2023-11-29 04:22:40

by Fenglin Wu

[permalink] [raw]
Subject: Re: [PATCH RESEND v7 0/3] Add support for vibrator in multiple PMICs

Hi Dmitry Torokhov,

Can you help to review the series of the changes?
I knew that you left comment in patch V6 about moving shift and mask
into a chip-specific data structure to avoid defining 'hw_type'.
Actually 'hw_type' is added here to differentiate the SSBI vibrator
module which doesn't need to read the base address from the DT and add
it up in register read/write access, while SPMI vibrators in different
PMICs may be the same HW but just with different base address, and we
can use device compatibles instead of adding the chip-specific data
structure for each of them by just updating the base address. See
discussion here for more details:
https://lore.kernel.org/linux-arm-msm/[email protected]/

I also responded here that having 'hw_type' would help us with a cleaner
code logic instead of checking specific reg/mask for particular
operations:
https://lore.kernel.org/linux-arm-msm/[email protected]/

Let me know what's your final suggestion, if you insist that I should
move the reg/mask/shift in the chip-specific data structure, I can
update it even it won't be as clean as what it looks right now.
Thanks

Fenglin

On 11/8/2023 3:36 PM, Fenglin Wu via B4 Relay wrote:
> Add SW support for the vibrator module inside PMI632, PM7250B, PM7325B, PM7550BA.
> It is very similar to the vibrator module inside PM8916 which is supported in
> pm8xxx-vib driver but just the drive amplitude is controlled with 2 registers,
> and the register base offset in each PMIC is different.
>
> Changes in v7;
> 1. Fix a typo: SSBL_VIB_DRV_REG --> SSBI_VIB_DRV_REG
> 2. Move the hw_type switch case in pm8xxx_vib_set() to the refactoring
> change.
>
> Changes in v6:
> 1. Add "qcom,pmi632-vib" as a standalone compatible string.
>
> Changes in v5:
> 1. Drop "qcom,spmi-vib-gen2" generic compatible string as requested
> and use device specific compatible strings only.
>
> Changes in v4:
> 1. Update to use the combination of the HW type and register offset
> as the constant match data, the register base address defined in
> 'reg' property will be added when accessing SPMI registers using
> regmap APIs.
> 2. Remove 'qcom,spmi-vib-gen1' generic compatible string.
>
> Changes in v3:
> 1. Refactor the driver to support different type of the vibrators with
> better flexibility by introducing the HW type with corresponding
> register fields definitions.
> 2. Add 'qcom,spmi-vib-gen1' and 'qcom,spmi-vib-gen2' compatible
> strings, and add PMI632, PM7250B, PM7325B, PM7550BA as compatbile as
> spmi-vib-gen2.
>
> Changes in v2:
> Remove the "pm7550ba-vib" compatible string as it's compatible with pm7325b.
>
> Fenglin Wu (3):
> input: pm8xxx-vib: refactor to easily support new SPMI vibrator
> dt-bindings: input: qcom,pm8xxx-vib: add new SPMI vibrator module
> input: pm8xxx-vibrator: add new SPMI vibrator support
>
> .../bindings/input/qcom,pm8xxx-vib.yaml | 16 +-
> drivers/input/misc/pm8xxx-vibrator.c | 171 ++++++++++++------
> 2 files changed, 132 insertions(+), 55 deletions(-)
>
> --
> 2.25.1
>
> ---
> Fenglin Wu (3):
> input: pm8xxx-vib: refactor to easily support new SPMI vibrator
> dt-bindings: input: qcom,pm8xxx-vib: add new SPMI vibrator module
> input: pm8xxx-vibrator: add new SPMI vibrator support
>
> .../devicetree/bindings/input/qcom,pm8xxx-vib.yaml | 16 +-
> drivers/input/misc/pm8xxx-vibrator.c | 170 ++++++++++++++-------
> 2 files changed, 131 insertions(+), 55 deletions(-)
> ---
> base-commit: 650cda2ce25f08e8fae391b3ba6be27e7296c6a5
> change-id: 20230925-pm8xxx-vibrator-62df3df46a6c
>
> Best regards,