linux-kernel - [PATCH v2 0/2] DRM: Add runtime PM to Exynos DSI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-id: <1415368439-23642-1-git-send-email-k.kozlowski@samsung.com>
Date:	Fri, 07 Nov 2014 14:53:57 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Inki Dae <inki.dae@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	David Airlie <airlied@...ux.ie>,
	Kukjin Kim <kgene.kim@...sung.com>,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Andrzej Hajda <a.hajda@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Kevin Hilman <khilman@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH v2 0/2] DRM: Add runtime PM to Exynos DSI

Hi,

Changes since v1
================
1. Replace patch 1 changing PM core with fix only for DRM exynos driver.

Description
===========
The goal of the patch 2 is to add runtime PM to the Exynos DSI driver.
This allows LCD power domain to be turned off.

However after adding this patch an interesing issue came in. The DSI
driver could not runtime resume during sustem resume because power
domain was not allowed to power on.

The issue is solved by patch 1.

Tested on Trats2 board.

Comments are welcomed.

Best regards,
Krzysztof


Krzysztof Kozlowski (2):
  drm/exynos: Fix DSI resuming fail because power domain being off
  drm/exynos/dsi: Add runtime PM so LCD power domain could be turned off

 drivers/gpu/drm/exynos/exynos_drm_drv.c | 2 --
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 9 +++++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/