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Message-ID: <fd94578b-da5f-6820-8a56-6fba5d34b9d5@linaro.org>
Date: Mon, 31 Jul 2023 11:15:02 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>,
Bastien Nocera <hadess@...ess.net>,
Hans de Goede <hdegoede@...hat.com>,
Henrik Rydberg <rydberg@...math.org>,
Jeff LaBundy <jeff@...undy.com>
Cc: Conor Dooley <conor+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Rob Herring <robh+dt@...nel.org>, linux-input@...r.kernel.org,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v4 0/4] input: touchscreen: add initial support for Goodix
Berlin touchscreen IC
Hi,
On 29/06/2023 11:27, Neil Armstrong wrote:
> These touchscreen ICs support SPI, I2C and I3C interface, up to
> 10 finger touch, stylus and gestures events.
>
> This initial driver is derived from the Goodix goodix_ts_berlin
> available at [1] and [2] and only supports the GT9916 IC
> present on the Qualcomm SM8550 MTP & QRD touch panel.
>
> The current implementation only supports BerlinD, aka GT9916.
>
> Support for advanced features like:
> - Firmware & config update
> - Stylus events
> - Gestures events
> - Previous revisions support (BerlinA or BerlinB)
> is not included in current version.
>
> The current support will work with currently flashed firmware
> and config, and bail out if firmware or config aren't flashed yet.
>
> [1] https://github.com/goodix/goodix_ts_berlin
> [2] https://git.codelinaro.org/clo/la/platform/vendor/opensource/touch-drivers
Gentle ping,
Should I send a v5 rebased on linux-next ?
Thanks,
Neil
>
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
> Changes in v4:
> - Core updates:
> - drop kconfig depends, deps will be handled by _SPI and _I2C
> - change power_on() error labels
> - print errors on all dev_err() prints
> - remove useless default variable initialization
> - switch irq touch checksum error to dev_err()
> - add Jeff's review tag
> - I2C changes
> - change REGMAP_I2C Kconfig from depends to select
> - add Jeff's review tag
> - SPI changes
> - add select REGMAP to Kconfig
> - added GOODIX_BERLIN_ prefix to defines
> - switched from ret to error
> - add Jeff's review tag
> - Link to v3: https://lore.kernel.org/r/20230606-topic-goodix-berlin-upstream-initial-v3-0-f0577cead709@linaro.org
>
> Changes in v3:
> - Another guge cleanups after Jeff's review:
> - appended goodix_berlin_ before all defines
> - removed some unused defines
> - removed retries on most of read functions, can be added back later
> - added __le to ic_info structures
> - reworked and simplified irq handling, dropped enum and ts_event structs
> - added struct for touch data
> - simplified and cleaned goodix_berlin_check_checksum & goodix_berlin_is_dummy_data
> - moved touch_data_addr to the end of the main code_data
> - reworked probe to get_irq last and right before setip input device
> - cleaned probe by removing the "cd->dev"
> - added short paragraph to justify new driver for berlin devices
> - defined all offsets & masks
> - Added bindings review tag
> - Link to v2: https://lore.kernel.org/r/20230606-topic-goodix-berlin-upstream-initial-v2-0-26bc8fe1e90e@linaro.org
>
> Changes in v2:
> - Huge cleanups after Jeff's review:
> - switch to error instead of ret
> - drop dummy vendor/product ids
> - drop unused defined/enums
> - drop unused ic_info and only keep needes values
> - cleanup namings and use goodix_berlin_ everywhere
> - fix regulator setup
> - fix default variables value when assigned afterwars
> - removed indirections
> - dropped debugfs
> - cleaned input_dev setup
> - dropped _remove()
> - sync'ed i2c and spi drivers
> - fixed yaml bindings
> - Link to v1: https://lore.kernel.org/r/20230606-topic-goodix-berlin-upstream-initial-v1-0-4a0741b8aefd@linaro.org
>
> ---
> Neil Armstrong (4):
> dt-bindings: input: document Goodix Berlin Touchscreen IC
> input: touchscreen: add core support for Goodix Berlin Touchscreen IC
> input: touchscreen: add I2C support for Goodix Berlin Touchscreen IC
> input: touchscreen: add SPI support for Goodix Berlin Touchscreen IC
>
> .../bindings/input/touchscreen/goodix,gt9916.yaml | 95 ++++
> drivers/input/touchscreen/Kconfig | 31 ++
> drivers/input/touchscreen/Makefile | 3 +
> drivers/input/touchscreen/goodix_berlin.h | 159 ++++++
> drivers/input/touchscreen/goodix_berlin_core.c | 581 +++++++++++++++++++++
> drivers/input/touchscreen/goodix_berlin_i2c.c | 69 +++
> drivers/input/touchscreen/goodix_berlin_spi.c | 173 ++++++
> 7 files changed, 1111 insertions(+)
> ---
> base-commit: 6db29e14f4fb7bce9eb5290288e71b05c2b0d118
> change-id: 20230606-topic-goodix-berlin-upstream-initial-ba97e8ec8f4c
>
> Best regards,
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