platform/x86: mlx-platform: Fix power cable setting for msn21xx family

Add dedicated structure with power cable setting for Mellanox msn21xx
family. These systems do not have a physical device for the power unit
controller. When the power cable is inserted or removed, the relevant
interrupt signal is handled, the status is updated, but no device is
associated with the signal.

Add definition for interrupt low aggregation signal. On system from
msn21xx family, low aggregation mask should be removed in order to allow
signal to hit CPU.

Fixes: 6613d18e9038 ("platform/x86: mlx-platform: Move module from arch/x86")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>

1 files changed, 21 insertions, 2 deletions

diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index 2e9f9e4302b2..e87fe34eadf5 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -77,6 +77,8 @@
 #define MLXPLAT_CPLD_AGGR_FAN_MASK_DEF  0x40
 #define MLXPLAT_CPLD_AGGR_MASK_DEF      (MLXPLAT_CPLD_AGGR_PSU_MASK_DEF | \
                                          MLXPLAT_CPLD_AGGR_FAN_MASK_DEF)
+#define MLXPLAT_CPLD_AGGR_MASK_NG_DEF   0x04
+#define MLXPLAT_CPLD_LOW_AGGR_MASK_LOW  0xc0
 #define MLXPLAT_CPLD_AGGR_MASK_MSN21XX  0x04
 #define MLXPLAT_CPLD_PSU_MASK           GENMASK(1, 0)
 #define MLXPLAT_CPLD_PWR_MASK           GENMASK(1, 0)
@@ -295,14 +297,29 @@ struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_default_data = {
         .mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
 };
 
+static struct mlxreg_core_data mlxplat_mlxcpld_msn21xx_pwr_items_data[] = {
+        {
+                .label = "pwr1",
+                .reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
+                .mask = BIT(0),
+                .hpdev.nr = MLXPLAT_CPLD_NR_NONE,
+        },
+        {
+                .label = "pwr2",
+                .reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
+                .mask = BIT(1),
+                .hpdev.nr = MLXPLAT_CPLD_NR_NONE,
+        },
+};
+
 /* Platform hotplug MSN21xx system family data */
 static struct mlxreg_core_item mlxplat_mlxcpld_msn21xx_items[] = {
         {
-                .data = mlxplat_mlxcpld_default_pwr_items_data,
+                .data = mlxplat_mlxcpld_msn21xx_pwr_items_data,
                 .aggr_mask = MLXPLAT_CPLD_AGGR_PWR_MASK_DEF,
                 .reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
                 .mask = MLXPLAT_CPLD_PWR_MASK,
-                .count = ARRAY_SIZE(mlxplat_mlxcpld_pwr),
+                .count = ARRAY_SIZE(mlxplat_mlxcpld_msn21xx_pwr_items_data),
                 .inversed = 0,
                 .health = false,
         },
@@ -314,6 +331,8 @@ struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn21xx_data = {
         .counter = ARRAY_SIZE(mlxplat_mlxcpld_msn21xx_items),
         .cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
         .mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
+        .cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
+        .mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
 };
 
 static bool mlxplat_mlxcpld_writeable_reg(struct device *dev, unsigned int reg)