aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/platform/x86/mlx-platform.c
diff options
context:
space:
mode:
authorVadim Pasternak <vadimp@mellanox.com>2018-12-12 23:59:11 +0000
committerDarren Hart (VMware) <dvhart@infradead.org>2019-01-26 11:08:25 -0800
commitaff475804f608c5375dc1c5df6f0fdeb63459ccb (patch)
treeb8844fde64bd4dbaa905dc3ed9b4be43a063f07a /drivers/platform/x86/mlx-platform.c
parentDocumentation/ABI: Correct mlxreg-io KernelVersion for 5.0 (diff)
downloadlinux-dev-aff475804f608c5375dc1c5df6f0fdeb63459ccb.tar.xz
linux-dev-aff475804f608c5375dc1c5df6f0fdeb63459ccb.zip
platform/x86: mlx-platform: Add support for fan direction register
Provide support for the fan direction register. This register shows configuration for system fans direction, which could be forward or reversed. For forward direction - relevant bit is set 0; For reversed direction - relevant bit is set 1. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Diffstat (limited to 'drivers/platform/x86/mlx-platform.c')
-rw-r--r--drivers/platform/x86/mlx-platform.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index df3fcd36776a..3b795680d81c 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -33,6 +33,7 @@
#define MLXPLAT_CPLD_LPC_REG_LED3_OFFSET 0x22
#define MLXPLAT_CPLD_LPC_REG_LED4_OFFSET 0x23
#define MLXPLAT_CPLD_LPC_REG_LED5_OFFSET 0x24
+#define MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION 0x2a
#define MLXPLAT_CPLD_LPC_REG_GP1_OFFSET 0x30
#define MLXPLAT_CPLD_LPC_REG_WP1_OFFSET 0x31
#define MLXPLAT_CPLD_LPC_REG_GP2_OFFSET 0x32
@@ -1184,6 +1185,12 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_regs_io_data[] = {
.bit = 1,
.mode = 0444,
},
+ {
+ .label = "fan_dir",
+ .reg = MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION,
+ .bit = GENMASK(7, 0),
+ .mode = 0200,
+ },
};
static struct mlxreg_core_platform_data mlxplat_default_ng_regs_io_data = {
@@ -1307,6 +1314,7 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg)
case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
+ case MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION:
case MLXPLAT_CPLD_LPC_REG_GP1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_WP1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_GP2_OFFSET:
@@ -1360,6 +1368,7 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg)
case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
+ case MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION:
case MLXPLAT_CPLD_LPC_REG_GP1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_GP2_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET: