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".
Cc: Olof Johansson <olof@xxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/spi/efm32-spi.txt | 13 +++++++------
drivers/spi/spi-efm32.c | 8 +++++++-
2 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
index 130cd17e3680..750e29aff9bc 100644
--- a/Documentation/devicetree/bindings/spi/efm32-spi.txt
+++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt
@@ -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 {
diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index be44a3eeb5e8..6caeb1cac0f3 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -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 {
--
2.0.0
--
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