From patchwork Fri Nov 13 10:50:35 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?RWRkaWUgSHVhbmcgKOm7g+aZuuWCkSk=?= X-Patchwork-Id: 7610531 Return-Path: X-Original-To: patchwork-linux-mediatek@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id BC75B9F392 for ; Fri, 13 Nov 2015 10:51:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D5394205E2 for ; Fri, 13 Nov 2015 10:51:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0B8AB204FC for ; Fri, 13 Nov 2015 10:51:15 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZxBwo-0006Mo-K2; Fri, 13 Nov 2015 10:51:14 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZxBwm-0006JX-4R; Fri, 13 Nov 2015 10:51:12 +0000 X-Listener-Flag: 11101 Received: from mtkhts07.mediatek.inc [(172.21.101.69)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 643684780; Fri, 13 Nov 2015 18:50:47 +0800 Received: from mtkslt208.mediatek.inc (10.21.15.139) by mtkhts07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 14.3.181.6; Fri, 13 Nov 2015 18:50:45 +0800 From: Eddie Huang To: Matthias Brugger , Arnd Bergmann , Kevin Hilman Subject: [PATCH] soc: Mediatek: Enable SCPSYS power domain driver by default Date: Fri, 13 Nov 2015 18:50:35 +0800 Message-ID: <1447411835-19035-1-git-send-email-eddie.huang@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151113_025112_352029_C97F131C X-CRM114-Status: GOOD ( 13.31 ) X-Spam-Score: -1.1 (-) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: srv_heupstream@mediatek.com, Sascha Hauer , linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Eddie Huang , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If enable Mediatek 8173 SoC, it should also enable power domain driver. Otherwise access clk subsystem register will fail. Signed-off-by: Eddie Huang Tested-by: Kevin Hilman Acked-by: Matthias Brugger --- MT8173 clk driver is enabled by default, but power domain driver is not. If MM subsystem power on, mm_sel topckgen mux is off, then access any MM subsystem register will cause system hang. Enable SCPSYS driver to make sure both MM subsystem power and mm_sel to on/off together to avoid system hang. This patch fix current linux-next mt8173-evb boot to shell fail problem. --- drivers/soc/mediatek/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig index 9d50682..0a4ea80 100644 --- a/drivers/soc/mediatek/Kconfig +++ b/drivers/soc/mediatek/Kconfig @@ -23,6 +23,7 @@ config MTK_PMIC_WRAP config MTK_SCPSYS bool "MediaTek SCPSYS Support" depends on ARCH_MEDIATEK || COMPILE_TEST + default ARM64 && ARCH_MEDIATEK select REGMAP select MTK_INFRACFG select PM_GENERIC_DOMAINS if PM