From 141288b3a3249b79a168988c7d9e9ce817013d6f Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Mon, 1 Oct 2012 00:44:34 +0200 Subject: usb: ulpi: add indicator configuration function Allows for easy configuration of the VBUS indicator related ULPI config bits. Also move the external indicator setup from ulpi_set_vbus() to the new function. Signed-off-by: Lucas Stach Acked-by: Igor Grinberg --- drivers/usb/ulpi/ulpi.c | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/ulpi/ulpi.c b/drivers/usb/ulpi/ulpi.c index dde2585..23b59e7 100644 --- a/drivers/usb/ulpi/ulpi.c +++ b/drivers/usb/ulpi/ulpi.c @@ -106,20 +106,44 @@ int ulpi_select_transceiver(struct ulpi_viewport *ulpi_vp, unsigned speed) return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val); } -int ulpi_set_vbus(struct ulpi_viewport *ulpi_vp, int on, int ext_power, - int ext_ind) +int ulpi_set_vbus(struct ulpi_viewport *ulpi_vp, int on, int ext_power) { u32 flags = ULPI_OTG_DRVVBUS; u8 *reg = on ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear; if (ext_power) flags |= ULPI_OTG_DRVVBUS_EXT; - if (ext_ind) - flags |= ULPI_OTG_EXTVBUSIND; return ulpi_write(ulpi_vp, reg, flags); } +int ulpi_set_vbus_indicator(struct ulpi_viewport *ulpi_vp, int external, + int passthu, int complement) +{ + u32 flags, val; + u8 *reg; + + reg = external ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear; + val = ulpi_write(ulpi_vp, reg, ULPI_OTG_EXTVBUSIND); + if (val) + return val; + + flags = passthu ? ULPI_IFACE_PASSTHRU : 0; + flags |= complement ? ULPI_IFACE_EXTVBUS_COMPLEMENT : 0; + + val = ulpi_read(ulpi_vp, &ulpi->iface_ctrl); + if (val == ULPI_ERROR) + return val; + + val = val & ~(ULPI_IFACE_PASSTHRU & ULPI_IFACE_EXTVBUS_COMPLEMENT); + val |= flags; + val = ulpi_write(ulpi_vp, &ulpi->iface_ctrl, val); + if (val) + return val; + + return 0; +} + int ulpi_set_pd(struct ulpi_viewport *ulpi_vp, int enable) { u32 val = ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN; -- cgit v1.1