iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

platform/x86: mlx-platform: Add support for tachometer speed register

Browse Source 
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@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Vadim Pasternak 2019-03-18 10:58:22 +00:00 committed by Andy Shevchenko
parent 1357dfd726
commit 584814af9f
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/platform/x86/mlx-platform.c
View File

@ -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;