linux-kernel - [PATCH v2 0/2] drm/rockchip: lvds: improve erroring out when drm_of_find_panel_or

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Message-ID: <20231120-rk-lvds-defer-msg-v2-0-9c59a5779cf9@theobroma-systems.com>
Date:   Mon, 20 Nov 2023 13:29:47 +0100
From:   Quentin Schulz <foss+kernel@...il.net>
To:     Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Yao <markyao0591@...il.com>
Cc:     Quentin Schulz <foss+kernel@...il.net>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Fabio Estevam <festevam@...il.com>,
        Quentin Schulz <quentin.schulz@...obroma-systems.com>
Subject: [PATCH v2 0/2] drm/rockchip: lvds: improve erroring out when drm_of_find_panel_or_bridge fails

drm_of_find_panel_or_bridge may return a different error code than
EPROBE_DEFER so let's not overwrite it.

At the same time, let's demote the DRM_DEV_ERROR message to
dev_err_probe so that the scary message isn't shown (by default)
whenever EPROBE_DEFER is returned to not mislead users.

Signed-off-by: Quentin Schulz <quentin.schulz@...obroma-systems.com>
---
Changes in v2:
- add a patch for not overwriting return code with EPROBE_DEFER
- use dev_err_probe instead of DRM_DEV_DEBUG
- Link to v1: https://lore.kernel.org/r/20231117-rk-lvds-defer-msg-v1-1-1e6894cf9a74@theobroma-systems.com

---
Quentin Schulz (2):
      drm/rockchip: lvds: do not overwrite error code
      drm/rockchip: lvds: do not print scary message when probing defer

 drivers/gpu/drm/rockchip/rockchip_lvds.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
base-commit: 98b1cc82c4affc16f5598d4fa14b1858671b2263
change-id: 20231117-rk-lvds-defer-msg-b2944b73d791

Best regards,
-- 
Quentin Schulz <quentin.schulz@...obroma-systems.com>