diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-10-21 16:09:54 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-10-24 21:06:12 -0700 |
| commit | f8810ca7582933e436e6c987808bbcc14f5543df (patch) | |
| tree | ae0cf56353b44188f2c87e59835c0154d4d4e491 /drivers/net/phy/sfp.c | |
| parent | 18cc659e95ab1661254bde815fc9345246d98906 (diff) | |
net: sfp: ignore power level 3 prior to SFF-8472 Rev 11.4
Power level 3 was included in SFF-8472 revision 11.9, but this does
not have a compliance code. Use revision 11.4 as the minimum
compliance level instead.
This should avoid any spurious indication of 2W modules.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/phy/sfp.c')
| -rw-r--r-- | drivers/net/phy/sfp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index a7635b02524a..af676e28ba6a 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -1764,7 +1764,9 @@ static int sfp_module_parse_power(struct sfp *sfp) if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV10_2 && sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL)) power_mW = 1500; - if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) + /* Added in Rev 11.9, but there is no compliance code for this */ + if (sfp->id.ext.sff8472_compliance >= SFP_SFF8472_COMPLIANCE_REV11_4 && + sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL)) power_mW = 2000; /* Power level 1 modules (max. 1W) are always supported. */ |