/* * Copyright (C) 1999 ARM Limited * Copyright (C) 2000 Deep Blue Solutions Ltd * Copyright 2006-2007,2010 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Juergen Beisert, kernel@pengutronix.de * Copyright 2009 Ilya Yanok, Emcraft Systems Ltd, yanok@emcraft.com * Copyright (C) 2011 Wolfram Sang, Pengutronix e.K. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include #include #include #include #include #include #define STMP_MODULE_CLKGATE (1 << 30) #define STMP_MODULE_SFTRST (1 << 31) /* * Clear the bit and poll it cleared. This is usually called with * a reset address and mask being either SFTRST(bit 31) or CLKGATE * (bit 30). */ static int stmp_clear_poll_bit(void __iomem *addr, u32 mask) { int timeout = 0x400; writel(mask, addr + STMP_OFFSET_REG_CLR); udelay(1); while ((readl(addr) & mask) && --timeout) /* nothing */; return !timeout; } int stmp_reset_block(void __iomem *reset_addr) { int ret; int timeout = 0x400; /* clear and poll SFTRST */ ret = stmp_clear_poll_bit(reset_addr, STMP_MODULE_SFTRST); if (unlikely(ret)) goto error; /* clear CLKGATE */ writel(STMP_MODULE_CLKGATE, reset_addr + STMP_OFFSET_REG_CLR); /* set SFTRST to reset the block */ writel(STMP_MODULE_SFTRST, reset_addr + STMP_OFFSET_REG_SET); udelay(1); /* poll CLKGATE becoming set */ while ((!(readl(reset_addr) & STMP_MODULE_CLKGATE)) && --timeout) /* nothing */; if (unlikely(!timeout)) goto error; /* clear and poll SFTRST */ ret = stmp_clear_poll_bit(reset_addr, STMP_MODULE_SFTRST); if (unlikely(ret)) goto error; /* clear and poll CLKGATE */ ret = stmp_clear_poll_bit(reset_addr, STMP_MODULE_CLKGATE); if (unlikely(ret)) goto error; return 0; error: pr_err("%s(%p): module reset timeout\n", __func__, reset_addr); return -ETIMEDOUT; } EXPORT_SYMBOL(stmp_reset_block); >diff
path: root/drivers/usb/gadget/udc/bdc/bdc.h
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authorMarcel J.E. Mol <marcel@mesa.nl>2017-01-30 19:26:40 +0100
committerJohan Hovold <johan@kernel.org>2017-01-31 17:27:04 +0100
commitd07830db1bdb254e4b50d366010b219286b8c937 (patch)
tree354d7fca237fa3d7e7e63c2196eaa4e1086838ea /drivers/usb/gadget/udc/bdc/bdc.h
parent5d03a2fd2292e71936c4235885c35ccc3c94695b (diff)
USB: serial: pl2303: add ATEN device ID
Seems that ATEN serial-to-usb devices using pl2303 exist with different device ids. This patch adds a missing device ID so it is recognised by the driver. Signed-off-by: Marcel J.E. Mol <marcel@mesa.nl> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/gadget/udc/bdc/bdc.h')