linux-kernel - [PATCH] mfd: axp20x: AXP717: Add type-C CC registers

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Message-ID: <20251225080241.3153453-1-wens@kernel.org>
Date: Thu, 25 Dec 2025 16:02:40 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Lee Jones <lee@...nel.org>
Cc: Chen-Yu Tsai <wens@...nel.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>,
	Andre Przywara <andre.przywara@....com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: axp20x: AXP717: Add type-C CC registers

The AXP717 has some extra registers related to type-C CC pin
negotiation. They were missing from the original submission.

Add them for completeness.

Signed-off-by: Chen-Yu Tsai <wens@...nel.org>
---
 drivers/mfd/axp20x.c       | 5 ++++-
 include/linux/mfd/axp20x.h | 3 +++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index c5f0ebae327f..679364189ea5 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -229,6 +229,8 @@ static const struct regmap_range axp717_writeable_ranges[] = {
 	regmap_reg_range(AXP717_DCDC_OUTPUT_CONTROL, AXP717_CPUSLDO_CONTROL),
 	regmap_reg_range(AXP717_ADC_CH_EN_CONTROL, AXP717_ADC_CH_EN_CONTROL),
 	regmap_reg_range(AXP717_ADC_DATA_SEL, AXP717_ADC_DATA_SEL),
+	regmap_reg_range(AXP717_TYPEC_CC_AA_EN, AXP717_TYPEC_CC_AA_EN),
+	regmap_reg_range(AXP717_TYPEC_CC_MODE_CONTROL, AXP717_TYPEC_CC_MODE_CONTROL),
 };
 
 static const struct regmap_range axp717_volatile_ranges[] = {
@@ -237,6 +239,7 @@ static const struct regmap_range axp717_volatile_ranges[] = {
 	regmap_reg_range(AXP717_BATT_PERCENT_DATA, AXP717_BATT_PERCENT_DATA),
 	regmap_reg_range(AXP717_BATT_V_H, AXP717_BATT_CHRG_I_L),
 	regmap_reg_range(AXP717_ADC_DATA_H, AXP717_ADC_DATA_L),
+	regmap_reg_range(AXP717_TYPEC_CC_STATUS, AXP717_TYPEC_CC_STATUS),
 };
 
 static const struct regmap_access_table axp717_writeable_table = {
@@ -458,7 +461,7 @@ static const struct regmap_config axp717_regmap_config = {
 	.val_bits = 8,
 	.wr_table = &axp717_writeable_table,
 	.volatile_table = &axp717_volatile_table,
-	.max_register = AXP717_ADC_DATA_L,
+	.max_register = AXP717_TYPEC_CC_STATUS,
 	.cache_type = REGCACHE_MAPLE,
 };
 
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 3c5aecf1d4b5..b352661d99a1 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -174,6 +174,9 @@ enum axp20x_variants {
 #define AXP717_ADC_DATA_SEL		0xcd
 #define AXP717_ADC_DATA_H		0xce
 #define AXP717_ADC_DATA_L		0xcf
+#define AXP717_TYPEC_CC_AA_EN		0xe1
+#define AXP717_TYPEC_CC_MODE_CONTROL	0xe3
+#define AXP717_TYPEC_CC_STATUS		0xe7
 
 #define AXP806_STARTUP_SRC		0x00
 #define AXP806_CHIP_ID			0x03
-- 
2.47.3