From patchwork Tue Apr 26 08:20:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 568021 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 515D8C46467 for ; Tue, 26 Apr 2022 08:32:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345075AbiDZIfQ (ORCPT ); Tue, 26 Apr 2022 04:35:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345206AbiDZIeN (ORCPT ); Tue, 26 Apr 2022 04:34:13 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EFB96FA1F; Tue, 26 Apr 2022 01:26:30 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BD12D61841; Tue, 26 Apr 2022 08:26:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CDA21C385BD; Tue, 26 Apr 2022 08:26:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650961589; bh=uezcfXl9P+IPn6+18yV+x/ymhvpLGiH3VEU2mLngXFA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Xs5zBocbkLcmip0zQG/m0Edcxu+0D4A7or/bUo2xhLPmCgQ+3E8La7E1e2LZfJ+1V 0chEO/SzjpS4vYhqSHzcI6YzeRuPILUiIPcMHQiiiqkgsWt2iIpnkU7J6MZUvFsWmq 0NMZEZa/S9isplUobUYL4Tm39yiAVg2SpiVC9PXE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sameer Pujar , Jon Hunter , Thierry Reding , Philipp Zabel , Sasha Levin Subject: [PATCH 4.19 18/53] reset: tegra-bpmp: Restore Handle errors in BPMP response Date: Tue, 26 Apr 2022 10:20:58 +0200 Message-Id: <20220426081736.185798092@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220426081735.651926456@linuxfoundation.org> References: <20220426081735.651926456@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sameer Pujar [ Upstream commit d1da1052ffad63aa5181b69f20a6952e31f339c2 ] This reverts following commit 69125b4b9440 ("reset: tegra-bpmp: Revert Handle errors in BPMP response"). The Tegra194 HDA reset failure is fixed by commit d278dc9151a0 ("ALSA: hda/tegra: Fix Tegra194 HDA reset failure"). The temporary revert of original commit c045ceb5a145 ("reset: tegra-bpmp: Handle errors in BPMP response") can be removed now. Signed-off-by: Sameer Pujar Tested-by: Jon Hunter Reviewed-by: Jon Hunter Acked-by: Thierry Reding Signed-off-by: Philipp Zabel Link: https://lore.kernel.org/r/1641995806-15245-1-git-send-email-spujar@nvidia.com Signed-off-by: Sasha Levin --- drivers/reset/tegra/reset-bpmp.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/reset/tegra/reset-bpmp.c b/drivers/reset/tegra/reset-bpmp.c index 5daf2ee1a396..f9790b60f996 100644 --- a/drivers/reset/tegra/reset-bpmp.c +++ b/drivers/reset/tegra/reset-bpmp.c @@ -23,6 +23,7 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc, struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc); struct mrq_reset_request request; struct tegra_bpmp_message msg; + int err; memset(&request, 0, sizeof(request)); request.cmd = command; @@ -33,7 +34,13 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc, msg.tx.data = &request; msg.tx.size = sizeof(request); - return tegra_bpmp_transfer(bpmp, &msg); + err = tegra_bpmp_transfer(bpmp, &msg); + if (err) + return err; + if (msg.rx.ret) + return -EINVAL; + + return 0; } static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,