/* * nv_tco: TCO timer driver for nVidia chipsets. * * (c) Copyright 2005 Google Inc., All Rights Reserved. * * Supported Chipsets: * - MCP51/MCP55 * * (c) Copyright 2000 kernel concepts , All Rights * Reserved. * http://www.kernelconcepts.de * * 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. * * Neither kernel concepts nor Nils Faerber admit liability nor provide * warranty for any of this software. This material is provided * "AS-IS" and at no charge. * * (c) Copyright 2000 kernel concepts * developed for * Jentro AG, Haar/Munich (Germany) * * TCO timer driver for NV chipsets * based on softdog.c by Alan Cox */ /* * Some address definitions for the TCO */ #define TCO_RLD(base) ((base) + 0x00) /* TCO Timer Reload and Current Value */ #define TCO_TMR(base) ((base) + 0x01) /* TCO Timer Initial Value */ #define TCO_STS(base) ((base) + 0x04) /* TCO Status Register */ /* * TCO Boot Status bit: set on TCO reset, reset by software or standby * power-good (survives reboots), unfortunately this bit is never * set. */ # define TCO_STS_BOOT_STS (1 << 9) /* * first and 2nd timeout status bits, these also survive a warm boot, * and they work, so we use them. */ # define TCO_STS_TCO_INT_STS (1 << 1) # define TCO_STS_TCO2TO_STS (1 << 10) # define TCO_STS_RESET (TCO_STS_BOOT_STS | TCO_STS_TCO2TO_STS | \ TCO_STS_TCO_INT_STS) #define TCO_CNT(base) ((base) + 0x08) /* TCO Control Register */ # define TCO_CNT_TCOHALT (1 << 12) #define MCP51_SMBUS_SETUP_B 0xe8 # define MCP51_SMBUS_SETUP_B_TCO_REBOOT (1 << 25) /* * The SMI_EN register is at the base io address + 0x04, * while TCOBASE is + 0x40. */ #define MCP51_SMI_EN(base) ((base) - 0x40 + 0x04) # define MCP51_SMI_EN_TCO ((1 << 4) | (1 << 5)) href='/cgit.cgi/linux/net-next.git/diff/tools/perf/arch/x86/util/unwind-libdw.c?id=33e962c8871f015f5c8978384553dddcf5b81b22'>diff
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authorStanislaw Gruszka <sgruszka@redhat.com>2017-01-29 12:40:52 +0100
committerKalle Valo <kvalo@codeaurora.org>2017-01-31 09:08:52 +0200
commit33e962c8871f015f5c8978384553dddcf5b81b22 (patch)
tree43aff96c2ee21d9e0fa2018457778a4de52053cd /tools/perf/arch/x86/util/unwind-libdw.c
parent575ddce0507789bf9830d089557d2199d2f91865 (diff)
rt2x00: fix clk_get call
clk_get() takes two arguments and might return ERR_PTR(), so we have to nullify pointer on that case, to do not break further call to clk_get_rate(). Reported-by: Felix Fietkau <nbd@nbd.name> Fixes: 34db70b92fae ("rt2x00: add copy of clk for soc devices") Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'tools/perf/arch/x86/util/unwind-libdw.c')