From patchwork Mon Aug 16 08:55:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 497815 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C488C4320A for ; Mon, 16 Aug 2021 08:57:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5FB1F61B44 for ; Mon, 16 Aug 2021 08:57:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235199AbhHPI6S (ORCPT ); Mon, 16 Aug 2021 04:58:18 -0400 Received: from esa.microchip.iphmx.com ([68.232.154.123]:48673 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234837AbhHPI6R (ORCPT ); Mon, 16 Aug 2021 04:58:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1629104266; x=1660640266; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hUNGvSAHMAe2Et6tQj52rv5zSHPnoXZNUtoreKoOsu4=; b=a2SIomSxyHg+D0kg5PF+kdS0BW5M5a1lozGO9MKKeBbFePcU2F6zci5z 7/lyS8BPXz+11zwHTs28Ig3hBDWTTd+lsmezWZgelO5612/hVbuYEQaQM pCRiUNh4SiWpV00a3c4YdApPr9L2fAHOi5gZOl0P10M/fdnkyq3jvu2LZ Zq9UgFvl+7Ld2FeHThw8wqkpCMcRxo6qyjlSucNdB6tkYs0V2e+IyuaxM goGT7LaZG/s7cRl+xvWYMvj95PXNn2GCmo5cpS8VT+qKxSwxb+Ky4/vsc 2X+ANHEHsQ+RXNf+CH2U9Hg6SVkOx9BOGbDfXs145cBwyXqu955HvOxhe w==; IronPort-SDR: UtmEfJVICDtJIxpcP+p1JO8ykrsg5+R1fOdQi3OHOAg/6+Yo75Kit5PTmcUwIsDDPsji+Axaj9 Z/gK+f4hT1+iDoF3COWCeZ4Nlkz/qDnElbkw6tXz2s8FeWjjS5iD1Wz2xOFBUw+FlLYSTb7KQN 9naFRapcnDbpTlcX4kJBDtAHBeAfir1b/hw/k/l6R0ckE6wtLAYHQvoPKh6WxNQq+18nc0Brnu Iy/HkQ/Apsl+hX0135RPUYv1bCBjEXplO72wnsWJRrjCIJXyPCmKSTZKe7kLzM/YUdtlT8gCHt teQl+gYND+R+2xhFeWqdWQ0S X-IronPort-AV: E=Sophos;i="5.84,324,1620716400"; d="scan'208";a="125916720" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 16 Aug 2021 01:57:45 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Mon, 16 Aug 2021 01:57:45 -0700 Received: from m18063-ThinkPad-T460p.mchp-main.com (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2176.14 via Frontend Transport; Mon, 16 Aug 2021 01:57:41 -0700 From: Claudiu Beznea To: , , , , CC: , , , , , Claudiu Beznea Subject: [PATCH v2 2/4] mmc: pwrseq: sd8787: add support for wilc1000 Date: Mon, 16 Aug 2021 11:55:28 +0300 Message-ID: <20210816085530.1723402-3-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210816085530.1723402-1-claudiu.beznea@microchip.com> References: <20210816085530.1723402-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Add new compatible for wilc1000 devices and specify the delay in .data member of struct of_device_id. WILC1000, WILC3000 devices needs a minimum of 5ms delay b/w reset and power lines. Signed-off-by: Claudiu Beznea --- drivers/mmc/core/pwrseq_sd8787.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/core/pwrseq_sd8787.c b/drivers/mmc/core/pwrseq_sd8787.c index 68a826f1c0a1..264e48067af2 100644 --- a/drivers/mmc/core/pwrseq_sd8787.c +++ b/drivers/mmc/core/pwrseq_sd8787.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -27,6 +28,7 @@ struct mmc_pwrseq_sd8787 { struct mmc_pwrseq pwrseq; struct gpio_desc *reset_gpio; struct gpio_desc *pwrdn_gpio; + u32 reset_pwrdwn_delay_ms; }; #define to_pwrseq_sd8787(p) container_of(p, struct mmc_pwrseq_sd8787, pwrseq) @@ -37,7 +39,7 @@ static void mmc_pwrseq_sd8787_pre_power_on(struct mmc_host *host) gpiod_set_value_cansleep(pwrseq->reset_gpio, 1); - msleep(300); + msleep(pwrseq->reset_pwrdwn_delay_ms); gpiod_set_value_cansleep(pwrseq->pwrdn_gpio, 1); } @@ -55,7 +57,8 @@ static const struct mmc_pwrseq_ops mmc_pwrseq_sd8787_ops = { }; static const struct of_device_id mmc_pwrseq_sd8787_of_match[] = { - { .compatible = "mmc-pwrseq-sd8787",}, + { .compatible = "mmc-pwrseq-sd8787", .data = (void *)300 }, + { .compatible = "mmc-pwrseq-wilc1000", .data = (void *)5 }, {/* sentinel */}, }; MODULE_DEVICE_TABLE(of, mmc_pwrseq_sd8787_of_match); @@ -64,11 +67,15 @@ static int mmc_pwrseq_sd8787_probe(struct platform_device *pdev) { struct mmc_pwrseq_sd8787 *pwrseq; struct device *dev = &pdev->dev; + const struct of_device_id *match; pwrseq = devm_kzalloc(dev, sizeof(*pwrseq), GFP_KERNEL); if (!pwrseq) return -ENOMEM; + match = of_match_node(mmc_pwrseq_sd8787_of_match, pdev->dev.of_node); + pwrseq->reset_pwrdwn_delay_ms = (u32)match->data; + pwrseq->pwrdn_gpio = devm_gpiod_get(dev, "powerdown", GPIOD_OUT_LOW); if (IS_ERR(pwrseq->pwrdn_gpio)) return PTR_ERR(pwrseq->pwrdn_gpio);