redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

spi: efm32: correct namespacing of location property 

Olof Johansson pointed out that usually the company name is picked as
namespace prefix to specific properties. So expect "energymicro,location"
but fall back to the previously introduced name "efm32,location".

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
hifive-unleashed-5.1
Uwe Kleine-König 2014-07-11 10:17:57 +02:00 committed by Mark Brown
parent 7171511eae
commit 10ed7e9847
2 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Documentation/devicetree/bindings/spi/efm32-spi.txt
View File

@ -10,11 +10,12 @@ Required properties:
- cs-gpios: see spi-bus.txt
Recommended properties :
- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to
configure the pinmux for the device, see datasheet for values.
If "efm32,location" property is not provided, keeping what is
already configured in the hardware, so its either the reset
default 0 or whatever the bootloader did.
- energymicro,location: Value to write to the ROUTE register's LOCATION
bitfield to configure the pinmux for the device, see
datasheet for values.
If this property is not provided, keeping what is
already configured in the hardware, so its either the
reset default 0 or whatever the bootloader did.
Example:
@ -26,7 +27,7 @@ spi1: spi@0x4000c400 { /* USART1 */
interrupts = <15 16>;
clocks = <&cmu 20>;
cs-gpios = <&gpio 51 1>; // D3
efm32,location = <1>;
energymicro,location = <1>;
status = "ok";
ks8851@0 {

8
drivers/spi/spi-efm32.c
View File

@ -294,10 +294,16 @@ static void efm32_spi_probe_dt(struct platform_device *pdev,
u32 location;
int ret;
ret = of_property_read_u32(np, "efm32,location", &location);
ret = of_property_read_u32(np, "energymicro,location", &location);
if (ret)
/* fall back to wrongly namespaced property */
ret = of_property_read_u32(np, "efm32,location", &location);
if (ret)
/* fall back to old and (wrongly) generic property "location" */
ret = of_property_read_u32(np, "location", &location);
if (!ret) {
dev_dbg(&pdev->dev, "using location %u\n", location);
} else {