[PATCH v4 00/18] Add Qualcomm PMIC TPCM support

Bryan O'Donoghue
2023-03-18T12:18:38Z

v4:
- Per Rob's input the pdphy and type-c appear as stadalone blocks
inside of the PMIC declaration which is a 1:1 mapping of PMIC hardware.
The TCPM virtual device is declared at the top-level.
https://lore.kernel.org/all/YY7p7jviA3ZG05gL@robh.at.kernel.org/

- Squashes the removal of the old driver with the addition of the new. - Heikki, Gunter
https://lore.kernel.org/all/YYVHcHC1Gm92VxEM@kuha.fi.intel.com/

- Reworked Dmitry's old patch for the QMP to account for file renames and
very minimal code-drift in the interregnum.

- New yaml checks drive update of PMIC VBUS yaml

- Some housekeeping on the sc7180 yaml side. sc7180 is not supported yet.

- Expands and fixes the examples being added in the PMIC tcpm examples.

Previous set:
https://lore.kernel.org/all/20211105033558.1573552-1-bryan.odonoghue@linaro.org/

Bootable:
https://git.codelinaro.org/bryan.odonoghue/kernel/-/commits/linux-next-23-03-18-pm8150b-tcpm-qcom-wrapper-typec-mux

V3:
Rob Herrings review

- Drops use of remote-endpoint and ports to bind
tcpm to pdphy and typec replacing with phandle

- Drops pmic-pdphy-* and pmic-typec-* from interrupt names
as suggested

- Passes make dt_binding_check DT_CHECKER_FLAGS=-m

BOD
- Noticed qcom_pmic_tcpm_pdphy_enable() was missing a
regulator_disable in case of an error, added.

- qcom_pmic_tcpm_pdphy_probe()
devm_regulator_get() should come before regmap_get()
as is the case in qcom_pmic_tcpm_typec_probe()

- Fixes compatible name in qcom,pmic-typec.yaml should
have read qcom,pm8150b-typec not qcom,pm8150b-usb-typec

- Makes sure compat for core is "qcom,pm8150b-tcpm" in
docs and driver

- Drops redundant return in void qcom_pmic_tcpm_pdphy_reset_off()

Kernel Robot
- Drops unused variable debounced in qcom_pmic_tcpm_typec_get_cc()

- Drops unsused variable orientation in qcom_pmic_tcpm_typec_set_cc()

Latest bootable series can be found here:
Link: https://git.linaro.org/people/bryan.odonoghue/kernel.git/log/?h=usb-next-04-11-21-pm8150b-tcpm-v3

git diff usb-next-27-10-21-pm8150b-tcpm-v2 -- drivers/usb/typec/tcpm/qcom/
git diff usb-next-27-10-21-pm8150b-tcpm-v2 -- Documentation/devicetree/bindings/usb/qcom,pmic*

Previous set:
Link: https://lore.kernel.org/linux-usb/20211028164941.831918-1-bryan.odonoghue@linaro.org/T/#t

V2 resend:
- Adding omitted devicetree mailing list

V2:

Guenter Roeck's review
- Converts suggested qcom_pmic_tcpm_core.c into one-liners

- Adds comment on how polarity is set in set_polarity()

- Removes optional set_current_limit()

- regmap_read/regmap_write
Reviwing other pm8150b/spmi drivers I then added in checks for all
reamap_read()/regmap_write() calls.

- Fixes (type == TCPC_TX_CABLE_RESET || TCPC_TX_HARD_RESET)
thanks I definitely had the blinkers on there and didn't see that at all

- qcom_pmic_tcpm_pdphy_pd_transmit_payload()
Treats regmap_read and read value as separate error paths

- qcom_pmic_tcpm_pdphy_set_pd_rx()
Replaces boolean if/else with !on as suggested

- Returns -ENODEV not -EINVAL on dev_get_regmap() error

- qcom_pmic_tcpm_pdphy_pd_receive()
Guenter asks: "No error return ?"
bod: No we are inside an ISR here if we read data we pass that off to TCPM
if somehow we don't read the data - it is "junk" there's no value IMO
in pushing an error upwards back to the handler.

Heikki Krogerus' review
- Includes Makefile I missed adding to my git index

- Removes old Kconfig entry for remove driver

Randy Dunlap's review
- Rewords drivers/usb/typec/tcpm/Kconfig

- Drops tautology "aggregates togther"

- Corrects spelling typos

BOD's own review
- Drops redundant include of regmap.h in qcom_pmic_tcpm_core.c

- Propogates qcom_pmic_tcpm_pdphy_disable() error upwards

- Propogates pmic_pdphy_reset() error upwards

- Drops error prints in qcom_pmic_tcpm_pdphy_pd_transmit_payload()
I had these in-place during development and don't recall them being
triggered even once, they are redundant, remove.

Differences between the two can be seen by
git diff usb-next-27-10-21-pm8150b-tcpm-v2..usb-next-25-10-21-pm8150b-tcpm -- drivers/usb/typec/tcpm

Latest bootable series can be found here:
Link: https://git.linaro.org/people/bryan.odonoghue/kernel.git/log/?h=usb-next-27-10-21-pm8150b-tcpm-v2

Previous set:
Link: https://lore.kernel.org/all/20211025150906.176686-1-bryan.odonoghue@linaro.org/T/#t

V1:
This series adds a set of yaml and a driver to bind together the type-c and
pdphy silicon in qcom's pm8150b block as a Linux type-c port manager.

As part of that we retire the existing qcom-pmic-typec driver and fully
replicate its functionality inside of the new block with the additional
pdphy stuff along with it.

An additional series will follow this one for the SoC and RB5 dtsi and dts
respectively.

A bootable series can be found here

Link: https://git.linaro.org/people/bryan.odonoghue/kernel.git/log/?h=usb-next-25-10-21-pm8150b-tcpm

Bryan O'Donoghue (17):
dt-bindings: regulator: qcom,usb-vbus-regulator: Mark reg as required
dt-bindings: regulator: qcom,usb-vbus-regulator: Mark
regulator-*-microamp required
dt-bindings: phy: qcom,sc7180-qmp-usb3-dp-phy: Add orientation-switch
as optional
dt-bindings: phy: qcom,sc7180-qmp-usb3-dp-phy: Add port as an optional
dt-bindings: usb: Add qcom,pmic-typec dt-binding header
dt-bindings: usb: Add Qualcomm PMIC Type-C controller YAML schema
dt-bindings: usb: Add qcom,pmic-pdphy dt-binding header
dt-bindings: usb: Add Qualcomm PMIC PDPHY controller YAML schema
dt-bindings: usb: Add Qualcomm PMIC TCPM YAML schema
dt-bindings: mfd: qcom,spmi-pmic: Add pdphy to SPMI device types
dt-bindings: mfd: qcom,spmi-pmic: Add typec to SPMI device types
usb: typec: qcom: Add Qualcomm PMIC TCPM support
arm64: dts: qcom: pm8150b: Add a TCPM description
arm64: dts: qcom: qrb5165-rb5: Switch on Type-C VBUS boost
arm64: dts: qcom: qrb5165-rb5: Switch on basic TCPM
arm64: dts: qcom: qrb5165-rb5: Switch on TCPM usb-role-switching for
usb_1
arm64: dts: qcom: qrb5165-rb5: Switch on TCPM orientation-switch for
usb_1_qmpphy

Dmitry Baryshkov (1):
phy: qcom-qmp: Register as a typec switch for orientation detection

.../bindings/mfd/qcom,spmi-pmic.yaml | 8 +
.../phy/qcom,sc7180-qmp-usb3-dp-phy.yaml | 10 +
.../regulator/qcom,usb-vbus-regulator.yaml | 10 +-
.../bindings/usb/qcom,pmic-pdphy.yaml | 89 +++
.../bindings/usb/qcom,pmic-typec.yaml | 88 +++
.../bindings/usb/qcom,pmic-virt-tcpm.yaml | 88 +++
MAINTAINERS | 10 +
arch/arm64/boot/dts/qcom/pm8150b.dtsi | 70 ++
arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 63 +-
drivers/phy/qualcomm/Kconfig | 8 +
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 80 ++-
drivers/usb/typec/Kconfig | 13 -
drivers/usb/typec/Makefile | 1 -
drivers/usb/typec/qcom-pmic-typec.c | 261 -------
drivers/usb/typec/tcpm/Kconfig | 11 +
drivers/usb/typec/tcpm/Makefile | 1 +
drivers/usb/typec/tcpm/qcom/Makefile | 6 +
drivers/usb/typec/tcpm/qcom/qcom_pmic_pdphy.c | 605 +++++++++++++++++
drivers/usb/typec/tcpm/qcom/qcom_pmic_pdphy.h | 85 +++
drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c | 637 ++++++++++++++++++
drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.h | 163 +++++
.../usb/typec/tcpm/qcom/qcom_pmic_virt_tcpm.c | 326 +++++++++
.../dt-bindings/usb/typec/qcom,pmic-pdphy.h | 18 +
.../dt-bindings/usb/typec/qcom,pmic-typec.h | 18 +
24 files changed, 2388 insertions(+), 281 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/qcom,pmic-pdphy.yaml
create mode 100644 Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml
create mode 100644 Documentation/devicetree/bindings/usb/qcom,pmic-virt-tcpm.yaml
delete mode 100644 drivers/usb/typec/qcom-pmic-typec.c
create mode 100644 drivers/usb/typec/tcpm/qcom/Makefile
create mode 100644 drivers/usb/typec/tcpm/qcom/qcom_pmic_pdphy.c
create mode 100644 drivers/usb/typec/tcpm/qcom/qcom_pmic_pdphy.h
create mode 100644 drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c
create mode 100644 drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.h
create mode 100644 drivers/usb/typec/tcpm/qcom/qcom_pmic_virt_tcpm.c
create mode 100644 include/dt-bindings/usb/typec/qcom,pmic-pdphy.h
create mode 100644 include/dt-bindings/usb/typec/qcom,pmic-typec.h

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2.39.2