From patchwork Wed Dec 11 18:37:17 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sherman Yin X-Patchwork-Id: 3327981 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 821A6C0D4A for ; Wed, 11 Dec 2013 19:51:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8E8B9207CB for ; Wed, 11 Dec 2013 19:51:41 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 66834207C5 for ; Wed, 11 Dec 2013 19:51:40 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vqp7v-0001n4-OR; Wed, 11 Dec 2013 19:07:21 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vqp6x-0005Sj-CC; Wed, 11 Dec 2013 19:06:19 +0000 Received: from mail-gw1-out.broadcom.com ([216.31.210.62]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vqp6B-0005N4-UD for linux-arm-kernel@lists.infradead.org; Wed, 11 Dec 2013 19:05:34 +0000 X-IronPort-AV: E=Sophos;i="4.93,873,1378882800"; d="scan'208";a="1870495" Received: from irvexchcas08.broadcom.com (HELO IRVEXCHCAS08.corp.ad.broadcom.com) ([10.9.208.57]) by mail-gw1-out.broadcom.com with ESMTP; 11 Dec 2013 11:09:33 -0800 Received: from IRVEXCHSMTP2.corp.ad.broadcom.com (10.9.207.52) by IRVEXCHCAS08.corp.ad.broadcom.com (10.9.208.57) with Microsoft SMTP Server (TLS) id 14.1.438.0; Wed, 11 Dec 2013 11:04:47 -0800 Received: from mail-irva-13.broadcom.com (10.10.10.20) by IRVEXCHSMTP2.corp.ad.broadcom.com (10.9.207.52) with Microsoft SMTP Server id 14.1.438.0; Wed, 11 Dec 2013 11:04:46 -0800 Received: from ltrmn-lnxub75-vm (testboard2-syin.ric.broadcom.com [10.136.4.120]) by mail-irva-13.broadcom.com (Postfix) with ESMTP id DE8E0246AA; Wed, 11 Dec 2013 11:04:45 -0800 (PST) Received: by ltrmn-lnxub75-vm (Postfix, from userid 35077) id A1CC360E9C; Wed, 11 Dec 2013 11:04:18 -0800 (PST) From: Sherman Yin To: Rob Herring , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Pawel Moll , Mark Rutland , Stephen Warren , Ian Campbell , Rob Landley , Christian Daudt , Russell King , Linus Walleij , Grant Likely , Matt Porter Subject: [PATCH v3 2/6] pinctrl: Adds slew-rate, input-enable/disable Date: Wed, 11 Dec 2013 10:37:17 -0800 Message-ID: <1386787041-6035-3-git-send-email-syin@broadcom.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1386787041-6035-1-git-send-email-syin@broadcom.com> References: <1381174108-25168-1-git-send-email-syin@broadcom.com> <1386787041-6035-1-git-send-email-syin@broadcom.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131211_140532_294551_79B1CC3C X-CRM114-Status: GOOD ( 12.23 ) X-Spam-Score: -2.1 (--) Cc: devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Sherman Yin , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This commit adds slew-rate and input-enable/disable support for pinconf -generic. Signed-off-by: Sherman Yin --- v3: added to patchset .../bindings/pinctrl/pinctrl-bindings.txt | 3 +++ drivers/pinctrl/pinconf-generic.c | 4 ++++ include/linux/pinctrl/pinconf-generic.h | 4 ++++ 3 files changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt index 1958ca9..4414163 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt @@ -151,6 +151,8 @@ drive-push-pull - drive actively high and low drive-open-drain - drive with open drain drive-open-source - drive with open source drive-strength - sink or source at most X mA +input-enable - enable input on pin (no effect on output) +input-disable - disable input on pin (no effect on output) input-schmitt-enable - enable schmitt-trigger mode input-schmitt-disable - disable schmitt-trigger mode input-debounce - debounce mode with debound time X @@ -158,6 +160,7 @@ low-power-enable - enable low power mode low-power-disable - disable low power mode output-low - set the pin to output mode with low level output-high - set the pin to output mode with high level +slew-rate - set the slew rate Some of the generic properties take arguments. For those that do, the arguments are described below. diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c index 55a0ebe..3d9a999 100644 --- a/drivers/pinctrl/pinconf-generic.c +++ b/drivers/pinctrl/pinconf-generic.c @@ -48,6 +48,7 @@ static struct pin_config_item conf_items[] = { PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL), PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL), PCONFDUMP(PIN_CONFIG_DRIVE_STRENGTH, "output drive strength", "mA"), + PCONFDUMP(PIN_CONFIG_INPUT_ENABLE, "input enabled", NULL), PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT_ENABLE, "input schmitt enabled", NULL), PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT, "input schmitt trigger", NULL), PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "usec"), @@ -160,6 +161,8 @@ static struct pinconf_generic_dt_params dt_params[] = { { "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 }, { "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 }, { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, + { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, + { "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 }, { "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 }, { "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 }, { "input-debounce", PIN_CONFIG_INPUT_DEBOUNCE, 0 }, @@ -167,6 +170,7 @@ static struct pinconf_generic_dt_params dt_params[] = { { "low-power-disable", PIN_CONFIG_LOW_POWER_MODE, 0 }, { "output-low", PIN_CONFIG_OUTPUT, 0, }, { "output-high", PIN_CONFIG_OUTPUT, 1, }, + { "slew-rate", PIN_CONFIG_SLEW_RATE, 0}, }; /** diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index fb90ef5..0db67bf 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -61,6 +61,9 @@ * argument is ignored. * @PIN_CONFIG_DRIVE_STRENGTH: the pin will sink or source at most the current * passed as argument. The argument is in mA. + * @PIN_CONFIG_INPUT_ENABLE: enable the pin's input. Note that this does not + * affect the pin's ability to drive output. 1 enables input, 0 disables + * input. * @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin. * If the argument != 0, schmitt-trigger mode is enabled. If it's 0, * schmitt-trigger mode is disabled. @@ -99,6 +102,7 @@ enum pin_config_param { PIN_CONFIG_DRIVE_OPEN_DRAIN, PIN_CONFIG_DRIVE_OPEN_SOURCE, PIN_CONFIG_DRIVE_STRENGTH, + PIN_CONFIG_INPUT_ENABLE, PIN_CONFIG_INPUT_SCHMITT_ENABLE, PIN_CONFIG_INPUT_SCHMITT, PIN_CONFIG_INPUT_DEBOUNCE,