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openwrt/target/linux/generic/backport-6.1/884-v6.5-mfd-axp20x-Add-support-for-AXP313a-PMIC.patch
Chukun Pan 85b156c113 generic: 6.1: backport AXP PMIC support 
Backport AXP15060, AXP313a and AXP192 support.
The AXP15060 PMIC is used for starfive boards,
and the AXP313a PMIC is used for sunxi boards.
Remove conflicting patches from starfive target.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
2024-03-26 21:56:57 +01:00

257 lines
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From 75c8cb2f4cb218aaf4ea68cab08d6dbc96eeae15 Mon Sep 17 00:00:00 2001
From: Martin Botka <martin.botka@somainline.org>
Date: Wed, 24 May 2023 01:00:10 +0100
Subject: [PATCH] mfd: axp20x: Add support for AXP313a PMIC
The AXP313a is a PMIC chip produced by X-Powers, it can be connected via
an I2C bus.
The name AXP1530 seems to appear as well, and this is what is used in
the BSP driver. From all we know it's the same chip, just a different
name. However we have only seen AXP313a chips in the wild, so go with
this name.
Compared to the other AXP PMICs it's a rather simple affair: just three
DCDC converters, three LDOs, and no battery charging support.
Describe the regmap and the MFD bits, along with the registers exposed
via I2C. Aside from the various regulators, also describe the power key
interrupts, and adjust the shutdown handler routine to use a different
register than the other PMICs.
Eventually advertise the device using the new compatible string.
Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20230524000012.15028-2-andre.przywara@arm.com
Signed-off-by: Lee Jones <lee@kernel.org>
---
drivers/mfd/axp20x-i2c.c | 2 +
drivers/mfd/axp20x.c | 78 +++++++++++++++++++++++++++++++++++++-
include/linux/mfd/axp20x.h | 32 ++++++++++++++++
3 files changed, 111 insertions(+), 1 deletion(-)
--- a/drivers/mfd/axp20x-i2c.c
+++ b/drivers/mfd/axp20x-i2c.c
@@ -64,6 +64,7 @@ static const struct of_device_id axp20x_
{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
+ { .compatible = "x-powers,axp313a", .data = (void *)AXP313A_ID },
{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
{ .compatible = "x-powers,axp15060", .data = (void *)AXP15060_ID },
@@ -78,6 +79,7 @@ static const struct i2c_device_id axp20x
{ "axp209", 0 },
{ "axp221", 0 },
{ "axp223", 0 },
+ { "axp313a", 0 },
{ "axp803", 0 },
{ "axp806", 0 },
{ "axp15060", 0 },
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -39,6 +39,7 @@ static const char * const axp20x_model_n
"AXP221",
"AXP223",
"AXP288",
+ "AXP313a",
"AXP803",
"AXP806",
"AXP809",
@@ -156,6 +157,25 @@ static const struct regmap_range axp806_
regmap_reg_range(AXP806_REG_ADDR_EXT, AXP806_REG_ADDR_EXT),
};
+static const struct regmap_range axp313a_writeable_ranges[] = {
+ regmap_reg_range(AXP313A_ON_INDICATE, AXP313A_IRQ_STATE),
+};
+
+static const struct regmap_range axp313a_volatile_ranges[] = {
+ regmap_reg_range(AXP313A_SHUTDOWN_CTRL, AXP313A_SHUTDOWN_CTRL),
+ regmap_reg_range(AXP313A_IRQ_STATE, AXP313A_IRQ_STATE),
+};
+
+static const struct regmap_access_table axp313a_writeable_table = {
+ .yes_ranges = axp313a_writeable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(axp313a_writeable_ranges),
+};
+
+static const struct regmap_access_table axp313a_volatile_table = {
+ .yes_ranges = axp313a_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(axp313a_volatile_ranges),
+};
+
static const struct regmap_range axp806_volatile_ranges[] = {
regmap_reg_range(AXP20X_IRQ1_STATE, AXP20X_IRQ2_STATE),
};
@@ -248,6 +268,11 @@ static const struct resource axp288_fuel
DEFINE_RES_IRQ(AXP288_IRQ_WL1),
};
+static const struct resource axp313a_pek_resources[] = {
+ DEFINE_RES_IRQ_NAMED(AXP313A_IRQ_PEK_RIS_EDGE, "PEK_DBR"),
+ DEFINE_RES_IRQ_NAMED(AXP313A_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
+};
+
static const struct resource axp803_pek_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP803_IRQ_PEK_RIS_EDGE, "PEK_DBR"),
DEFINE_RES_IRQ_NAMED(AXP803_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
@@ -304,6 +329,15 @@ static const struct regmap_config axp288
.cache_type = REGCACHE_RBTREE,
};
+static const struct regmap_config axp313a_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .wr_table = &axp313a_writeable_table,
+ .volatile_table = &axp313a_volatile_table,
+ .max_register = AXP313A_IRQ_STATE,
+ .cache_type = REGCACHE_RBTREE,
+};
+
static const struct regmap_config axp806_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -456,6 +490,16 @@ static const struct regmap_irq axp288_re
INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1),
};
+static const struct regmap_irq axp313a_regmap_irqs[] = {
+ INIT_REGMAP_IRQ(AXP313A, PEK_RIS_EDGE, 0, 7),
+ INIT_REGMAP_IRQ(AXP313A, PEK_FAL_EDGE, 0, 6),
+ INIT_REGMAP_IRQ(AXP313A, PEK_SHORT, 0, 5),
+ INIT_REGMAP_IRQ(AXP313A, PEK_LONG, 0, 4),
+ INIT_REGMAP_IRQ(AXP313A, DCDC3_V_LOW, 0, 3),
+ INIT_REGMAP_IRQ(AXP313A, DCDC2_V_LOW, 0, 2),
+ INIT_REGMAP_IRQ(AXP313A, DIE_TEMP_HIGH, 0, 0),
+};
+
static const struct regmap_irq axp803_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP803, ACIN_OVER_V, 0, 7),
INIT_REGMAP_IRQ(AXP803, ACIN_PLUGIN, 0, 6),
@@ -610,6 +654,17 @@ static const struct regmap_irq_chip axp2
};
+static const struct regmap_irq_chip axp313a_regmap_irq_chip = {
+ .name = "axp313a_irq_chip",
+ .status_base = AXP313A_IRQ_STATE,
+ .ack_base = AXP313A_IRQ_STATE,
+ .unmask_base = AXP313A_IRQ_EN,
+ .init_ack_masked = true,
+ .irqs = axp313a_regmap_irqs,
+ .num_irqs = ARRAY_SIZE(axp313a_regmap_irqs),
+ .num_regs = 1,
+};
+
static const struct regmap_irq_chip axp803_regmap_irq_chip = {
.name = "axp803",
.status_base = AXP20X_IRQ1_STATE,
@@ -752,6 +807,11 @@ static const struct mfd_cell axp152_cell
},
};
+static struct mfd_cell axp313a_cells[] = {
+ MFD_CELL_NAME("axp20x-regulator"),
+ MFD_CELL_RES("axp313a-pek", axp313a_pek_resources),
+};
+
static const struct resource axp288_adc_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP288_IRQ_GPADC, "GPADC"),
};
@@ -921,8 +981,18 @@ static const struct mfd_cell axp_regulat
static int axp20x_power_off(struct sys_off_data *data)
{
struct axp20x_dev *axp20x = data->cb_data;
+ unsigned int shutdown_reg;
- regmap_write(axp20x->regmap, AXP20X_OFF_CTRL, AXP20X_OFF);
+ switch (axp20x->variant) {
+ case AXP313A_ID:
+ shutdown_reg = AXP313A_SHUTDOWN_CTRL;
+ break;
+ default:
+ shutdown_reg = AXP20X_OFF_CTRL;
+ break;
+ }
+
+ regmap_write(axp20x->regmap, shutdown_reg, AXP20X_OFF);
/* Give capacitors etc. time to drain to avoid kernel panic msg. */
mdelay(500);
@@ -985,6 +1055,12 @@ int axp20x_match_device(struct axp20x_de
axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
axp20x->irq_flags = IRQF_TRIGGER_LOW;
break;
+ case AXP313A_ID:
+ axp20x->nr_cells = ARRAY_SIZE(axp313a_cells);
+ axp20x->cells = axp313a_cells;
+ axp20x->regmap_cfg = &axp313a_regmap_config;
+ axp20x->regmap_irq_chip = &axp313a_regmap_irq_chip;
+ break;
case AXP803_ID:
axp20x->nr_cells = ARRAY_SIZE(axp803_cells);
axp20x->cells = axp803_cells;
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -17,6 +17,7 @@ enum axp20x_variants {
AXP221_ID,
AXP223_ID,
AXP288_ID,
+ AXP313A_ID,
AXP803_ID,
AXP806_ID,
AXP809_ID,
@@ -92,6 +93,17 @@ enum axp20x_variants {
#define AXP22X_ALDO3_V_OUT 0x2a
#define AXP22X_CHRG_CTRL3 0x35
+#define AXP313A_ON_INDICATE 0x00
+#define AXP313A_OUTPUT_CONTROL 0x10
+#define AXP313A_DCDC1_CONRTOL 0x13
+#define AXP313A_DCDC2_CONRTOL 0x14
+#define AXP313A_DCDC3_CONRTOL 0x15
+#define AXP313A_ALDO1_CONRTOL 0x16
+#define AXP313A_DLDO1_CONRTOL 0x17
+#define AXP313A_SHUTDOWN_CTRL 0x1a
+#define AXP313A_IRQ_EN 0x20
+#define AXP313A_IRQ_STATE 0x21
+
#define AXP806_STARTUP_SRC 0x00
#define AXP806_CHIP_ID 0x03
#define AXP806_PWR_OUT_CTRL1 0x10
@@ -364,6 +376,16 @@ enum {
};
enum {
+ AXP313A_DCDC1 = 0,
+ AXP313A_DCDC2,
+ AXP313A_DCDC3,
+ AXP313A_ALDO1,
+ AXP313A_DLDO1,
+ AXP313A_RTC_LDO,
+ AXP313A_REG_ID_MAX,
+};
+
+enum {
AXP806_DCDCA = 0,
AXP806_DCDCB,
AXP806_DCDCC,
@@ -616,6 +638,16 @@ enum axp288_irqs {
AXP288_IRQ_BC_USB_CHNG,
};
+enum axp313a_irqs {
+ AXP313A_IRQ_DIE_TEMP_HIGH,
+ AXP313A_IRQ_DCDC2_V_LOW = 2,
+ AXP313A_IRQ_DCDC3_V_LOW,
+ AXP313A_IRQ_PEK_LONG,
+ AXP313A_IRQ_PEK_SHORT,
+ AXP313A_IRQ_PEK_FAL_EDGE,
+ AXP313A_IRQ_PEK_RIS_EDGE,
+};
+
enum axp803_irqs {
AXP803_IRQ_ACIN_OVER_V = 1,
AXP803_IRQ_ACIN_PLUGIN,
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