add led

hc

2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/arch/arm/mach-omap1/board-osk.c
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@@ -26,6 +26,7 @@
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  * 675 Mass Ave, Cambridge, MA 02139, USA.
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  */
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 #include <linux/gpio.h>
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+#include <linux/gpio/machine.h>
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 #include <linux/kernel.h>
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 #include <linux/init.h>
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 #include <linux/platform_device.h>
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@@ -54,6 +55,9 @@
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 #include <mach/usb.h>
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 #include "common.h"
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+
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+/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
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+#define OMAP_GPIO_LABEL		"gpio-0-15"
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 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
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 #define OMAP_OSK_ETHR_START		0x04800300
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@@ -199,6 +203,8 @@
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 	 */
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 	gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
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 	gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
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+	/* Free the GPIO again as the driver will request it */
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+	gpio_free(OSK_TPS_GPIO_USB_PWR_EN);
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 	/* Set GPIO 2 high so LED D3 is off by default */
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 	tps65010_set_gpio_out_value(GPIO2, HIGH);
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@@ -240,7 +246,9 @@
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 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
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 	{
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+		/* This device will get the name "i2c-tps65010" */
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 		I2C_BOARD_INFO("tps65010", 0x48),
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+		.dev_name = "tps65010",
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 		.platform_data	= &tps_board,
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 	},
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@@ -277,6 +285,16 @@
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 	/* the CF I/O IRQ is really active-low */
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 	irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
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 }
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+
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+static struct gpiod_lookup_table osk_usb_gpio_table = {
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+	.dev_id = "ohci",
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+	.table = {
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+		/* Power GPIO on the I2C-attached TPS65010 */
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+		GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH),
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+		GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
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+			    GPIO_ACTIVE_HIGH),
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+	},
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+};
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 static struct omap_usb_config osk_usb_config __initdata = {
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 	/* has usb host connector (A) ... for development it can also
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@@ -581,6 +599,7 @@
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 	l |= (3 << 1);
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 	omap_writel(l, USB_TRANSCEIVER_CTRL);
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+	gpiod_add_lookup_table(&osk_usb_gpio_table);
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 	omap1_usb_init(&osk_usb_config);
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 	/* irq for tps65010 chip */