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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 E4942C04AB3 for ; Mon, 27 May 2019 12:14:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C558521670 for ; Mon, 27 May 2019 12:14:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726956AbfE0MOM (ORCPT ); Mon, 27 May 2019 08:14:12 -0400 Received: from muru.com ([72.249.23.125]:51144 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726724AbfE0MOK (ORCPT ); Mon, 27 May 2019 08:14:10 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 5AD878123; Mon, 27 May 2019 12:14:29 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Rob Herring , devicetree@vger.kernel.org Subject: [PATCH 01/12] bus: ti-sysc: Support 16-bit writes too Date: Mon, 27 May 2019 05:13:37 -0700 Message-Id: <20190527121348.45251-2-tony@atomide.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190527121348.45251-1-tony@atomide.com> References: <20190527121348.45251-1-tony@atomide.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We need to also support 16-bit writes for i2c in addition to the reads when we start configuring the sysconfig register for reset and idle modes. Signed-off-by: Tony Lindgren --- drivers/bus/ti-sysc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -100,6 +100,13 @@ static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np, static void sysc_write(struct sysc *ddata, int offset, u32 value) { + if (ddata->cfg.quirks & SYSC_QUIRK_16BIT) { + writew_relaxed(value & 0xffff, ddata->module_va + offset); + writew_relaxed(value >> 16, ddata->module_va + offset + 4); + + return; + } + writel_relaxed(value, ddata->module_va + offset); } -- 2.21.0