From patchwork Tue Nov 10 11:20:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11893953 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A9E33138B for ; Tue, 10 Nov 2020 11:21:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BA09207BB for ; Tue, 10 Nov 2020 11:21:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731047AbgKJLVF (ORCPT ); Tue, 10 Nov 2020 06:21:05 -0500 Received: from muru.com ([72.249.23.125]:47722 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729604AbgKJLVE (ORCPT ); Tue, 10 Nov 2020 06:21:04 -0500 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 3F85881A8; Tue, 10 Nov 2020 11:21:07 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Cc: Dave Gerlach , Faiz Abbas , Greg Kroah-Hartman , Grygorii Strashko , Keerthy , Nishanth Menon , Peter Ujfalusi , Roger Quadros , Suman Anna , Tero Kristo , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bjorn Andersson , Michael Turquette , Philipp Zabel , Santosh Shilimkar , Stephen Boyd , linux-clk@vger.kernel.org, linux-remoteproc@vger.kernel.org Subject: [PATCH 4/9] bus: ti-sysc: Support modules without control registers Date: Tue, 10 Nov 2020 13:20:37 +0200 Message-Id: <20201110112042.65489-5-tony@atomide.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201110112042.65489-1-tony@atomide.com> References: <20201110112042.65489-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Some modules like MPU have a powerdomain and functional clock but not necessarily any control registers. Let's allow configuring interconnect target modules with no control registers. 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 @@ -853,8 +853,12 @@ static int sysc_ioremap(struct sysc *ddata) */ static int sysc_map_and_check_registers(struct sysc *ddata) { + struct device_node *np = ddata->dev->of_node; int error; + if (!of_get_property(np, "reg", NULL)) + return 0; + error = sysc_parse_and_check_child_range(ddata); if (error) return error; @@ -2911,6 +2915,9 @@ static int sysc_probe(struct platform_device *pdev) if (!ddata) return -ENOMEM; + ddata->offsets[SYSC_REVISION] = -ENODEV; + ddata->offsets[SYSC_SYSCONFIG] = -ENODEV; + ddata->offsets[SYSC_SYSSTATUS] = -ENODEV; ddata->dev = &pdev->dev; platform_set_drvdata(pdev, ddata);