mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2025-01-01 10:42:11 +00:00
The linux-next integration testing tree
ab5fe88aef
Drivers should do only device-specific jobs. But in general, drivers using legacy PCI PM framework for .suspend()/.resume() have to manage many PCI PM-related tasks themselves which can be done by PCI Core itself. This brings extra load on the driver and it directly calls PCI helper functions to handle them. Switch to the new generic framework by updating function signatures and define a "struct dev_pm_ops" variable to bind PM callbacks. The via_suspend() is designed to function only in the case of Suspend. Thus, the code checked for "if (state.event != PM_EVENT_SUSPEND)". This is because, in the legacy framework, this callback was invoked even in the event of Freeze and Hibernate. Hence, added the load of unnecessary function-calls. The goal can be achieved by binding the callback with only "via_pm_ops.suspend" in the new framework. This also avoids the step of checking "if (state.event != PM_EVENT_SUSPEND)" every time the callback is invoked. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Cc: Bjorn Helgaas <helgaas@kernel.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Bjorn Helgaas <bjorn@helgaas.com> Cc: Vaibhav Gupta <vaibhav.varodek@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Andres Salomon <dilinger@queued.net> CC: Antonino Daplas <adaplas@gmail.com> Cc: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200819185654.151170-4-vaibhavgupta40@gmail.com |
||
---|---|---|
arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.