From patchwork Wed Nov 22 00:54:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Acayan X-Patchwork-Id: 13463784 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RQyaFcGy" Received: from mail-qk1-x72b.google.com (mail-qk1-x72b.google.com [IPv6:2607:f8b0:4864:20::72b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14A0F197 for ; Tue, 21 Nov 2023 16:58:02 -0800 (PST) Received: by mail-qk1-x72b.google.com with SMTP id af79cd13be357-7788f727dd7so388467885a.1 for ; Tue, 21 Nov 2023 16:58:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1700614681; x=1701219481; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=MFz25rhV/tQYJ/usJamHobIxJPBWkC1P9QKNu6+n9H0=; b=RQyaFcGy1L7mKR3OeWs2VDs5rwyQLmOgjOVuvLXDYwjctKynqb6HLMdxvPF2S2zxvZ iU15zO1YwWhdcoW22vzveet7H1czi54KDFThNLPyj1LSIqf9DR9bS7qw/L17itlIYYug GPZoqDNJurcqYsm6YVZeiD1fyQpVTo340NgyAb8QNe45LTdtlZakVFzujoyoPtR8Duj7 P8ONOu1EKoa/G3dx9yXI1iui3VqbCt36tQYtQUwYRuIQ3PuPgjSEQ8dd4/s7majz8AyU bAL/KRA7mRhb5W0SWpdeeIhg3zMfRrOZ2WwYg11+dAbh6UN6a+FS6tshBEHQP1hK56/E 4O1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700614681; x=1701219481; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=MFz25rhV/tQYJ/usJamHobIxJPBWkC1P9QKNu6+n9H0=; b=ffB5NYefyyP58KQGNEEye9ww81c2OjkF8aAaGr4idYMLn5fghDkZDWuQ8grkw96e9L wTldXYt2h8xCzP+Azbn1OEDEWuBZ5uwKoWY4Bei/pmUfMYkz6yyD5qwNs8HHUrRo/IAJ C7AWdQ3Xbsox3ebx/2NlzVJY6AGrd/5fHtoE4lwwtX2iY68hk02nc8hki/GyQJI/j+ny nFHFqVkUKNs4XSfmdGH3sAk/ut9krmzp+WnQorBIsZHorz9b6xXU2waOWjGny6feQ/5D ox0j/7E7jFkRe/Y6EHBJOV6+/2NNkuseNubpygwwN1ZWIQibOoVDKIAaTepv9sjR5Fg8 KXYQ== X-Gm-Message-State: AOJu0YygiEle9RVsymqP2NGnE/sIgyWrq5rOak30nFtg7R7gtdcaK7BH DBvoFssfEmMdcrOaQP7djMg= X-Google-Smtp-Source: AGHT+IHK5zmXtx2CrzmRrXrePJ8VaQvJ/bDCoqi8nx/Atu1M6AvENNujwhGE+whhP3wVQywcUytgug== X-Received: by 2002:a05:6214:c41:b0:66d:12b5:68c1 with SMTP id r1-20020a0562140c4100b0066d12b568c1mr923386qvj.59.1700614681132; Tue, 21 Nov 2023 16:58:01 -0800 (PST) Received: from localhost ([2607:fea8:529e:7800::80ec]) by smtp.gmail.com with ESMTPSA id j2-20020ad453a2000000b0066d32666a20sm4427293qvv.71.2023.11.21.16.57.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Nov 2023 16:58:00 -0800 (PST) From: Richard Acayan To: Hans de Goede , Helge Deller , Thierry Reding , linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Richard Acayan Subject: [PATCH] fbdev/simplefb: Suppress error on missing power domains Date: Tue, 21 Nov 2023 19:54:59 -0500 Message-ID: <20231122005457.330066-3-mailingradian@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When the power domains are missing, the call to of_count_phandle_with_args fails with -ENOENT. The power domains are not required and there are some device trees that do not specify them. Suppress this error to fix devices without power domains attached to simplefb. Fixes: 92a511a568e4 ("fbdev/simplefb: Add support for generic power-domains") Closes: https://lore.kernel.org/linux-fbdev/ZVwFNfkqjrvhFHM0@radian Signed-off-by: Richard Acayan --- drivers/video/fbdev/simplefb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index fe682af63827..6f58ee276ad1 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -466,6 +466,10 @@ static int simplefb_attach_genpds(struct simplefb_par *par, err = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); if (err < 0) { + /* Nothing wrong if optional PDs are missing */ + if (err == -ENOENT) + return 0; + dev_info(dev, "failed to parse power-domains: %d\n", err); return err; }