|
|
@@ -28,8 +28,10 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
include/linux/w1-gpio.h | 1 +
|
|
|
5 files changed, 99 insertions(+), 9 deletions(-)
|
|
|
|
|
|
---- a/drivers/w1/masters/w1-gpio.c
|
|
|
-+++ b/drivers/w1/masters/w1-gpio.c
|
|
|
+Index: linux-4.9.111/drivers/w1/masters/w1-gpio.c
|
|
|
+===================================================================
|
|
|
+--- linux-4.9.111.orig/drivers/w1/masters/w1-gpio.c
|
|
|
++++ linux-4.9.111/drivers/w1/masters/w1-gpio.c
|
|
|
@@ -23,6 +23,19 @@
|
|
|
#include "../w1.h"
|
|
|
#include "../w1_int.h"
|
|
|
@@ -94,28 +96,7 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
|
|
|
pdev->dev.platform_data = pdata;
|
|
|
|
|
|
-@@ -113,13 +140,15 @@ static int w1_gpio_probe_dt(struct platf
|
|
|
- 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 = pdev->dev.platform_data;
|
|
|
- int err;
|
|
|
-
|
|
|
-- if (of_have_populated_dt()) {
|
|
|
-- err = w1_gpio_probe_dt(pdev);
|
|
|
-- if (err < 0)
|
|
|
-- return err;
|
|
|
-+ if(pdata == NULL) {
|
|
|
-+ if (of_have_populated_dt()) {
|
|
|
-+ err = w1_gpio_probe_dt(pdev);
|
|
|
-+ if (err < 0)
|
|
|
-+ return err;
|
|
|
-+ }
|
|
|
- }
|
|
|
-
|
|
|
- pdata = dev_get_platdata(&pdev->dev);
|
|
|
-@@ -136,6 +165,22 @@ static int w1_gpio_probe(struct platform
|
|
|
+@@ -135,6 +162,22 @@ static int w1_gpio_probe(struct platform
|
|
|
return -ENOMEM;
|
|
|
}
|
|
|
|
|
|
@@ -138,7 +119,7 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
err = devm_gpio_request(&pdev->dev, pdata->pin, "w1");
|
|
|
if (err) {
|
|
|
dev_err(&pdev->dev, "gpio_request (pin) failed\n");
|
|
|
-@@ -165,6 +210,14 @@ static int w1_gpio_probe(struct platform
|
|
|
+@@ -164,6 +207,14 @@ static int w1_gpio_probe(struct platform
|
|
|
master->set_pullup = w1_gpio_set_pullup;
|
|
|
}
|
|
|
|
|
|
@@ -153,7 +134,7 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
err = w1_add_master_device(master);
|
|
|
if (err) {
|
|
|
dev_err(&pdev->dev, "w1_add_master device failed\n");
|
|
|
-@@ -195,6 +248,10 @@ static int w1_gpio_remove(struct platfor
|
|
|
+@@ -194,6 +245,10 @@ static int w1_gpio_remove(struct platfor
|
|
|
|
|
|
w1_remove_master_device(master);
|
|
|
|
|
|
@@ -164,8 +145,10 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
---- a/drivers/w1/w1.h
|
|
|
-+++ b/drivers/w1/w1.h
|
|
|
+Index: linux-4.9.111/drivers/w1/w1.h
|
|
|
+===================================================================
|
|
|
+--- linux-4.9.111.orig/drivers/w1/w1.h
|
|
|
++++ linux-4.9.111/drivers/w1/w1.h
|
|
|
@@ -173,6 +173,12 @@ struct w1_bus_master
|
|
|
|
|
|
u8 (*set_pullup)(void *, int);
|
|
|
@@ -179,8 +162,10 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
void (*search)(void *, struct w1_master *,
|
|
|
u8, w1_slave_found_callback);
|
|
|
};
|
|
|
---- a/drivers/w1/w1_int.c
|
|
|
-+++ b/drivers/w1/w1_int.c
|
|
|
+Index: linux-4.9.111/drivers/w1/w1_int.c
|
|
|
+===================================================================
|
|
|
+--- linux-4.9.111.orig/drivers/w1/w1_int.c
|
|
|
++++ linux-4.9.111/drivers/w1/w1_int.c
|
|
|
@@ -122,6 +122,20 @@ int w1_add_master_device(struct w1_bus_m
|
|
|
return(-EINVAL);
|
|
|
}
|
|
|
@@ -202,8 +187,10 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
/* Lock until the device is added (or not) to w1_masters. */
|
|
|
mutex_lock(&w1_mlock);
|
|
|
/* Search for the first available id (starting at 1). */
|
|
|
---- a/drivers/w1/w1_io.c
|
|
|
-+++ b/drivers/w1/w1_io.c
|
|
|
+Index: linux-4.9.111/drivers/w1/w1_io.c
|
|
|
+===================================================================
|
|
|
+--- linux-4.9.111.orig/drivers/w1/w1_io.c
|
|
|
++++ linux-4.9.111/drivers/w1/w1_io.c
|
|
|
@@ -134,10 +134,22 @@ static void w1_pre_write(struct w1_maste
|
|
|
static void w1_post_write(struct w1_master *dev)
|
|
|
{
|
|
|
@@ -230,8 +217,10 @@ w1-gpio: Sort out the pullup/parasitic power tangle
|
|
|
dev->pullup_duration = 0;
|
|
|
}
|
|
|
}
|
|
|
---- a/include/linux/w1-gpio.h
|
|
|
-+++ b/include/linux/w1-gpio.h
|
|
|
+Index: linux-4.9.111/include/linux/w1-gpio.h
|
|
|
+===================================================================
|
|
|
+--- linux-4.9.111.orig/include/linux/w1-gpio.h
|
|
|
++++ linux-4.9.111/include/linux/w1-gpio.h
|
|
|
@@ -18,6 +18,7 @@
|
|
|
struct w1_gpio_platform_data {
|
|
|
unsigned int pin;
|