I2C: ISP1301_OMAP: New-style i2c driver updates, part 2

Based on David Brownell's patch for tps65010, this patch
finish conversting isp1301_omap.c to new-style i2c driver.
Signed-off-by: Felipe Balbi <felipe.lima@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-h2.c

@@ -436,11 +436,21 @@ static void __init h2_init_smc91x(void)
 	}
 }
 
+static struct i2c_board_info __initdata h2_i2c_board_info[] = {
+	{
+		I2C_BOARD_INFO("isp1301_omap", 0x2d),
+		.type		= "isp1301_omap",
+		.irq		= OMAP_GPIOIRQ(2),
+	},
+};
+
 static void __init h2_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
+	i2c_register_board_info(1, h2_i2c_board_info,
+				ARRAY_SIZE(h2_i2c_board_info));
 	h2_init_smc91x();
 }
 

arch/arm/mach-omap1/board-h3.c

@@ -668,6 +668,11 @@ static struct i2c_board_info __initdata h3_i2c_board_info[] = {
 		.platform_data = &h3_ov9640_platform_data,
 	},
 #endif
+	{
+		I2C_BOARD_INFO("isp1301_omap", 0x2d),
+		.type		= "isp1301_omap",
+		.irq		= OMAP_GPIO_IRQ(14),
+	},
 };
 
 extern void __init h3_mmc_init(void);

arch/arm/mach-omap2/board-h4.c

@@ -640,6 +640,11 @@ static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 		I2C_BOARD_INFO("menelaus", 0x72),
 		.irq = INT_24XX_SYS_NIRQ,
 	},
+	{
+		I2C_BOARD_INFO("isp1301_omap", 0x2d),
+		.type		= "isp1301_omap",
+		.irq		= OMAP_GPIOIRQ(125),
+	},
 #if defined(CONFIG_VIDEO_OV9640) || defined(CONFIG_VIDEO_OV9640_MODULE)
 	{
 		I2C_BOARD_INFO("ov9640", 0x30),

drivers/i2c/chips/isp1301_omap.c

@@ -33,20 +33,13 @@
 #include <linux/usb/otg.h>
 #include <linux/i2c.h>
 #include <linux/workqueue.h>
-
-#include <asm/irq.h>
-#include <asm/mach-types.h>
-
-#include <asm/arch/gpio.h>
 #include <asm/arch/usb.h>
-#include <asm/arch/mux.h>
 
 
 #ifndef	DEBUG
 #undef	VERBOSE
 #endif
 
-
 #define	DRIVER_VERSION	"24 August 2004"
 #define	DRIVER_NAME	(isp1301_driver.driver.name)
 
@@ -56,12 +49,8 @@ MODULE_LICENSE("GPL");
 struct isp1301 {
 	struct otg_transceiver	otg;
 	struct i2c_client	*client;
-	struct i2c_client	c;
 	void			(*i2c_release)(struct device *dev);
 
-	int			irq;
-	int			irq_type;
-
 	u32			last_otg_ctrl;
 	unsigned		working:1;
 
@@ -156,13 +145,6 @@ static inline void notresponding(struct isp1301 *isp)
 /*-------------------------------------------------------------------------*/
 
 /* only two addresses possible */
-#define	ISP_BASE		0x2c
-static unsigned short normal_i2c[] = {
-	ISP_BASE, ISP_BASE + 1,
-	I2C_CLIENT_END };
-
-I2C_CLIENT_INSMOD;
-
 static struct i2c_driver isp1301_driver;
 
 /* smbus apis are used for portability */
@@ -1216,9 +1198,11 @@ static void isp1301_timer(unsigned long _isp)
 
 static void isp1301_release(struct device *dev)
 {
+	struct i2c_client	*client;
 	struct isp1301		*isp;
 
-	isp = container_of(dev, struct isp1301, c.dev);
+	client = container_of(dev, struct i2c_client, dev);
+	isp = i2c_get_clientdata(client);
 
 	/* ugly -- i2c hijacks our memory hook to wait_for_completion() */
 	if (isp->i2c_release)
@@ -1228,36 +1212,27 @@ static void isp1301_release(struct device *dev)
 
 static struct isp1301 *the_transceiver;
 
-static int isp1301_detach_client(struct i2c_client *i2c)
+static int __exit isp1301_remove(struct i2c_client *client)
 {
-	struct isp1301	*isp;
-
-	isp = container_of(i2c, struct isp1301, c);
+	struct isp1301	*isp = i2c_get_clientdata(client);
 
 	isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
 	isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
-	free_irq(isp->irq, isp);
+
+	if (client->irq > 0)
+		free_irq(client->irq, isp);
 #ifdef	CONFIG_USB_OTG
 	otg_unbind(isp);
 #endif
-	if (machine_is_omap_h2())
-		omap_free_gpio(2);
-
-	if (machine_is_omap_h3())
-		omap_free_gpio(14);
-
-	if (machine_is_omap_h4())
-		omap_free_gpio(125);
-
 	isp->timer.data = 0;
 	set_bit(WORK_STOP, &isp->todo);
 	del_timer_sync(&isp->timer);
 	flush_scheduled_work();
 
-	put_device(&i2c->dev);
+	put_device(&client->dev);
 	the_transceiver = 0;
 
-	return i2c_detach_client(i2c);
+	return 0;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -1327,10 +1302,6 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
 
 	power_up(isp);
 
-// XXX h4 too?
-	if (machine_is_omap_h2() || machine_is_omap_h3())
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
-
 	dev_info(&isp->client->dev, "A-Host sessions ok\n");
 	isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
 		INTR_ID_GND);
@@ -1513,11 +1484,10 @@ isp1301_start_hnp(struct otg_transceiver *dev)
 /*-------------------------------------------------------------------------*/
 
 /* no error returns, they'd just make bus scanning stop */
-static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
+static int __init isp1301_probe(struct i2c_client *client)
 {
 	int			status;
 	struct isp1301		*isp;
-	struct i2c_client	*i2c;
 
 	if (the_transceiver)
 		return 0;
@@ -1530,46 +1500,35 @@ static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
 	init_timer(&isp->timer);
 	isp->timer.function = isp1301_timer;
 	isp->timer.data = (unsigned long) isp;
-
-	isp->irq = -1;
-	isp->irq_type = 0;
-	isp->c.addr = address;
-	i2c_set_clientdata(&isp->c, isp);
-	isp->c.adapter = bus;
-	isp->c.driver = &isp1301_driver;
-	strlcpy(isp->c.name, DRIVER_NAME, I2C_NAME_SIZE);
-	isp->client = i2c = &isp->c;
+	isp->client = client;
 
 	/* if this is a true probe, verify the chip ... */
-	if (kind < 0) {
 	status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
 	if (status != I2C_VENDOR_ID_PHILIPS) {
-			dev_dbg(&bus->dev, "addr %d not philips id: %d\n",
-				address, status);
+		dev_dbg(&client->dev, "not philips id: %d\n",
+				status);
 		goto fail1;
 	}
 	status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
 	if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
-			dev_dbg(&bus->dev, "%d not isp1301, %d\n",
-				address, status);
+		dev_dbg(&client->dev, "not isp1301, %d\n",
+				status);
 		goto fail1;
 	}
-	}
 
-	status = i2c_attach_client(i2c);
 	if (status < 0) {
-		dev_dbg(&bus->dev, "can't attach %s to device %d, err %d\n",
-				DRIVER_NAME, address, status);
+		dev_dbg(&client->dev, "can't attach %s to device, err %d\n",
+				DRIVER_NAME, status);
 fail1:
 		kfree(isp);
 		return 0;
 	}
-	isp->i2c_release = i2c->dev.release;
-	i2c->dev.release = isp1301_release;
+	isp->i2c_release = client->dev.release;
+	client->dev.release = isp1301_release;
 
 	/* initial development used chiprev 2.00 */
-	status = i2c_smbus_read_word_data(i2c, ISP1301_BCD_DEVICE);
-	dev_info(&i2c->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
+	status = i2c_smbus_read_word_data(client, ISP1301_BCD_DEVICE);
+	dev_info(&client->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
 		status >> 8, status & 0xff);
 
 	/* make like power-on reset */
@@ -1590,60 +1549,25 @@ fail1:
 #ifdef	CONFIG_USB_OTG
 	status = otg_bind(isp);
 	if (status < 0) {
-		dev_dbg(&i2c->dev, "can't bind OTG\n");
+		dev_dbg(&client->dev, "can't bind OTG\n");
 		goto fail2;
 	}
 #endif
 
-// XXX h4 too?
-	if (machine_is_omap_h2() || machine_is_omap_h3()) {
-		/* full speed signaling by default */
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
-			MC1_SPEED_REG);
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2,
-			MC2_SPD_SUSP_CTRL);
-	}
-
-	if (machine_is_omap_h2()) {
-		/* IRQ wired at M14 */
-		omap_cfg_reg(M14_1510_GPIO2);
-		isp->irq = OMAP_GPIO_IRQ(2);
-		omap_request_gpio(2);
-		omap_set_gpio_direction(2, 1);
-		isp->irq_type = IRQF_TRIGGER_FALLING;
-	}
-
-	if (machine_is_omap_h3()) {
-		/* IRQ wired at N21 */
-		omap_cfg_reg(N21_1710_GPIO14);
-		isp->irq = OMAP_GPIO_IRQ(14);
-		omap_request_gpio(14);
-		omap_set_gpio_direction(14, 1);
-		isp->irq_type = IRQF_TRIGGER_FALLING;
-	}
-
-	if (machine_is_omap_h4()) {
-		/* IRQ wired at P14 */
-		omap_cfg_reg(P14_24XX_GPIO125);
-		isp->irq = OMAP_GPIO_IRQ(125);
-		omap_request_gpio(125);
-		omap_set_gpio_direction(125, 1);
-		isp->irq_type = IRQF_TRIGGER_LOW;
-	}
-
-	status = request_irq(isp->irq, isp1301_irq,
-			isp->irq_type, DRIVER_NAME, isp);
+	status = request_irq(client->irq, isp1301_irq,
+			IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING,
+			DRIVER_NAME, isp);
 	if (status < 0) {
-		dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
-				isp->irq, status);
+		dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
+				client->irq, status);
 #ifdef	CONFIG_USB_OTG
 fail2:
 #endif
-		i2c_detach_client(i2c);
+		i2c_detach_client(client);
 		goto fail1;
 	}
 
-	isp->otg.dev = &isp->client->dev;
+	isp->otg.dev = &client->dev;
 	isp->otg.label = DRIVER_NAME;
 
 	isp->otg.set_host = isp1301_set_host,
@@ -1660,43 +1584,42 @@ fail2:
 	update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
 	update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
 #endif
-
 	dump_regs(isp, __FUNCTION__);
 
 #ifdef	VERBOSE
 	mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
-	dev_dbg(&i2c->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
+	dev_dbg(&client->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
 #endif
 
 	status = otg_set_transceiver(&isp->otg);
 	if (status < 0)
-		dev_err(&i2c->dev, "can't register transceiver, %d\n",
+		dev_err(&client->dev, "can't register transceiver, %d\n",
 			status);
 
 	return 0;
 }
 
-static int isp1301_scan_bus(struct i2c_adapter *bus)
-{
-	if (!i2c_check_functionality(bus, I2C_FUNC_SMBUS_BYTE_DATA
-			| I2C_FUNC_SMBUS_READ_WORD_DATA))
-		return -EINVAL;
-	return i2c_probe(bus, &addr_data, isp1301_probe);
-}
-
 static struct i2c_driver isp1301_driver = {
 	.driver = {
 		.name	= "isp1301_omap",
 	},
-	.attach_adapter	= isp1301_scan_bus,
-	.detach_client	= isp1301_detach_client,
+	.probe	= isp1301_probe,
+	.remove	= __exit_p(isp1301_remove),
 };
 
 /*-------------------------------------------------------------------------*/
 
 static int __init isp_init(void)
 {
-	return i2c_add_driver(&isp1301_driver);
+	int	status = -ENODEV;
+
+	printk(KERN_INFO "%s: version %s\n", DRIVER_NAME, DRIVER_VERSION);
+
+	status = i2c_add_driver(&isp1301_driver);
+	if (status)
+		printk(KERN_ERR "%s failed to probe\n", DRIVER_NAME);
+
+	return status;
 }
 module_init(isp_init);