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 E82E3C4360F for ; Tue, 2 Apr 2019 09:37:22 +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 B630E2082C for ; Tue, 2 Apr 2019 09:37:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="JssqdsYk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B630E2082C 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=A1zI51JUwor2IKDNzcmg/2Sx9hz22gbEOoxzKzFaBuE=; b=JssqdsYkV6z+6u rvNPo0ssnVlHF76Brs5cFgOB43XK2w+dBw7jGb3zJBjRf9uIe+CVBstgm3oVtl2DTakXYS8EX4fSC VydDO+8sIE9v19S2zjmOGTs74FkBwyFuPYmM/jbd4S0nljfRdMEmFtrBK/kkXm0VTGkdqcDLqZUdC y4Wnub7qJ2jT0Teo+Q08hDjU9NYgLBXW4gfHhSKflMvbSDwBnxfk0EtYbFgDyTIxk/XlFzDk4lQBG zUTF1vQzfsALs5oXnp89Ti0a9Hoi94QD/IYPbSkhqgTHgAntMa7Fep4w+NFA+jo9VqPZxI6T59NU3 s1K089km+w+C6z1xk+/Q==; 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 1hBFr2-00020u-1G; Tue, 02 Apr 2019 09:37:16 +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 1hBFqM-00014S-BV; Tue, 02 Apr 2019 09:36:35 +0000 X-UUID: 27ad03c65b1946388def2b09243a9de3-20190402 X-UUID: 27ad03c65b1946388def2b09243a9de3-20190402 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 396276514; Tue, 02 Apr 2019 01:36:25 -0800 Received: from MTKMBS33N2.mediatek.inc (172.27.4.76) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 02:36:24 -0700 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS33N2.mediatek.inc (172.27.4.76) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 17:36:22 +0800 Received: from mszsdclx1067.gcn.mediatek.inc (172.27.4.253) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 2 Apr 2019 17:36:20 +0800 From: wangyan wang To: Michael Turquette , Stephen Boyd , CK Hu Subject: [PATCH V8 4/5] drm/mediatek: no change parent rate in round_rate() for mt2701 hdmi phy Date: Tue, 2 Apr 2019 17:36:04 +0800 Message-ID: <20190402093605.82004-5-wangyan.wang@mediatek.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20190402093605.82004-1-wangyan.wang@mediatek.com> References: <20190402093605.82004-1-wangyan.wang@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-20190402_023634_401599_BCDC6771 X-CRM114-Status: GOOD ( 11.46 ) 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: Ryder Lee , Philipp Zabel , srv_heupstream@mediatek.com, chunhui dai , David Airlie , Sean Wang , linux-kernel@vger.kernel.org, wangyan wang , linux-mediatek@lists.infradead.org, dri-devel@lists.freedesktop.org, Daniel Vetter , Matthias Brugger , Colin Ian King , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.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 From: Wangyan Wang This is the third step to make MT2701 HDMI stable. We should not change the rate of parent for hdmi phy when doing round_rate for this clock. The parent clock of hdmi phy must be the same as it. We change it when doing set_rate only. Signed-off-by: Wangyan Wang --- drivers/gpu/drm/mediatek/mtk_hdmi_phy.c | 14 -------------- drivers/gpu/drm/mediatek/mtk_hdmi_phy.h | 2 -- drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c | 6 ++++++ drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c | 14 ++++++++++++++ 4 files changed, 20 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c index 13bbaf997819..fe05aa762107 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c @@ -15,20 +15,6 @@ static const struct phy_ops mtk_hdmi_phy_dev_ops = { .owner = THIS_MODULE, }; -long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) -{ - struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); - - hdmi_phy->pll_rate = rate; - if (rate <= 74250000) - *parent_rate = rate; - else - *parent_rate = rate / 2; - - return rate; -} - unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h index 0045824c1be9..86895be0d192 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h @@ -49,8 +49,6 @@ void mtk_hdmi_phy_set_bits(struct mtk_hdmi_phy *hdmi_phy, u32 offset, void mtk_hdmi_phy_mask(struct mtk_hdmi_phy *hdmi_phy, u32 offset, u32 val, u32 mask); struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw); -long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate); unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate); diff --git a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c index 844e622f052c..5f8c2b044034 100644 --- a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c +++ b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c @@ -154,6 +154,12 @@ static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate, return 0; } +static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + return rate; +} + static const struct clk_ops mtk_hdmi_phy_pll_ops = { .prepare = mtk_hdmi_pll_prepare, .unprepare = mtk_hdmi_pll_unprepare, diff --git a/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c index f44066875dcd..472d2fda0a03 100644 --- a/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c +++ b/drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c @@ -285,6 +285,20 @@ static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate, return 0; } +static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + hdmi_phy->pll_rate = rate; + if (rate <= 74250000) + *parent_rate = rate; + else + *parent_rate = rate / 2; + + return rate; +} + static const struct clk_ops mtk_hdmi_phy_pll_ops = { .prepare = mtk_hdmi_pll_prepare, .unprepare = mtk_hdmi_pll_unprepare, -- 2.14.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel