From: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Better TWL init on Beagle: use the setup() callback to
learn IRQ assignments; and configure pullups/pulldowns.
Signed-off-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
---
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(-)
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -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 = {
--
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