linux-kernel - [PATCH 5.2 145/413] media: mt9m111: fix fw-node refactoring

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Date:   Wed, 24 Jul 2019 21:17:16 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Robert Jarzmik <robert.jarzmik@...e.fr>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 145/413] media: mt9m111: fix fw-node refactoring

[ Upstream commit 8d4e29a51a954b43e06d916772fa4f50b7e5bbd6 ]

In the patch refactoring the fw-node, the mt9m111 was broken for all
platform_data based platforms, which were the first aim of this
driver. Only the devicetree platform are still functional, probably
because the testing was done on these.

The result is that -EINVAL is systematically return for such platforms,
what this patch fixes.

[Sakari Ailus: Rework this to resolve a merge conflict and use dev_fwnode]

Fixes: 98480d65c48c ("media: mt9m111: allow to setup pixclk polarity")
Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/i2c/mt9m111.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c
index 362c3b93636e..5a642b5ad076 100644
--- a/drivers/media/i2c/mt9m111.c
+++ b/drivers/media/i2c/mt9m111.c
@@ -1245,9 +1245,11 @@ static int mt9m111_probe(struct i2c_client *client,
 	if (!mt9m111)
 		return -ENOMEM;
 
-	ret = mt9m111_probe_fw(client, mt9m111);
-	if (ret)
-		return ret;
+	if (dev_fwnode(&client->dev)) {
+		ret = mt9m111_probe_fw(client, mt9m111);
+		if (ret)
+			return ret;
+	}
 
 	mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
 	if (IS_ERR(mt9m111->clk))
-- 
2.20.1