Add support for tachometer speed register for the next generation
systems MQMB7xx, MSN37xx, MSN34xx, MSN38xx.
All these systems support tachometer speed capability register.
This register is to be provided mlxreg-fan driver.
Signed-off-by: Vadim Pasternak <vadimp@xxxxxxxxxxxx>
---
drivers/platform/x86/mlx-platform.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index 48fa7573e29b..3f129a28ee43 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -72,6 +72,7 @@
#define MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET 0xf5
#define MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET 0xf6
#define MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET 0xf7
+#define MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET 0xf8
#define MLXPLAT_CPLD_LPC_IO_RANGE 0x100
#define MLXPLAT_CPLD_LPC_I2C_CH1_OFF 0xdb
#define MLXPLAT_CPLD_LPC_I2C_CH2_OFF 0xda
@@ -1339,6 +1340,10 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_fan_data[] = {
.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET,
.bit = BIT(3),
},
+ {
+ .label = "conf",
+ .capability = MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET,
+ },
};
static struct mlxreg_core_platform_data mlxplat_default_fan_data = {
@@ -1428,6 +1433,7 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg)
case MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET:
+ case MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET:
return true;
}
return false;
@@ -1484,6 +1490,7 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg)
case MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET:
+ case MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET:
return true;
}
return false;
--
2.11.0
