Message ID | 20240122-ufs-reset-ensure-effect-before-delay-v4-2-6c48432151cc@redhat.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
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Mon, 22 Jan 2024 09:21:36 -0800 (PST) X-Google-Smtp-Source: AGHT+IGXXHmtJA2fouZvXWZRPuBxW0a4kvTjX4BO9HFSw11OKwZJkbRHiV8Pi9144jdwfGRsA2ozXw== X-Received: by 2002:a05:6214:1d2e:b0:684:d2a1:990f with SMTP id f14-20020a0562141d2e00b00684d2a1990fmr6930834qvd.40.1705944096647; Mon, 22 Jan 2024 09:21:36 -0800 (PST) Received: from [192.168.1.163] ([2600:1700:1ff0:d0e0::37]) by smtp.gmail.com with ESMTPSA id lf3-20020a0562142cc300b00680c25f5f06sm2567738qvb.86.2024.01.22.09.21.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 09:21:33 -0800 (PST) From: Andrew Halaney <ahalaney@redhat.com> Date: Mon, 22 Jan 2024 11:21:27 -0600 Subject: [PATCH RFC v4 02/11] scsi: ufs: qcom: Perform read back after writing REG_UFS_SYS1CLK_1US Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: <linux-arm-msm.vger.kernel.org> List-Subscribe: <mailto:linux-arm-msm+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-arm-msm+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240122-ufs-reset-ensure-effect-before-delay-v4-2-6c48432151cc@redhat.com> References: <20240122-ufs-reset-ensure-effect-before-delay-v4-0-6c48432151cc@redhat.com> In-Reply-To: <20240122-ufs-reset-ensure-effect-before-delay-v4-0-6c48432151cc@redhat.com> To: Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>, Konrad Dybcio <konrad.dybcio@linaro.org>, Manivannan Sadhasivam <mani@kernel.org>, "James E.J. Bottomley" <jejb@linux.ibm.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, Hannes Reinecke <hare@suse.de>, Janek Kotas <jank@cadence.com>, Alim Akhtar <alim.akhtar@samsung.com>, Avri Altman <avri.altman@wdc.com>, Bart Van Assche <bvanassche@acm.org>, Can Guo <quic_cang@quicinc.com> Cc: Will Deacon <will@kernel.org>, linux-arm-msm@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Andrew Halaney <ahalaney@redhat.com> X-Mailer: b4 0.12.3 |
Series |
scsi: ufs: Remove overzealous memory barriers
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expand
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diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 39eef470f8fa..0603a07a23a2 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -501,7 +501,7 @@ static int ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, * make sure above write gets applied before we return from * this function. */ - mb(); + ufshcd_readl(hba, REG_UFS_SYS1CLK_1US); } return 0;