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Groups > linux.kernel > #1625562

[PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only bound to V3D.

From Eric Anholt <eric@anholt.net>
Newsgroups linux.kernel
Subject [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only bound to V3D.
Date 2017-04-18 21:20 +0200
Message-ID <txGPn-1wE-7@gated-at.bofh.it> (permalink)
References <txGPn-1wE-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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The FBDEV initialization would throw an error in dmesg, when we just
want to silently not initialize fbdev on a V3D-only VC4 instance.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/vc4/vc4_kms.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index ad7925a9e0ea..237a504f11f0 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -230,10 +230,12 @@ int vc4_kms_load(struct drm_device *dev)
 
 	drm_mode_config_reset(dev);
 
-	vc4->fbdev = drm_fbdev_cma_init(dev, 32,
-					dev->mode_config.num_connector);
-	if (IS_ERR(vc4->fbdev))
-		vc4->fbdev = NULL;
+	if (dev->mode_config.num_connector) {
+		vc4->fbdev = drm_fbdev_cma_init(dev, 32,
+						dev->mode_config.num_connector);
+		if (IS_ERR(vc4->fbdev))
+			vc4->fbdev = NULL;
+	}
 
 	drm_kms_helper_poll_init(dev);
 
-- 
2.11.0

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Thread

[PATCH 1/3] drm/vc4: Turn the V3D clock on at runtime. Eric Anholt <eric@anholt.net> - 2017-04-18 21:20 +0200
  [PATCH 3/3] drm/vc4: Add specific compatible strings for Cygnus. Eric Anholt <eric@anholt.net> - 2017-04-18 21:20 +0200
    Re: [PATCH 3/3] drm/vc4: Add specific compatible strings for Cygnus. Rob Herring <robh@kernel.org> - 2017-04-20 22:40 +0200
  [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only bound to V3D. Eric Anholt <eric@anholt.net> - 2017-04-18 21:20 +0200
    Re: [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only  bound to V3D. Daniel Vetter <daniel@ffwll.ch> - 2017-04-19 07:10 +0200
      Re: [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only bound to V3D. Eric Anholt <eric@anholt.net> - 2017-04-19 20:00 +0200
        Re: [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only  bound to V3D. Daniel Vetter <daniel@ffwll.ch> - 2017-04-19 21:40 +0200
          Re: [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only bound to V3D. Eric Anholt <eric@anholt.net> - 2017-04-22 01:00 +0200
            Re: [PATCH 2/3] drm/vc4: Don't try to initialize FBDEV if we're only  bound to V3D. Alex Deucher <alexdeucher@gmail.com> - 2017-04-24 16:30 +0200
  Re: [PATCH 1/3] drm/vc4: Turn the V3D clock on at runtime. Eric Anholt <eric@anholt.net> - 2017-04-18 21:30 +0200
  [PATCH 1/3 v2] drm/vc4: Turn the V3D clock on at runtime. Eric Anholt <eric@anholt.net> - 2017-04-19 01:40 +0200
    Re: [PATCH 1/3 v2] drm/vc4: Turn the V3D clock on at runtime. Florian Fainelli <f.fainelli@gmail.com> - 2017-04-19 01:50 +0200
      Re: [PATCH 1/3 v2] drm/vc4: Turn the V3D clock on at runtime. Eric Anholt <eric@anholt.net> - 2017-04-19 02:10 +0200
      Re: [PATCH 1/3 v2] drm/vc4: Turn the V3D clock on at runtime. Eric Anholt <eric@anholt.net> - 2017-04-19 02:10 +0200
      [PATCH 1/3 v3] drm/vc4: Turn the V3D clock on at runtime. Eric Anholt <eric@anholt.net> - 2017-04-24 22:20 +0200

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