arm: fsl: common: Improve NXP VID driver PMBus support
This patch adds support for more PMBus compatible devices to the NXP
drivers for its QorIQ family devices. At runtime, the voltage regulator is
queried over I2C, and the required voltage multiplier determined. This
change supports the DIRECT and LINEAR PMBus voltage reporting modes.
Previously, the driver only supported a few specific devices such as the
IR36021 and LTC3882, so this change allows the QorIQ series to be used
with a much larger variety of core voltage regulator devices.
checkpatch warning "Use if (IS_DEFINED (...))" was ignored to maintain
consistency with the existing code.
Signed-off-by: Stephen Carlson <stcarlso@linux.microsoft.com>
Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Tested-by: Wasim Khan <wasim.khan@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/include/configs/ls1088ardb.h b/include/configs/ls1088ardb.h
index f59a9f5..6f36dd4 100644
--- a/include/configs/ls1088ardb.h
+++ b/include/configs/ls1088ardb.h
@@ -203,7 +203,7 @@
#define CONFIG_SYS_LS_MC_BOOT_TIMEOUT_MS 5000
-#define I2C_MUX_CH_VOL_MONITOR 0xA
+#define I2C_MUX_CH_VOL_MONITOR 0xA
/* Voltage monitor on channel 2*/
#define I2C_VOL_MONITOR_ADDR 0x63
#define I2C_VOL_MONITOR_BUS_V_OFFSET 0x2
@@ -221,12 +221,6 @@
#define CONFIG_VOL_MONITOR_LTC3882_SET
#define CONFIG_VOL_MONITOR_LTC3882_READ
-/* PM Bus commands code for LTC3882*/
-#define PMBUS_CMD_PAGE 0x0
-#define PMBUS_CMD_READ_VOUT 0x8B
-#define PMBUS_CMD_PAGE_PLUS_WRITE 0x05
-#define PMBUS_CMD_VOUT_COMMAND 0x21
-
#define PWM_CHANNEL0 0x0
/*