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path: root/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
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2023-05-16phy: qcom-snps: correct struct qcom_snps_hsphy kerneldocKrzysztof Kozlowski
Update kerneldoc of struct qcom_snps_hsphy to fix: drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c:135: warning: Function parameter or member 'update_seq_cfg' not described in 'qcom_snps_hsphy' Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20230507144818.193039-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-09-24phy: qcom-snps: Use dev_err_probe() to simplify codeYuan Can
In the probe path, dev_err() can be replaced with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. It also sets the defer probe reason which can be checked later through debugfs. Signed-off-by: Yuan Can <yuancan@huawei.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Andrew Halaney <ahalaney@redhat.com> Link: https://lore.kernel.org/r/20220922111228.36355-8-yuancan@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-09-13phy: qcom-snps: Add support for overriding phy tuning parametersKrishna Kurapati
Add support for overriding electrical signal tuning parameters for SNPS HS Phy. Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com> Reviewed-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/1662480933-12326-3-git-send-email-quic_kriskura@quicinc.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-03-02phy: qcom-snps: Add sc8280xp supportBjorn Andersson
The Qualcomm sc8280xp platform comes with a 5nm femto USB PHY which, in contrast to previously seen platforms, has the SIDDQ bit in the COMMON0 register default to high. So make the driver match on the 5nm compatible and make sure to clear the SIDDQ bit on phy_init. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220225034049.2294207-2-bjorn.andersson@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-10-26phy: qcom-snps: Correct the FSEL_MASKSandeep Maheswaram
The FSEL_MASK which selects the refclock is defined incorrectly. It should be [4:6] not [5:7]. Due to this incorrect definition, the BIT(7) in USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0 is reset which keeps PHY analog blocks ON during suspend. Fix this issue by correctly defining the FSEL_MASK. Fixes: 51e8114f80d0 ("phy: qcom-snps: Add SNPS USB PHY driver for QCOM based SOCs") Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> Link: https://lore.kernel.org/r/1635135575-5668-1-git-send-email-quic_c_sanm@quicinc.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-06-29phy: qcom-snps: Add a set mode callbackWesley Cheng
The set mode handler is used to keep track of the current role of the device. This is used for enabling certain resources within the PHY depending on if the device is behaving as a host or device. Signed-off-by: Wesley Cheng <wcheng@codeaurora.org> Link: https://lore.kernel.org/r/20200625195444.15130-3-wcheng@codeaurora.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-06-29phy: qcom-snps: Add runtime suspend and resume handlersWesley Cheng
Allow for the PHY to be put into a powered down state when possible. Add the required suspend and resume callbacks, which will determine what resources can be turned off depending on the cable status. Signed-off-by: Wesley Cheng <wcheng@codeaurora.org> Link: https://lore.kernel.org/r/20200625195444.15130-2-wcheng@codeaurora.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-05-05phy: qcom-snps: Add SNPS USB PHY driver for QCOM based SOCsWesley Cheng
This adds the SNPS FemtoPHY V2 driver used in QCOM SOCs. There are potentially multiple instances of this UTMI PHY on the SOC, all which can utilize this driver. The V2 driver will have a different register map compared to V1. Signed-off-by: Wesley Cheng <wcheng@codeaurora.org> Reviewed-by: Philipp Zabel <pza@pengutronix.de> Reviewed-by: Manu Gautam <mgautam@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/1588636467-23409-3-git-send-email-wcheng@codeaurora.org Signed-off-by: Vinod Koul <vkoul@kernel.org>