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J . Bottomley" , "Martin K . Petersen" Cc: Can Guo , Jaegeuk Kim , Kiwoong Kim , Avri Altman , Adrian Hunter , Christoph Hellwig , Bart Van Assche , jongmin jeong , Gyunghoon Kwon , linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org, Chanho Park Subject: [PATCH v2 02/15] scsi: ufs: add quirk to enable host controller without ph configuration Date: Wed, 14 Jul 2021 16:11:18 +0900 Message-Id: <20210714071131.101204-3-chanho61.park@samsung.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210714071131.101204-1-chanho61.park@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrAJsWRmVeSWpSXmKPExsWy7bCmqa5937sEg32LjC1OPlnDZvFg3jY2 i5c/r7JZTPvwk9ni0/plrBaX92tb9Ox0tjg9YRGTxZP1s5gtFt3YxmSx8pqFxfnzG9gtbm45 ymIx4/w+Jovu6zvYLJYf/8fkIOBx+Yq3x+W+XiaPzSu0PBbvecnksWlVJ5vHhEUHGD0+Pr3F 4tG3ZRWjx+dNch7tB7qZAriicmwyUhNTUosUUvOS81My89JtlbyD453jTc0MDHUNLS3MlRTy EnNTbZVcfAJ03TJzgP5QUihLzCkFCgUkFhcr6dvZFOWXlqQqZOQXl9gqpRak5BQYGhboFSfm Fpfmpesl5+daGRoYGJkCVSbkZDRe28dacJ634sjtc8wNjEu4uxg5OSQETCR+zXnA1sXIxSEk sINRYueRI0wQzidGicYlexghnM+MEj+ePGWDaelb95YVIrGLUeL9nW4WCOcjo8StuQeZQarY BHQltjx/BdYuAjJ41eK7YFXMAieZJU4vOMgOUiUskCzxevMPRhCbRUBV4ueayWA7eAXsJeZ8 O8wIsU9e4tSyg0wgNqeAg8TBDR8YIWoEJU7OfMICYjMD1TRvnc0MskBC4ASHxM+7X5ghml0k Zj9bxQ5hC0u8Or4FypaSeNnfxg7R0M0o0froP1RiNaNEZ6MPhG0v8Wv6FqBPOYA2aEqs36UP YkoIKEscuQW1l0+i4/Bfdogwr0RHmxBEo7rEge3TWSBsWYnuOZ9ZIUo8JDZczoIE1mRGiY5X +9kmMCrMQvLNLCTfzELYu4CReRWjWGpBcW56arFRgSFyHG9iBCdtLdcdjJPfftA7xMjEwXiI UYKDWUmEd6nR2wQh3pTEyqrUovz4otKc1OJDjKbAsJ7ILCWanA/MG3kl8YamRmZmBpamFqZm RhZK4rwc7IcShATSE0tSs1NTC1KLYPqYODilGph2n7nOWibY8npxP7PFVy3TU9zBpwq258+7 9eeNoo6ZwlzJIidJn4Z/Oumnq7ZoKxsGxbTJh8awhkUq2H8Wl47/xM471fAH2/Y7NievnvCw nvP4UlWM57qec4Fl2lnrVPYv5XynKfX3K8/NfddPRynPX3VxTo/JZfuJ3CKyPem7j7zOFJv8 1/mQZnRSa+ua2WGKye+Uv4u/6BS6JCmqP3PbB6sXy/vX92m9nXn+hOSvNb0JHc/fKvxtuuW4 +pPdB2ZrGQa+jIf2c92+Bumce1kv9Y+jtueWQKPeQv4FG7dfYtljo3nM49BOu8vVBcFZs4qf ftN4qPLh0T+erVLi8vO1T1n5H1m9hkHSdZuN7j4lluKMREMt5qLiRAC2AIXHYwQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupikeLIzCtJLcpLzFFi42LZdlhJXteu712Cwbk+A4uTT9awWTyYt43N 4uXPq2wW0z78ZLb4tH4Zq8Xl/doWPTudLU5PWMRk8WT9LGaLRTe2MVmsvGZhcf78BnaLm1uO sljMOL+PyaL7+g42i+XH/zE5CHhcvuLtcbmvl8lj8wotj8V7XjJ5bFrVyeYxYdEBRo+PT2+x ePRtWcXo8XmTnEf7gW6mAK4oLpuU1JzMstQifbsErozGa/tYC87zVhy5fY65gXEJdxcjJ4eE gIlE37q3rF2MXBxCAjsYJSaemcoCkZCVePZuBzuELSxxv+UIVNF7Ronr77azgiTYBHQltjx/ xQiSEBHYxShx+MxhdhCHWeAys8S3aVeYQaqEBRIldpxcBmazCKhK/FwzmQ3E5hWwl5jz7TAj xAp5iVPLDjKB2JwCDhIHN3wAiwsB1fzbthqqXlDi5MwnYOcxA9U3b53NPIFRYBaS1CwkqQWM TKsYJVMLinPTc4sNC4zyUsv1ihNzi0vz0vWS83M3MYKjS0trB+OeVR/0DjEycTAeYpTgYFYS 4V1q9DZBiDclsbIqtSg/vqg0J7X4EKM0B4uSOO+FrpPxQgLpiSWp2ampBalFMFkmDk6pBqao WRc/rNXr3m/6TH/dybR7F5/pumzZcbd1jc7jnr/9LEvPnO5Lebrn6rtLj6Yuf8M0e/3+w+mC TxpfcReXMNSo5a5KZlL1EJ7HfHbLf+d9Okq1oYeehisabrgfKf4igkE5lrnjtWyLx2XZfwX/ bLLzcutfThHsy1JJmM/SnT7b9n3mEf/Ge7uWSziY57XecUw487hOImfDQr/zTUsdK38r/3Qw Pa5xu0XqW27uzDv2/9XUS3um8bEtFrJyemHEP2OCjDOD4flpoYyWFQenPZlest97aeJkm4R9 vKEW3oe+qzxIigtT/qv5477ZNodpySYsV+QvCVW35IS5Z3AdLepm++A9e4tWbrbYo426QUos xRmJhlrMRcWJAKZAMCQdAwAA X-CMS-MailID: 20210714071158epcas2p29900b577a489b760a1e67eba976fb815 X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210714071158epcas2p29900b577a489b760a1e67eba976fb815 References: <20210714071131.101204-1-chanho61.park@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: jongmin jeong samsung ExynosAuto SoC has two types of host controller interface to support the virtualization of UFS Device. One is the physical host(PH) that the same as conventaional UFSHCI, and the other is the virtual host(VH) that support data transfer function only. In this structure, the virtual host does not support like device management. This patch skips the physical host interface configuration part that cannot be performed in the virtual host. Suggested-by: Alim Akhtar Signed-off-by: jongmin jeong Signed-off-by: Chanho Park --- drivers/scsi/ufs/ufshcd.c | 3 +++ drivers/scsi/ufs/ufshcd.h | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9702086e9860..0df337aa1e6f 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -7988,6 +7988,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async) if (ret) goto out; + if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION) + goto out; + /* Debug counters initialization */ ufshcd_clear_dbg_ufs_stats(hba); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index e67b1fcfe1a2..e18b12028796 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -573,6 +573,12 @@ enum ufshcd_quirks { * support UIC command */ UFSHCD_QUIRK_BROKEN_UIC_CMD = 1 << 15, + + /* + * This quirk needs to be enabled if the host controller cannot + * support physical host configuration. + */ + UFSHCD_QUIRK_SKIP_PH_CONFIGURATION = 1 << 16, }; enum ufshcd_caps {