From patchwork Thu Jun 24 06:14:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?6raM7YOc7JiB?= X-Patchwork-Id: 466590 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=-16.7 required=3.0 tests=BAYES_00, 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 415E3C48BDF for ; Thu, 24 Jun 2021 06:21:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20337613EE for ; Thu, 24 Jun 2021 06:21:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231132AbhFXGXq (ORCPT ); Thu, 24 Jun 2021 02:23:46 -0400 Received: from smtp1.hiworks.co.kr ([121.254.168.204]:40036 "EHLO smtp1.hiworks.co.kr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230397AbhFXGXq (ORCPT ); Thu, 24 Jun 2021 02:23:46 -0400 X-Greylist: delayed 398 seconds by postgrey-1.27 at vger.kernel.org; Thu, 24 Jun 2021 02:23:46 EDT Received: (qmail 141389 invoked from network); 24 Jun 2021 15:14:45 +0900 Received: from unknown (HELO hiworks.co.kr) (192.168.21.201) by 0 (qmail 1.03 + ejcp v14) with SMTP; 24 Jun 2021 15:14:45 +0900 Received: (qmail 29379 invoked from network); 24 Jun 2021 15:14:45 +0900 Received: from unknown (HELO localhost.localdomain) (tykwon@m2i.co.kr@58.75.176.98) by 0 (qmail 1.03 + ejcp v14) with SMTP; 24 Jun 2021 15:14:45 +0900 X-Authinfo: HIWORKS SMTP authenticated From: Kwon Tae-young To: Ulf Hansson Cc: Kwon Tae-young , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] mmc: core: Added support for LED trigger only when SD card is connected Date: Thu, 24 Jun 2021 15:14:17 +0900 Message-Id: <20210624061418.30361-1-tykwon@m2i.co.kr> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org led_trigger_event() is always called. In this case, if the LED trigger is set to the SD Card, the trigger will occur even when the SD card is not connected and the LED will blink. In case of SD Card, it is judged based on Card Detection information and changes to generate LED trigger only when SD Card is connected. Board tested: NXP i.MX 8M board Signed-off-by: Kwon Tae-young --- drivers/mmc/core/core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index f194940c5974..b3156f6c5cfa 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -352,7 +352,11 @@ int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq) if (err) return err; - led_trigger_event(host->led, LED_FULL); + if (host->ops->get_cd) + host->ops->get_cd(host) ? led_trigger_event(host->led, LED_FULL) : NULL; + else + led_trigger_event(host->led, LED_FULL); + __mmc_start_request(host, mrq); return 0;