[PATCH v4 3/7] pinctrl: berlin: add the BG2 pinctrl driver

From: Sebastian Hesselbarth
Date: Mon May 19 2014 - 13:38:57 EST

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From: Antoine Tenart <antoine.tenart@xxxxxxxxxxxxxxxxxx>

Add the pin-controller driver for the Berlin BG2 SoC, with definition
of its groups and functions. Pin control registers are part of chip/
system control registers, which will be represented by a single node.
Until a proper driver for the chip/system control is available,
register the corresponding regmap in pinctrl driver probe.

Signed-off-by: Antoine Tenart <antoine.tenart@xxxxxxxxxxxxxxxxxx>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
---
Changelog:
v3->v4:
- change compatible to the settled name of the chip/system control
nodes and register a regmap for the core driver instead.

Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Antoine Tenart <antoine.tenart@xxxxxxxxxxxxxxxxxx>
Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Cc: zmxu@xxxxxxxxxxx
Cc: jszhang@xxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
drivers/pinctrl/berlin/Kconfig | 4 +
drivers/pinctrl/berlin/Makefile | 1 +
drivers/pinctrl/berlin/berlin-bg2.c | 274 ++++++++++++++++++++++++++++++++++++
3 files changed, 279 insertions(+)
create mode 100644 drivers/pinctrl/berlin/berlin-bg2.c

diff --git a/drivers/pinctrl/berlin/Kconfig b/drivers/pinctrl/berlin/Kconfig
index 3579244931e9..381f46347c51 100644
--- a/drivers/pinctrl/berlin/Kconfig
+++ b/drivers/pinctrl/berlin/Kconfig
@@ -5,6 +5,10 @@ config PINCTRL_BERLIN
select PINMUX
select REGMAP_MMIO

+config PINCTRL_BERLIN_BG2
+ bool
+ select PINCTRL_BERLIN
+
config PINCTRL_BERLIN_BG2Q
bool
select PINCTRL_BERLIN
diff --git a/drivers/pinctrl/berlin/Makefile b/drivers/pinctrl/berlin/Makefile
index 1866b1f2d1cf..e37e4e7a8838 100644
--- a/drivers/pinctrl/berlin/Makefile
+++ b/drivers/pinctrl/berlin/Makefile
@@ -1,2 +1,3 @@
obj-$(CONFIG_PINCTRL_BERLIN) += berlin.o
+obj-$(CONFIG_PINCTRL_BERLIN_BG2) += berlin-bg2.o
obj-$(CONFIG_PINCTRL_BERLIN_BG2Q) += berlin-bg2q.o
diff --git a/drivers/pinctrl/berlin/berlin-bg2.c b/drivers/pinctrl/berlin/berlin-bg2.c
new file mode 100644
index 000000000000..38626577d326
--- /dev/null
+++ b/drivers/pinctrl/berlin/berlin-bg2.c
@@ -0,0 +1,274 @@
+/*
+ * Marvell Berlin BG2 pinctrl driver.
+ *
+ * Copyright (C) 2014 Marvell Technology Group Ltd.
+ *
+ * Antoine TÃnart <antoine.tenart@xxxxxxxxxxxxxxxxxx>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include "berlin.h"
+
+static const struct berlin_desc_group berlin2_soc_pinctrl_groups[] = {
+ /* G */
+ BERLIN_PINCTRL_GROUP("G0", 0x00, 0x1, 0x00,
+ BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G1", 0x00, 0x2, 0x01,
+ BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "usb1")),
+ BERLIN_PINCTRL_GROUP("G2", 0x00, 0x2, 0x02,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "pwm"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "i2s0")),
+ BERLIN_PINCTRL_GROUP("G3", 0x00, 0x2, 0x04,
+ BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "i2s1")),
+ BERLIN_PINCTRL_GROUP("G4", 0x00, 0x2, 0x06,
+ BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "pwm")),
+ BERLIN_PINCTRL_GROUP("G5", 0x00, 0x3, 0x08,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sts1"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "et"),
+ /*
+ * Mode 0x3 mux i2s2 mclk *and* i2s3 mclk:
+ * add two functions so it can be used with other groups
+ * within the same subnode in the device tree
+ */
+ BERLIN_PINCTRL_FUNCTION(0x3, "i2s2"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "i2s3")),
+ BERLIN_PINCTRL_GROUP("G6", 0x00, 0x2, 0x0b,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sts0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "et")),
+ BERLIN_PINCTRL_GROUP("G7", 0x00, 0x3, 0x0d,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sts0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "et"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "vdac")),
+ BERLIN_PINCTRL_GROUP("G8", 0x00, 0x3, 0x10,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "et"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "sata_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G9", 0x00, 0x3, 0x13,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "et"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "sata_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G10", 0x00, 0x2, 0x16,
+ BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "twsi0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "ptp")),
+ BERLIN_PINCTRL_GROUP("G11", 0x00, 0x2, 0x18,
+ BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "twsi1"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "eddc")),
+ BERLIN_PINCTRL_GROUP("G12", 0x00, 0x3, 0x1a,
+ BERLIN_PINCTRL_FUNCTION(0x0, "sts2"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sata"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "sd1"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "sts1"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G13", 0x04, 0x3, 0x00,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sata"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "sd1"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "sts1"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G14", 0x04, 0x1, 0x03,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G15", 0x04, 0x2, 0x04,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "et"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "osco")),
+ BERLIN_PINCTRL_GROUP("G16", 0x04, 0x3, 0x06,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "dvio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "fp")),
+ BERLIN_PINCTRL_GROUP("G17", 0x04, 0x3, 0x09,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "dvio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "fp")),
+ BERLIN_PINCTRL_GROUP("G18", 0x04, 0x1, 0x0c,
+ BERLIN_PINCTRL_FUNCTION(0x0, "pll"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "i2s0")),
+ BERLIN_PINCTRL_GROUP("G19", 0x04, 0x1, 0x0d,
+ BERLIN_PINCTRL_FUNCTION(0x0, "i2s0"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "pwm")),
+ BERLIN_PINCTRL_GROUP("G20", 0x04, 0x1, 0x0e,
+ BERLIN_PINCTRL_FUNCTION(0x0, "spdif"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "arc")),
+ BERLIN_PINCTRL_GROUP("G21", 0x04, 0x3, 0x0f,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "dvio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "fp"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "adac_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "pdm_a"), /* gpio17..19,pdm */
+ BERLIN_PINCTRL_FUNCTION(0x7, "pdm_b")), /* gpio12..14,pdm */
+ BERLIN_PINCTRL_GROUP("G22", 0x04, 0x3, 0x12,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "dv0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "fp"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "twsi0"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "pwm")),
+ BERLIN_PINCTRL_GROUP("G23", 0x04, 0x3, 0x15,
+ BERLIN_PINCTRL_FUNCTION(0x0, "vclki"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "dv0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "fp"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "i2s0"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "pdm")),
+ BERLIN_PINCTRL_GROUP("G24", 0x04, 0x2, 0x18,
+ BERLIN_PINCTRL_FUNCTION(0x0, "i2s2"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "i2s1")),
+ BERLIN_PINCTRL_GROUP("G25", 0x04, 0x2, 0x1a,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "nand"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "i2s2")),
+ BERLIN_PINCTRL_GROUP("G26", 0x04, 0x1, 0x1c,
+ BERLIN_PINCTRL_FUNCTION(0x0, "nand"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "emmc")),
+ BERLIN_PINCTRL_GROUP("G27", 0x04, 0x1, 0x1d,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "nand")),
+ BERLIN_PINCTRL_GROUP("G28", 0x04, 0x2, 0x1e,
+ BERLIN_PINCTRL_FUNCTION(0x0, "dvo"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "sp")),
+};
+
+static const struct berlin_desc_group berlin2_sysmgr_pinctrl_groups[] = {
+ /* GSM */
+ BERLIN_PINCTRL_GROUP("GSM0", 0x40, 0x2, 0x00,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "eth1")),
+ BERLIN_PINCTRL_GROUP("GSM1", 0x40, 0x2, 0x02,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "eth1")),
+ BERLIN_PINCTRL_GROUP("GSM2", 0x40, 0x2, 0x04,
+ BERLIN_PINCTRL_FUNCTION(0x0, "twsi2"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi2")),
+ BERLIN_PINCTRL_GROUP("GSM3", 0x40, 0x2, 0x06,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "uart0"), /* CTS/RTS */
+ BERLIN_PINCTRL_FUNCTION(0x2, "uart2"), /* RX/TX */
+ BERLIN_PINCTRL_FUNCTION(0x3, "twsi2")),
+ BERLIN_PINCTRL_GROUP("GSM4", 0x40, 0x2, 0x08,
+ BERLIN_PINCTRL_FUNCTION(0x0, "uart0"), /* RX/TX */
+ BERLIN_PINCTRL_FUNCTION(0x1, "irda0")),
+ BERLIN_PINCTRL_GROUP("GSM5", 0x40, 0x2, 0x0a,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "uart1"), /* RX/TX */
+ BERLIN_PINCTRL_FUNCTION(0x2, "irda1"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "twsi3")),
+ BERLIN_PINCTRL_GROUP("GSM6", 0x40, 0x2, 0x0c,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi2"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "clki")),
+ BERLIN_PINCTRL_GROUP("GSM7", 0x40, 0x1, 0x0e,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "hdmi")),
+ BERLIN_PINCTRL_GROUP("GSM8", 0x40, 0x1, 0x0f,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "hdmi")),
+ BERLIN_PINCTRL_GROUP("GSM9", 0x40, 0x1, 0x10,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "led")),
+ BERLIN_PINCTRL_GROUP("GSM10", 0x40, 0x1, 0x11,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "led")),
+ BERLIN_PINCTRL_GROUP("GSM11", 0x40, 0x1, 0x12,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "led")),
+};
+
+static const struct berlin_pinctrl_desc berlin2_soc_pinctrl_data = {
+ .groups = berlin2_soc_pinctrl_groups,
+ .ngroups = ARRAY_SIZE(berlin2_soc_pinctrl_groups),
+};
+
+static const struct berlin_pinctrl_desc berlin2_sysmgr_pinctrl_data = {
+ .groups = berlin2_sysmgr_pinctrl_groups,
+ .ngroups = ARRAY_SIZE(berlin2_sysmgr_pinctrl_groups),
+};
+
+static const struct of_device_id berlin2_pinctrl_match[] = {
+ {
+ .compatible = "marvell,berlin2-chip-ctrl",
+ .data = &berlin2_soc_pinctrl_data
+ },
+ {
+ .compatible = "marvell,berlin2-system-ctrl",
+ .data = &berlin2_sysmgr_pinctrl_data
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, berlin2_pinctrl_match);
+
+static int berlin2_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match =
+ of_match_device(berlin2_pinctrl_match, &pdev->dev);
+ struct regmap_config *rmconfig;
+ struct regmap *regmap;
+ struct resource *res;
+ void __iomem *base;
+
+ rmconfig = devm_kzalloc(&pdev->dev, sizeof(*rmconfig), GFP_KERNEL);
+ if (!rmconfig)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!base)
+ return -EADDRNOTAVAIL;
+
+ rmconfig->reg_bits = 32,
+ rmconfig->val_bits = 32,
+ rmconfig->reg_stride = 4,
+ rmconfig->max_register = resource_size(res);
+
+ regmap = devm_regmap_init_mmio(&pdev->dev, base, rmconfig);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return berlin_pinctrl_probe(pdev, match->data);
+}
+
+static struct platform_driver berlin2_pinctrl_driver = {
+ .probe = berlin2_pinctrl_probe,
+ .driver = {
+ .name = "berlin-bg2-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = berlin2_pinctrl_match,
+ },
+};
+module_platform_driver(berlin2_pinctrl_driver);
+
+MODULE_AUTHOR("Antoine TÃnart <antoine.tenart@xxxxxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("Marvell Berlin BG2 pinctrl driver");
+MODULE_LICENSE("GPL");
--
1.9.1

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Next message: Sebastian Ott: "{Filename?} hanging aio process"
Previous message: Sebastian Hesselbarth: "[PATCH v4 2/7] pinctrl: berlin: add the BG2Q pinctrl driver"
In reply to: Sebastian Hesselbarth: "[PATCH v4 2/7] pinctrl: berlin: add the BG2Q pinctrl driver"
Next in thread: Linus Walleij: "Re: [PATCH v4 0/7] ARM: berlin: add pinctrl support"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]