[PATCH] pinctrl: mediatek: Add support for MT8196

[Krzysztof Kozlowski]

On 11/12/2024 06:54, ot907280 wrote:
> From: Guodong Liu <guodong.liu at mediatek.corp-partner.google.com>
> 
> Add pinctrl driver for mt8196
> 
> Signed-off-by: Guodong Liu <guodong.liu at mediatek.com>
> Signed-off-by: ot907280 <ot_cathy.xu at mediatek.com>


Please use real names, not logins.

<form letter>
Please use scripts/get_maintainers.pl to get a list of necessary people
and lists to CC. It might happen, that command when run on an older
kernel, gives you outdated entries. Therefore please be sure you base
your patches on recent Linux kernel.

Tools like b4 or scripts/get_maintainer.pl provide you proper list of
people, so fix your workflow. Tools might also fail if you work on some
ancient tree (don't, instead use mainline) or work on fork of kernel
(don't, instead use mainline). Just use b4 and everything should be
fine, although remember about `b4 prep --auto-to-cc` if you added new
patches to the patchset.

You missed at least devicetree list (maybe more), so this won't be
tested by automated tooling. Performing review on untested code might be
a waste of time.

Please kindly resend and include all necessary To/Cc entries.
</form letter>


> ---
>  drivers/pinctrl/mediatek/Kconfig              |   12 +
>  drivers/pinctrl/mediatek/Makefile             |    1 +
>  drivers/pinctrl/mediatek/pinctrl-mt8196.c     | 1757 +++++++++++
>  drivers/pinctrl/mediatek/pinctrl-mtk-mt8196.h | 2791 +++++++++++++++++
>  include/dt-bindings/pinctrl/mt8196-pinfunc.h  | 1572 ++++++++++
>  5 files changed, 6133 insertions(+)
>  create mode 100644 drivers/pinctrl/mediatek/pinctrl-mt8196.c
>  create mode 100644 drivers/pinctrl/mediatek/pinctrl-mtk-mt8196.h
>  create mode 100644 include/dt-bindings/pinctrl/mt8196-pinfunc.h

Please run scripts/checkpatch.pl and fix reported warnings. Then please
run `scripts/checkpatch.pl --strict` and (probably) fix more warnings.
Some warnings can be ignored, especially from --strict run, but the code
here looks like it needs a fix. Feel free to get in touch if the warning
is not clear.



> +static const char * const mt8196_pinctrl_register_base_names[] = {
> +	"iocfg0", "iocfg_rt", "iocfg_rm1", "iocfg_rm2",
> +	"iocfg_rb", "iocfg_bm1", "iocfg_bm2", "iocfg_bm3",
> +	"iocfg_lt", "iocfg_lm1", "iocfg_lm2", "iocfg_lb1",
> +	"iocfg_lb2", "iocfg_tm1", "iocfg_tm2", "iocfg_tm3",
> +};
> +
> +static const struct mtk_pin_soc mt8196_data = {
> +	.reg_cal	= mt8196_reg_cals,
> +	.pins	= mtk_pins_mt8196,
> +	.npins	= ARRAY_SIZE(mtk_pins_mt8196),
> +	.ngrps	= ARRAY_SIZE(mtk_pins_mt8196),
> +	.nfuncs	= 8,
> +	.gpio_m	= 0,
> +	.base_names	= mt8196_pinctrl_register_base_names,
> +	.nbase_names	= ARRAY_SIZE(mt8196_pinctrl_register_base_names),
> +	.pull_type = mt8196_pull_type,
> +	.bias_set_combo	= mtk_pinconf_bias_set_combo,
> +	.bias_get_combo	= mtk_pinconf_bias_get_combo,
> +	.drive_set	= mtk_pinconf_drive_set_rev1,
> +	.drive_get	= mtk_pinconf_drive_get_rev1,
> +	.adv_drive_get	= mtk_pinconf_adv_drive_get_raw,
> +	.adv_drive_set	= mtk_pinconf_adv_drive_set_raw,
> +};
> +
> +static const struct of_device_id mt8196_pinctrl_of_match[] = {
> +	{ .compatible = "mediatek,mt8196-pinctrl", .data = &mt8196_data },


Please run scripts/checkpatch.pl and fix reported warnings. Then please
run `scripts/checkpatch.pl --strict` and (probably) fix more warnings.
Some warnings can be ignored, especially from --strict run, but the code
here looks like it needs a fix. Feel free to get in touch if the warning
is not clear.

> +	{ }
> +};
> +
> +static struct platform_driver mt8196_pinctrl_driver = {
> +	.driver = {
> +		.name = "mt8196-pinctrl",
> +		.of_match_table = mt8196_pinctrl_of_match,
> +		.pm = &mtk_paris_pinctrl_pm_ops,
> +	},
> +	.probe = mtk_paris_pinctrl_probe,
> +};
> +
> +static int __init mt8196_pinctrl_init(void)
> +{
> +	return platform_driver_register(&mt8196_pinctrl_driver);
> +}
> +arch_initcall(mt8196_pinctrl_init);
> +
> +MODULE_LICENSE("GPL");


...

> +#endif /* __PINCTRL_MTK_MT8196_H */
> diff --git a/include/dt-bindings/pinctrl/mt8196-pinfunc.h b/include/dt-bindings/pinctrl/mt8196-pinfunc.h
> new file mode 100644
> index 000000000000..717351b12255
> --- /dev/null
> +++ b/include/dt-bindings/pinctrl/mt8196-pinfunc.h
> @@ -0,0 +1,1572 @@
> +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
> +/*
> + * Copyright (C) 2024 Mediatek Inc.
> + * Author: Guodong Liu <Guodong.Liu at mediatek.com>
> + */
> +
> +#ifndef __MT8196_PINFUNC_H
> +#define __MT8196_PINFUNC_H
> +
> +#include <dt-bindings/pinctrl/mt65xx.h>
> +
> +#define PINMUX_GPIO0__FUNC_GPIO0 (MTK_PIN_NO(0) | 0)
> +#define PINMUX_GPIO0__FUNC_DMIC1_CLK (MTK_PIN_NO(0) | 1)
> +#define PINMUX_GPIO0__FUNC_SPI3_A_MO (MTK_PIN_NO(0) | 3)
> +#define PINMUX_GPIO0__FUNC_FMI2S_B_LRCK (MTK_PIN_NO(0) | 4)
> +#define PINMUX_GPIO0__FUNC_SCP_DMIC1_CLK (MTK_PIN_NO(0) | 5)
> +#define PINMUX_GPIO0__FUNC_TP_GPIO14_AO (MTK_PIN_NO(0) | 6)


These aren't really bindings. If you disagree, point me to the usage in
the driver.



Best regards,
Krzysztof