RepoMirrors/openwrt
1
0
Fork 0
mirror of git://git.openwrt.org/openwrt/openwrt.git synced 2024-12-29 01:52:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

bcm63xx: 5.4: add removed helper syscon_regmap_lookup_by_pdevname

Browse Source 
The helper syscon_regmap_lookup_by_pdevname has been removed in kernel patch
29d14b668d2f ("mfd: Remove unused helper syscon_regmap_lookup_by_pdevname")
due to lack of users.

However, we use this function in our local pinctrl drivers for BCM6358 and
BCM6368. Thus, we have to add it locally.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit is contained in:
Adrian Schmutzler 2020-04-03 20:21:20 +02:00
parent 43d3ef91f1
commit 8a2118e1b4
1 changed files with 64 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
target/linux/bcm63xx/patches-5.4/144-add-removed-syscon_regmap_lookup_by_pdevname.patch Normal file
View File

@ -0,0 +1,64 @@
From: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Date: Fri, 03 Apr 2020 19:50:03 +0200
Subject: add removed helper syscon_regmap_lookup_by_pdevname
The helper syscon_regmap_lookup_by_pdevname has been removed in 29d14b668d2f
("mfd: Remove unused helper syscon_regmap_lookup_by_pdevname") due to lack
of users.
Thus, we have to maintain it locally.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -204,6 +204,27 @@ struct regmap *syscon_regmap_lookup_by_c
}
EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_compatible);
+static int syscon_match_pdevname(struct device *dev, void *data)
+{
+ return !strcmp(dev_name(dev), (const char *)data);
+}
+
+struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
+{
+ struct device *dev;
+ struct syscon *syscon;
+
+ dev = driver_find_device(&syscon_driver.driver, NULL, (void *)s,
+ syscon_match_pdevname);
+ if (!dev)
+ return ERR_PTR(-EPROBE_DEFER);
+
+ syscon = dev_get_drvdata(dev);
+
+ return syscon->regmap;
+}
+EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_pdevname);
+
struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,
const char *property)
{
--- a/include/linux/mfd/syscon.h
+++ b/include/linux/mfd/syscon.h
@@ -20,6 +20,7 @@ struct device_node;
extern struct regmap *device_node_to_regmap(struct device_node *np);
extern struct regmap *syscon_node_to_regmap(struct device_node *np);
extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
+extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
extern struct regmap *syscon_regmap_lookup_by_phandle(
struct device_node *np,
const char *property);
@@ -38,6 +39,11 @@ static inline struct regmap *syscon_regm
{
return ERR_PTR(-ENOTSUPP);
}
+
+static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
+{
+ return ERR_PTR(-ENOTSUPP);
+}
static inline struct regmap *syscon_regmap_lookup_by_phandle(
struct device_node *np,