twl4030-gpio: beagle pull up/down init
Subsystems (3)
PATCH 2/2 twl4030-gpio: beagle pull up/down init
From: David Brownell <[email protected]>
Better TWL init on Beagle: use the setup() callback to learn IRQ assignments; and configure pullups/pulldowns.
Signed-off-by David Brownell <[email protected]>
---
Similar patches will be needed for other TWL based boards.
arch/arm/mach-omap2/board-omap3beagle.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-)
arch/arm/mach-omap2/board-omap3beagle.c +21 -5
@@ -115,15 +115,31 @@ static struct twl4030_usb_data beagle_us .usb_mode = T2_USB_MODE_ULPI, }; +static int beagle_twl_gpio_setup (struct device *dev, +unsigned gpio,unsigned ngpio) +{ +/* request_gpio(gpio + 0, "mmc0_cd"); +* gpio_direction_input(gpio + 0); +*/ + +gpio_request (gpio +1 ,"EHCI_nOC" ); +gpio_direction_input (gpio +1 ); + +/* gpio + 18 + 0 == ledA, nEN_USB_PWR (out) +* gpio + 18 + 1 == ledB, PMU_STAT (out, a LED) +*/ + +return 0 ; +} +static struct twl4030_gpio_platform_data beagle_gpio_data = { .gpio_base =OMAP_MAX_GPIO_LINES , .irq_base =TWL4030_GPIO_IRQ_BASE , .irq_end =TWL4030_GPIO_IRQ_END , - -/* REVISIT: setup() should use twl gpio index -* - 0 as MMC card detect, -* - 1 as EHCI port overcurrent (active low) -*/ + .pullups =BIT (1 ), + .pulldowns =BIT (2 ) |BIT (6 ) |BIT (7 ) |BIT (8 ) |BIT (13 ) + |BIT (15 ) |BIT (16 ) |BIT (17 ), + .setup = beagle_twl_gpio_setup, };static struct twl4030_platform_data beagle_twldata = {