On Tue, 13 Apr 2021 16:25:33 +0200
Andrew Lunn <and...@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 <ka...@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.

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