Set the get_pinconf functions for the mt8189 pinctrl driver. This will
append pinconf bias info to the output of the pinmux status command.
This is useful for debugging pin configuration issues.

Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260330-pinctrl-mtk-fix-mt8189-v2-4-05a737ec623d@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Add functionality to be able to print pin bias settings along with the
pinmux setting.

This can be useful to debug why pins might not be working correctly.

Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260330-pinctrl-mtk-fix-mt8189-v2-3-05a737ec623d@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Fix setting pinconf bias for MT8189.

Using mtk_pinconf_bias_set_v1() was wrong because MT8189 does not have
PULLEN/PULLSEL registers. It has PU and PD registers for most pins.
MSDC pins need special handling since they have PUPD/R1/R0 registers.
I2C pins need special handling since they have PU/PD/RSEL registers.
New groups are added for MSDC and I2C pins and the bias_set callback
is now set appropriately for all groups.

A new table is needed for the RSEL registers since those were missing.

Some new macros are introduced to avoid repeating the same info many
times in MTK_TYPED_PIN(). This also fixes the semantically incorrect
use of DRV_GRPX for the IO_TYPE_GRPX field.

Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260330-pinctrl-mtk-fix-mt8189-v2-2-05a737ec623d@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Add a new PINCTRL_PIN_REG_RSEL register type and a new function
mtk_pinconf_bias_set_pu_pd_rsel() to handle setting it.

Some MediaTek SoCs have a pin configuration register called RSEL that
sets the resistance value for bias pullup/pulldown.

Link: https://patch.msgid.link/20260330-pinctrl-mtk-fix-mt8189-v2-1-05a737ec623d@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Commit f4df9f53b7a9 ("pinctrl: mediatek: Bind gpio while binding pinctrl")
refactored pinctrl-mtk-common.c and the SoC-specific drivers to register
the gpiochip during the bind phase instead of probe. As part of this
change, each SoC driver must implement a bind callback.

The drivers recently added for mt8188, mt8189, mt8195 and mt8365 do not
define this callback, which prevents the gpiochip from being registered
properly.

Add the missing bind callback to these drivers.

Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20260312-pinctrl-mtk-bind-gpio-v1-1-21b8968902ed@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Add pinctrl support for mt8189.

Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Co-developed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260209-mtk-pinctl-mt8189-v1-3-a7a3069eda6c@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Increase the maximum number of base addresses that can be handled by the
mediatek pinctrl driver from 10 to 15. This is needed for the MT8189
which has 15 base addresses.

Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260209-mtk-pinctl-mt8189-v1-2-a7a3069eda6c@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

Add a bounds check on the number of base addresses to prevent
out-of-bounds access to the priv->base array.

Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://patch.msgid.link/20260209-mtk-pinctl-mt8189-v1-1-a7a3069eda6c@baylibre.com
Signed-off-by: David Lechner <dlechner@baylibre.com>

The MT798x series SoCs have IES regiter definitions. They should
belong to the pinctrl v1 revision.

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>

Add support for MT8195 pinctrl. The driver is based on the kernel one.

Signed-off-by: Chris-QJ Chen <chris-qj.chen@mediatek.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>