Marvell Ethernet switches contain a temperature sensor. There appears to be one sensor, which is shared by each of the internal PHYs. Each PHY has independent registers to read this sensor, and to set a limit for when an alarm should be raised.
Some Marvell discrete PHY also have the same sensor and registers. Moving the HWMON code from DSA into the PHY makes the sensor available in discrete PHYs, and removes the layering violation, the switch driver poking around in PHY registers. While moving the code into the PHY driver, it has been re-written to use the new HWMON APIs. v2: Better Cover note explaining one sensor, but multiple independent registers Simply error checking. Andrew Lunn (2): phy: marvell: Add support for temperature sensor net: dsa: Remove hwmon support drivers/net/dsa/mv88e6xxx/chip.c | 154 ------------- drivers/net/dsa/mv88e6xxx/mv88e6xxx.h | 16 -- drivers/net/phy/marvell.c | 423 +++++++++++++++++++++++++++++++++- include/net/dsa.h | 8 - net/dsa/Kconfig | 11 - net/dsa/Makefile | 1 - net/dsa/dsa.c | 4 - net/dsa/dsa_priv.h | 9 - net/dsa/hwmon.c | 147 ------------ 9 files changed, 420 insertions(+), 353 deletions(-) delete mode 100644 net/dsa/hwmon.c -- 2.11.0
