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ARM: OMAP: Use gpiolib with tps65010 for OSK 5912

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Convert OSK board to use new tps65010 gpiolib support.  This
includes moving its LED support from leds-osk to gpio-leds,
giving more trigger options and a net platform code shrink.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
David Brownell
2008-02-28 22:09:15 -08:00
committed by Tony Lindgren
parent 79966fd9b4
commit d94577d5a5
3 changed files with 82 additions and 117 deletions
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108
arch/arm/mach-omap1/board-osk.c
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@ -32,6 +32,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@ -183,11 +184,80 @@ static struct platform_device *osk5912_devices[] __initdata = {
&osk5912_mcbsp1_device,
};
static struct gpio_led tps_leds[] = {
/* NOTE: D9 and D2 have hardware blink support.
* Also, D9 requires non-battery power.
*/
{ .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", },
{ .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
{ .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
.default_trigger = "heartbeat", },
};
static struct gpio_led_platform_data tps_leds_data = {
.num_leds = 3,
.leds = tps_leds,
};
static struct platform_device osk5912_tps_leds = {
.name = "leds-gpio",
.id = 0,
.dev.platform_data = &tps_leds_data,
};
static int osk_tps_setup(struct i2c_client *client, void *context)
{
/* Set GPIO 1 HIGH to disable VBUS power supply;
* OHCI driver powers it up/down as needed.
*/
gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
/* Set GPIO 2 high so LED D3 is off by default */
tps65010_set_gpio_out_value(GPIO2, HIGH);
/* Set GPIO 3 low to take ethernet out of reset */
gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
/* GPIO4 is VDD_DSP */
gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
/* REVISIT if DSP support isn't configured, power it off ... */
/* Let LED1 (D9) blink; leds-gpio may override it */
tps65010_set_led(LED1, BLINK);
/* Set LED2 off by default */
tps65010_set_led(LED2, OFF);
/* Enable LOW_PWR handshake */
tps65010_set_low_pwr(ON);
/* Switch VLDO2 to 3.0V for AIC23 */
tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
| TPS_LDO1_ENABLE);
/* register these three LEDs */
osk5912_tps_leds.dev.parent = &client->dev;
platform_device_register(&osk5912_tps_leds);
return 0;
}
static struct tps65010_board tps_board = {
.base = OSK_TPS_GPIO_BASE,
.outmask = 0x0f,
.setup = osk_tps_setup,
};
static struct i2c_board_info __initdata osk_i2c_board_info[] = {
{
I2C_BOARD_INFO("tps65010", 0x48),
.type = "tps65010",
.irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
.platform_data = &tps_board,
},
/* TODO when driver support is ready:
* - aic23 audio chip at 0x1a
@ -488,44 +558,6 @@ static void __init osk_map_io(void)
omap1_map_common_io();
}
#ifdef CONFIG_TPS65010
static int __init osk_tps_init(void)
{
if (!machine_is_omap_osk())
return 0;
/* Let LED1 (D9) blink */
tps65010_set_led(LED1, BLINK);
/* Disable LED 2 (D2) */
tps65010_set_led(LED2, OFF);
/* Set GPIO 1 HIGH to disable VBUS power supply;
* OHCI driver powers it up/down as needed.
*/
tps65010_set_gpio_out_value(GPIO1, HIGH);
/* Set GPIO 2 low to turn on LED D3 */
tps65010_set_gpio_out_value(GPIO2, HIGH);
/* Set GPIO 3 low to take ethernet out of reset */
tps65010_set_gpio_out_value(GPIO3, LOW);
/* gpio4 for VDD_DSP */
/* FIXME send power to DSP iff it's configured */
/* Enable LOW_PWR */
tps65010_set_low_pwr(ON);
/* Switch VLDO2 to 3.0V for AIC23 */
tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
| TPS_LDO1_ENABLE);
return 0;
}
fs_initcall(osk_tps_init);
#endif
MACHINE_START(OMAP_OSK, "TI-OSK")
/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
.phys_io = 0xfff00000,