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From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Igor Belwon <igor.belwon@mentallysanemainliners.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Sean Wang <sean.wang@kernel.org>
Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: Re: [PATCH 4/4] pinctrl: mediatek: Add support for MT6878 pinctrl
Date: Tue, 9 Sep 2025 09:59:10 +0200	[thread overview]
Message-ID: <e1de6c65-b002-47db-b591-18613009f5c6@collabora.com> (raw)
In-Reply-To: <20250908-mt6878-pinctrl-support-v1-4-3fb78c8ab4e8@mentallysanemainliners.org>

Il 08/09/25 21:17, Igor Belwon ha scritto:
> Add driver support for the pin controller found in the MediaTek
> Dimensity 7300 (MT6878) SoC.
> 
> Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
> ---
>   drivers/pinctrl/mediatek/Kconfig              |   10 +
>   drivers/pinctrl/mediatek/Makefile             |    1 +
>   drivers/pinctrl/mediatek/pinctrl-mt6878.c     | 1559 +++++++++++++++++
>   drivers/pinctrl/mediatek/pinctrl-mtk-mt6878.h | 2248 +++++++++++++++++++++++++
>   4 files changed, 3818 insertions(+)
> 
> diff --git a/drivers/pinctrl/mediatek/Kconfig b/drivers/pinctrl/mediatek/Kconfig
> index 5b191e12a8aa9d19f05bfbc51037aa788e9a3c36..4819617d936836eca59e8cc8c4ee8323ba92604f 100644
> --- a/drivers/pinctrl/mediatek/Kconfig
> +++ b/drivers/pinctrl/mediatek/Kconfig
> @@ -181,6 +181,16 @@ config PINCTRL_MT6797
>   	default ARM64 && ARCH_MEDIATEK
>   	select PINCTRL_MTK_PARIS
>   
> +config PINCTRL_MT6878
> +	bool "MediaTek MT6878 pin control"
> +	depends on OF
> +	depends on ARM64 || COMPILE_TEST
> +	default ARM64 && ARCH_MEDIATEK
> +	select PINCTRL_MTK_PARIS
> +	help
> +	  Say yes here to support pin controller and gpio driver
> +	  on the MediaTek MT6878 SoC.
> +
>   config PINCTRL_MT6893
>   	bool "MediaTek Dimensity MT6893 pin control"
>   	depends on OF
> diff --git a/drivers/pinctrl/mediatek/Makefile b/drivers/pinctrl/mediatek/Makefile
> index 5d4646939ba3ab3586483d36acf5cd701b3bf0dc..ae765bd999657cd887b605e201290c041efd020e 100644
> --- a/drivers/pinctrl/mediatek/Makefile
> +++ b/drivers/pinctrl/mediatek/Makefile
> @@ -23,6 +23,7 @@ obj-$(CONFIG_PINCTRL_MT6765)		+= pinctrl-mt6765.o
>   obj-$(CONFIG_PINCTRL_MT6779)		+= pinctrl-mt6779.o
>   obj-$(CONFIG_PINCTRL_MT6795)		+= pinctrl-mt6795.o
>   obj-$(CONFIG_PINCTRL_MT6797)		+= pinctrl-mt6797.o
> +obj-$(CONFIG_PINCTRL_MT6878)		+= pinctrl-mt6878.o
>   obj-$(CONFIG_PINCTRL_MT6893)		+= pinctrl-mt6893.o
>   obj-$(CONFIG_PINCTRL_MT7622)		+= pinctrl-mt7622.o
>   obj-$(CONFIG_PINCTRL_MT7623)		+= pinctrl-mt7623.o
> diff --git a/drivers/pinctrl/mediatek/pinctrl-mt6878.c b/drivers/pinctrl/mediatek/pinctrl-mt6878.c
> new file mode 100644
> index 0000000000000000000000000000000000000000..679f8cff1c516565daf9cd85f7b5036b0bcbd159
> --- /dev/null
> +++ b/drivers/pinctrl/mediatek/pinctrl-mt6878.c
> @@ -0,0 +1,1559 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 MediaTek Inc.
> + * Author: Light Hsieh <light.hsieh@mediatek.com>
> + *
> + * Copyright (C) 2025 Igor Belwon <igor.belwon@mentallysanemainliners.org>
> + */
> +
> +#include <linux/module.h>
> +#include "pinctrl-mtk-mt6878.h"
> +#include "pinctrl-paris.h"
> +
> +/* MT6878 have multiple bases to program pin configuration listed as the below:
> + * GPIO_BASE: 0x10005000
> + * IOCFG_BL_BASE: 0x11D10000
> + * IOCFG_BM_BASE: 0x11D30000
> + * IOCFG_BR_BASE: 0x11D40000
> + * IOCFG_BL1_BASE: 0x11D50000
> + * IOCFG_BR1_BASE: 0x11D60000
> + * IOCFG_LM_BASE: 0x11E20000
> + * IOCFG_LT_BASE: 0x11E30000
> + * IOCFG_RM_BASE: 0x11EB0000
> + * IOCFG_RT_BASE: 0x11EC0000
> + * _i_based could be used to indicate what base the pin should be mapped into.
> + */
> +
> +#define PIN_FIELD_BASE(s_pin, e_pin, i_base, s_addr, x_addrs, s_bit, x_bits) \
> +	PIN_FIELD_CALC(s_pin, e_pin, i_base, s_addr, x_addrs, s_bit, x_bits, \
> +			32, 0)
> +
> +#define PINS_FIELD_BASE(s_pin, e_pin, i_base, s_addr, x_addrs, s_bit, x_bits) \
> +	PIN_FIELD_CALC(s_pin, e_pin, i_base, s_addr, x_addrs, s_bit, x_bits,  \
> +			32, 1)
> +
> +static const struct mtk_pin_field_calc mt6878_pin_mode_range[] = {

The mode range can be also written simply as:


static const struct mtk_pin_field_calc mt6878_pin_mode_range[] = {
	PIN_FIELD(0, 195, 0x0300, 0x10, 0, 4),
};


> +	PIN_FIELD_BASE(0, 7, 0, 0x0300, 0x10, 0, 4),
> +	PIN_FIELD_BASE(8, 15, 0, 0x0310, 0x10, 0, 4),
> +	PIN_FIELD_BASE(16, 23, 0, 0x0320, 0x10, 0, 4),
> +	PIN_FIELD_BASE(24, 31, 0, 0x0330, 0x10, 0, 4),
> +	PIN_FIELD_BASE(32, 39, 0, 0x0340, 0x10, 0, 4),
> +	PIN_FIELD_BASE(40, 47, 0, 0x0350, 0x10, 0, 4),
> +	PIN_FIELD_BASE(48, 55, 0, 0x0360, 0x10, 0, 4),
> +	PIN_FIELD_BASE(56, 63, 0, 0x0370, 0x10, 0, 4),
> +	PIN_FIELD_BASE(64, 71, 0, 0x0380, 0x10, 0, 4),
> +	PIN_FIELD_BASE(72, 79, 0, 0x0390, 0x10, 0, 4),
> +	PIN_FIELD_BASE(80, 87, 0, 0x03a0, 0x10, 0, 4),
> +	PIN_FIELD_BASE(88, 95, 0, 0x03b0, 0x10, 0, 4),
> +	PIN_FIELD_BASE(96, 103, 0, 0x03c0, 0x10, 0, 4),
> +	PIN_FIELD_BASE(104, 111, 0, 0x03d0, 0x10, 0, 4),
> +	PIN_FIELD_BASE(112, 119, 0, 0x03e0, 0x10, 0, 4),
> +	PIN_FIELD_BASE(120, 127, 0, 0x03f0, 0x10, 0, 4),
> +	PIN_FIELD_BASE(128, 135, 0, 0x0400, 0x10, 0, 4),
> +	PIN_FIELD_BASE(136, 143, 0, 0x0410, 0x10, 0, 4),
> +	PIN_FIELD_BASE(144, 151, 0, 0x0420, 0x10, 0, 4),
> +	PIN_FIELD_BASE(152, 159, 0, 0x0430, 0x10, 0, 4),
> +	PIN_FIELD_BASE(160, 167, 0, 0x0440, 0x10, 0, 4),
> +	PIN_FIELD_BASE(168, 175, 0, 0x0450, 0x10, 0, 4),
> +	PIN_FIELD_BASE(176, 183, 0, 0x0460, 0x10, 0, 4),
> +	PIN_FIELD_BASE(184, 191, 0, 0x0470, 0x10, 0, 4),
> +	PIN_FIELD_BASE(192, 195, 0, 0x0480, 0x10, 0, 4),
> +};
> +
> +static const struct mtk_pin_field_calc mt6878_pin_dir_range[] = {

Same for direction
> +	PIN_FIELD_BASE(0, 31, 0, 0x0000, 0x10, 0, 1),
> +	PIN_FIELD_BASE(32, 63, 0, 0x0010, 0x10, 0, 1),
> +	PIN_FIELD_BASE(64, 95, 0, 0x0020, 0x10, 0, 1),
> +	PIN_FIELD_BASE(96, 127, 0, 0x0030, 0x10, 0, 1),
> +	PIN_FIELD_BASE(128, 159, 0, 0x0040, 0x10, 0, 1),
> +	PIN_FIELD_BASE(160, 191, 0, 0x0050, 0x10, 0, 1),
> +	PIN_FIELD_BASE(192, 195, 0, 0x0060, 0x10, 0, 1),
> +};
> +
> +static const struct mtk_pin_field_calc mt6878_pin_di_range[] = {

Same here again

> +	PIN_FIELD_BASE(0, 31, 0, 0x0200, 0x10, 0, 1),
> +	PIN_FIELD_BASE(32, 63, 0, 0x0210, 0x10, 0, 1),
> +	PIN_FIELD_BASE(64, 95, 0, 0x0220, 0x10, 0, 1),
> +	PIN_FIELD_BASE(96, 127, 0, 0x0230, 0x10, 0, 1),
> +	PIN_FIELD_BASE(128, 159, 0, 0x0240, 0x10, 0, 1),
> +	PIN_FIELD_BASE(160, 191, 0, 0x0250, 0x10, 0, 1),
> +	PIN_FIELD_BASE(192, 195, 0, 0x0260, 0x10, 0, 1),
> +};
> +
> +static const struct mtk_pin_field_calc mt6878_pin_do_range[] = {

And here.

> +	PIN_FIELD_BASE(0, 31, 0, 0x0100, 0x10, 0, 1),
> +	PIN_FIELD_BASE(32, 63, 0, 0x0110, 0x10, 0, 1),
> +	PIN_FIELD_BASE(64, 95, 0, 0x0120, 0x10, 0, 1),
> +	PIN_FIELD_BASE(96, 127, 0, 0x0130, 0x10, 0, 1),
> +	PIN_FIELD_BASE(128, 159, 0, 0x0140, 0x10, 0, 1),
> +	PIN_FIELD_BASE(160, 191, 0, 0x0150, 0x10, 0, 1),
> +	PIN_FIELD_BASE(192, 195, 0, 0x0160, 0x10, 0, 1),
> +};
> +
> +static const struct mtk_pin_field_calc mt6878_pin_ies_range[] = {

..snip..

> +};
> +
> +static const struct mtk_pin_field_calc mt6878_pin_smt_range[] = {

..snip..

> +static const struct mtk_pin_field_calc mt6878_pin_eh_range[] = {

This is mt6878_pin_drv_adv_range[]

> +	PIN_FIELD_BASE(19, 19, 3, 0x0030, 0x10, 0, 3),
> +	PIN_FIELD_BASE(24, 24, 5, 0x0020, 0x10, 0, 3),
> +	PIN_FIELD_BASE(25, 25, 3, 0x0030, 0x10, 3, 3),
> +	PIN_FIELD_BASE(26, 26, 3, 0x0030, 0x10, 6, 3),
> +	PIN_FIELD_BASE(52, 52, 3, 0x0030, 0x10, 12, 3),
> +	PIN_FIELD_BASE(53, 53, 3, 0x0030, 0x10, 15, 3),
> +	PIN_FIELD_BASE(55, 55, 3, 0x0030, 0x10, 9, 3),
> +	PIN_FIELD_BASE(60, 60, 8, 0x0050, 0x10, 12, 3),
> +	PIN_FIELD_BASE(61, 61, 8, 0x0050, 0x10, 15, 3),
> +	PIN_FIELD_BASE(62, 62, 8, 0x0050, 0x10, 21, 3),
> +	PIN_FIELD_BASE(63, 63, 8, 0x0050, 0x10, 18, 3),
> +	PIN_FIELD_BASE(64, 64, 8, 0x0050, 0x10, 24, 3),
> +	PIN_FIELD_BASE(65, 65, 8, 0x0050, 0x10, 27, 3),
> +	PIN_FIELD_BASE(66, 66, 8, 0x0060, 0x10, 3, 3),
> +	PIN_FIELD_BASE(67, 67, 8, 0x0060, 0x10, 0, 3),
> +	PIN_FIELD_BASE(92, 92, 8, 0x0040, 0x10, 0, 3),
> +	PIN_FIELD_BASE(93, 93, 8, 0x0040, 0x10, 3, 3),
> +	PIN_FIELD_BASE(94, 94, 8, 0x0040, 0x10, 6, 3),
> +	PIN_FIELD_BASE(95, 95, 8, 0x0040, 0x10, 9, 3),
> +	PIN_FIELD_BASE(96, 96, 8, 0x0040, 0x10, 12, 3),
> +	PIN_FIELD_BASE(125, 125, 8, 0x0050, 0x10, 9, 3),
> +	PIN_FIELD_BASE(126, 126, 8, 0x0060, 0x10, 6, 3),
> +	PIN_FIELD_BASE(127, 127, 8, 0x0060, 0x10, 9, 3),
> +	PIN_FIELD_BASE(128, 128, 8, 0x0060, 0x10, 12, 3),
> +	PIN_FIELD_BASE(129, 129, 8, 0x0040, 0x10, 15, 3),
> +	PIN_FIELD_BASE(130, 130, 8, 0x0040, 0x10, 24, 3),
> +	PIN_FIELD_BASE(131, 131, 6, 0x0030, 0x10, 12, 3),
> +	PIN_FIELD_BASE(132, 132, 6, 0x0030, 0x10, 21, 3),
> +	PIN_FIELD_BASE(133, 133, 8, 0x0040, 0x10, 18, 3),
> +	PIN_FIELD_BASE(134, 134, 8, 0x0040, 0x10, 27, 3),
> +	PIN_FIELD_BASE(135, 135, 6, 0x0030, 0x10, 15, 3),
> +	PIN_FIELD_BASE(136, 136, 6, 0x0030, 0x10, 24, 3),
> +	PIN_FIELD_BASE(137, 137, 6, 0x0030, 0x10, 18, 3),
> +	PIN_FIELD_BASE(138, 138, 6, 0x0030, 0x10, 27, 3),
> +	PIN_FIELD_BASE(139, 139, 6, 0x0030, 0x10, 0, 3),
> +	PIN_FIELD_BASE(140, 140, 6, 0x0030, 0x10, 6, 3),
> +	PIN_FIELD_BASE(141, 141, 6, 0x0030, 0x10, 3, 3),
> +	PIN_FIELD_BASE(142, 142, 6, 0x0030, 0x10, 9, 3),
> +	PIN_FIELD_BASE(143, 143, 8, 0x0040, 0x10, 21, 3),
> +	PIN_FIELD_BASE(144, 144, 8, 0x0050, 0x10, 0, 3),
> +	PIN_FIELD_BASE(145, 145, 5, 0x0020, 0x10, 3, 3),
> +	PIN_FIELD_BASE(146, 146, 5, 0x0020, 0x10, 6, 3),
> +	PIN_FIELD_BASE(147, 147, 3, 0x0030, 0x10, 18, 3),
> +	PIN_FIELD_BASE(148, 148, 3, 0x0030, 0x10, 21, 3),
> +	PIN_FIELD_BASE(149, 149, 8, 0x0050, 0x10, 3, 3),
> +	PIN_FIELD_BASE(150, 150, 8, 0x0050, 0x10, 6, 3),
> +	PIN_FIELD_BASE(156, 156, 9, 0x0020, 0x10, 0, 5),
> +	PIN_FIELD_BASE(157, 157, 9, 0x0020, 0x10, 5, 5),
> +	PIN_FIELD_BASE(158, 158, 9, 0x0020, 0x10, 10, 5),
> +	PIN_FIELD_BASE(159, 159, 9, 0x0020, 0x10, 15, 5),
> +};
> +

> +
> +static const struct mtk_eh_pin_pinmux mt6878_eh_pin_pinmux_list[] = {

This can be removed entirely

> +	PIN_MUX_EH(19, 3),
> +	PIN_MUX_EH(24, 2),
> +	PIN_MUX_EH(24, 3),
> +	PIN_MUX_EH(25, 2),
> +	PIN_MUX_EH(26, 2),
> +	PIN_MUX_EH(52, 3),
> +	PIN_MUX_EH(53, 3),
> +	PIN_MUX_EH(55, 3),
> +	PIN_MUX_EH(125, 1),
> +	PIN_MUX_EH(126, 1),
> +	PIN_MUX_EH(127, 1),
> +	PIN_MUX_EH(128, 1),
> +	PIN_MUX_EH(129, 1),
> +	PIN_MUX_EH(130, 1),
> +	PIN_MUX_EH(131, 1),
> +	PIN_MUX_EH(132, 1),
> +	PIN_MUX_EH(133, 1),
> +	PIN_MUX_EH(134, 1),
> +	PIN_MUX_EH(135, 1),
> +	PIN_MUX_EH(136, 1),
> +	PIN_MUX_EH(137, 1),
> +	PIN_MUX_EH(138, 1),
> +	PIN_MUX_EH(139, 1),
> +	PIN_MUX_EH(140, 1),
> +	PIN_MUX_EH(141, 1),
> +	PIN_MUX_EH(142, 1),
> +	PIN_MUX_EH(143, 1),
> +	PIN_MUX_EH(144, 1),
> +	PIN_MUX_EH(145, 1),
> +	PIN_MUX_EH(146, 1),
> +	PIN_MUX_EH(147, 1),
> +	PIN_MUX_EH(148, 1),
> +	PIN_MUX_EH(149, 6),
> +	PIN_MUX_EH(150, 6),
> +};
> +
> +static const char * const mt6878_pinctrl_register_base_names[] = {
> +	"gpio", "iocfg_bl", "iocfg_bm", "iocfg_br",
> +	"iocfg_bl1", "iocfg_br1", "iocfg_lm", "iocfg_lt",
> +	"iocfg_rm", "iocfg_rt",
> +};
> +
> +static const struct mtk_eint_hw mt6878_eint_hw = {
> +	.port_mask = 31,
> +	.ports     = 1,
> +	.ap_num    = 216,
> +	.db_cnt    = 36,
> +	.db_time   = debounce_time_mt6878,
> +};
> +
> +static const struct mtk_pin_reg_calc mt6878_reg_cals[PINCTRL_PIN_REG_MAX] = {
> +	[PINCTRL_PIN_REG_MODE] = MTK_RANGE(mt6878_pin_mode_range),
> +	[PINCTRL_PIN_REG_DIR] = MTK_RANGE(mt6878_pin_dir_range),
> +	[PINCTRL_PIN_REG_DI] = MTK_RANGE(mt6878_pin_di_range),
> +	[PINCTRL_PIN_REG_DO] = MTK_RANGE(mt6878_pin_do_range),
> +	[PINCTRL_PIN_REG_SR] = MTK_RANGE(mt6878_pin_dir_range),
> +	[PINCTRL_PIN_REG_SMT] = MTK_RANGE(mt6878_pin_smt_range),
> +	[PINCTRL_PIN_REG_IES] = MTK_RANGE(mt6878_pin_ies_range),
> +	[PINCTRL_PIN_REG_PU] = MTK_RANGE(mt6878_pin_pu_range),
> +	[PINCTRL_PIN_REG_PD] = MTK_RANGE(mt6878_pin_pd_range),
> +	[PINCTRL_PIN_REG_DRV] = MTK_RANGE(mt6878_pin_drv_range),
> +	[PINCTRL_PIN_REG_PUPD] = MTK_RANGE(mt6878_pin_pupd_range),
> +	[PINCTRL_PIN_REG_R0] = MTK_RANGE(mt6878_pin_r0_range),
> +	[PINCTRL_PIN_REG_R1] = MTK_RANGE(mt6878_pin_r1_range),
> +	[PINCTRL_PIN_REG_DRV_EH] = MTK_RANGE(mt6878_pin_eh_range),

[PINCTRL_PIN_REG_DRV_ADV] = MTK_RANGE(mt6878_pin_drv_adv_range),

> +	[PINCTRL_PIN_REG_RSEL] = MTK_RANGE(mt6878_pin_rsel_range),
> +};
> +
> +static const struct mtk_pin_soc mt6878_data = {
> +	.reg_cal = mt6878_reg_cals,
> +	.pins = mtk_pins_mt6878,
> +	.npins = ARRAY_SIZE(mtk_pins_mt6878),
> +	.ngrps = ARRAY_SIZE(mtk_pins_mt6878),
> +	.eint_pin = eint_pins_mt6878,
> +	.eint_hw = &mt6878_eint_hw,
> +	.nfuncs = 8,
> +	.gpio_m = 0,
> +	.base_names = mt6878_pinctrl_register_base_names,
> +	.nbase_names = ARRAY_SIZE(mt6878_pinctrl_register_base_names),
> +	.bias_set_combo = mtk_pinconf_bias_set_combo,
> +	.bias_get_combo = mtk_pinconf_bias_get_combo,
> +	.pull_type = mt6878_pull_type,

vvvvvvvvvvvvvvvvvvvvvvvvvv

> +	.eh_pin_pinmux = mt6878_eh_pin_pinmux_list,
> +	.neh_pins = ARRAY_SIZE(mt6878_eh_pin_pinmux_list),

...and this can be removed as well.

> +	.adv_drive_get = mtk_pinconf_adv_drive_get,
> +	.adv_drive_set = mtk_pinconf_adv_drive_set,
> +};

Cheers,
Angelo


      reply	other threads:[~2025-09-09  7:59 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-08 19:17 [PATCH 0/4] Add support for mt6878 pinctrl Igor Belwon
2025-09-08 19:17 ` [PATCH 1/4] dt-bindings: pinctrl: mediatek: Document MT6878 pin controller bindings Igor Belwon
2025-09-09  7:37   ` Krzysztof Kozlowski
2025-09-09 12:14     ` Igor Belwon
2025-09-08 19:17 ` [PATCH 2/4] pinctrl: mediatek: Add support for eh bit Igor Belwon
2025-09-09  7:57   ` AngeloGioacchino Del Regno
2025-09-09 11:53     ` Igor Belwon
2025-09-08 19:17 ` [PATCH 3/4] pinctrl: mediatek: Add debounce times for MT6878 Igor Belwon
2025-09-09  8:00   ` AngeloGioacchino Del Regno
2025-09-09 11:54     ` Igor Belwon
2025-09-08 19:17 ` [PATCH 4/4] pinctrl: mediatek: Add support for MT6878 pinctrl Igor Belwon
2025-09-09  7:59   ` AngeloGioacchino Del Regno [this message]

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