pinctrl: berlin: add the BG2 pinctrl driver

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@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/berlin/Kconfig b/drivers/pinctrl/berlin/Kconfig
index 3579244..381f463 100644 (file)
--- 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 1866b1f..e37e4e7 100644 (file)
--- 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 (file)
index 0000000..0d8fd50
--- /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 Ténart <antoine.tenart@free-electrons.com>
+ *
+ * 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 Ténart <antoine.tenart@free-electrons.com>");
+MODULE_DESCRIPTION("Marvell Berlin BG2 pinctrl driver");
+MODULE_LICENSE("GPL");