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Thu, 12 Mar 2020 05:23:54 -0800 Received: from mtkmbs05n2.mediatek.inc (172.21.101.140) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 12 Mar 2020 06:24:03 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 12 Mar 2020 21:22:47 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 12 Mar 2020 21:21:02 +0800 From: Stanley Chu To: , , , , Subject: [PATCH v3 5/8] scsi: ufs-mediatek: replace all delay places by common delay function Date: Thu, 12 Mar 2020 21:23:47 +0800 Message-ID: <20200312132350.18061-6-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200312132350.18061-1-stanley.chu@mediatek.com> References: <20200312132350.18061-1-stanley.chu@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-20200312_062400_139802_50766BC3 X-CRM114-Status: GOOD ( 10.01 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] 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_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 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: Stanley Chu , bvanassche@acm.org, andy.teng@mediatek.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org, cang@codeaurora.org, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, matthias.bgg@gmail.com, beanhuo@micron.com, linux-arm-kernel@lists.infradead.org, asutoshd@codeaurora.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org A common delay function is introduced in UFS core driver, thus ufs-mediatek can use it to replace all delay codes. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufs-mediatek.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 3b0e575d7460..0ff6781654fd 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -100,17 +100,6 @@ static int ufs_mtk_bind_mphy(struct ufs_hba *hba) return err; } -static void ufs_mtk_udelay(unsigned long us) -{ - if (!us) - return; - - if (us < 10) - udelay(us); - else - usleep_range(us, us + 10); -} - static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); @@ -123,7 +112,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) if (on) { ufs_mtk_ref_clk_notify(on, res); - ufs_mtk_udelay(host->ref_clk_ungating_wait_us); + ufshcd_wait_us(host->ref_clk_ungating_wait_us, 10, true); ufshcd_writel(hba, REFCLK_REQUEST, REG_UFS_REFCLK_CTRL); } else { ufshcd_writel(hba, REFCLK_RELEASE, REG_UFS_REFCLK_CTRL); @@ -138,7 +127,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) if (((value & REFCLK_ACK) >> 1) == (value & REFCLK_REQUEST)) goto out; - usleep_range(100, 200); + ufshcd_wait_us(100, 100, true); } while (time_before(jiffies, timeout)); dev_err(hba->dev, "missing ack of refclk req, reg: 0x%x\n", value); @@ -150,7 +139,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on) out: host->ref_clk_enabled = on; if (!on) { - ufs_mtk_udelay(host->ref_clk_gating_wait_us); + ufshcd_wait_us(host->ref_clk_gating_wait_us, 10, true); ufs_mtk_ref_clk_notify(on, res); } @@ -430,12 +419,12 @@ static void ufs_mtk_device_reset(struct ufs_hba *hba) * * To be on safe side, keep the reset low for at least 10us. */ - usleep_range(10, 15); + ufshcd_wait_us(10, 5, true); ufs_mtk_device_reset_ctrl(1, res); /* Some devices may need time to respond to rst_n */ - usleep_range(10000, 15000); + ufshcd_wait_us(10000, 5000, true); dev_info(hba->dev, "device reset done\n"); }