linux-kernel - [PATCH v5 08/20] drm/bridge: ti-sn65dsi86: Move all the chip-related init to the start

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Message-Id: <20210423095743.v5.8.Ide8ba40feb2e43bc98a11edbb08d696d62dcd83e@changeid>
Date:   Fri, 23 Apr 2021 09:58:54 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Sam Ravnborg <sam@...nborg.org>, Wolfram Sang <wsa@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, robdclark@...omium.org,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Steev Klimaszewski <steev@...i.org>,
        Linus W <linus.walleij@...aro.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        linux-i2c@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        dri-devel@...ts.freedesktop.org,
        Douglas Anderson <dianders@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Robert Foss <robert.foss@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v5 08/20] drm/bridge: ti-sn65dsi86: Move all the chip-related init to the start

This is just code motion of the probe routine to move all the things
that are for the "whole chip" (instead of the GPIO parts or the
MIPI-to-eDP parts) together at the start of probe. This is in
preparation for breaking the driver into sub-drivers.

Since we're using devm for all of the "whole chip" stuff this is
actually quite easy now.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---

(no changes since v1)

 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 75a41198993f..68673f736b23 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -1254,12 +1254,6 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
 		return PTR_ERR(pdata->regmap);
 	}
 
-	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &pdata->panel, NULL);
-	if (ret) {
-		DRM_ERROR("could not find any panel node\n");
-		return ret;
-	}
-
 	pdata->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
 	if (IS_ERR(pdata->enable_gpio)) {
 		DRM_ERROR("failed to get enable gpio from DT\n");
@@ -1267,8 +1261,6 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	ti_sn_bridge_parse_lanes(pdata, dev->of_node);
-
 	ret = ti_sn65dsi86_parse_regulators(pdata);
 	if (ret) {
 		DRM_ERROR("failed to parse regulators\n");
@@ -1279,12 +1271,22 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
 	if (IS_ERR(pdata->refclk))
 		return PTR_ERR(pdata->refclk);
 
-	ret = ti_sn_bridge_parse_dsi_host(pdata);
+	pm_runtime_enable(dev);
+	ret = devm_add_action_or_reset(dev, ti_sn65dsi86_runtime_disable, dev);
 	if (ret)
 		return ret;
 
-	pm_runtime_enable(dev);
-	ret = devm_add_action_or_reset(dev, ti_sn65dsi86_runtime_disable, dev);
+	ti_sn65dsi86_debugfs_init(pdata);
+
+	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &pdata->panel, NULL);
+	if (ret) {
+		DRM_ERROR("could not find any panel node\n");
+		return ret;
+	}
+
+	ti_sn_bridge_parse_lanes(pdata, dev->of_node);
+
+	ret = ti_sn_bridge_parse_dsi_host(pdata);
 	if (ret)
 		return ret;
 
@@ -1302,8 +1304,6 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
 
 	drm_bridge_add(&pdata->bridge);
 
-	ti_sn65dsi86_debugfs_init(pdata);
-
 	return 0;
 }
 
-- 
2.31.1.498.g6c1eba8ee3d-goog