linux-kernel - [PATCH 4.14 02/89] drm/nouveau/disp/gf119: add missing drive vfunc ptr

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Date:   Mon, 22 Jan 2018 09:44:42 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Rob Clark <robdclark@...il.com>,
        Ben Skeggs <bskeggs@...hat.com>, Sven Joachim <svenjoac@....de>
Subject: [PATCH 4.14 02/89] drm/nouveau/disp/gf119: add missing drive vfunc ptr

4.14-stable review patch.  If anyone has any objections, please let me know.

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

From: Rob Clark <robdclark@...il.com>

commit 1b5c7ef3d0d0610bda9b63263f7c5b7178d11015 upstream.

Fixes broken dp on GF119:

  Call Trace:
   ? nvkm_dp_train_drive+0x183/0x2c0 [nouveau]
   nvkm_dp_acquire+0x4f3/0xcd0 [nouveau]
   nv50_disp_super_2_2+0x5d/0x470 [nouveau]
   ? nvkm_devinit_pll_set+0xf/0x20 [nouveau]
   gf119_disp_super+0x19c/0x2f0 [nouveau]
   process_one_work+0x193/0x3c0
   worker_thread+0x35/0x3b0
   kthread+0x125/0x140
   ? process_one_work+0x3c0/0x3c0
   ? kthread_park+0x60/0x60
   ret_from_fork+0x25/0x30
  Code:  Bad RIP value.
  RIP:           (null) RSP: ffffb1e243e4bc38
  CR2: 0000000000000000

Fixes: af85389c614a drm/nouveau/disp: shuffle functions around
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103421
Signed-off-by: Rob Clark <robdclark@...il.com>
Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Cc: Sven Joachim <svenjoac@....de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
@@ -174,6 +174,7 @@ gf119_sor = {
 		.links = gf119_sor_dp_links,
 		.power = g94_sor_dp_power,
 		.pattern = gf119_sor_dp_pattern,
+		.drive = gf119_sor_dp_drive,
 		.vcpi = gf119_sor_dp_vcpi,
 		.audio = gf119_sor_dp_audio,
 		.audio_sym = gf119_sor_dp_audio_sym,