From patchwork Tue Jan 8 21:43:12 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 1948451 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id AF5783FC5A for ; Tue, 8 Jan 2013 21:47:06 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TsgxI-0007PK-Qi; Tue, 08 Jan 2013 21:43:32 +0000 Received: from mail.free-electrons.com ([94.23.32.191]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TsgxD-0007Op-KQ for linux-arm-kernel@lists.infradead.org; Tue, 08 Jan 2013 21:43:28 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id 4DFF017B; Tue, 8 Jan 2013 22:43:27 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=3.3.2 Received: from localhost (gar31-2-82-226-185-134.fbx.proxad.net [82.226.185.134]) by mail.free-electrons.com (Postfix) with ESMTPSA id C1FE3DA; Tue, 8 Jan 2013 22:43:26 +0100 (CET) From: Maxime Ripard To: Arnd Bergmann , Olof Johansson Subject: [PATCH 1/7] pinctrl: pinconf-generic: add drive strength parameter Date: Tue, 8 Jan 2013 22:43:12 +0100 Message-Id: <1357681398-23956-2-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1357681398-23956-1-git-send-email-maxime.ripard@free-electrons.com> References: <1357681398-23956-1-git-send-email-maxime.ripard@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130108_164327_826086_14C66808 X-CRM114-Status: GOOD ( 10.93 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Alejandro Mery , Linus Walleij , Stefan Roese , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Some pin configurations IP allows to set the current output to the pin. This patch adds such a parameter to the pinconf-generic mechanism. This parameter takes as argument the drive strength in mA. Signed-off-by: Maxime Ripard --- include/linux/pinctrl/pinconf-generic.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 47a1bdd..c533789 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -46,6 +46,8 @@ * @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source * (open emitter). Sending this config will enabale open drain mode, the * argument is ignored. + * @PIN_CONFIG_DRIVE_STRENGTH: the pin will output the current passed as + * argument. The argument is in mA. * @PIN_CONFIG_INPUT_SCHMITT_DISABLE: disable schmitt-trigger mode on the pin. * @PIN_CONFIG_INPUT_SCHMITT: this will configure an input pin to run in * schmitt-trigger mode. If the schmitt-trigger has adjustable hysteresis, @@ -74,6 +76,7 @@ enum pin_config_param { PIN_CONFIG_DRIVE_PUSH_PULL, PIN_CONFIG_DRIVE_OPEN_DRAIN, PIN_CONFIG_DRIVE_OPEN_SOURCE, + PIN_CONFIG_DRIVE_STRENGTH, PIN_CONFIG_INPUT_SCHMITT_DISABLE, PIN_CONFIG_INPUT_SCHMITT, PIN_CONFIG_INPUT_DEBOUNCE,