delta/barebox.git/include/mfd/syscon.h, branch master

mfd: syscon: Remove unused helper syscon_base_lookup_by_pdevname

2023-05-09T07:23:58+00:00

Nobody uses the exported helper syscon_base_lookup_by_pdevname,
to lookup a syscon by device name. Let us remove it.

Signed-off-by: Alexander Shiyan 
Link: https://lore.barebox.org/20230505061245.463528-1-eagle.alexander923@gmail.com
Signed-off-by: Sascha Hauer

mfd: syscon: implement device_node_to_regmap

2020-04-15T09:20:56+00:00

Extend our syscon API with a device_node_to_regmap function that has the
same semantics as upstream:

 __________________________________________________________________________
| Linux commit 39233b7c611248c0d05209b4854bc63e26485655
| CommitDate: Thu Aug 8 15:30:07 2019 -0700
|
| mfd/syscon: Add device_node_to_regmap()
|
| device_node_to_regmap() is exactly like syscon_node_to_regmap(), but it
| does not check that the node is compatible with "syscon", and won't
| attach the first clock it finds to the regmap.
|
| The rationale behind this, is that one device node with a standard
| compatible string "foo,bar" can be covered by multiple drivers sharing a
| regmap, or by a single driver doing all the job without a regmap, but
| these are implementation details which shouldn't reflect on the
| devicetree.
|
| Signed-off-by: Paul Cercueil 
| Acked-by: Arnd Bergmann 
| Signed-off-by: Paul Burton 
|__________________________________________________________________________

Signed-off-by: Ahmad Fatoum 
Signed-off-by: Sascha Hauer

mfd: syscon: add syscon_regmap_lookup_by_phandle()

2019-07-02T06:15:32+00:00

This function is handy when syscon is passed as phandle to device_node
property.

Signed-off-by: Marcin Niestroj 
Signed-off-by: Sascha Hauer

regmap: Implement syscon_regmap_lookup_by_compatible()

2019-02-25T08:46:10+00:00

Implement syscon_regmap_lookup_by_compatible() to simplify porting kernel code.

Signed-off-by: Ahmad Fatoum 
Signed-off-by: Sam Ravnborg 
Tested-by: Ladislav Michl 
Signed-off-by: Sascha Hauer

regmap: Implement syscon_node_to_regmap()

2017-03-09T07:13:38+00:00

Implement syscon_node_to_regmap() to simplify porting kernel code.

Signed-off-by: Andrey Smirnov 
Signed-off-by: Sascha Hauer

syscon: Do not return NULL when driver is not selected

2016-05-18T05:47:51+00:00

Both syscon_base_lookup_by_pdevname() and
syscon_base_lookup_by_phandle(), when implemented, do not return NULL,
so none of the code using those function is written to check for that.

Change returns to ERR_PTR(-ENOSYS), to avoid having that problem.

Signed-off-by: Andrey Smirnov 
Signed-off-by: Sascha Hauer

syscon: fix prototype compile error

2014-05-16T06:04:22+00:00

gcc 4.8.3 throws the following error

include/mfd/syscon.h: In function 'syscon_base_lookup_by_pdevname':
include/mfd/syscon.h:22:1: error: parameter name omitted
 static inline void __iomem *syscon_base_lookup_by_pdevname(const char *)

Fix it by adding the name to the function prototype.

Signed-off-by: Steffen Trumtrar 
Signed-off-by: Sascha Hauer

mfd: syscon: Introduce syscon_base_lookup_by_phandle() function

2014-01-24T22:10:04+00:00

Signed-off-by: Alexander Shiyan 
Signed-off-by: Sascha Hauer

Add system controller register driver (SYSCON)

2013-03-11T21:17:43+00:00

This patch adds support for system controller register driver (SYSCON).
Code taken from Linux Kernel and adapted for using in barebox.

Signed-off-by: Alexander Shiyan 
Signed-off-by: Sascha Hauer