linux-kernel - [PATCH] drm/vblank: remove outdated and noisy output

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Message-Id: <20200513201016.23047-1-wsa+renesas@sang-engineering.com>
Date:   Wed, 13 May 2020 22:10:16 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-renesas-soc@...r.kernel.org
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/vblank: remove outdated and noisy output

The R-Car DU driver calls drm_vblank_init via some helper functions in
probe(). From what I checked, most drivers do this as well. I have a
config now where DU always stays in deferred_probe state because of a
missing dependency. This means that every time I rebind another driver
like MMC, the vblank init message is displayed again when the DU driver
is retried. Because the message doesn't really carry a useful
information, I suggest to simply drop it.

Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
---
 drivers/gpu/drm/drm_vblank.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index da7b0b0c1090..ce9bed24c2da 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -483,8 +483,6 @@ int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs)
 		seqlock_init(&vblank->seqlock);
 	}
 
-	DRM_INFO("Supports vblank timestamp caching Rev 2 (21.10.2013).\n");
-
 	return 0;
 
 err:
-- 
2.20.1