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From: haojian.zhuang@linaro.org (Haojian Zhuang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 09/12] pinctrl: generic: add auto pull config parameter
Date: Tue, 12 Feb 2013 01:10:56 +0800	[thread overview]
Message-ID: <1360602659-4774-10-git-send-email-haojian.zhuang@linaro.org> (raw)
In-Reply-To: <1360602659-4774-1-git-send-email-haojian.zhuang@linaro.org>

There's only one bit to control pin bias as enabled or disabled for some
pins in OMAP SoC. So append PIN_CONFIG_BIAS_AUTO_PULL for this case.
User shouldn't switch pin state between AUTO_PULL and PULL_UP/PULL_DOWN,
since they're similiar concepts.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 drivers/pinctrl/pinconf-generic.c       |    1 +
 include/linux/pinctrl/pinconf-generic.h |    3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index ef24230..4a67848 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -37,6 +37,7 @@ struct pin_config_item {
 struct pin_config_item conf_items[] = {
 	PCONFDUMP(PIN_CONFIG_BIAS_DISABLE, "input bias disabled", NULL),
 	PCONFDUMP(PIN_CONFIG_BIAS_HIGH_IMPEDANCE, "input bias high impedance", NULL),
+	PCONFDUMP(PIN_CONFIG_BIAS_AUTO_PULL, "input bias auto pull", NULL),
 	PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL),
 	PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", NULL),
 	PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL),
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index 3e7909a..f2daff4 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -29,6 +29,8 @@
  *	if for example some other pin is going to drive the signal connected
  *	to it for a while. Pins used for input are usually always high
  *	impedance.
+ * @PIN_CONFIG_BIAS_AUTO_PULL: the pin will be pulled without specifying
+ *      pull-up or pull-down.
  * @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high
  *	impedance to VDD). If the argument is != 0 pull-up is enabled,
  *	if it is 0, pull-up is disabled.
@@ -76,6 +78,7 @@
 enum pin_config_param {
 	PIN_CONFIG_BIAS_DISABLE,
 	PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
+	PIN_CONFIG_BIAS_AUTO_PULL,
 	PIN_CONFIG_BIAS_PULL_UP,
 	PIN_CONFIG_BIAS_PULL_DOWN,
 	PIN_CONFIG_DRIVE_PUSH_PULL,
-- 
1.7.10.4

  parent reply	other threads:[~2013-02-11 17:10 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-11 17:10 [PATCH v8 00/12] bind pinconf with pinctrl single Haojian Zhuang
2013-02-11 17:10 ` [PATCH v8 01/12] gpio: add gpio offset in gpio range cells property Haojian Zhuang
2013-02-13 13:33   ` Linus Walleij
2013-02-11 17:10 ` [PATCH v8 02/12] gpio: fix wrong checking condition for gpio range Haojian Zhuang
2013-02-14 12:15   ` Linus Walleij
2013-02-11 17:10 ` [PATCH v8 03/12] gpio: pl061: allocate irq dynamically Haojian Zhuang
2013-02-14 14:04   ` Linus Walleij
2013-02-14 17:10     ` Haojian Zhuang
2013-02-11 17:10 ` [PATCH v8 04/12] pinctrl: verify whether gpio chip overlapps range Haojian Zhuang
2013-02-14 15:23   ` Linus Walleij
2013-02-14 17:01     ` Haojian Zhuang
2013-02-15  9:06       ` Linus Walleij
2013-02-17  9:42         ` Haojian Zhuang
2013-02-11 17:10 ` [PATCH v8 05/12] gpio: pl061: bind pinctrl by gpio request Haojian Zhuang
2013-02-14 15:29   ` Linus Walleij
2013-02-14 17:06     ` Haojian Zhuang
2013-02-11 17:10 ` [PATCH v8 06/12] pinctrl: single: create new gpio function range Haojian Zhuang
2013-02-13 18:39   ` Tony Lindgren
2013-02-17 10:00     ` Haojian Zhuang
2013-02-14 15:24   ` Linus Walleij
2013-02-14 16:25     ` Haojian Zhuang
2013-02-11 17:10 ` [PATCH v8 07/12] pinctrl: generic: dump pin configuration Haojian Zhuang
2013-02-11 17:10 ` [PATCH v8 08/12] pinctrl: single: set function mask as optional Haojian Zhuang
2013-02-13 18:40   ` Tony Lindgren
2013-02-11 17:10 ` Haojian Zhuang [this message]
2013-02-13 23:40   ` [PATCH v8 09/12] pinctrl: generic: add auto pull config parameter Tony Lindgren
2013-02-15  8:54   ` Linus Walleij
2013-02-15 16:37     ` Tony Lindgren
2013-02-15 20:55       ` Linus Walleij
2013-02-15 21:06         ` Tony Lindgren
2013-02-11 17:10 ` [PATCH v8 10/12] pinctrl: generic: rename input schmitt disable Haojian Zhuang
2013-02-13 23:41   ` Tony Lindgren
2013-02-11 17:10 ` [PATCH v8 11/12] pinctrl: single: support generic pinconf Haojian Zhuang
2013-02-13 23:50   ` Tony Lindgren
2013-02-11 17:10 ` [PATCH v8 12/12] document: devicetree: bind pinconf with pin single Haojian Zhuang
2013-02-13 23:51   ` Tony Lindgren
2013-02-15  9:11 ` [PATCH v8 00/12] bind pinconf with pinctrl single Linus Walleij

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