From: Quan Nguyen <quan@os.amperecomputing.com>
To: Joel Stanley <joel@jms.id.au>, Andrew Jeffery <andrew@aj.id.au>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Rob Herring <robh+dt@kernel.org>,
Lee Jones <lee.jones@linaro.org>,
Jonathan Corbet <corbet@lwn.net>,
linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
linux-aspeed@lists.ozlabs.org, openbmc@lists.ozlabs.org
Cc: Open Source Submission <patches@amperecomputing.com>,
Phong Vo <phong@os.amperecomputing.com>,
"Thang Q . Nguyen" <thang@os.amperecomputing.com>
Subject: [PATCH v2 2/4] mfd: simple-mfd-i2c: Adds Ampere's Altra SMpro support
Date: Mon, 29 Mar 2021 08:52:36 +0700 [thread overview]
Message-ID: <20210329015238.19474-3-quan@os.amperecomputing.com> (raw)
In-Reply-To: <20210329015238.19474-1-quan@os.amperecomputing.com>
Adds an MFD driver for SMpro found on the Mt.Jade hardware reference
platform with Ampere's Altra processor family.
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
---
drivers/mfd/Kconfig | 10 ++++++++++
drivers/mfd/simple-mfd-i2c.c | 6 ++++++
2 files changed, 16 insertions(+)
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d07e8cf93286..f7a6460f7aa0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -77,6 +77,16 @@ config MFD_AS3711
help
Support for the AS3711 PMIC from AMS
+config MFD_SMPRO
+ tristate "Ampere Computing MFD SMpro core driver"
+ select MFD_SIMPLE_MFD_I2C
+ help
+ Say yes here to enable SMpro driver support for Ampere's Altra
+ processor family.
+
+ Ampere's Altra SMpro exposes an I2C regmap interface that can
+ be accessed by child devices.
+
config MFD_AS3722
tristate "ams AS3722 Power Management IC"
select MFD_CORE
diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c
index 87f684cff9a1..9a44655f5592 100644
--- a/drivers/mfd/simple-mfd-i2c.c
+++ b/drivers/mfd/simple-mfd-i2c.c
@@ -21,6 +21,11 @@ static const struct regmap_config simple_regmap_config = {
.val_bits = 8,
};
+static const struct regmap_config simple_word_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 16,
+};
+
static int simple_mfd_i2c_probe(struct i2c_client *i2c)
{
const struct regmap_config *config;
@@ -39,6 +44,7 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c)
static const struct of_device_id simple_mfd_i2c_of_match[] = {
{ .compatible = "kontron,sl28cpld" },
+ { .compatible = "ampere,smpro", .data = &simple_word_regmap_config },
{}
};
MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match);
--
2.28.0
next prev parent reply other threads:[~2021-03-29 1:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-29 1:52 [PATCH v2 0/4] Add Ampere's Altra SMPro hwmon driver Quan Nguyen
2021-03-29 1:52 ` [PATCH v2 1/4] dt-bindings: mfd: Add bindings for Ampere Altra SMPro drivers Quan Nguyen
2021-03-30 21:14 ` Rob Herring
2021-04-07 9:42 ` Quan Nguyen
2021-03-29 1:52 ` Quan Nguyen [this message]
2021-04-14 10:03 ` [PATCH v2 2/4] mfd: simple-mfd-i2c: Adds Ampere's Altra SMpro support Lee Jones
2021-03-29 1:52 ` [PATCH v2 3/4] hwmon: smpro: Add Ampere's Altra smpro-hwmon driver Quan Nguyen
2021-03-30 1:43 ` Guenter Roeck
2021-04-07 7:41 ` Quan Nguyen
2021-04-07 12:11 ` Guenter Roeck
2021-04-08 12:02 ` Quan Nguyen
2021-03-29 1:52 ` [PATCH v2 4/4] docs: hwmon: (smpro-hwmon) Add documentation Quan Nguyen
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