Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Always allow hdaudio(4) to suspend

Browse Source 
Sometimes hdaudio(4) can fail to attach, but the device remains in the
tree. Even though the PMF registration is performed, it is explicitly
de-registered in the code path for errors - therefore preventing suspending
later. This patch makes sure PMF registration is performed accordingly upon
errors as well.

No objection on tech-kern@.

Tested on a Lenovo ThinkPad T440s (amd64).

XXX pull-up to netbsd-7
This commit is contained in:
khorben 2017-01-31 00:58:15 +00:00
parent ad2be979a1
commit 17bf1d3637
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sys/dev/pci/hdaudio_pci.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: hdaudio_pci.c,v 1.5 2016/12/16 11:34:52 nonaka Exp $ */
/* $NetBSD: hdaudio_pci.c,v 1.6 2017/01/31 00:58:15 khorben Exp $ */
/*
* Copyright (c) 2009 Precedence Technologies Ltd <support@precedence.co.uk>
@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.5 2016/12/16 11:34:52 nonaka Exp $");
__KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.6 2017/01/31 00:58:15 khorben Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -157,9 +157,6 @@ hdaudio_pci_attach(device_t parent, device_t self, void *opaque)
}
aprint_normal_dev(self, "interrupting at %s\n", intrstr);
if (!pmf_device_register(self, NULL, hdaudio_pci_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
hdaudio_pci_reinit(sc);
/* Attach bus-independent HD audio layer */
@ -176,8 +173,12 @@ hdaudio_pci_attach(device_t parent, device_t self, void *opaque)
csr &= ~(PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_BACKTOBACK_ENABLE);
pci_conf_write(sc->sc_pc, sc->sc_tag,
PCI_COMMAND_STATUS_REG, csr);
pmf_device_deregister(self);
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n");
}
else if (!pmf_device_register(self, NULL, hdaudio_pci_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
}
static int