On 18:17 Mon 13 Feb     , Karol Lewandowski wrote:

On 09.02.2012 03:25, Jean-Christophe PLAGNIOL-VILLARD wrote:

Hi!

quoted

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>
Cc: Nicolas Ferre <redacted>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
---
v2:

	use devm
	update DT bindings to i2c-gpio and sda-open-drain...
	update against "of: introduce helper to manage boolean"

Best Regards,
J.
 .../devicetree/bindings/gpio/gpio_i2c.txt          |   32 +++++++
 drivers/i2c/busses/i2c-gpio.c                      |   95 +++++++++++++++----
 2 files changed, 107 insertions(+), 20 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio_i2c.txt

diff --git a/Documentation/devicetree/bindings/gpio/gpio_i2c.txt b/Documentation/devicetree/bindings/gpio/gpio_i2c.txt
new file mode 100644
index 0000000..9710ed2
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio_i2c.txt

@@ -0,0 +1,32 @@
+Device-Tree bindings for i2c gpio driver
+
+Required properties:
+	- compatible = "i2c-gpio";
+	- gpios: sda and scl gpio
+
+
+Optional properties:
+	- i2c-gpio,sda-open-drain: sda as open drain
+	- i2c-gpio,scl-open-drain: scl as open drain
+	- i2c-gpio,scl-output-only: scl as output only

quoted

+	- udelay: delay between GPIO operations (may depend on each platform)
+	- timeout: timeout to get data (ms)

If these are really needed then I would prefer to have these fully
qualified (with unit type "-ms/-millisecs" appended).

Regulator framework, with its "-microvolt/-microamp", serve here as
prime example of being quite descriptive (one doesn't neet to look up
the docs). Please see:

  http://permalink.gmane.org/gmane.linux.ports.arm.omap/67637

timeout are usualy in ms I don't really see the need of -ms or so

Best Regards,
J.