From: Vaibhav Gupta <vaibhavgupta40@gmail.com>
To: Bjorn Helgaas <helgaas@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Bjorn Helgaas <bjorn@helgaas.com>,
Vaibhav Gupta <vaibhav.varodek@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-kernel-mentees@lists.linuxfoundation.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org
Subject: Re: [Linux-kernel-mentees] [PATCH v2 0/6] [media] pci: use generic power management
Date: Fri, 17 Jul 2020 10:26:48 +0530 [thread overview]
Message-ID: <20200717045648.GA121727@gmail.com> (raw)
In-Reply-To: <20200717035608.97254-1-vaibhavgupta40@gmail.com>
On Fri, Jul 17, 2020 at 09:26:02AM +0530, Vaibhav Gupta wrote:
> 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.
v1 didn't break anything in real as patch was not applied. But it could have.
>
> 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
>
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prev parent reply other threads:[~2020-07-17 4:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 3:56 [Linux-kernel-mentees] [PATCH v2 0/6] [media] pci: use generic power management Vaibhav Gupta
2020-07-17 3:56 ` [Linux-kernel-mentees] [PATCH v2 1/6] sta2x11: " Vaibhav Gupta
2020-07-17 3:56 ` [Linux-kernel-mentees] [PATCH v2 2/6] cx23885: " Vaibhav Gupta
2020-07-17 3:56 ` [Linux-kernel-mentees] [PATCH v2 3/6] cx25821: " Vaibhav Gupta
2020-07-17 3:56 ` [Linux-kernel-mentees] [PATCH v2 4/6] cx88: " Vaibhav Gupta
2020-07-17 7:14 ` kernel test robot
2020-07-17 7:24 ` Vaibhav Gupta
2020-07-17 10:31 ` Vaibhav Gupta
2020-07-17 10:49 ` Hans Verkuil
2020-07-17 10:51 ` Vaibhav Gupta
2020-07-17 3:56 ` [Linux-kernel-mentees] [PATCH v2 5/6] meye: " Vaibhav Gupta
2020-07-17 3:56 ` [Linux-kernel-mentees] [PATCH v2 6/6] tw68: " Vaibhav Gupta
2020-07-17 4:56 ` Vaibhav Gupta [this message]
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