From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Kai-Heng Feng <kai.heng.feng@canonical.com>,
Mario Kleiner <mario.kleiner.de@gmail.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [PATCH 4.4 16/22] drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
Date: Mon, 26 Feb 2018 21:16:16 +0100 [thread overview]
Message-ID: <20180226201559.436941282@linuxfoundation.org> (raw)
In-Reply-To: <20180226201558.681421374@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
commit 06998a756a3865817b87a129a7e5d5bb66dc1ec3 upstream.
Similar to commit e10aec652f31 ("drm/edid: Add 6 bpc quirk for display
AEO model 0."), the EDID reports "DFP 1.x compliant TMDS" but it support
6bpc instead of 8 bpc.
Hence, use 6 bpc quirk for this panel.
Fixes: 196f954e2509 ("drm/i915/dp: Revert "drm/i915/dp: fall back to 18 bpp when sink capability is unknown"")
BugLink: https://bugs.launchpad.net/bugs/1749420
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180218085359.7817-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/drm_edid.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -106,6 +106,9 @@ static struct edid_quirk {
/* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
{ "AEO", 0, EDID_QUIRK_FORCE_6BPC },
+ /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
+ { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC },
+
/* Belinea 10 15 55 */
{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
next prev parent reply other threads:[~2018-02-26 20:16 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-26 20:16 [PATCH 4.4 00/22] 4.4.119-stable review Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 01/22] netfilter: drop outermost socket lock in getsockopt() Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 02/22] powerpc/64s: Fix RFI flush dependency on HARDLOCKUP_DETECTOR Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 03/22] PCI: keystone: Fix interrupt-controller-node lookup Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 04/22] ip_tunnel: replace dst_cache with generic implementation Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 05/22] ip_tunnel: fix preempt warning in ip tunnel creation/updating Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 06/22] xtensa: fix high memory/reserved memory collision Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 07/22] scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 08/22] cfg80211: fix cfg80211_beacon_dup Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 09/22] iio: buffer: check if a buffer has been set up when poll is called Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 10/22] iio: adis_lib: Initialize trigger before requesting interrupt Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 11/22] x86/oprofile: Fix bogus GCC-8 warning in nmi_setup() Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 12/22] irqchip/gic-v3: Use wmb() instead of smb_wmb() in gic_raise_softirq() Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 13/22] usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks() Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 14/22] arm64: Disable unhandled signal log messages by default Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 15/22] Add delay-init quirk for Corsair K70 RGB keyboards Greg Kroah-Hartman
2018-02-26 20:16 ` Greg Kroah-Hartman [this message]
2018-02-26 20:16 ` [PATCH 4.4 17/22] usb: dwc3: gadget: Set maxpacket size for ep0 IN Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 18/22] usb: ldusb: add PIDs for new CASSY devices supported by this driver Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 19/22] usb: gadget: f_fs: Process all descriptors during bind Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 20/22] usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 21/22] drm/amdgpu: Avoid leaking PM domain on driver unbind (v2) Greg Kroah-Hartman
2018-02-26 20:16 ` [PATCH 4.4 22/22] binder: add missing binder_unlock() Greg Kroah-Hartman
2018-02-27 0:08 ` [PATCH 4.4 00/22] 4.4.119-stable review Nathan Chancellor
2018-02-27 13:10 ` Greg Kroah-Hartman
2018-02-27 0:56 ` Shuah Khan
2018-02-27 4:18 ` kernelci.org bot
2018-02-27 7:17 ` Naresh Kamboju
2018-02-27 10:56 ` Guenter Roeck
2018-02-27 18:33 ` Greg Kroah-Hartman
2018-02-27 14:55 ` Guenter Roeck
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