linux-kernel - [PATCH mfd v1 2/2] mfd: rsmu: add FemtoClock3 support

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Message-ID:
 <LV3P220MB12021E4DC88EAF37705EABB4A0192@LV3P220MB1202.NAMP220.PROD.OUTLOOK.COM>
Date: Wed,  1 May 2024 12:04:58 -0400
From: Min Li <lnimi@...mail.com>
To: lee@...nel.org
Cc: linux-kernel@...r.kernel.org,
	Min Li <min.li.xe@...esas.com>
Subject: [PATCH mfd v1 2/2] mfd: rsmu: add FemtoClock3 support

From: Min Li <min.li.xe@...esas.com>

The RENESAS FemtoClock3 Wireless is a high-performance
jitter attenuator, frequency translator, and clock
synthesizer. This patch only adds I2C bus access for
FemtoClock3 through REGMAP.

Signed-off-by: Min Li <min.li.xe@...esas.com>
---
 drivers/mfd/rsmu_core.c  | 10 +++++-----
 drivers/mfd/rsmu_i2c.c   | 16 ++++++++--------
 include/linux/mfd/rsmu.h |  4 ++--
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/mfd/rsmu_core.c b/drivers/mfd/rsmu_core.c
index 29437fd0b..951ddd92c 100644
--- a/drivers/mfd/rsmu_core.c
+++ b/drivers/mfd/rsmu_core.c
@@ -40,12 +40,12 @@ static struct mfd_cell rsmu_sabre_devs[] = {
 	},
 };
 
-static struct mfd_cell rsmu_sl_devs[] = {
+static struct mfd_cell rsmu_fc3_devs[] = {
 	[RSMU_PHC] = {
-		.name = "8v19n85x-phc",
+		.name = "rc38xxx-phc",
 	},
 	[RSMU_CDEV] = {
-		.name = "8v19n85x-cdev",
+		.name = "rc38xxx-cdev",
 	},
 };
 
@@ -61,8 +61,8 @@ int rsmu_core_init(struct rsmu_ddata *rsmu)
 	case RSMU_SABRE:
 		cells = rsmu_sabre_devs;
 		break;
-	case RSMU_SL:
-		cells = rsmu_sl_devs;
+	case RSMU_FC3:
+		cells = rsmu_fc3_devs;
 		break;
 	default:
 		dev_err(rsmu->dev, "Unsupported RSMU device type: %d\n", rsmu->type);
diff --git a/drivers/mfd/rsmu_i2c.c b/drivers/mfd/rsmu_i2c.c
index cba64f107..a3f50a184 100644
--- a/drivers/mfd/rsmu_i2c.c
+++ b/drivers/mfd/rsmu_i2c.c
@@ -262,11 +262,11 @@ static const struct regmap_config rsmu_sabre_regmap_config = {
 	.can_multi_write = true,
 };
 
-static const struct regmap_config rsmu_sl_regmap_config = {
+static const struct regmap_config rsmu_fc3_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.reg_format_endian = REGMAP_ENDIAN_BIG,
-	.max_register = 0x340,
+	.max_register = 0xE88,
 	.cache_type = REGCACHE_NONE,
 	.can_multi_write = true,
 };
@@ -302,8 +302,8 @@ static int rsmu_i2c_probe(struct i2c_client *client)
 	case RSMU_SABRE:
 		cfg = &rsmu_sabre_regmap_config;
 		break;
-	case RSMU_SL:
-		cfg = &rsmu_sl_regmap_config;
+	case RSMU_FC3:
+		cfg = &rsmu_fc3_regmap_config;
 		break;
 	default:
 		dev_err(rsmu->dev, "Unsupported RSMU device type: %d\n", rsmu->type);
@@ -336,8 +336,8 @@ static const struct i2c_device_id rsmu_i2c_id[] = {
 	{ "8a34001",  RSMU_CM },
 	{ "82p33810", RSMU_SABRE },
 	{ "82p33811", RSMU_SABRE },
-	{ "8v19n850", RSMU_SL },
-	{ "8v19n851", RSMU_SL },
+	{ "rc38xxx0", RSMU_FC3 },
+	{ "rc38xxx1", RSMU_FC3 },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, rsmu_i2c_id);
@@ -347,8 +347,8 @@ static const struct of_device_id rsmu_i2c_of_match[] = {
 	{ .compatible = "idt,8a34001",  .data = (void *)RSMU_CM },
 	{ .compatible = "idt,82p33810", .data = (void *)RSMU_SABRE },
 	{ .compatible = "idt,82p33811", .data = (void *)RSMU_SABRE },
-	{ .compatible = "idt,8v19n850", .data = (void *)RSMU_SL },
-	{ .compatible = "idt,8v19n851", .data = (void *)RSMU_SL },
+	{ .compatible = "idt,rc38xxx0", .data = (void *)RSMU_FC3 },
+	{ .compatible = "idt,rc38xxx1", .data = (void *)RSMU_FC3 },
 	{}
 };
 MODULE_DEVICE_TABLE(of, rsmu_i2c_of_match);
diff --git a/include/linux/mfd/rsmu.h b/include/linux/mfd/rsmu.h
index 0379aa207..b4a90fc81 100644
--- a/include/linux/mfd/rsmu.h
+++ b/include/linux/mfd/rsmu.h
@@ -11,11 +11,11 @@
 #define RSMU_MAX_WRITE_COUNT	(255)
 #define RSMU_MAX_READ_COUNT	(255)
 
-/* The supported devices are ClockMatrix, Sabre and SnowLotus */
+/* The supported devices are ClockMatrix, Sabre and FemtoClock3 */
 enum rsmu_type {
 	RSMU_CM		= 0x34000,
 	RSMU_SABRE	= 0x33810,
-	RSMU_SL		= 0x19850,
+	RSMU_FC3	= 0x38312,
 };
 
 /**
-- 
2.39.2