linux-kernel - [PATCH 4/4] drm/bridge: ti-sn65dsi86: use helper to lookup panel-id

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Date:   Sun, 30 Jun 2019 13:36:08 -0700
From:   Rob Clark <robdclark@...il.com>
To:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org
Cc:     freedreno@...ts.freedesktop.org, aarch64-laptops@...ts.linaro.org,
        Rob Clark <robdclark@...omium.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] drm/bridge: ti-sn65dsi86: use helper to lookup panel-id

From: Rob Clark <robdclark@...omium.org>

Use the drm_of_find_panel_id() helper to decide which endpoint to use
when looking up panel.  This way we can support devices that have
multiple possible panels, such as the aarch64 laptops.

Signed-off-by: Rob Clark <robdclark@...omium.org>
---
 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 2719d9c0864b..56c66a43f1a6 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -790,7 +790,7 @@ static int ti_sn_bridge_probe(struct i2c_client *client,
 			      const struct i2c_device_id *id)
 {
 	struct ti_sn_bridge *pdata;
-	int ret;
+	int ret, panel_id;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
 		DRM_ERROR("device doesn't support I2C\n");
@@ -811,7 +811,8 @@ static int ti_sn_bridge_probe(struct i2c_client *client,
 
 	pdata->dev = &client->dev;
 
-	ret = drm_of_find_panel_or_bridge(pdata->dev->of_node, 1, 0,
+	panel_id = drm_of_find_panel_id();
+	ret = drm_of_find_panel_or_bridge(pdata->dev->of_node, 1, panel_id,
 					  &pdata->panel, NULL);
 	if (ret) {
 		DRM_ERROR("could not find any panel node\n");
-- 
2.20.1