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From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
To: johannes@sipsolutions.net
Cc: backports@vger.kernel.org, "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Subject: [PATCH 05/18] compat: backport GPIOF_OPEN_DRAIN definition
Date: Wed, 10 Apr 2013 04:35:15 -0700	[thread overview]
Message-ID: <1365593728-5720-6-git-send-email-mcgrof@do-not-panic.com> (raw)
In-Reply-To: <1365593728-5720-1-git-send-email-mcgrof@do-not-panic.com>

From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>

This functionality will just be ignored, later we'll
just port the full gpiolib.

mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains  aca5ce14
v3.4-rc1~65^2~20

commit aca5ce14eb773a75e5d935968b2e390dc5bd29c3
Author: Laxman Dewangan <ldewangan@nvidia.com>
Date:   Fri Feb 17 20:26:21 2012 +0530

    gpio: gpiolib: Support for open drain/collector gpios

    Adding support for the open drain gpio on which client
    can specify the open drain property through GPIO flag
    GPIOF_OPEN_DRAIN at the time of gpio request.
    The open drain pins are normally pulled high and it
    cannot be driven to output with value of 1 and so
    when client request for setting the pin to HIGH, the
    gpio will be set to input direction to make pin in tristate
    and hence PULL-UP on pins will make the state to HIGH.
    The open drain pin can be driven to LOW by setting output
    with value of 0.

    Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
    Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
    Acked-by: Linus Walleij <linus.walleij@linaro.org>
    Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
---
 backport/include/linux/compat-3.4.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/backport/include/linux/compat-3.4.h b/backport/include/linux/compat-3.4.h
index a152d51..528ae09 100644
--- a/backport/include/linux/compat-3.4.h
+++ b/backport/include/linux/compat-3.4.h
@@ -11,6 +11,8 @@
 #include <linux/kconfig.h>
 #endif
 
+#define GPIOF_OPEN_DRAIN       (1 << 2)
+
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
 #if defined(CONFIG_REGMAP)
 #include <linux/regmap.h>
-- 
1.7.10.4


  parent reply	other threads:[~2013-04-10 11:35 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-10 11:35 [PATCH 00/18] backports: pending patches for Luis Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 01/18] backports: enable DRM_NOUVEAU for 3.2 Luis R. Rodriguez
2013-04-10 13:15   ` Johannes Berg
2013-04-10 11:35 ` [PATCH 02/18] compat: backport dev_level_ratelimited() Luis R. Rodriguez
2013-04-10 13:16   ` Johannes Berg
2013-04-10 17:07     ` Luis R. Rodriguez
2013-04-10 17:15       ` Johannes Berg
2013-04-11 14:44         ` taking backports out of compat-*.h (was: [PATCH 02/18] compat: backport dev_level_ratelimited()) Johannes Berg
2013-04-11 14:56           ` taking backports out of compat-*.h Hauke Mehrtens
2013-04-10 11:35 ` [PATCH 03/18] compat: backport __i2c_transfer() Luis R. Rodriguez
2013-04-10 13:20   ` Johannes Berg
2013-04-10 11:35 ` [PATCH 04/18] compat: backport devm_regmap_init() Luis R. Rodriguez
2013-04-10 13:19   ` Johannes Berg
2013-04-10 11:35 ` Luis R. Rodriguez [this message]
2013-04-10 13:18   ` [PATCH 05/18] compat: backport GPIOF_OPEN_DRAIN definition Johannes Berg
2013-04-10 17:10     ` Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 06/18] compat: backport ASYNC_DOMAIN_EXCLUSIVE() Luis R. Rodriguez
2013-04-10 13:22   ` Johannes Berg
2013-04-10 17:13     ` Luis R. Rodriguez
2013-04-10 17:20       ` Johannes Berg
2013-04-10 17:26         ` Luis R. Rodriguez
2013-04-10 18:20           ` Johannes Berg
2013-04-10 19:19             ` Luis R. Rodriguez
2013-04-10 19:27               ` Johannes Berg
2013-04-10 19:32                 ` Luis R. Rodriguez
2013-04-10 19:39                   ` Johannes Berg
2013-04-10 19:40                     ` Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 07/18] compat: backport devres_release() Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 08/18] compat: backport dev_get_regmap() Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 09/18] compat: backport devm_ioremap_resource() Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 10/18] compat: backport module_platform_driver_probe() Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 11/18] compat: add helpers to aid backport of generic DMA changes for v4l Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 12/18] compat: backport dma_get_sgtable() Luis R. Rodriguez
2013-04-10 13:26   ` Johannes Berg
2013-04-10 11:35 ` [PATCH 13/18] backports: add blacklist module support Luis R. Rodriguez
2013-04-10 13:35   ` Johannes Berg
2013-04-10 19:57     ` Luis R. Rodriguez
2013-04-10 20:00       ` Johannes Berg
2013-04-10 11:35 ` [PATCH 14/18] backports: add support for module compression Luis R. Rodriguez
2013-04-10 13:40   ` Johannes Berg
2013-04-10 11:35 ` [PATCH 15/18] backports: add check_depmod to look for module search path Luis R. Rodriguez
2013-04-10 13:43   ` Johannes Berg
2013-04-10 11:35 ` [PATCH 16/18] backports: add udev rules if required for backported firmware_class Luis R. Rodriguez
2013-04-10 13:45   ` Johannes Berg
2013-04-10 13:47   ` Johannes Berg
2013-04-10 20:12     ` Luis R. Rodriguez
2013-04-10 11:35 ` [PATCH 17/18] backports: use depmod -a Luis R. Rodriguez
2013-04-10 13:46   ` Johannes Berg
2013-04-10 11:35 ` [PATCH 18/18] backports: add update-initramfs support Luis R. Rodriguez
2013-04-10 13:48   ` Johannes Berg
2013-04-10 20:12     ` Luis R. Rodriguez

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