 << 14)
> > +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_ONESHOT	(0x2 << 14)
> > +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE		(0x3 << 14)
> > +#define MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK			(0x3 << 14)
> >  
> >  #define MII_88E6390_TEMP_SENSOR		0x1c
> >  #define MII_88E6390_TEMP_SENSOR_MASK	0xff
> > @@ -2352,9 +2352,8 @@ static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
> >  	if (ret < 0)
> >  		goto error;
> >  
> > -	ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
> > -	ret |= MII_88E6390_MISC_TEST_SAMPLE_ENABLE |
> > -		MII_88E6390_MISC_TEST_SAMPLE_1S;
> > +	ret = ret & ~MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK;
> > +	ret |= MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_SAMPLE_1S;  
> 
> So this is identical
> 
> >  
> >  	ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
> >  	if (ret < 0)
> > @@ -2381,8 +2380,8 @@ static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
> >  	if (ret < 0)
> >  		goto error;
> >  
> > -	ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
> > -	ret |= MII_88E6390_MISC_TEST_SAMPLE_DISABLE;
> > +	ret = ret & ~MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK;
> > +	ret |= MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE;  
> 
> And here we have gone from 0x2 to 0x3?
> 
> Have you checked the 6390 datasheet for this?
> 
> I will test these patches later.
> 
>      Andrew

The 6390 datasheet does not contain specification for temperature
sensor anymore. I will look into older versions.
diff mbox series

Patch

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 63788d5c13eb..bae2a225b550 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -113,11 +113,11 @@ 
 #define MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN		BIT(9)
 
 #define MII_88E6390_MISC_TEST		0x1b
-#define MII_88E6390_MISC_TEST_SAMPLE_1S		0
-#define MII_88E6390_MISC_TEST_SAMPLE_10MS	BIT(14)
-#define MII_88E6390_MISC_TEST_SAMPLE_DISABLE	BIT(15)
-#define MII_88E6390_MISC_TEST_SAMPLE_ENABLE	0
-#define MII_88E6390_MISC_TEST_SAMPLE_MASK	(0x3 << 14)
+#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_SAMPLE_1S	(0x0 << 14)
+#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE		(0x1 << 14)
+#define MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_ONESHOT	(0x2 << 14)
+#define MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE		(0x3 << 14)
+#define MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK			(0x3 << 14)
 
 #define MII_88E6390_TEMP_SENSOR		0x1c
 #define MII_88E6390_TEMP_SENSOR_MASK	0xff
@@ -2352,9 +2352,8 @@  static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
 	if (ret < 0)
 		goto error;
 
-	ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
-	ret |= MII_88E6390_MISC_TEST_SAMPLE_ENABLE |
-		MII_88E6390_MISC_TEST_SAMPLE_1S;
+	ret = ret & ~MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK;
+	ret |= MII_88E6390_MISC_TEST_TEMP_SENSOR_ENABLE_SAMPLE_1S;
 
 	ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
 	if (ret < 0)
@@ -2381,8 +2380,8 @@  static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
 	if (ret < 0)
 		goto error;
 
-	ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
-	ret |= MII_88E6390_MISC_TEST_SAMPLE_DISABLE;
+	ret = ret & ~MII_88E6390_MISC_TEST_TEMP_SENSOR_MASK;
+	ret |= MII_88E6390_MISC_TEST_TEMP_SENSOR_DISABLE;
 
 	ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);