openwrt/target/linux/generic/pending-4.19/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch

From d9c8bc8c1408f3e8529db6e4e04017b4c579c342 Mon Sep 17 00:00:00 2001
From: Pawel Dembicki <paweldembicki@gmail.com>
Date: Sun, 18 Feb 2018 17:08:04 +0100
Subject: [PATCH] w1: gpio: fix problem with platfom data in w1-gpio

In devices, where fdt is used, is impossible to apply platform data
without proper fdt node.

This patch allow to use platform data in devices with fdt.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
---
 drivers/w1/masters/w1-gpio.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -79,7 +79,7 @@ static int w1_gpio_probe(struct platform
 	enum gpiod_flags gflags = GPIOD_OUT_LOW_OPEN_DRAIN;
 	int err;
 
-	if (of_have_populated_dt()) {
+	if (of_have_populated_dt() && !dev_get_platdata(&pdev->dev)) {
 		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 		if (!pdata)
 			return -ENOMEM;