The MSM8996 platform has registers setup different to the rest of QMP v3
USB platforms. It has PCS region at 0x600 and no PCS_MISC region, while
other platforms have PCS region at 0x800 and PCS_MISC at 0x600. This
results in the malfunctioning USB host on some of the platforms. The
commit f74c35b630 ("phy: qcom-qmp-usb: fix register offsets for
ipq8074/ipq6018") fixed the issue for IPQ platforms, but missed the
SDM845 which has the same register layout.
To simplify future platform addition and to make the driver more future
proof, rename qmp_usb_offsets_v3 to qmp_usb_offsets_v3_msm8996 (to mark
its peculiarity), rename qmp_usb_offsets_ipq8074 to qmp_usb_offsets_v3
and use it for SDM845 platform.
Fixes: 2be22aae6b ("phy: qcom-qmp-usb: populate offsets configuration")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240213133824.2218916-1-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Commit 2be22aae6b ("phy: qcom-qmp-usb: populate offsets configuration")
introduced register offsets to the driver but for ipq8074/ipq6018 they do
not match what was in the old style device tree. Example from old
ipq6018.dtsi:
<0x00078200 0x130>, /* Tx */
<0x00078400 0x200>, /* Rx */
<0x00078800 0x1f8>, /* PCS */
<0x00078600 0x044>; /* PCS misc */
which would translate to:
{.., .pcs = 0x800, .pcs_misc = 0x600, .tx = 0x200, .rx = 0x400 }
but was translated to:
{.., .pcs = 0x600, .tx = 0x200, .rx = 0x400 }
So split usb_offsets and fix USB initialization for IPQ8074 and IPQ6018.
Tested only on IPQ6018
Fixes: 2be22aae6b ("phy: qcom-qmp-usb: populate offsets configuration")
Signed-off-by: Mantas Pucka <mantas@8devices.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/1706026160-17520-2-git-send-email-mantas@8devices.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
For the existing PHYs for new binding we are going to drop ref_clk_src
clock and always use ref clock. Rather than introducing additional code
to handle legacy vs current bindings (and clock names), use
devm_clk_bulk_get_optional() when new bindings are used and
devm_clk_bulk_get_all() when legacy bindings are in place.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230824211952.1397699-3-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for drivers/phy/phy-can-transceiver.c
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20230714174841.4061919-1-robh@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
When adding support for some of the platforms (sc7180, sc8180x, sdm845,
sm8[1234]50), we added USB PHYs for the combo USB+DP QMP PHYs. Now all
such usecases were migrated to use USB+DP Combo driver. To simplify the
qcom-qmp-usb PHY driver split the legacy USB+dp_com support into a
separate driver.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230531023415.1209301-6-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Add support for the new qcm2290 / sm6115 binding.
The USB QMP phy on these devices supports 2 lanes. Note that the
binding now does not describe every register subregion and instead
the driver holds the corresponding offsets.
While at it also include support for PCS_MISC region which was left
out earlier.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Link: https://lore.kernel.org/r/20230516150511.2346357-3-bhupesh.sharma@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The sdx64 uniphy gen3x1 PHY references the qmp_v4_usb3phy_regs_layout
while the PHY itself uses v5 regs. While there are only minor
differences between v4 and v5 regs and none of them concerns registers
mentions in regs_layout, switch the PHY to use
qmp_v5_usb3phy_regs_layout, to remove possible confusion.
Fixes: 14d98d3bf7 ("phy: qcom-qmp-usb: fix regs layout arrays")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230113212138.421583-2-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The source clock for the reference clock is not used by the PHY directly
and should not be described by the devicetree (instead this relationship
should be modelled in the clock driver).
Drop the driver management of the reference-clock source for SC8280XP.
Once the other clock drivers have been updated, the corresponding change
can be done also for the other QMP v4 platforms.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221111093857.11360-3-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Add support for the new SC8280XP binding.
Note that the binding does not try to describe every register subregion
and instead the driver holds the corresponding offsets. This includes
the PCS_USB region which was initially overlooked.
Note that the driver will no longer accept the old binding due to the
fixed "phy_phy" reset name.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221028160435.26948-14-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Since the QMP driver split there will be at most a single child node so
drop the obsolete iteration construct.
While at it, drop the verbose error logging that would have been
printed also on probe deferrals.
Note that there's no need to check if there are additional child nodes
(the kernel is not a devicetree validator), but let's return an error if
there are no child nodes at all for now.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221028160435.26948-7-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The PCS_USB register block lives at an offset of 0x1000 from the PCS
region on SC8280XP so add the missing offset to avoid corrupting
unrelated registers on runtime suspend.
Note that the current binding is broken as it does not describe the
PCS_USB region and the PCS register size does not cover PCS_USB and the
regions in between. As Linux currently maps full pages, simply adding
the offset to driver works until the binding has been fixed.
Fixes: c0c7769cda ("phy: qcom-qmp: Add SC8280XP USB3 UNI phy")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221028160435.26948-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
According to the kernel 4.4 sources from NHSS.QSDK.9.0.2 and according
to hardware docs, the PHY registers layout used for IPQ8074 USB3 PHY is
incorrect. This platform uses offset 0x174 for the PCS_STATUS register,
0xd8 for PCS_AUTONOMOUS_MODE_CTRL, etc.
Correct the PHY registers layout.
Fixes: 94a407cc17 ("phy: qcom-qmp: create copies of QMP PHY driver")
Fixes: 507156f5a9 ("phy: qcom-qmp: Add USB QMP PHY support for IPQ8074")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Kathiravan T<quic_kathirav@quicinc.com>
Link: https://lore.kernel.org/r/20220929190017.529207-1-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
