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Add SM8550 specific register layout and table configs.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230208183421.2874423-7-abel.vesa@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The new SM8550 SoC bumps up the HW version of QMP phy to v6 for USB.
Add the new PCS USB specific offsets in a dedicated header file.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20230208183421.2874423-5-abel.vesa@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Copy the USB tables from the QMP USB3 PHY driver and add the
missing DP tables from downstream to enable USB3/DP on
the SM8350 and SM8450 platforms.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230206-topic-sm8350-upstream-usb-dp-combo-phy-v1-2-ed849ae6b849@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add the tables and config for the combo phy found on SM6350.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230120-sm6350-usbphy-v4-2-4d700a90ba16@fairphone.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Use symbolic names for the values inside reg layout arrays. New register
names are added following the PCS register layout that is used by the
particular PHY.
Note: ipq8074 tables appear to use a mixture of v2 and v3 registers.
This might need additional fixes.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230113212102.421491-2-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The QPHY_PCS_LFPS_RXTERM_IRQ_STATUS register is not used, remove it from
register layout.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230113212102.421491-1-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Remove QMP PHY type-specific headers inclusion from the common header
and move them to the specific PHY drivers to cleanup the namespaces used
by different drivers.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221110192248.873973-14-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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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.
Also note that (possibly) unlike on earlier platforms, the TX registers
are used by both the USB and DP implementation.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-14-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The DP_PHY registers have erroneously been referred to as "PCS"
registers since DisplayPort support was added to the QMP drivers
(including in the devicetree binding).
Rename the corresponding pointer to match the register names.
Note that the repeated "dp" in the field name is intentional and this DP
register block is called "DP_PHY" (not just "PHY").
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-13-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The common registers are shared by the USB and DP parts of the PHY so
drop the misleading "dp" prefix from the corresponding pointers.
Note that the "DP" prefix could also be dropped from the corresponding
defines, but leave that in place 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/20221121085058.31213-12-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Clean up the DP clock callbacks somewhat by dropping the redundant
"qcom" prefix and removing line breaks after type specifiers.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-11-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for supporting devicetree bindings which do not use child
nodes, separate clock registration from clock-provider registration.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-10-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for supporting devicetree bindings which do not use child
nodes, add a clock registration helper to handle the registration of
both the USB and DP clocks.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-9-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Since the QMP driver split, there is no reason to allocate the
fixed-rate pipe clock structure separately from the driver data.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-8-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Drop the unnecessary DP clock structure and instead store the clocks
directly in the driver data.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-7-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for supporting devicetree bindings which do not use child
nodes, generate also the USB3 pipe clock name based on the platform
device name as is done for the DP clocks.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-6-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for supporting devicetree bindings which do not use child
nodes, move the PHY creation to probe() proper and parse the serdes,
dp_com and dp_serdes resources in a dedicated legacy devicetree helper.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-5-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The source clock for the reference clock should not be described by the
devicetree and instead this relationship should be modelled in the clock
driver.
Drop the management of the source clock from the driver for SC8180X and
SC8280XP. Note that support for the former is not yet in mainline.
Also note that the binding has never been updated to describe the v4
clocks for SC8180X.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221121085058.31213-4-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Clean up and unify the DP callbacks by dropping the redundant "qcom" and
"phy" prefix and infix and by using a common naming scheme ("qmp" +
version + callback name).
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-23-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Stop abusing the driver data pointer and instead pass the driver state
structure directly to the initialisation helpers during probe.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-22-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Since the QMP driver split there will be precisely two child nodes 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 is no need to check if there are additional child nodes
(the kernel is not a devicetree validator), but let's return an error if
either child node is missing.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-21-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The QMP combo driver manages a single PHY (even if it provides two
interfaces for USB and DP, respectively) so merge the old qcom_qmp and
qmp_phy structures and drop the PHY array.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-20-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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It does not really make any sense to keep separate configuration
structures for the USB and DP parts of the same PHY so merge them.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-19-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Since the QMP driver split there is really no need for the 'lanes'
configuration parameter as all of these USB-C PHYs support dual-lane
SuperSpeed USB and quad-lane (uni-directional) DP (even if the driver
still only supports CC1 orientation using lanes 2 and 3).
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221114110621.4639-18-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for merging the USB and DP configurations, add dedicated
pointers for the DP serdes and tx tables to the configurations.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-17-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for merging the USB and DP configurations, drop the
"combo" infix from the SC8280XP combined configuration for consistency
with the other platforms.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-16-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for merging the USB and DP configurations, align the
initialisations of the DP function pointers.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-15-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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In preparation for merging the driver data, add separate iomem pointers
for the DP part of the PHY.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-14-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Separate the devicetree parsing of the USB and DP child nodes in two
dedicated helpers in preparation for merging the driver data.
Note that only the USB part of the PHY has a pipe clock and that the DP
implementation only uses the tx/tx2 and pcs register regions.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-13-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Clean up serdes initialisation somewhat by making the current helper a
dedicated helper for the DP part of the PHY.
Note that no error is currently returned for non-supported link rates.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-12-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Separate the USB and DP power-on and power-off operations in two
dedicated implementations.
Note that the pipe clock is only used by the USB part of the PHY and
that no DP configuration has a pcs (or rx) table or has has_pwrdn_delay
set.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-11-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Rename the configure and calibrate DP PHY ops using the common prefix
for consistency.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-10-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Separate the USB and DP init and exit operations by calling the common
initialisation code directly from the USB operation and adding a "dp"
infix to the DP callbacks.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-9-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Drop the unnecessary (verbose) debug message from the init PHY op.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-8-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add a "usb" infix to the USB PHY operation functions and name them
after the corresponding operations (e.g. "init" rather than "enable").
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-7-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The set-mode operation is currently only used by the USB part of the
PHY so drop the corresponding callback from the DP PHY ops.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-6-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Rename the PHY operation structures so that they have a "phy_ops" suffix
and move them next to the implementation.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-5-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Move the PM ops structure next to the implementation to keep the driver
callbacks grouped.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-4-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Move the device-id table after probe() and next to the driver structure
to keep the driver callback functions grouped together.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-3-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Sort the device-id table by compatible string to make it easier to find
and add new entries.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114110621.4639-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Commit 52e013d0bffa ("phy: qcom-qmp: Add support for DP in USB3+DP combo
phy") added support for the DisplayPort part of QMP PHYs but
unfortunately did so by duplicating parts of the shared configuration,
something which has lead to subtle bugs depending on probe order.
As the resources have always been requested based on the USB
configuration, make sure to not rely on fields from the DP configuration
when using them (e.g. in case they get out of sync) and remove the now
unused fields from the DP configurations.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114081346.5116-7-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Drop the confused runtime-suspend type check which effectively broke
runtime PM if the DP child node happens to be parsed before the USB
child node during probe (e.g. due to order of child nodes in the
devicetree).
Instead use the new driver data USB PHY pointer to access the USB
configuration and resources.
Fixes: 52e013d0bffa ("phy: qcom-qmp: Add support for DP in USB3+DP combo phy")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114081346.5116-6-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The PHY is powered on during phy-init by setting the SW_PWRDN bit in the
COM_POWER_DOWN_CTRL register and then setting the same bit in the in the
PCS_POWER_DOWN_CONTROL register that belongs to the USB part of the
PHY.
Currently, whether power on succeeds depends on probe order and having
the USB part of the PHY be initialised first. In case the DP part of the
PHY is instead initialised first, the intended power on of the USB block
results in a corrupted DP_PHY register (e.g. DP_PHY_AUX_CFG8).
Add a pointer to the USB part of the PHY to the driver data and use that
to power on the PHY also if the DP part of the PHY is initialised first.
Fixes: 52e013d0bffa ("phy: qcom-qmp: Add support for DP in USB3+DP combo phy")
Cc: stable@vger.kernel.org # 5.10
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114081346.5116-5-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The SC8180X has two resets but the DP configuration erroneously
described only one.
In case the DP part of the PHY is initialised before the USB part (e.g.
depending on probe order), then only the first reset would be asserted.
Fixes: 1633802cd4ac ("phy: qcom: qmp: Add SC8180x USB/DP combo")
Cc: stable@vger.kernel.org # 5.15
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114081346.5116-4-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The SDM845 has two resets but the DP configuration erroneously described
only one.
In case the DP part of the PHY is initialised before the USB part (e.g.
depending on probe order), then only the first reset would be asserted.
Add a dedicated configuration for SDM845 rather than reuse the
incompatible SC7180 configuration.
Fixes: d88497fb6bbd ("phy: qualcomm: phy-qcom-qmp: add support for combo USB3+DP phy on SDM845")
Cc: stable@vger.kernel.org # 6.1
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114081346.5116-3-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The SM8250 only uses three clocks but the DP configuration erroneously
described four clocks.
In case the DP part of the PHY is initialised before the USB part, this
would lead to uninitialised memory beyond the bulk-clocks array to be
treated as a clock pointer as the clocks are requested based on the USB
configuration.
Fixes: aff188feb5e1 ("phy: qcom-qmp: add support for sm8250-usb3-dp phy")
Cc: stable@vger.kernel.org # 5.13
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221114081346.5116-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Merge the fixes to next as both carry qmp-phy patches
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Commit fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate
PCS_USB region") started treating the PCS_USB registers as potentially
separate from the PCS registers but used the wrong base when no PCS_USB
offset has been provided.
Fix the PCS_USB base used at runtime resume to prevent dereferencing a
NULL pointer on platforms that do not provide a PCS_USB offset (e.g.
SC7180).
Fixes: fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate PCS_USB region")
Cc: stable@vger.kernel.org # 5.20
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20221026162116.26462-1-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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All USB PHYs need to start and stop the SerDes and PCS so drop the
start-ctrl abstraction which is no longer needed since the QMP driver
split.
Similarly, drop the pwrdn-ctrl abstraction which also is not needed
since the split.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221012085002.24099-15-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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It typically takes between one and two milliseconds for the PHY to
become ready after starting it. Increase the tight 3--10 us polling
period to the more reasonable 51--200 us.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221012085002.24099-9-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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