Merge topic branch 'wlan' into integration-linux-ux500

5 files changed, 384 insertions, 0 deletions

diff --git a/arch/arm/mach-ux500/board-mop500-wlan.c b/arch/arm/mach-ux500/board-mop500-wlan.c
new file mode 100644
index 00000000000..821baae5273
--- /dev/null
+++ b/arch/arm/mach-ux500/board-mop500-wlan.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <asm/mach-types.h>
+#include <mach/irqs.h>
+#include <plat/pincfg.h>
+#include <linux/clk.h>
+#include <mach/cw1200_plat.h>
+
+#include "pins.h"
+
+static void cw1200_release(struct device *dev);
+static int cw1200_power_ctrl(const struct cw1200_platform_data *pdata,
+			     bool enable);
+static int cw1200_clk_ctrl(const struct cw1200_platform_data *pdata,
+		bool enable);
+
+static struct resource cw1200_href_resources[] = {
+	{
+		.start = 215,
+		.end = 215,
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_reset",
+	},
+	{
+		.start = NOMADIK_GPIO_TO_IRQ(216),
+		.end = NOMADIK_GPIO_TO_IRQ(216),
+		.flags = IORESOURCE_IRQ,
+		.name = "cw1200_irq",
+	},
+};
+
+static struct resource cw1200_href60_resources[] = {
+	{
+		.start = 85,
+		.end = 85,
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_reset",
+	},
+	{
+		.start = NOMADIK_GPIO_TO_IRQ(4),
+		.end = NOMADIK_GPIO_TO_IRQ(4),
+		.flags = IORESOURCE_IRQ,
+		.name = "cw1200_irq",
+	},
+};
+
+static struct resource cw1200_u9500_resources[] = {
+	{
+		.start = 85,
+		.end = 85,
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_reset",
+	},
+	{
+		.start = NOMADIK_GPIO_TO_IRQ(144),
+		.end = NOMADIK_GPIO_TO_IRQ(144),
+		.flags = IORESOURCE_IRQ,
+		.name = "cw1200_irq",
+	},
+};
+
+static struct cw1200_platform_data cw1200_platform_data = {
+	.clk_ctrl = cw1200_clk_ctrl,
+};
+
+static struct platform_device cw1200_device = {
+	.name = "cw1200_wlan",
+	.dev = {
+		.platform_data = &cw1200_platform_data,
+		.release = cw1200_release,
+		.init_name = "cw1200_wlan",
+	},
+};
+
+const struct cw1200_platform_data *cw1200_get_platform_data(void)
+{
+	return &cw1200_platform_data;
+}
+EXPORT_SYMBOL_GPL(cw1200_get_platform_data);
+
+static int cw1200_pins_enable(bool enable)
+{
+	struct ux500_pins *pins = NULL;
+	int ret = 0;
+
+	pins = ux500_pins_get("sdi1");
+
+	if (!pins) {
+		printk(KERN_ERR "cw1200: Pins are not found. "
+				"Check platform data.\n");
+		return -ENOENT;
+	}
+
+	if (enable)
+		ret = ux500_pins_enable(pins);
+	else
+		ret = ux500_pins_disable(pins);
+
+	if (ret)
+		printk(KERN_ERR "cw1200: Pins can not be %s: %d.\n",
+				enable ? "enabled" : "disabled",
+				ret);
+
+	ux500_pins_put(pins);
+
+	return ret;
+}
+
+static int cw1200_power_ctrl(const struct cw1200_platform_data *pdata,
+		bool enable)
+{
+	static const char *vdd_name = "vdd";
+	struct regulator *vdd;
+	int ret = 0;
+
+	vdd = regulator_get(&cw1200_device.dev, vdd_name);
+	if (IS_ERR(vdd)) {
+		ret = PTR_ERR(vdd);
+		dev_warn(&cw1200_device.dev,
+				"%s: Failed to get regulator '%s': %d\n",
+				__func__, vdd_name, ret);
+	} else {
+		if (enable)
+			ret = regulator_enable(vdd);
+		else
+			ret = regulator_disable(vdd);
+
+		if (ret) {
+			dev_warn(&cw1200_device.dev,
+					"%s: Failed to %s regulator '%s': %d\n",
+					__func__, enable ? "enable" : "disable",
+					vdd_name, ret);
+		}
+		regulator_put(vdd);
+	}
+	return  ret;
+}
+
+static int cw1200_clk_ctrl(const struct cw1200_platform_data *pdata,
+		bool enable)
+{
+	static const char *clock_name = "sys_clk_out";
+	struct clk *clk_dev;
+	int ret = 0;
+
+	clk_dev = clk_get(&cw1200_device.dev, clock_name);
+
+	if (IS_ERR(clk_dev)) {
+		ret = PTR_ERR(clk_dev);
+		dev_warn(&cw1200_device.dev,
+				"%s: Failed to get clk '%s': %d\n",
+				__func__, clock_name, ret);
+
+	} else {
+
+		if (enable)
+			ret = clk_enable(clk_dev);
+		else
+			clk_disable(clk_dev);
+
+		if (ret) {
+			dev_warn(&cw1200_device.dev,
+					"%s: Failed to %s clk enable: %d\n",
+					__func__, clock_name, ret);
+		}
+	}
+
+	return ret;
+}
+
+int __init mop500_wlan_init(struct device *parent)
+{
+	int ret;
+
+	if (pins_for_u9500()) {
+		cw1200_device.num_resources = ARRAY_SIZE(cw1200_u9500_resources);
+		cw1200_device.resource = cw1200_u9500_resources;
+	} else if (machine_is_u8500() || machine_is_nomadik() || machine_is_snowball()) {
+		cw1200_device.num_resources = ARRAY_SIZE(cw1200_href_resources);
+		cw1200_device.resource = cw1200_href_resources;
+	} else if (machine_is_hrefv60() || machine_is_u8520()
+			 || machine_is_u9540()) {
+		cw1200_device.num_resources =
+				ARRAY_SIZE(cw1200_href60_resources);
+		cw1200_device.resource = cw1200_href60_resources;
+	} else {
+		dev_err(&cw1200_device.dev,
+				"Unsupported mach type %d "
+				"(check mach-types.h)\n",
+				__machine_arch_type);
+		return -ENOTSUPP;
+	}
+
+	if (machine_is_snowball())
+		cw1200_platform_data.mmc_id = "mmc2";
+	else
+		cw1200_platform_data.mmc_id = "mmc3";
+
+	cw1200_platform_data.reset = &cw1200_device.resource[0];
+	cw1200_platform_data.irq = &cw1200_device.resource[1];
+
+	cw1200_device.dev.release = cw1200_release;
+
+	if (machine_is_snowball())
+		cw1200_platform_data.power_ctrl = cw1200_power_ctrl;
+
+	ret = cw1200_pins_enable(true);
+	if (WARN_ON(ret))
+		return ret;
+
+	cw1200_device.dev.parent = parent;
+	ret = platform_device_register(&cw1200_device);
+	if (ret)
+		cw1200_pins_enable(false);
+
+	return ret;
+}
+
+static void cw1200_release(struct device *dev)
+{
+	cw1200_pins_enable(false);
+}
diff --git a/arch/arm/mach-ux500/board-mop500-wlan.h b/arch/arm/mach-ux500/board-mop500-wlan.h
new file mode 100644
index 00000000000..19a12d57ded
--- /dev/null
+++ b/arch/arm/mach-ux500/board-mop500-wlan.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * License terms:  GNU General Public License (GPL), version 2
+ *
+ * U8500 board specific cw1200 (WLAN device) initialization.
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ *
+ */
+
+#ifndef __BOARD_MOP500_WLAN_H
+#define __BOARD_MOP500_WLAN_H
+
+int mop500_wlan_init(struct device *parent);
+
+#endif
diff --git a/arch/arm/mach-ux500/board-u5500-wlan.c b/arch/arm/mach-ux500/board-u5500-wlan.c
new file mode 100644
index 00000000000..fd64089108a
--- /dev/null
+++ b/arch/arm/mach-ux500/board-u5500-wlan.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+  *Author: Bartosz Markowski <bartosz.markowski@tieto.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <asm/mach-types.h>
+#include <mach/irqs.h>
+#include "pins.h"
+#include <mach/cw1200_plat.h>
+
+
+static void cw1200_release(struct device *dev);
+static int cw1200_prcmu_ctrl(const struct cw1200_platform_data *pdata,
+		bool enable);
+
+static struct resource cw1200_u5500_resources[] = {
+	{
+		.start = NOMADIK_GPIO_TO_IRQ(129),
+		.end = NOMADIK_GPIO_TO_IRQ(129),
+		.flags = IORESOURCE_IRQ,
+		.name = "cw1200_irq",
+	},
+};
+
+static struct cw1200_platform_data cw1200_u5500_platform_data = {
+	.prcmu_ctrl = cw1200_prcmu_ctrl,
+};
+
+static struct platform_device cw1200_device = {
+	.name = "cw1200_wlan",
+	.dev = {
+		.platform_data = &cw1200_u5500_platform_data,
+		.release = cw1200_release,
+		.init_name = "cw1200_wlan",
+	},
+};
+
+const struct cw1200_platform_data *cw1200_u5500_get_platform_data(void)
+{
+	return &cw1200_u5500_platform_data;
+}
+EXPORT_SYMBOL_GPL(cw1200_u5500_get_platform_data);
+
+static int cw1200_prcmu_ctrl(const struct cw1200_platform_data *pdata,
+		bool enable)
+{
+	int ret;
+
+	if (enable)
+		ret = prcmu_resetout(2, 1);
+	else
+		ret = prcmu_resetout(2, 0);
+
+	return ret;
+}
+
+int __init u5500_wlan_init(void)
+{
+	if (machine_is_u5500()) {
+		cw1200_device.num_resources = ARRAY_SIZE(cw1200_u5500_resources);
+		cw1200_device.resource = cw1200_u5500_resources;
+	} else {
+		dev_err(&cw1200_device.dev,
+				"Unsupported mach type %d "
+				"(check mach-types.h)\n",
+				__machine_arch_type);
+		return -ENOTSUPP;
+	}
+
+	cw1200_u5500_platform_data.mmc_id = "mmc2";
+	cw1200_u5500_platform_data.irq = &cw1200_device.resource[0];
+
+	cw1200_device.dev.release = cw1200_release;
+
+	return platform_device_register(&cw1200_device);
+}
+
+static void cw1200_release(struct device *dev)
+{
+
+}
diff --git a/arch/arm/mach-ux500/board-u5500-wlan.h b/arch/arm/mach-ux500/board-u5500-wlan.h
new file mode 100644
index 00000000000..89fd41166fd
--- /dev/null
+++ b/arch/arm/mach-ux500/board-u5500-wlan.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * License terms:  GNU General Public License (GPL), version 2
+ *
+ * U5500 board specific cw1200 (WLAN device) initialization.
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ * Author: Bartosz Markowski <bartosz.markowski@tieto.com> for ST-Ericsson
+ *
+ */
+
+#ifndef __BOARD_U5500_WLAN_H
+#define __BOARD_U5500_WLAN_H
+
+int u5500_wlan_init(void);
+
+#endif
diff --git a/arch/arm/mach-ux500/include/mach/cw1200_plat.h b/arch/arm/mach-ux500/include/mach/cw1200_plat.h
new file mode 100644
index 00000000000..3a73183c9f8
--- /dev/null
+++ b/arch/arm/mach-ux500/include/mach/cw1200_plat.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef CW1200_PLAT_H_INCLUDED
+#define CW1200_PLAT_H_INCLUDED
+
+#include <linux/ioport.h>
+
+struct cw1200_platform_data {
+	const char *mmc_id;
+	const struct resource *irq;
+	const struct resource *reset;
+	int (*power_ctrl)(const struct cw1200_platform_data *pdata,
+			  bool enable);
+	int (*clk_ctrl)(const struct cw1200_platform_data *pdata,
+			  bool enable);
+	int (*prcmu_ctrl)(const struct cw1200_platform_data *pdata,
+			  bool enable);
+};
+
+/* Declaration only. Should be implemented in arch/xxx/mach-yyy */
+const struct cw1200_platform_data *cw1200_get_platform_data(void);
+
+#endif /* CW1200_PLAT_H_INCLUDED */