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usb: gadget: lpc32xx_udc: Fix compatibility with STOTG04

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The STOTG04 is an replacement for ISP1301.

Most of the registers on STOTG04 are the same as on ISP1301, but the
register ISP1301_I2C_OTG_CONTROL_2 (address 0x10) doesn't exist on the
ST part.

This is a work around for this by using the interrupt source register that
should behave the same on both parts and has the needed information.

Tested-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Alexandre Pereira da Silva 2012-10-15 09:47:35 -03:00 committed by Felipe Balbi
parent d5c6a1e024
commit 69da85edba
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/gadget/lpc32xx_udc.c
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@ -2930,10 +2930,10 @@ static void vbus_work(struct work_struct *work)
/* Get the VBUS status from the transceiver */
value = i2c_smbus_read_byte_data(udc->isp1301_i2c_client,
ISP1301_I2C_OTG_CONTROL_2);
ISP1301_I2C_INTERRUPT_SOURCE);
/* VBUS on or off? */
if (value & OTG_B_SESS_VLD)
if (value & INT_SESS_VLD)
udc->vbus = 1;
else
udc->vbus = 0;