From mboxrd@z Thu Jan 1 00:00:00 1970 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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 2B996C43381 for ; Fri, 22 Mar 2019 11:52:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EFB9220693 for ; Fri, 22 Mar 2019 11:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553255564; bh=eq3FdBVIqBifTeAemuJW40fZNe1Je8R7qaCzzLFEFDU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=nORkklbb7GY/WEK4GwL719LeMz5Y1zMivPlGVKG1nPsyqWA1EOI+5Mznn4jVgrxfW WRIlsGKMpK1DCbeW3v01NEfhvF/0Y3ExXoBRgXOFk8cZV9mpiWCIBnI2WR2QPocebT csbOuqInZqXPT8pMNs9YXH+QYY/c3vzwN6LtSsLg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732487AbfCVLwn (ORCPT ); Fri, 22 Mar 2019 07:52:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:56652 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732899AbfCVLwi (ORCPT ); Fri, 22 Mar 2019 07:52:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B4EF22082C; Fri, 22 Mar 2019 11:52:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553255558; bh=eq3FdBVIqBifTeAemuJW40fZNe1Je8R7qaCzzLFEFDU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kTH5ffLK7Pn4HCIBD/Hrl9klFPmhXizlsCXlN4ClxRQNeqWF+h0gFj+JuEQbpc+xY Gd7SXL/eyqL4J2Pg41l+1xq2yRE0oP/dt2wRppVvtArEXjXmFPnRJl84p+9huFVjsN H9FwQnY5eoXEqop8+h0vC811VZJg8bA7bmkWJL8g= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dmitry Osipenko , Sowjanya Komatineni , Wolfram Sang Subject: [PATCH 4.14 128/183] i2c: tegra: fix maximum transfer size Date: Fri, 22 Mar 2019 12:15:56 +0100 Message-Id: <20190322111251.007277585@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190322111241.819468003@linuxfoundation.org> References: <20190322111241.819468003@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sowjanya Komatineni commit f4e3f4ae1d9c9330de355f432b69952e8cef650c upstream. Tegra186 and prior supports maximum 4K bytes per packet transfer including 12 bytes of packet header. This patch fixes max write length limit to account packet header size for transfers. Cc: stable@vger.kernel.org # 4.4+ Reviewed-by: Dmitry Osipenko Signed-off-by: Sowjanya Komatineni Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -794,7 +794,7 @@ static const struct i2c_algorithm tegra_ /* payload size is only 12 bit */ static const struct i2c_adapter_quirks tegra_i2c_quirks = { .max_read_len = 4096, - .max_write_len = 4096, + .max_write_len = 4096 - 12, }; static const struct tegra_i2c_hw_feature tegra20_i2c_hw = {