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From:   Maxime Ripard <maxime@cerno.tech>
To:     Jonas Karlman <jonas@kwiboo.se>, Sam Ravnborg <sam@ravnborg.org>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Daniel Vetter <daniel.vetter@intel.com>,
        David Airlie <airlied@linux.ie>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Maxime Ripard <maxime@cerno.tech>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Robert Foss <robert.foss@linaro.org>,
        Andrzej Hajda <a.hajda@samsung.com>
Cc:     linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH v3 5/8] drm/bridge: ps8640: Switch to devm MIPI-DSI helpers
Date:   Mon, 23 Aug 2021 10:47:20 +0200
Message-Id: <20210823084723.1493908-6-maxime@cerno.tech>
In-Reply-To: <20210823084723.1493908-1-maxime@cerno.tech>
References: <20210823084723.1493908-1-maxime@cerno.tech>
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Let's switch to the new devm MIPI-DSI function to register and attach
our secondary device. This also avoids leaking the device on removal.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/bridge/parade-ps8640.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c
index 7bd0affa057a..794c9516b05d 100644
--- a/drivers/gpu/drm/bridge/parade-ps8640.c
+++ b/drivers/gpu/drm/bridge/parade-ps8640.c
@@ -241,7 +241,7 @@ static int ps8640_bridge_attach(struct drm_bridge *bridge,
 	if (!host)
 		return -ENODEV;
 
-	dsi = mipi_dsi_device_register_full(host, &info);
+	dsi = devm_mipi_dsi_device_register_full(dev, host, &info);
 	if (IS_ERR(dsi)) {
 		dev_err(dev, "failed to create dsi device\n");
 		ret = PTR_ERR(dsi);
@@ -255,17 +255,13 @@ static int ps8640_bridge_attach(struct drm_bridge *bridge,
 			  MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
 	dsi->format = MIPI_DSI_FMT_RGB888;
 	dsi->lanes = DP_NUM_LANES;
-	ret = mipi_dsi_attach(dsi);
+	ret = devm_mipi_dsi_attach(dev, dsi);
 	if (ret)
-		goto err_dsi_attach;
+		return ret;
 
 	/* Attach the panel-bridge to the dsi bridge */
 	return drm_bridge_attach(bridge->encoder, ps_bridge->panel_bridge,
 				 &ps_bridge->bridge, flags);
-
-err_dsi_attach:
-	mipi_dsi_device_unregister(dsi);
-	return ret;
 }
 
 static struct edid *ps8640_bridge_get_edid(struct drm_bridge *bridge,
-- 
2.31.1