/* * atmel_ssc_dai.h - ALSA SSC interface for the Atmel SoC * * Copyright (C) 2005 SAN People * Copyright (C) 2008 Atmel * * Author: Sedji Gaouaou * ATMEL CORP. * * Based on at91-ssc.c by * Frank Mandarino * Based on pxa2xx Platform drivers by * Liam Girdwood * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _ATMEL_SSC_DAI_H #define _ATMEL_SSC_DAI_H #include #include #include "atmel-pcm.h" /* SSC system clock ids */ #define ATMEL_SYSCLK_MCK 0 /* SSC uses AT91 MCK as system clock */ /* SSC divider ids */ #define ATMEL_SSC_CMR_DIV 0 /* MCK divider for BCLK */ #define ATMEL_SSC_TCMR_PERIOD 1 /* BCLK divider for transmit FS */ #define ATMEL_SSC_RCMR_PERIOD 2 /* BCLK divider for receive FS */ /* * SSC direction masks */ #define SSC_DIR_MASK_UNUSED 0 #define SSC_DIR_MASK_PLAYBACK 1 #define SSC_DIR_MASK_CAPTURE 2 /* * SSC register values that Atmel left out of . These * are expected to be used with SSC_BF */ /* START bit field values */ #define SSC_START_CONTINUOUS 0 #define SSC_START_TX_RX 1 #define SSC_START_LOW_RF 2 #define SSC_START_HIGH_RF 3 #define SSC_START_FALLING_RF 4 #define SSC_START_RISING_RF 5 #define SSC_START_LEVEL_RF 6 #define SSC_START_EDGE_RF 7 #define SSS_START_COMPARE_0 8 /* CKI bit field values */ #define SSC_CKI_FALLING 0 #define SSC_CKI_RISING 1 /* CKO bit field values */ #define SSC_CKO_NONE 0 #define SSC_CKO_CONTINUOUS 1 #define SSC_CKO_TRANSFER 2 /* CKS bit field values */ #define SSC_CKS_DIV 0 #define SSC_CKS_CLOCK 1 #define SSC_CKS_PIN 2 /* FSEDGE bit field values */ #define SSC_FSEDGE_POSITIVE 0 #define SSC_FSEDGE_NEGATIVE 1 /* FSOS bit field values */ #define SSC_FSOS_NONE 0 #define SSC_FSOS_NEGATIVE 1 #define SSC_FSOS_POSITIVE 2 #define SSC_FSOS_LOW 3 #define SSC_FSOS_HIGH 4 #define SSC_FSOS_TOGGLE 5 #define START_DELAY 1 struct atmel_ssc_state { u32 ssc_cmr; u32 ssc_rcmr; u32 ssc_rfmr; u32 ssc_tcmr; u32 ssc_tfmr; u32 ssc_sr; u32 ssc_imr; }; struct atmel_ssc_info { char *name; struct ssc_device *ssc; spinlock_t lock; /* lock for dir_mask */ unsigned short dir_mask; /* 0=unused, 1=playback, 2=capture */ unsigned short initialized; /* true if SSC has been initialized */ unsigned short daifmt; unsigned short cmr_div; unsigned short tcmr_period; unsigned short rcmr_period; unsigned int forced_divider; struct atmel_pcm_dma_params *dma_params[2]; struct atmel_ssc_state ssc_state; unsigned long mck_rate; }; int atmel_ssc_set_audio(int ssc_id); void atmel_ssc_put_audio(int ssc_id); #endif /* _AT91_SSC_DAI_H */ -next.git/log/net/bluetooth/hidp/Kconfig?id=8672aed7bd865774257efd40929702759a869329&showmsg=1'>Expand)AuthorFilesLines 6space:mode:
authorBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
commit030305d69fc6963c16003f50d7e8d74b02d0a143 (patch)
tree363a4e34d199178769b7e7eeb26ea2620a55847b /net/kcm/Makefile
parent4d191b1b63c209e37bf27938ef365244d3c41084 (diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'net/kcm/Makefile')