Thread (13 messages) flat view 13 messages, 6 authors, 2009-07-03

Re: [PATCH -mm v3][POWERPC] mpc8xxx : allow SPI without cs.

From: Anton Vorontsov <hidden>
Date: 2009-06-19 13:46:43
Also in: linux-spi

On Fri, Jun 19, 2009 at 09:26:08AM +0200, Rini van Zetten wrote:
This patch adds the possibility to have a spi device without a cs.

For example, the dts file should look something like this:

spi-controller {
       gpios = <&pio1 1 0      /* cs0 */
                0              /* cs1, no GPIO */
                &pio2 2 0>;    /* cs2 */

Signed-off-by: Rini van Zetten <redacted>
---
Changes :
	patch against 2.6.30-rc8-mm1
	style updates
	compiler warning fix
comment :
	This feature is needed on our home made board to program an onboard fpga.
	The fpga needs some special pin toggling to put it in programming mode.
	That's why we want to skip the usual gpio cs and do the pin toggling
	in our driver
Cool, thanks for the explanation. You may want to put it
into the commit message.

[...]
+			ret = gpio_direction_output(pinfo->gpios[i],
+					pinfo->alow_flags[i]);
+			if (ret) {
+				dev_err(dev, "can't set output direction for"
+							"gpio #%d: %d\n",
+							i, ret);
There is no space between 'for' and 'gpio' words.
(also the whole dev_err() may fit into two lines, no need to
split it into three lines).

Otherwise looks great. On the next resend feel free to add my
Acked-by: Anton Vorontsov <redacted>

Thanks,

-- 
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
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