From patchwork Fri Oct 29 18:34:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 12593293 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 327B7C4167D for ; Fri, 29 Oct 2021 18:34:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 04CE2610D0 for ; Fri, 29 Oct 2021 18:34:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231262AbhJ2ShM (ORCPT ); Fri, 29 Oct 2021 14:37:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230419AbhJ2ShH (ORCPT ); Fri, 29 Oct 2021 14:37:07 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06FDFC061714; Fri, 29 Oct 2021 11:34:39 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id s24so7426887plp.0; Fri, 29 Oct 2021 11:34:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KS/QFIB9iRAFf7dtvYUgDKvUDEV07sqKABKwHV353E8=; b=B2UiioGffHt5mNj/7Xj0XMUQPH4n2y9lJ+N3OnGgeeAzT8KxZDRGpLrMCumrRjUmRJ 1RPP2acX4eeX9SIbzAZ99j95ciYvTmwSNtMYk0UwFI/1IQwObaplTlnJyy7lP4LOUyAM 6RuGulPPn1qhI9L+f4HbGO/YIsEzxJndBlZsqdIqKRIhZEI6W8ybtDrSrcETrJ2mhxgA IIxjSlRdqEHUEdeC8fQ/5F0+RFwvlPr7PyozJOdua9/MdjEwQg3sKflNNqcRjP1md5gb rebRt2KCWqsKyjHxoX9bCL94Nff+TKjlG1y6edsJemRGx6PPgOy9/nxkCd3qWeilf/ys h44g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=KS/QFIB9iRAFf7dtvYUgDKvUDEV07sqKABKwHV353E8=; b=u6xvkQxHD2vPxERjue4r8C4//CEpRiIEnuDXongyg4igl07X6GeRVrdSAKAmO3pKnJ Fq95OfxzCLFQQAQ9XSSSc6IPQxdPFergLayehooKFfJXIroT5ZzjsdIOVu8B1rVfEVqT 0r6hvlCIRqexVlIgLkPq8YbGDjG+aFGOA592buT9LDpQD4ZCTTwDl2u8jjJRYUT+0TtZ M36EQtn3Zf0W40MBl78jvlR35YQO2UhUj0rGE8Ca8apa0+mF3/cHi3wR94dRpYVRSGA5 ouxblZYZk6wFTHWnH3AG8TncLVAZYqC2yT5Fff37FaryKK656pZFl9FEMK1MsJS6VsCA /ntg== X-Gm-Message-State: AOAM531y9/+QsyTR89ClZm6+tewos6OjvkqSUFCRPUS3ER+y8Yljmn3P /W2Xl6VP0NEmet1sgU5biVsinm6pN0I= X-Google-Smtp-Source: ABdhPJxMVj6wK3FCKR+yxIexnahKPndvOCDIRDoFoUymJ4h+UoK5h17lbhNMYdXIkkMtI81gg4xdLQ== X-Received: by 2002:a17:90b:3802:: with SMTP id mq2mr13182411pjb.213.1635532478146; Fri, 29 Oct 2021 11:34:38 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id j15sm7730868pfh.35.2021.10.29.11.34.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Oct 2021 11:34:37 -0700 (PDT) From: Florian Fainelli To: linux-kernel@vger.kernel.org Cc: rafal@milecki.pl, Florian Fainelli , Guenter Roeck , Wim Van Sebroeck , Rob Herring , Thomas Bogendoerfer , bcm-kernel-feedback-list@broadcom.com (maintainer:BROADCOM BCM63XX ARM ARCHITECTURE), Justin Chen , linux-watchdog@vger.kernel.org (open list:WATCHDOG DEVICE DRIVERS), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-mips@vger.kernel.org (open list:MIPS), linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM63XX ARM ARCHITECTURE) Subject: [PATCH v2 3/7] watchdog: bcm7038_wdt: Support platform data configuration Date: Fri, 29 Oct 2021 11:34:26 -0700 Message-Id: <20211029183430.4086765-4-f.fainelli@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211029183430.4086765-1-f.fainelli@gmail.com> References: <20211029183430.4086765-1-f.fainelli@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The BCM7038 watchdog driver needs to be able to obtain a specific clock name on BCM63xx platforms which is the "periph" clock ticking at 50MHz. make it possible to specify the clock name to obtain via platform data. Reviewed-by: Guenter Roeck Signed-off-by: Florian Fainelli --- drivers/watchdog/bcm7038_wdt.c | 8 +++++++- include/linux/platform_data/bcm7038_wdt.h | 8 ++++++++ 2 files changed, 15 insertions(+), 1 deletion(-) create mode 100644 include/linux/platform_data/bcm7038_wdt.h diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c index acaaa0005d5b..506cd7ef9c77 100644 --- a/drivers/watchdog/bcm7038_wdt.c +++ b/drivers/watchdog/bcm7038_wdt.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -133,8 +134,10 @@ static void bcm7038_clk_disable_unprepare(void *data) static int bcm7038_wdt_probe(struct platform_device *pdev) { + struct bcm7038_wdt_platform_data *pdata = pdev->dev.platform_data; struct device *dev = &pdev->dev; struct bcm7038_watchdog *wdt; + const char *clk_name = NULL; int err; wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL); @@ -147,7 +150,10 @@ static int bcm7038_wdt_probe(struct platform_device *pdev) if (IS_ERR(wdt->base)) return PTR_ERR(wdt->base); - wdt->clk = devm_clk_get(dev, NULL); + if (pdata && pdata->clk_name) + clk_name = pdata->clk_name; + + wdt->clk = devm_clk_get(dev, clk_name); /* If unable to get clock, use default frequency */ if (!IS_ERR(wdt->clk)) { err = clk_prepare_enable(wdt->clk); diff --git a/include/linux/platform_data/bcm7038_wdt.h b/include/linux/platform_data/bcm7038_wdt.h new file mode 100644 index 000000000000..e18cfd9ec8f9 --- /dev/null +++ b/include/linux/platform_data/bcm7038_wdt.h @@ -0,0 +1,8 @@ +#ifndef __BCM7038_WDT_PDATA_H +#define __BCM7038_WDT_PDATA_H + +struct bcm7038_wdt_platform_data { + const char *clk_name; +}; + +#endif /* __BCM7038_WDT_PDATA_H */