linux-kernel-mentees.lists.linuxfoundation.org archive mirror
 help / color / mirror / Atom feed
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>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Thierry Reding <treding@nvidia.com>
Cc: linux-fbdev@vger.kernel.org,
	Vaibhav Gupta <vaibhavgupta40@gmail.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-kernel-mentees@lists.linuxfoundation.org
Subject: [Linux-kernel-mentees] [PATCH v1 0/2] video: fbdev: radeonfb: PCI PM framework upgrade and fix-ups.
Date: Thu,  6 Aug 2020 12:52:54 +0530	[thread overview]
Message-ID: <20200806072256.585705-1-vaibhavgupta40@gmail.com> (raw)

Linux Kernel Mentee: Remove Legacy Power Management. 

The original goal of the patch series is to upgrade the power management
framework of radeonfb fbdev driver. 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.

During this process, it was found that "#if defined(CONFIG_PM)" at line 1434 is
redundant. This was introduced in the commit
42ddb453a0cd ("radeon: Conditionally compile PM code").

------------

Before 42ddb453a0cd:
$ git show 65122f7e80b5:drivers/video/aty/radeon_pm.c | grep -n "#ifdef\|#if\|#else\|#endif\|#elif\|#ifndef"

Based on output in terminal:

547:#ifdef CONFIG_PM
       |-- 959:#ifdef CONFIG_PPC_PMAC
       |-- 972:#endif
       |-- 1291:#ifdef CONFIG_PPC_OF
       |-- 1301:#endif /* CONFIG_PPC_OF */
       |-- 1943:#ifdef CONFIG_PPC_OF
                   |-- 2206:#if 0 /* Not ready yet */
                   |-- 2508:#endif /* 0 */
       |-- 2510:#endif /* CONFIG_PPC_OF */
       |-- 2648:#ifdef CONFIG_PPC_PMAC
       |-- 2654:#endif /* CONFIG_PPC_PMAC */
       |-- 2768:#ifdef CONFIG_PPC_PMAC
       |-- 2774:#endif /* CONFIG_PPC_PMAC */
       |-- 2791:#ifdef CONFIG_PPC_OF__disabled
       |-- 2801:#endif /* CONFIG_PPC_OF */
2803:#endif /* CONFIG_PM */

------------

After 42ddb453a0cd:
$ git show 42ddb453a0cd:drivers/video/aty/radeon_pm.c | grep -n "#ifdef\|#if\|#else\|#endif\|#elif\|#ifndef"

Based on output in terminal:

547:#ifdef CONFIG_PM
       |-- 959:#ifdef CONFIG_PPC_PMAC
       |-- 972:#endif
       |-- 1291:#ifdef CONFIG_PPC_OF
       |-- 1301:#endif /* CONFIG_PPC_OF */
       |-- 1430:#if defined(CONFIG_PM)
                   |-- 1431:#if defined(CONFIG_X86) || defined(CONFIG_PPC_PMAC)
                   |-- 1944:#endif
                   |-- 1946:#ifdef CONFIG_PPC_OF
                               |-- 1947:#ifdef CONFIG_PPC_PMAC
                               |-- 2208:#endif
                   |-- 2209:#endif
                   |-- 2211:#if 0 /* Not ready yet */
                   |-- 2513:#endif /* 0 */
       |-- 2515:#endif /* CONFIG_PPC_OF */
       |-- 2653:#ifdef CONFIG_PPC_PMAC
       |-- 2659:#endif /* CONFIG_PPC_PMAC */
       |-- 2773:#ifdef CONFIG_PPC_PMAC
       |-- 2779:#endif /* CONFIG_PPC_PMAC */
       |-- 2796:#ifdef CONFIG_PPC_OF__disabled
       |-- 2806:#endif /* CONFIG_PPC_OF */
2808:#endif /* CONFIG_PM */

------------

This also affected the CONFIG_PPC_OF container (line 1943 at commit 65122f7e80b5)

The patch-series fixes it along with PM upgrade.

All patches are compile-tested only.

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

Vaibhav Gupta (2):
  video: fbdev: aty: radeon_pm: remove redundant CONFIG_PM container
  fbdev: radeonfb:use generic power management

 drivers/video/fbdev/aty/radeon_base.c | 10 ++++---
 drivers/video/fbdev/aty/radeon_pm.c   | 38 ++++++++++++++++++++-------
 drivers/video/fbdev/aty/radeonfb.h    |  3 +--
 3 files changed, 35 insertions(+), 16 deletions(-)

-- 
2.27.0

_______________________________________________
Linux-kernel-mentees mailing list
Linux-kernel-mentees@lists.linuxfoundation.org
https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees

             reply	other threads:[~2020-08-06 11:03 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-06  7:22 Vaibhav Gupta [this message]
2020-08-06  7:26 ` Vaibhav Gupta
2020-08-06  7:26   ` [Linux-kernel-mentees] [PATCH v1 1/2] video: fbdev: aty: radeon_pm: remove redundant CONFIG_PM container Vaibhav Gupta
2020-09-07  6:33     ` Vaibhav Gupta
2020-09-07  6:48       ` Greg KH
2020-09-07  6:52         ` Vaibhav Gupta
2020-08-06  7:26   ` [Linux-kernel-mentees] [PATCH v1 2/2] fbdev: radeonfb:use generic power management Vaibhav Gupta
2020-09-07  6:34     ` Vaibhav Gupta
2020-09-07  6:31   ` [Linux-kernel-mentees] [PATCH v1 0/2] video: fbdev: radeonfb: PCI PM framework upgrade and fix-ups Vaibhav Gupta
2020-09-07  6:47     ` Greg KH
2020-09-07  7:55 ` Daniel Vetter
2020-09-07  9:16   ` Vaibhav Gupta
2020-09-07 17:57     ` Daniel Vetter
2020-09-07 10:29   ` Michel Dänzer
2020-09-07 11:58   ` Benjamin Herrenschmidt
     [not found] <CGME20200907070432eucas1p27ce44eec5f3eaf3644c868c7a965ee74@eucas1p2.samsung.com>
2020-09-07  7:02 ` Vaibhav Gupta
2020-09-08 11:37   ` Bartlomiej Zolnierkiewicz

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200806072256.585705-1-vaibhavgupta40@gmail.com \
    --to=vaibhavgupta40@gmail.com \
    --cc=b.zolnierkie@samsung.com \
    --cc=benh@kernel.crashing.org \
    --cc=bhelgaas@google.com \
    --cc=bjorn@helgaas.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=helgaas@kernel.org \
    --cc=linux-fbdev@vger.kernel.org \
    --cc=linux-kernel-mentees@lists.linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=thierry.reding@gmail.com \
    --cc=treding@nvidia.com \
    --cc=vaibhav.varodek@gmail.com \
    --subject='Re: [Linux-kernel-mentees] [PATCH v1 0/2] video: fbdev: radeonfb: PCI PM framework upgrade and fix-ups.' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).