From patchwork Tue Oct 10 03:01:12 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chaotian Jing X-Patchwork-Id: 9994879 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 02A5260216 for ; Tue, 10 Oct 2017 03:03:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E7D1423B3C for ; Tue, 10 Oct 2017 03:03:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DC68423F88; Tue, 10 Oct 2017 03:03:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4AB4B23B3C for ; Tue, 10 Oct 2017 03:03:44 +0000 (UTC) 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=d3iYv1pPGuiylKTXg6GTLNSDoq54iYLbPPdyxuB1HgU=; b=U2Qdh6VORsyHpY nGliU6bWV/Ylw4czRfipognO0wfLz3Al5XafGPul41SptYZUHS17NDMfx8ttLbBbsn3B6X2xuV+In 9rxE1rLBX+EoPuRbju1PzKGFAwSyxPtAbVjMTnB+mbgqVgG5MUCgetSrX4P/HHR8phBvqYTTQJ+bh idkpEP9IEjfrqIPAEIhUV0oLi+YvzReGbe6dCHnfx8OG61H1GSibCEgOLj/9/9S/L+tVUbHQ39jPM sTCmzU7xCeWr1KvBPnyK2UU7Hj72mL16lsi3vYNRmlg5hOS7xT721Bm7eEuT4lHY8Dims3XcOF738 oqbwhUJCLclzPQr29XYQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1e1kpb-0000VG-JE; Tue, 10 Oct 2017 03:03:43 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1e1knv-0007Px-PO; Tue, 10 Oct 2017 03:02:07 +0000 X-UUID: b8680eb1f87541c3b17233d1d922b63e-20171010 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1508901870; Tue, 10 Oct 2017 11:01:40 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs03n1.mediatek.inc (172.21.101.181) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 10 Oct 2017 11:01:39 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Tue, 10 Oct 2017 11:01:38 +0800 From: Chaotian Jing To: Ulf Hansson Subject: [PATCH v3 04/12] mmc: mediatek: make hs400_tune_response only for mt8173 Date: Tue, 10 Oct 2017 11:01:12 +0800 Message-ID: <1507604480-23246-5-git-send-email-chaotian.jing@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1507604480-23246-1-git-send-email-chaotian.jing@mediatek.com> References: <1507604480-23246-1-git-send-email-chaotian.jing@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-20171009_200200_368566_2746F72B X-CRM114-Status: GOOD ( 14.66 ) 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: Mark Rutland , devicetree@vger.kernel.org, srv_heupstream@mediatek.com, Catalin Marinas , Linus Walleij , Will Deacon , linux-kernel@vger.kernel.org, yong mao , Phong LE , Rob Herring , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Matthias Brugger , linux-mmc@vger.kernel.org, Chaotian Jing , Heiner Kallweit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP the origin design of hs400_tune_response is for mt8173 because of mt8173 has a special design. for doing that, we add a new member "compatible", by now it's only for mt8173. Signed-off-by: Chaotian Jing Reviewed-by: Matthias Brugger --- drivers/mmc/host/mtk-sd.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 643c795..ab2fbbb 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -300,6 +300,7 @@ struct msdc_save_para { struct mtk_mmc_compatible { u8 clk_div_bits; + bool hs400_tune; /* only used for MT8173 */ }; struct msdc_tune_para { @@ -360,18 +361,22 @@ struct msdc_host { static const struct mtk_mmc_compatible mt8135_compat = { .clk_div_bits = 8, + .hs400_tune = false, }; static const struct mtk_mmc_compatible mt8173_compat = { .clk_div_bits = 8, + .hs400_tune = true, }; static const struct mtk_mmc_compatible mt2701_compat = { .clk_div_bits = 12, + .hs400_tune = false, }; static const struct mtk_mmc_compatible mt2712_compat = { .clk_div_bits = 12, + .hs400_tune = false, }; static const struct of_device_id msdc_of_ids[] = { @@ -666,7 +671,8 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz) host->base + PAD_CMD_TUNE); } - if (timing == MMC_TIMING_MMC_HS400) + if (timing == MMC_TIMING_MMC_HS400 && + host->dev_comp->hs400_tune) sdr_set_field(host->base + PAD_CMD_TUNE, MSDC_PAD_TUNE_CMDRRDLY, host->hs400_cmd_int_delay); @@ -1594,7 +1600,8 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 opcode) struct msdc_host *host = mmc_priv(mmc); int ret; - if (host->hs400_mode) + if (host->hs400_mode && + host->dev_comp->hs400_tune) ret = hs400_tune_response(mmc, opcode); else ret = msdc_tune_response(mmc, opcode);