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From: Maxime Ripard <maxime@cerno.tech>
To: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Maxime Ripard <maxime@cerno.tech>,
	Sam Ravnborg <sam@ravnborg.org>,
	Daniel Vetter <daniel.vetter@intel.com>,
	David Airlie <airlied@linux.ie>,
	Thierry Reding <thierry.reding@gmail.com>,
	Andrzej Hajda <a.hajda@samsung.com>,
	Robert Foss <robert.foss@linaro.org>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>,
	Xinliang Liu <xinliang.liu@linaro.org>,
	linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Tian Tao <tiantao6@hisilicon.com>,
	freedreno@lists.freedesktop.org,
	Chen Feng <puck.chen@hisilicon.com>,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	John Stultz <john.stultz@linaro.org>,
	Rob Clark <robdclark@gmail.com>,
	linux-arm-msm@vger.kernel.org, Sean Paul <sean@poorly.run>,
	Inki Dae <inki.dae@samsung.com>,
	Xinwei Kong <kong.kongxinwei@hisilicon.com>,
	dri-devel@lists.freedesktop.org
Subject: [PATCH v5 04/21] drm/bridge: anx7625: Register and attach our DSI device at probe
Date: Thu, 21 Oct 2021 09:39:30 +0200	[thread overview]
Message-ID: <20211021073947.499373-5-maxime@cerno.tech> (raw)
In-Reply-To: <20211021073947.499373-1-maxime@cerno.tech>

In order to avoid any probe ordering issue, the best practice is to move
the secondary MIPI-DSI device registration and attachment to the
MIPI-DSI host at probe time. Let's do this.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 4adeb2bad03a..d0317651cd75 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1367,12 +1367,6 @@ static int anx7625_bridge_attach(struct drm_bridge *bridge,
 		return -ENODEV;
 	}
 
-	err = anx7625_attach_dsi(ctx);
-	if (err) {
-		DRM_DEV_ERROR(dev, "Fail to attach to dsi : %d\n", err);
-		return err;
-	}
-
 	if (ctx->pdata.panel_bridge) {
 		err = drm_bridge_attach(bridge->encoder,
 					ctx->pdata.panel_bridge,
@@ -1845,10 +1839,24 @@ static int anx7625_i2c_probe(struct i2c_client *client,
 	platform->bridge.type = DRM_MODE_CONNECTOR_eDP;
 	drm_bridge_add(&platform->bridge);
 
+	ret = anx7625_attach_dsi(platform);
+	if (ret) {
+		DRM_DEV_ERROR(dev, "Fail to attach to dsi : %d\n", ret);
+		goto unregister_bridge;
+	}
+
 	DRM_DEV_DEBUG_DRIVER(dev, "probe done\n");
 
 	return 0;
 
+unregister_bridge:
+	drm_bridge_remove(&platform->bridge);
+
+	if (!platform->pdata.low_power_mode)
+		pm_runtime_put_sync_suspend(&client->dev);
+
+	anx7625_unregister_i2c_dummy_clients(platform);
+
 free_wq:
 	if (platform->workqueue)
 		destroy_workqueue(platform->workqueue);
-- 
2.31.1


  parent reply	other threads:[~2021-10-21  7:40 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-21  7:39 [PATCH v5 00/21] drm/bridge: Make panel and bridge probe order consistent Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 01/21] drm/bridge: adv7533: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 02/21] drm/bridge: adv7511: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 03/21] drm/bridge: anx7625: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` Maxime Ripard [this message]
2021-10-21  7:39 ` [PATCH v5 05/21] drm/bridge: lt8912b: " Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 06/21] drm/bridge: lt8912b: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 07/21] drm/bridge: lt9611: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 08/21] drm/bridge: lt9611: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 09/21] drm/bridge: lt9611uxc: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 10/21] drm/bridge: lt9611uxc: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 11/21] drm/bridge: ps8640: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 12/21] drm/bridge: ps8640: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 13/21] drm/bridge: sn65dsi83: Fix bridge removal Maxime Ripard
2021-10-22 20:02   ` Marek Vasut
2021-10-21  7:39 ` [PATCH v5 14/21] drm/bridge: sn65dsi83: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 15/21] drm/bridge: sn65dsi83: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 16/21] drm/bridge: sn65dsi86: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 17/21] drm/bridge: sn65dsi86: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 18/21] drm/bridge: tc358775: Switch to devm MIPI-DSI helpers Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 19/21] drm/bridge: tc358775: Register and attach our DSI device at probe Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 20/21] drm/kirin: dsi: Adjust probe order Maxime Ripard
2021-10-21  7:39 ` [PATCH v5 21/21] drm/msm/dsi: " Maxime Ripard
2021-10-21 16:30   ` Rob Clark
     [not found] ` <YXGFz4o5fWrfGnGk@ravnborg.org>
2021-10-25 15:16   ` [PATCH v5 00/21] drm/bridge: Make panel and bridge probe order consistent Maxime Ripard
     [not found]     ` <YXbhSjsPXk944TlF@ravnborg.org>
2021-10-27  8:42       ` Maxime Ripard

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