From: zain wang <wzz@rock-chips.com>
To: Sean Paul <seanpaul@chromium.org>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Inki Dae <inki.dae@samsung.com>, David Airlie <airlied@linux.ie>
Cc: "Tomeu Vizoso" <tomeu.vizoso@collabora.com>,
"Mika Kahola" <mika.kahola@intel.com>,
"Stéphane Marchesin" <marcheu@chromium.org>,
"Tomasz Figa" <tfiga@chromium.org>,
dianders@chromium.org, "Thierry Reding" <treding@nvidia.com>,
"Heiko Stuebner" <heiko@sntech.de>,
"Jingoo Han" <jingoohan1@gmail.com>,
"Javier Martinez Canillas" <javier@osg.samsung.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-samsung-soc@vger.kernel.org,
linux-rockchip@lists.infradead.org,
"zain wang" <wzz@rock-chips.com>
Subject: [PATCH v2] drm/bridge: analogix: Don't return -EINVAL when panel not support PSR in PSR functions
Date: Wed, 7 Dec 2016 08:57:33 +0800 [thread overview]
Message-ID: <1481072253-8917-1-git-send-email-wzz@rock-chips.com> (raw)
We will ignored PSR setting if panel not support it. So, in this case, we should
return from analogix_dp_enable/disable_psr() without any error code.
Let's retrun 0 instead of -EINVAL when panel not support PSR in
analogix_dp_enable/disable_psr().
Signed-off-by: zain wang <wzz@rock-chips.com>
---
Changes in v2:
- Remove dev_warn if panel not support PSR.
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 6e0447f..eb9bf87 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -112,7 +112,7 @@ int analogix_dp_enable_psr(struct device *dev)
struct edp_vsc_psr psr_vsc;
if (!dp->psr_support)
- return -EINVAL;
+ return 0;
/* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
memset(&psr_vsc, 0, sizeof(psr_vsc));
@@ -135,7 +135,7 @@ int analogix_dp_disable_psr(struct device *dev)
struct edp_vsc_psr psr_vsc;
if (!dp->psr_support)
- return -EINVAL;
+ return 0;
/* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
memset(&psr_vsc, 0, sizeof(psr_vsc));
--
1.9.1
next reply other threads:[~2016-12-07 0:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 0:57 zain wang [this message]
2016-12-07 3:16 ` [PATCH v2] drm/bridge: analogix: Don't return -EINVAL when panel not support PSR in PSR functions Archit Taneja
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=1481072253-8917-1-git-send-email-wzz@rock-chips.com \
--to=wzz@rock-chips.com \
--cc=airlied@linux.ie \
--cc=daniel.vetter@ffwll.ch \
--cc=dianders@chromium.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=heiko@sntech.de \
--cc=inki.dae@samsung.com \
--cc=javier@osg.samsung.com \
--cc=jingoohan1@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=marcheu@chromium.org \
--cc=mika.kahola@intel.com \
--cc=seanpaul@chromium.org \
--cc=tfiga@chromium.org \
--cc=tomeu.vizoso@collabora.com \
--cc=treding@nvidia.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.