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From: "Thomas Richard (congatec GmbH)" <thomas.richard@bootlin.com>
To: Lee Jones <lee@kernel.org>, Andi Shyti <andi.shyti@kernel.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	 Werner Gartner <Werner.Gartner@congatec.com>,
	mfd@lists.linux.dev,  linux-kernel@vger.kernel.org,
	linux-i2c@vger.kernel.org,
	 "Thomas Richard (congatec GmbH)" <thomas.richard@bootlin.com>
Subject: [PATCH v4 7/9] mfd: cgbc: Add virtual I2C bus support
Date: Fri, 02 Oct 2026 13:12:45 +0200	[thread overview]
Message-ID: <20261002-cgbc-i2c-storage-devices-support-v4-7-eb42e0f1df59@bootlin.com> (raw)
In-Reply-To: <20261002-cgbc-i2c-storage-devices-support-v4-0-eb42e0f1df59@bootlin.com>

Internally the Board Controller has a virtual I2C bus with some virtual
storage devices (EEPROM and RAM). So add a new I2C cell for this I2C
virtual bus.

Signed-off-by: Thomas Richard (congatec GmbH) <thomas.richard@bootlin.com>
---
 drivers/mfd/cgbc-core.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/mfd/cgbc-core.c b/drivers/mfd/cgbc-core.c
index a58d9ffdc277..030e7eaf1dc3 100644
--- a/drivers/mfd/cgbc-core.c
+++ b/drivers/mfd/cgbc-core.c
@@ -65,6 +65,12 @@ static const struct cgbc_i2c_platform_data cgbc_i2c_ddc0_pdata = {
 	.cgbc_bus_id = 4,
 };
 
+static const struct cgbc_i2c_platform_data cgbc_i2c_i2cv_pdata = {
+	.name  = "cgbc-i2cv",
+	.cgbc_bus_id = 3,
+	.fixed_freq = true,
+};
+
 static const struct mfd_cell cgbc_devs[] = {
 	MFD_CELL_NAME("cgbc-backlight"),
 	MFD_CELL_NAME("cgbc-gpio"),
@@ -79,6 +85,11 @@ static const struct mfd_cell cgbc_devs[] = {
 		.platform_data = &cgbc_i2c_ddc0_pdata,
 		.pdata_size = sizeof(cgbc_i2c_ddc0_pdata),
 	},
+	{
+		.name = "cgbc-i2c",
+		.platform_data = &cgbc_i2c_i2cv_pdata,
+		.pdata_size = sizeof(cgbc_i2c_i2cv_pdata),
+	},
 	MFD_CELL_NAME("cgbc-wdt"),
 };
 

-- 
2.53.0


  parent reply	other threads:[~2026-10-02 11:13 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-02 11:12 [PATCH v4 0/9] Congatec Board Controller: Add storage devices support Thomas Richard (congatec GmbH)
2026-10-02 11:12 ` [PATCH v4 1/9] mfd: cgbc: Fix use of negative error code as valid session handle Thomas Richard (congatec GmbH)
2026-10-15 15:19   ` Lee Jones
2026-10-15 17:53     ` Thomas Richard
2026-10-02 11:12 ` [PATCH v4 2/9] mfd: cgbc: Add I2C platform data Thomas Richard (congatec GmbH)
2026-10-02 11:12 ` [PATCH v4 3/9] i2c: cgbc: Use plateform data to get bus ID and adapter name Thomas Richard (congatec GmbH)
2026-10-02 11:12 ` [PATCH v4 4/9] mfd: cgbc: Use PLATFORM_DEVID_AUTO for child device registration Thomas Richard (congatec GmbH)
2026-10-15 15:27   ` Lee Jones
2026-10-15 17:48     ` Thomas Richard
2026-10-16  6:47       ` Lee Jones
2026-10-02 11:12 ` [PATCH v4 5/9] mfd: cgbc: Use real I2C bus names Thomas Richard (congatec GmbH)
2026-10-15 15:27   ` Lee Jones
2026-10-15 17:23     ` Thomas Richard
2026-10-02 11:12 ` [PATCH v4 6/9] i2c: cgbc: Add support for fixed frequency buses Thomas Richard (congatec GmbH)
2026-10-02 11:12 ` Thomas Richard (congatec GmbH) [this message]
2026-10-02 11:12 ` [PATCH v4 8/9] mfd: cgbc: Add virtual storage devices on the virtual I2C bus Thomas Richard (congatec GmbH)
2026-10-02 11:12 ` [PATCH v4 9/9] i2c: cgbc: Register known I2C devices on the bus Thomas Richard (congatec GmbH)

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