From: Chen-Yu Tsai <wens@csie.org>
To: Lee Jones <lee.jones@linaro.org>,
Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@wens.tw>, Chen-Yu Tsai <wens@csie.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com,
Hans de Goede <hdegoede@redhat.com>,
Mark Brown <broonie@kernel.org>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v6 6/9] mfd: axp20x: Add support for RSB based AXP223 PMIC
Date: Thu, 17 Dec 2015 00:32:15 +0800 [thread overview]
Message-ID: <1450283538-25067-7-git-send-email-wens@csie.org> (raw)
In-Reply-To: <1450283538-25067-1-git-send-email-wens@csie.org>
The AXP223 is a new PMIC commonly paired with Allwinner A23/A33 SoCs.
It is functionally identical to AXP221; only the regulator default
voltage/status and the external host interface are different.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
drivers/mfd/Kconfig | 11 +++++++
drivers/mfd/Makefile | 1 +
drivers/mfd/axp20x-rsb.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++
drivers/mfd/axp20x.c | 2 ++
include/linux/mfd/axp20x.h | 1 +
5 files changed, 93 insertions(+)
create mode 100644 drivers/mfd/axp20x-rsb.c
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 804cd3dcce32..13c565103e96 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -107,6 +107,17 @@ config MFD_AXP20X_I2C
components like regulators or the PEK (Power Enable Key) under the
corresponding menus.
+config MFD_AXP20X_RSB
+ tristate "X-Powers AXP series PMICs with RSB"
+ select MFD_AXP20X
+ depends on SUNXI_RSB
+ help
+ If you say Y here you get support for the X-Powers AXP series power
+ management ICs (PMICs) controlled with RSB.
+ This driver include only the core APIs. You have to select individual
+ components like regulators or the PEK (Power Enable Key) under the
+ corresponding menus.
+
config MFD_CROS_EC
tristate "ChromeOS Embedded Controller"
select MFD_CORE
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index a6913007d667..caea6637d5e8 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
obj-$(CONFIG_MFD_AXP20X) += axp20x.o
obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o
+obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o
obj-$(CONFIG_MFD_LP3943) += lp3943.o
obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o
diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c
new file mode 100644
index 000000000000..76ff02b96df0
--- /dev/null
+++ b/drivers/mfd/axp20x-rsb.c
@@ -0,0 +1,78 @@
+/*
+ * axp20x-rsb.c - RSB driver for the X-Powers' Power Management ICs
+ *
+ * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
+ * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
+ * as well as configurable GPIOs.
+ *
+ * This driver supports the RSB variants.
+ *
+ * Author: Chen-Yu Tsai <wens@csie.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/mfd/axp20x.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/sunxi-rsb.h>
+
+static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev)
+{
+ struct axp20x_dev *axp20x;
+ int ret;
+
+ axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL);
+ if (!axp20x)
+ return -ENOMEM;
+
+ axp20x->dev = &rdev->dev;
+ axp20x->irq = rdev->irq;
+ sunxi_rsb_device_set_drvdata(rdev, axp20x);
+
+ ret = axp20x_match_device(axp20x);
+ if (ret)
+ return ret;
+
+ axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg);
+ if (IS_ERR(axp20x->regmap)) {
+ ret = PTR_ERR(axp20x->regmap);
+ dev_err(&rdev->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ return axp20x_device_probe(axp20x);
+}
+
+static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
+{
+ struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);
+
+ return axp20x_device_remove(axp20x);
+}
+
+static const struct of_device_id axp20x_rsb_of_match[] = {
+ { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
+ { },
+};
+MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);
+
+static struct sunxi_rsb_driver axp20x_rsb_driver = {
+ .driver = {
+ .name = "axp20x-rsb",
+ .of_match_table = of_match_ptr(axp20x_rsb_of_match),
+ },
+ .probe = axp20x_rsb_probe,
+ .remove = axp20x_rsb_remove,
+};
+module_sunxi_rsb_driver(axp20x_rsb_driver);
+
+MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X");
+MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index 54a00168da26..968d77fb95d8 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -33,6 +33,7 @@ static const char * const axp20x_model_names[] = {
"AXP202",
"AXP209",
"AXP221",
+ "AXP223",
"AXP288",
};
@@ -616,6 +617,7 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
break;
case AXP221_ID:
+ case AXP223_ID:
axp20x->nr_cells = ARRAY_SIZE(axp22x_cells);
axp20x->cells = axp22x_cells;
axp20x->regmap_cfg = &axp22x_regmap_config;
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 00697c6ad8b0..d82e7d51372b 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -18,6 +18,7 @@ enum {
AXP202_ID,
AXP209_ID,
AXP221_ID,
+ AXP223_ID,
AXP288_ID,
NR_AXP20X_VARIANTS,
};
--
2.6.4
next prev parent reply other threads:[~2015-12-16 16:32 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 16:32 [PATCH v6 0/9] mfd: axp20x: Add support for RSB based AXP223 Chen-Yu Tsai
2015-12-16 16:32 ` [PATCH v6 1/9] mfd: axp20x: Add AXP223 to list of supported PMICs in DT bindings Chen-Yu Tsai
2015-12-16 16:32 ` [PATCH v6 2/9] mfd: axp20x: Remove second struct device * parameter for axp20x_match_device() Chen-Yu Tsai
2016-01-11 9:25 ` Lee Jones
2015-12-16 16:32 ` [PATCH v6 3/9] mfd: axp20x: use dev->driver->of_match_table in axp20x_match_device() Chen-Yu Tsai
2016-01-11 9:25 ` Lee Jones
2015-12-16 16:32 ` [PATCH v6 4/9] mfd: axp20x: Split the driver into core and i2c bits Chen-Yu Tsai
2016-01-11 9:25 ` Lee Jones
2016-01-12 2:06 ` Chen-Yu Tsai
2016-01-12 7:39 ` Lee Jones
2015-12-16 16:32 ` [PATCH v6 5/9] mfd: axp20x: Whitespace, open parenthesis alignment code style fixes Chen-Yu Tsai
2016-01-11 9:24 ` Lee Jones
2015-12-16 16:32 ` Chen-Yu Tsai [this message]
2016-01-11 9:24 ` [PATCH v6 6/9] mfd: axp20x: Add support for RSB based AXP223 PMIC Lee Jones
2016-01-11 11:58 ` Chen-Yu Tsai
2016-01-11 12:09 ` Lee Jones
2016-01-11 12:49 ` Chen-Yu Tsai
2016-01-11 13:35 ` Lee Jones
2015-12-16 16:32 ` [PATCH v6 7/9] regulator: axp20x: Support new " Chen-Yu Tsai
2015-12-16 16:32 ` [PATCH v6 8/9] ARM: dts: sun8i: sinlinx-sina33: Add AXP223 PMIC device and regulator nodes Chen-Yu Tsai
2015-12-16 16:32 ` [PATCH v6 9/9] ARM: dts: sun8i: q8-common: " Chen-Yu Tsai
2016-01-04 8:40 ` [PATCH v6 0/9] mfd: axp20x: Add support for RSB based AXP223 Chen-Yu Tsai
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