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authorPawel Dembicki <paweldembicki@gmail.com>2018-02-15 22:21:25 +0100
committerJohn Crispin <john@phrozen.org>2018-07-30 10:43:37 +0200
commitaa5838adb7be733c427e63bb6cc702f9a533292d (patch)
tree529b4f90b58599f7371c24a066f3fa64d5c83fc1 /target/linux/generic/pending-4.14
parent3fd4db76b06bfcf7c69a6bef62f073fb537ab977 (diff)
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kernel: generic: fix problem with w1-gpio-custom
In boards with fdt is impossible to use kmod-w1-gpio-custom. w1-gpio-custom create platform structure for w1-gpio module, but if board use fdt, data is ignored in w1-gpio probe. This workaround fix the problem. Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Diffstat (limited to 'target/linux/generic/pending-4.14')
-rw-r--r--target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch43
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch b/target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch
new file mode 100644
index 0000000000..5ce2bf87b9
--- /dev/null
+++ b/target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch
@@ -0,0 +1,43 @@
+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(-)
+
+diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
+index a90728ceec5a..7b80762941af 100644
+--- a/drivers/w1/masters/w1-gpio.c
++++ b/drivers/w1/masters/w1-gpio.c
+@@ -112,17 +112,16 @@ static int w1_gpio_probe_dt(struct platform_device *pdev)
+ static int w1_gpio_probe(struct platform_device *pdev)
+ {
+ struct w1_bus_master *master;
+- struct w1_gpio_platform_data *pdata;
++ struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ int err;
+
+- if (of_have_populated_dt()) {
++ if (of_have_populated_dt() && !pdata) {
+ err = w1_gpio_probe_dt(pdev);
+ if (err < 0)
+ return err;
++ pdata = dev_get_platdata(&pdev->dev);
+ }
+
+- pdata = dev_get_platdata(&pdev->dev);
+-
+ if (!pdata) {
+ dev_err(&pdev->dev, "No configuration data\n");
+ return -ENXIO;
+--
+2.14.1
+