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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>
(cherry picked from commit aa5838adb7)
openwrt-18.06
Pawel Dembicki 2018-02-15 22:21:25 +01:00 committed by John Crispin
parent 25cb85abe7
commit eb06fa6cf7
2 changed files with 86 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch Normal file
View File

@ -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

43
target/linux/generic/pending-4.9/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch Normal file
View File

@ -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