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path: root/sound/soc/codecs/wm9713.h
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/*
 * wm9713.h  --  WM9713 Soc Audio driver
 */

#ifndef _WM9713_H
#define _WM9713_H

/* clock inputs */
#define WM9713_CLKA_PIN			0
#define WM9713_CLKB_PIN			1

/* clock divider ID's */
#define WM9713_PCMCLK_DIV		0
#define WM9713_CLKA_MULT		1
#define WM9713_CLKB_MULT		2
#define WM9713_HIFI_DIV			3
#define WM9713_PCMBCLK_DIV		4
#define WM9713_PCMCLK_PLL_DIV           5
#define WM9713_HIFI_PLL_DIV             6

/* Calculate the appropriate bit mask for the external PCM clock divider */
#define WM9713_PCMDIV(x)	((x - 1) << 8)

/* Calculate the appropriate bit mask for the external HiFi clock divider */
#define WM9713_HIFIDIV(x)	((x - 1) << 12)

/* MCLK clock mulitipliers */
#define WM9713_CLKA_X1		(0 << 1)
#define WM9713_CLKA_X2		(1 << 1)
#define WM9713_CLKB_X1		(0 << 2)
#define WM9713_CLKB_X2		(1 << 2)

/* MCLK clock MUX */
#define WM9713_CLK_MUX_A		(0 << 0)
#define WM9713_CLK_MUX_B		(1 << 0)

/* Voice DAI BCLK divider */
#define WM9713_PCMBCLK_DIV_1	(0 << 9)
#define WM9713_PCMBCLK_DIV_2	(1 << 9)
#define WM9713_PCMBCLK_DIV_4	(2 << 9)
#define WM9713_PCMBCLK_DIV_8	(3 << 9)
#define WM9713_PCMBCLK_DIV_16	(4 << 9)

#endif
or 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 'sound/usb/caiaq/input.c')