[PATCH v2] spi: efm32: properly namespace location property
From: Uwe Kleine-König <hidden>
Date: 2014-03-14 20:34:22
Also in:
linux-spi
Subsystem:
open firmware and flattened device tree bindings, spi subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Mark Brown, Linus Torvalds
While reviewing an i2c driver for efm32 that needs a similar property Wolfram Sang pointed out that "location" is a too generic name for something that is efm32 specific. So add an appropriate namespace and fall back to the generic name in case of failure. Signed-off-by: Uwe Kleine-König <redacted> --- Changes since (implicit) v1, sent with Message-Id: 1394812888-22697-1-git-send-email-u.kleine-koenig@pengutronix.de: - rebase on top of Mark's topic/efm32 branch - adapt dt binding doc accordingly Documentation/devicetree/bindings/spi/efm32-spi.txt | 4 ++-- drivers/spi/spi-efm32.c | 5 ++++- 2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
index a590ca51be75..25c02ba530da 100644
--- a/Documentation/devicetree/bindings/spi/efm32-spi.txt
+++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt@@ -8,7 +8,7 @@ Required properties: - interrupts: pair specifying rx and tx irq - clocks: phandle to the spi clock - cs-gpios: see spi-bus.txt -- location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. +- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. Example:
@@ -20,7 +20,7 @@ spi1: spi@0x4000c400 { /* USART1 */ interrupts = <15 16>; clocks = <&cmu 20>; cs-gpios = <&gpio 51 1>; // D3 - location = <1>; + efm32,location = <1>; status = "ok"; ks8851@0 {
diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index 0512fedf1f13..fdb6fce0530b 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c@@ -294,7 +294,10 @@ static void efm32_spi_probe_dt(struct platform_device *pdev, u32 location; int ret; - ret = of_property_read_u32(np, "location", &location); + 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 {
--
1.9.0
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