Re: [PATCH v3 3/5] mfd: max77759: add register bitmasks and modify irq configs for charger

From: Amit Sunil Dhamne
Date: Mon Jan 05 2026 - 14:58:39 EST



On 1/5/26 8:45 AM, André Draszik wrote:
On Sat, 2025-12-27 at 00:04 +0000, Amit Sunil Dhamne via B4 Relay wrote:
From: Amit Sunil Dhamne <amitsd@xxxxxxxxxx>

Add register bitmasks for charger function.
In addition split the charger IRQs further such that each bit represents
an IRQ downstream of charger regmap irq chip. In addition populate the
ack_base to offload irq ack to the regmap irq chip framework.

Signed-off-by: Amit Sunil Dhamne <amitsd@xxxxxxxxxx>
---
 drivers/mfd/max77759.c       |  91 +++++++++++++++++--
 include/linux/mfd/max77759.h | 202 ++++++++++++++++++++++++++++++++++++-------
 2 files changed, 256 insertions(+), 37 deletions(-)

[...]
diff --git a/include/linux/mfd/max77759.h b/include/linux/mfd/max77759.h
index c6face34e385..e674a519e782 100644
--- a/include/linux/mfd/max77759.h
+++ b/include/linux/mfd/max77759.h
@@ -59,35 +59,65 @@
 #define MAX77759_MAXQ_REG_AP_DATAIN0            0xb1
 #define MAX77759_MAXQ_REG_UIC_SWRST             0xe0
-#define MAX77759_CHGR_REG_CHG_INT               0xb0
-#define MAX77759_CHGR_REG_CHG_INT2              0xb1
-#define MAX77759_CHGR_REG_CHG_INT_MASK          0xb2
-#define MAX77759_CHGR_REG_CHG_INT2_MASK         0xb3
-#define MAX77759_CHGR_REG_CHG_INT_OK            0xb4
-#define MAX77759_CHGR_REG_CHG_DETAILS_00        0xb5
-#define MAX77759_CHGR_REG_CHG_DETAILS_01        0xb6
-#define MAX77759_CHGR_REG_CHG_DETAILS_02        0xb7
-#define MAX77759_CHGR_REG_CHG_DETAILS_03        0xb8
-#define MAX77759_CHGR_REG_CHG_CNFG_00           0xb9
-#define MAX77759_CHGR_REG_CHG_CNFG_01           0xba
-#define MAX77759_CHGR_REG_CHG_CNFG_02           0xbb
-#define MAX77759_CHGR_REG_CHG_CNFG_03           0xbc
-#define MAX77759_CHGR_REG_CHG_CNFG_04           0xbd
-#define MAX77759_CHGR_REG_CHG_CNFG_05           0xbe
-#define MAX77759_CHGR_REG_CHG_CNFG_06           0xbf
-#define MAX77759_CHGR_REG_CHG_CNFG_07           0xc0
-#define MAX77759_CHGR_REG_CHG_CNFG_08           0xc1
-#define MAX77759_CHGR_REG_CHG_CNFG_09           0xc2
-#define MAX77759_CHGR_REG_CHG_CNFG_10           0xc3
-#define MAX77759_CHGR_REG_CHG_CNFG_11           0xc4
-#define MAX77759_CHGR_REG_CHG_CNFG_12           0xc5
-#define MAX77759_CHGR_REG_CHG_CNFG_13           0xc6
-#define MAX77759_CHGR_REG_CHG_CNFG_14           0xc7
-#define MAX77759_CHGR_REG_CHG_CNFG_15           0xc8
-#define MAX77759_CHGR_REG_CHG_CNFG_16           0xc9
-#define MAX77759_CHGR_REG_CHG_CNFG_17           0xca
-#define MAX77759_CHGR_REG_CHG_CNFG_18           0xcb
-#define MAX77759_CHGR_REG_CHG_CNFG_19           0xcc
+#define MAX77759_CHGR_REG_CHG_INT                      0xb0
+#define   MAX77759_CHGR_REG_CHG_INT_AICL               BIT(7)
+#define   MAX77759_CHGR_REG_CHG_INT_CHGIN              BIT(6)
+#define   MAX77759_CHGR_REG_CHG_INT_WCIN               BIT(5)
+#define   MAX77759_CHGR_REG_CHG_INT_CHG                BIT(4)
+#define   MAX77759_CHGR_REG_CHG_INT_BAT                BIT(3)
+#define   MAX77759_CHGR_REG_CHG_INT_INLIM              BIT(2)
+#define   MAX77759_CHGR_REG_CHG_INT_THM2               BIT(1)
+#define   MAX77759_CHGR_REG_CHG_INT_BYP                BIT(0)
+#define MAX77759_CHGR_REG_CHG_INT2                     0xb1
+#define   MAX77759_CHGR_REG_CHG_INT2_INSEL             BIT(7)
+#define   MAX77759_CHGR_REG_CHG_INT2_SYS_UVLO1         BIT(6)
+#define   MAX77759_CHGR_REG_CHG_INT2_SYS_UVLO2         BIT(5)
+#define   MAX77759_CHGR_REG_CHG_INT2_BAT_OILO          BIT(4)
+#define   MAX77759_CHGR_REG_CHG_INT2_CHG_STA_CC        BIT(3)
+#define   MAX77759_CHGR_REG_CHG_INT2_CHG_STA_CV        BIT(2)
+#define   MAX77759_CHGR_REG_CHG_INT2_CHG_STA_TO        BIT(1)
+#define   MAX77759_CHGR_REG_CHG_INT2_CHG_STA_DONE      BIT(0)
+#define MAX77759_CHGR_REG_CHG_INT_MASK                 0xb2
+#define MAX77759_CHGR_REG_CHG_INT2_MASK                0xb3
+#define MAX77759_CHGR_REG_CHG_INT_OK                   0xb4
+#define MAX77759_CHGR_REG_CHG_DETAILS_00               0xb5
+#define   MAX77759_CHGR_REG_CHG_DETAILS_OO_CHGIN_DTLS  GENMASK(6, 5)
+#define MAX77759_CHGR_REG_CHG_DETAILS_01               0xb6
+#define   MAX77759_CHGR_REG_CHG_DETAILS_01_BAT_DTLS    GENMASK(6, 4)
+#define   MAX77759_CHGR_REG_CHG_DETAILS_01_CHG_DTLS    GENMASK(3, 0)
+#define MAX77759_CHGR_REG_CHG_DETAILS_02               0xb7
+#define   MAX77759_CHGR_REG_CHG_DETAILS_02_CHGIN_STS   BIT(5)
+#define MAX77759_CHGR_REG_CHG_DETAILS_03               0xb8
+#define MAX77759_CHGR_REG_CHG_CNFG_00                  0xb9
+#define   MAX77759_CHGR_REG_CHG_CNFG_00_MODE           GENMASK(3, 0)
+#define MAX77759_CHGR_REG_CHG_CNFG_01                  0xba
+#define MAX77759_CHGR_REG_CHG_CNFG_02                  0xbb
+#define   MAX77759_CHGR_REG_CHG_CNFG_02_CHGCC        GENMASK(5, 0)
Small nit - there seems to be a stray TAB in this line.

Will fix it in the next revision.


BR,

Amit


Other than that:
Reviewed-by: André Draszik <andre.draszik@xxxxxxxxxx>