From patchwork Thu Jun 20 07:47:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Ni X-Patchwork-Id: 13704922 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 93742C2BA18 for ; Thu, 20 Jun 2024 07:48:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F145A10E2BF; Thu, 20 Jun 2024 07:48:06 +0000 (UTC) Received: from cstnet.cn (smtp84.cstnet.cn [159.226.251.84]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4B5DC10E2BF for ; Thu, 20 Jun 2024 07:48:04 +0000 (UTC) Received: from localhost (unknown [124.16.138.129]) by APP-05 (Coremail) with SMTP id zQCowACHjeWs3nNms1TLEQ--.25969S2; Thu, 20 Jun 2024 15:47:56 +0800 (CST) From: Chen Ni To: neil.armstrong@linaro.org, quic_jesszhan@quicinc.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH 1/2] drm/panel: ltk050h3146w: add check for mipi_dsi_dcs_enter_sleep_mode Date: Thu, 20 Jun 2024 15:47:20 +0800 Message-Id: <20240620074720.852495-1-nichen@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: zQCowACHjeWs3nNms1TLEQ--.25969S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Xw4kCFyfCF1rtrWDWryUZFb_yoWfArb_CF 1xZr47Xryjk3s8uw17AanrAryakan8uF4ku3W0va4fKw1UCwnxX34kXryqvrZ8Jr4jyF98 C3WUtFyjvF4xGjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbVxFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628v n2kIc2xKxwCY02Avz4vE14v_GF4l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr 0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY 17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcV C0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY 6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa 73UjIFyTuYvjfUOPEfUUUUU X-Originating-IP: [124.16.138.129] X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add check for the return value of mipi_dsi_dcs_enter_sleep_mode() and return the error if it fails in order to catch the error. Signed-off-by: Chen Ni Reviewed-by: Christophe JAILLET Reviewed-by: Jessica Zhang Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c index 292aa26a456d..24bf05d0589f 100644 --- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c @@ -526,7 +526,7 @@ static int ltk050h3146w_unprepare(struct drm_panel *panel) return ret; } - mipi_dsi_dcs_enter_sleep_mode(dsi); + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); if (ret < 0) { dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret); return ret;