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[2001:b400:e2ae:cfb3:c8e7:b613:8fc3:c8f3]) by smtp.gmail.com with ESMTPSA id x7-20020a056a00270700b0062bc045bf4fsm747951pfv.19.2023.05.25.01.35.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 May 2023 01:35:21 -0700 (PDT) From: Owen Yang To: LKML Cc: Bob Moragues , Abner Yen , Doug Anderson , Matthias Kaehlcke , Stephen Boyd , Harvey , Gavin Lee , Owen Yang , Bjorn Helgaas , linux-pci@vger.kernel.org Subject: [PATCH v1] drivers: pci: quirks: Add suspend fixup for SSD on sc7280 Date: Thu, 25 May 2023 16:35:12 +0800 Message-Id: <20230525163448.v1.1.Id388e4e2aa48fc56f9cd2d413aabd461ff81d615@changeid> X-Mailer: git-send-email 2.17.1 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1766856688582091139?= X-GMAIL-MSGID: =?utf-8?q?1766856688582091139?= Implement this workaround until Qualcomm fixed the correct NVMe suspend process. Signed-off-by: Owen Yang --- drivers/pci/quirks.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f4e2a88729fd..b57876dc2624 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5945,6 +5945,16 @@ static void nvidia_ion_ahci_fixup(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, 0x0ab8, nvidia_ion_ahci_fixup); +/* In Qualcomm 7c gen 3 sc7280 platform. Some of the SSD won't enter + * the correct ASPM state properly. Therefore. Implement this workaround + * until Qualcomm fixed the correct NVMe suspend process*/ +static void phison_suspend_fixup(struct pci_dev *pdev) +{ + msleep(30); +} +DECLARE_PCI_FIXUP_SUSPEND(0x1987, 0x5013, phison_suspend_fixup); +DECLARE_PCI_FIXUP_SUSPEND(0x1987, 0x5015, phison_suspend_fixup); + static void rom_bar_overlap_defect(struct pci_dev *dev) { pci_info(dev, "working around ROM BAR overlap defect\n");