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Thu, 27 Aug 2020 01:39:02 -0800 Received: from MTKMBS31N2.mediatek.inc (172.27.4.87) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 27 Aug 2020 02:33:12 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by MTKMBS31N2.mediatek.inc (172.27.4.87) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 27 Aug 2020 17:33:09 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 27 Aug 2020 17:33:09 +0800 From: Chun-Hung Wu To: , Jonathan Hunter , "Al Cooper" , Adrian Hunter , Florian Fainelli , , Andy Gross , Bjorn Andersson , Michal Simek , Thierry Reding , Chaotian Jing , Mao Yong , Ulf Hansson , Rob Herring , "Mark Rutland" , Matthias Brugger , Linus Walleij , Pavel Machek , "Kate Stewart" , Greg Kroah-Hartman , Martin Blumenstingl , Pan Bian , "Thomas Gleixner" , Allison Randal , "Mathieu Malaterre" , Asutosh Das , "Ritesh Harjani" , Stanley Chu , Kuohong Wang Subject: [PATCH v1 2/2] mmc: mediatek: add pre_enable() and post_disable() hook function Date: Thu, 27 Aug 2020 17:33:03 +0800 Message-ID: <1598520783-25250-3-git-send-email-chun-hung.wu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1598520783-25250-1-git-send-email-chun-hung.wu@mediatek.com> References: <1598520783-25250-1-git-send-email-chun-hung.wu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: CEDAC856A48AA8E85B313FDFD3A88ACA8C2DE2FDB18C66AA2FE8F852F30379052000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200827_054217_205200_F7DA09A1 X-CRM114-Status: GOOD ( 14.75 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com, linux-arm-msm@vger.kernel.org, Chun-Hung Wu , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org, kernel-team@android.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org CQHCI_ENABLE bit in CQHCI_CFG should be disabled after msdc_cqe_disable(), and should be enabled before msdc_ceq_enable() for MTK platform. Add hook functions for cqhci_host_ops->pre_enable() and cqhci_host_ops->post_disable(). Signed-off-by: Chun-Hung Wu Acked-by: Adrian Hunter --- drivers/mmc/host/mtk-sd.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 4e2583f..f53e11b 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -2282,6 +2282,26 @@ static void msdc_cqe_disable(struct mmc_host *mmc, bool recovery) } } +static void msdc_cqe_pre_enable(struct mmc_host *mmc) +{ + struct cqhci_host *cq_host = mmc->cqe_private; + u32 reg; + + reg = cqhci_readl(cq_host, CQHCI_CFG); + reg |= CQHCI_ENABLE; + cqhci_writel(cq_host, reg, CQHCI_CFG); +} + +static void msdc_cqe_post_disable(struct mmc_host *mmc) +{ + struct cqhci_host *cq_host = mmc->cqe_private; + u32 reg; + + reg = cqhci_readl(cq_host, CQHCI_CFG); + reg &= ~CQHCI_ENABLE; + cqhci_writel(cq_host, reg, CQHCI_CFG); +} + static const struct mmc_host_ops mt_msdc_ops = { .post_req = msdc_post_req, .pre_req = msdc_pre_req, @@ -2301,6 +2321,8 @@ static void msdc_cqe_disable(struct mmc_host *mmc, bool recovery) static const struct cqhci_host_ops msdc_cmdq_ops = { .enable = msdc_cqe_enable, .disable = msdc_cqe_disable, + .pre_enable = msdc_cqe_pre_enable, + .post_disable = msdc_cqe_post_disable, }; static void msdc_of_property_parse(struct platform_device *pdev,