Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754806AbbL3MgR (ORCPT ); Wed, 30 Dec 2015 07:36:17 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:38547 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754619AbbL3MgO (ORCPT ); Wed, 30 Dec 2015 07:36:14 -0500 X-Listener-Flag: 11101 From: Henry Chen To: Matthias Brugger CC: Sascha Hauer , , , , Henry Chen Subject: [PATCH] soc: mediatek: PMIC wrap: Enable STAUPD_PRD before WDT_SRC_EN enabled. Date: Wed, 30 Dec 2015 20:36:01 +0800 Message-ID: <1451478961-5668-1-git-send-email-henryc.chen@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1289 Lines: 34 The STAUPD_TRIG will be enable when WDT_INT enable on probe function, if doesn't enable STAUPD_PRD together, interrupt will be triggered because STAUPD timeout. To avoid unexpected interrupt, enable periodic status update which will be updated to PMIC every selected time period. Signed-off-by: Henry Chen --- drivers/soc/mediatek/mtk-pmic-wrap.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c index a8cde17..6e5c20f 100644 --- a/drivers/soc/mediatek/mtk-pmic-wrap.c +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c @@ -904,6 +904,11 @@ static int pwrap_probe(struct platform_device *pdev) return -ENODEV; } + /* + * Enable periodic status update which will be updated to PMIC + * every selected time period. + */ + pwrap_writel(wrp, 0x5, PWRAP_STAUPD_PRD); /* Initialize watchdog, may not be done by the bootloader */ pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT); pwrap_writel(wrp, 0xffffffff, PWRAP_WDT_SRC_EN); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/