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* [PATCH v2 0/6] [media] pci: use generic power management
@ 2020-07-17  3:56 ` Vaibhav Gupta
  0 siblings, 0 replies; 28+ messages in thread
From: Vaibhav Gupta @ 2020-07-17  3:56 UTC (permalink / raw)
  To: Bjorn Helgaas, Bjorn Helgaas, Bjorn Helgaas, Vaibhav Gupta,
	Mauro Carvalho Chehab
  Cc: Vaibhav Gupta, linux-kernel, linux-media, linux-kernel-mentees,
	Shuah Khan

Linux Kernel Mentee: Remove Legacy Power Management.

The purpose of this patch series is to upgrade power management in media
drivers. This has been done by upgrading .suspend() and .resume() callbacks.

The upgrade makes sure that the involvement of PCI Core does not change the
order of operations executed in a driver. Thus, does not change its behavior.

In general, drivers with legacy PM, .suspend() and .resume() make use of PCI
helper functions like pci_enable/disable_device_mem(), pci_set_power_state(),
pci_save/restore_state(), pci_enable/disable_device(), etc. to complete
their job.

The conversion requires the removal of those function calls, change the
callbacks' definition accordingly and make use of dev_pm_ops structure.

v2: v1 possibly broke cx23885 and cx25821.

All patches are compile-tested only.

Test tools:
    - Compiler: gcc (GCC) 10.1.0
    - allmodconfig build: make -j$(nproc) W=1 all

Vaibhav Gupta (6):
  sta2x11: use generic power management
  cx23885: use generic power management
  cx25821: use generic power management
  cx88: use generic power management
  meye: use generic power management
  tw68: use generic power management

 drivers/media/pci/cx23885/cx23885-core.c |  3 --
 drivers/media/pci/cx25821/cx25821-core.c |  3 --
 drivers/media/pci/cx88/cx88-video.c      | 52 +++++--------------
 drivers/media/pci/meye/meye.c            | 15 ++----
 drivers/media/pci/sta2x11/sta2x11_vip.c  | 63 ++++++------------------
 drivers/media/pci/tw68/tw68-core.c       | 30 +++++------
 6 files changed, 44 insertions(+), 122 deletions(-)

-- 
2.27.0


^ permalink raw reply	[flat|nested] 28+ messages in thread

end of thread, other threads:[~2020-07-17 10:53 UTC | newest]

Thread overview: 28+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-17  3:56 [PATCH v2 0/6] [media] pci: use generic power management Vaibhav Gupta
2020-07-17  3:56 ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  3:56 ` [PATCH v2 1/6] sta2x11: " Vaibhav Gupta
2020-07-17  3:56   ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  3:56 ` [PATCH v2 2/6] cx23885: " Vaibhav Gupta
2020-07-17  3:56   ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  3:56 ` [PATCH v2 3/6] cx25821: " Vaibhav Gupta
2020-07-17  3:56   ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  3:56 ` [PATCH v2 4/6] cx88: " Vaibhav Gupta
2020-07-17  3:56   ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  7:14   ` kernel test robot
2020-07-17  7:14     ` kernel test robot
2020-07-17  7:14     ` [Linux-kernel-mentees] " kernel test robot
2020-07-17  7:24     ` Vaibhav Gupta
2020-07-17  7:24       ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17 10:31       ` Vaibhav Gupta
2020-07-17 10:31         ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17 10:49         ` Hans Verkuil
2020-07-17 10:49           ` Hans Verkuil
2020-07-17 10:49           ` [Linux-kernel-mentees] " Hans Verkuil
2020-07-17 10:51           ` Vaibhav Gupta
2020-07-17 10:51             ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  3:56 ` [PATCH v2 5/6] meye: " Vaibhav Gupta
2020-07-17  3:56   ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  3:56 ` [PATCH v2 6/6] tw68: " Vaibhav Gupta
2020-07-17  3:56   ` [Linux-kernel-mentees] " Vaibhav Gupta
2020-07-17  4:56 ` [PATCH v2 0/6] [media] pci: " Vaibhav Gupta
2020-07-17  4:56   ` [Linux-kernel-mentees] " Vaibhav Gupta

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