From patchwork Fri Dec 3 14:15:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: wujek dev X-Patchwork-Id: 12655319 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 172BDC433FE for ; Fri, 3 Dec 2021 14:15:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1381403AbhLCOTF (ORCPT ); Fri, 3 Dec 2021 09:19:05 -0500 Received: from mail-0301.mail-europe.com ([188.165.51.139]:35257 "EHLO mail-0301.mail-europe.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244622AbhLCOTE (ORCPT ); Fri, 3 Dec 2021 09:19:04 -0500 Date: Fri, 03 Dec 2021 14:15:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wujek.eu; s=protonmail; t=1638540937; bh=LcPPdCgL5aGQN92Z/ZpQSAiXoGD4oTZimSgmScFjJF0=; h=Date:To:From:Cc:Reply-To:Subject:Message-ID:From:To:Cc; b=WOGK/BBp21RpZbbX6yADEUtPusvnWhOJZkzImDUrFz85knPcmyp51jyUnDNtfOEI5 5Rf6mTnF3G30FGgYWqDhSjFPrtkWimfwgWn0flcb2o2NZiuidnJ5YdgszRMa05jUlR +R9MDrMAsg/o9SaqONRJ57KOL0htN7LA/UnI9qLTG03IBMBscNOG105bpSffiozMUk CKGJ9Y1Fzkk+W0IVOWcGa8A28EjgQoH0zGilRkRmYJUBLSoro40IZDm/NJW1mKRsnb kpqrHfNdVBv7CbekqR7DDuTkygHsS40JlmFGtpnnC8PAYRpd3qdKCWK4/SlDxsrhvA Sx0bY/JpaBQBg== To: Michael Turquette , Stephen Boyd From: Adam Wujek Cc: Adam Wujek , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Reply-To: Adam Wujek Subject: [PATCH] clk: si5341: Add sysfs property to check selected input Message-ID: <20211203141515.2448129-1-dev_public@wujek.eu> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Add a sysfs property to check the selected input. E.g.: cat input_selected 0 in0 WR25M Signed-off-by: Adam Wujek --- drivers/clk/clk-si5341.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) -- 2.17.1 diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c index 57ae183982d8..b7641abe6747 100644 --- a/drivers/clk/clk-si5341.c +++ b/drivers/clk/clk-si5341.c @@ -1536,12 +1536,31 @@ static ssize_t clear_sticky_store(struct device *dev, } static DEVICE_ATTR_WO(clear_sticky); +static ssize_t input_selected_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct clk_si5341 *data = dev_get_drvdata(dev); + int res = si5341_clk_get_selected_input(data); + const char *input_name_dtb; + + if (res < 0) + return res; + input_name_dtb = __clk_get_name(devm_clk_get(dev, + si5341_input_clock_names[res])); + /* input id, input name, input name from DTB */ + return snprintf(buf, PAGE_SIZE, "%d %s %s\n", res, + si5341_input_clock_names[res], input_name_dtb); +} +static DEVICE_ATTR_RO(input_selected); + static const struct attribute *si5341_attributes[] = { &dev_attr_input_present.attr, &dev_attr_input_present_sticky.attr, &dev_attr_pll_locked.attr, &dev_attr_pll_locked_sticky.attr, &dev_attr_clear_sticky.attr, + &dev_attr_input_selected.attr, NULL };