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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY,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 B3183C10F13 for ; Mon, 8 Apr 2019 11:56:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7330B2063F for ; Mon, 8 Apr 2019 11:56:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="t7irHJn1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7330B2063F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hYNsM3TAhVCmgqiX4z8+7PUqhFSBIOYKl+KqkHaRBZg=; b=t7irHJn1W/lybo pObMvZ7PRM2Mv555AM9EAzyiQBOCRlOjBuIBdq4TzmOF7fOx0fQJMxVCuZ646QSaO+rU8ctqW9+Jb oKQvHRfCFaxtk15nkRAiS4EhTBwV2ZUdjvhuxqEOcCIZ1dDUr2jXEjoOzQtCci/EYF+sUTLYBG9aH QtGCs48uKhW91gz6t3PcmVxpkbtGEGiTV0UNBZAeBtcBjto3JVxy9e2bizOyrrYR69SsrYAi0Kgn3 Rz7uP7/drm4hNu0iH3sWN3espI7pY8nDR6M582lsizB/C2LIvPOc4lUkwTQEl2UyqBy7ar4UT/M7J V1rBRcD5DWA7I33uf7ZQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hDSt6-0002zR-GA; Mon, 08 Apr 2019 11:56:32 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hDSsD-0001n8-JO; Mon, 08 Apr 2019 11:55:39 +0000 X-UUID: b6ce870694d345a182afb3e011e51cf9-20190408 X-UUID: b6ce870694d345a182afb3e011e51cf9-20190408 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1726993164; Mon, 08 Apr 2019 03:55:31 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Apr 2019 04:55:30 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Apr 2019 19:55:26 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 8 Apr 2019 19:55:26 +0800 From: Stu Hsieh To: Mauro Carvalho Chehab , Matthias Brugger Subject: [PATCH 07/14] [media] mtk-mipicsi: enable/disable ana clk Date: Mon, 8 Apr 2019 19:54:58 +0800 Message-ID: <1554724505-19882-8-git-send-email-stu.hsieh@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1554724505-19882-1-git-send-email-stu.hsieh@mediatek.com> References: <1554724505-19882-1-git-send-email-stu.hsieh@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190408_045537_654803_464A6116 X-CRM114-Status: UNSURE ( 9.56 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Stu Hsieh , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch enable/disable ana clk when power on/off Signed-off-by: Stu Hsieh --- .../media/platform/mtk-mipicsi/mtk_mipicsi.c | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c index c2f75d9b64b8..99991f698edf 100644 --- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c +++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c @@ -164,6 +164,41 @@ struct mtk_mipicsi_dev { V4L2_MBUS_PCLK_SAMPLE_FALLING | \ V4L2_MBUS_DATA_ACTIVE_HIGH) +static void mtk_mipicsi_ana_clk_enable(void __iomem *base, bool enable) +{ + if (enable) { + writel(1UL | readl(base + MIPI_RX_ANA00_CSI), + base + MIPI_RX_ANA00_CSI); + writel(1UL | readl(base + MIPI_RX_ANA04_CSI), + base + MIPI_RX_ANA04_CSI); + writel(1UL | readl(base + MIPI_RX_ANA08_CSI), + base + MIPI_RX_ANA08_CSI); + writel(1UL | readl(base + MIPI_RX_ANA0C_CSI), + base + MIPI_RX_ANA0C_CSI); + writel(1UL | readl(base + MIPI_RX_ANA10_CSI), + base + MIPI_RX_ANA10_CSI); + writel(1UL | readl(base + MIPI_RX_ANA20_CSI), + base + MIPI_RX_ANA20_CSI); + writel(1UL | readl(base + MIPI_RX_ANA24_CSI), + base + MIPI_RX_ANA24_CSI); + } else { + writel(~1UL & readl(base + MIPI_RX_ANA00_CSI), + base + MIPI_RX_ANA00_CSI); + writel(~1UL & readl(base + MIPI_RX_ANA04_CSI), + base + MIPI_RX_ANA04_CSI); + writel(~1UL & readl(base + MIPI_RX_ANA08_CSI), + base + MIPI_RX_ANA08_CSI); + writel(~1UL & readl(base + MIPI_RX_ANA0C_CSI), + base + MIPI_RX_ANA0C_CSI); + writel(~1UL & readl(base + MIPI_RX_ANA10_CSI), + base + MIPI_RX_ANA10_CSI); + writel(~1UL & readl(base + MIPI_RX_ANA20_CSI), + base + MIPI_RX_ANA20_CSI); + writel(~1UL & readl(base + MIPI_RX_ANA24_CSI), + base + MIPI_RX_ANA24_CSI); + } +} + static int get_subdev_register(const struct soc_camera_device *icd, struct v4l2_dbg_register *reg) { @@ -802,6 +837,8 @@ static int mtk_mipicsi_pm_suspend(struct device *dev) for (i = 0; i < mipicsi->clk_num; ++i) clk_disable_unprepare(mipicsi->clk[i]); + mtk_mipicsi_ana_clk_enable(mipicsi->ana, false); + if (mipicsi->larb_pdev != NULL) mtk_smi_larb_put(mipicsi->larb_pdev); @@ -839,6 +876,8 @@ static int mtk_mipicsi_pm_resume(struct device *dev) return ret; } + mtk_mipicsi_ana_clk_enable(mipicsi->ana, true); + /* enable digtal clock */ for (i = 0; i < mipicsi->clk_num; ++i) (void)clk_prepare_enable(mipicsi->clk[i]); -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel