This is a note to let you know that I've just added the patch titled
pinctrl: vt8500: Change devicetree data parsing
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pinctrl-vt8500-change-devicetree-data-parsing.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f17248ed868767567298e1cdf06faf8159a81f7c Mon Sep 17 00:00:00 2001
From: Tony Prisk <linux@xxxxxxxxxxxxxxx>
Date: Thu, 23 Jan 2014 21:57:33 +1300
Subject: pinctrl: vt8500: Change devicetree data parsing
From: Tony Prisk <linux@xxxxxxxxxxxxxxx>
commit f17248ed868767567298e1cdf06faf8159a81f7c upstream.
Due to an assumption in the VT8500 pinctrl driver, the value passed
from devicetree for 'wm,pull' was not explicitly translated before
being passed to pinconf.
Since v3.10, changes to 'enum pin_config_param', PIN_CONFIG_BIAS_PULL_(UP/DOWN)
no longer map 1-to-1 with the expected values in devicetree.
This patch adds a small translation between the devicetree values (0..2)
and the enum pin_config_param equivalent values.
Signed-off-by: Tony Prisk <linux@xxxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/vt8500/pinctrl-wmt.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
--- a/drivers/pinctrl/vt8500/pinctrl-wmt.c
+++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c
@@ -276,7 +276,20 @@ static int wmt_pctl_dt_node_to_map_pull(
if (!configs)
return -ENOMEM;
- configs[0] = pull;
+ switch (pull) {
+ case 0:
+ configs[0] = PIN_CONFIG_BIAS_DISABLE;
+ break;
+ case 1:
+ configs[0] = PIN_CONFIG_BIAS_PULL_DOWN;
+ break;
+ case 2:
+ configs[0] = PIN_CONFIG_BIAS_PULL_UP;
+ break;
+ default:
+ configs[0] = PIN_CONFIG_BIAS_DISABLE;
+ dev_err(data->dev, "invalid pull state %d - disabling\n", pull);
+ }
map->type = PIN_MAP_TYPE_CONFIGS_PIN;
map->data.configs.group_or_pin = data->groups[group];
Patches currently in stable-queue which might be from linux@xxxxxxxxxxxxxxx are
queue-3.12/pinctrl-vt8500-change-devicetree-data-parsing.patch
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