From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Tarun Vyas <tarun.vyas@intel.com>,
Jani Nikula <jani.nikula@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jose Roberto de Souza <jose.souza@intel.com>,
dri-devel@lists.freedesktop.org, stable@vger.kernel.org,
Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Subject: [PATCH 4.14 46/52] drm/psr: Fix missed entry in PSR setup time table.
Date: Mon, 4 Jun 2018 08:58:41 +0200 [thread overview]
Message-ID: <20180604065608.439493500@linuxfoundation.org> (raw)
In-Reply-To: <20180604065606.532044490@linuxfoundation.org>
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
commit bdcc02cf1bb508fc700df7662f55058f651f2621 upstream.
Entry corresponding to 220 us setup time was missing. I am not aware of
any specific bug this fixes, but this could potentially result in enabling
PSR on a panel with a higher setup time requirement than supported by the
hardware.
I verified the value is present in eDP spec versions 1.3, 1.4 and 1.4a.
Fixes: 6608804b3d7f ("drm/dp: Add drm_dp_psr_setup_time()")
Cc: stable@vger.kernel.org
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jose Roberto de Souza <jose.souza@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Tarun Vyas <tarun.vyas@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180511195145.3829-3-dhinakaran.pandiyan@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/drm_dp_helper.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1139,6 +1139,7 @@ int drm_dp_psr_setup_time(const u8 psr_c
static const u16 psr_setup_time_us[] = {
PSR_SETUP_TIME(330),
PSR_SETUP_TIME(275),
+ PSR_SETUP_TIME(220),
PSR_SETUP_TIME(165),
PSR_SETUP_TIME(110),
PSR_SETUP_TIME(55),
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parent reply other threads:[~2018-06-04 7:02 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20180604065606.532044490@linuxfoundation.org>]
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