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pinctrl: renesas: rzg2l: Add pin configuration support for pinmux groups

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On RZ/G3S different Ethernet pins need to be configured with different
settings (e.g. power-source needs to be set, RGMII TXC and TX_CTL pins
need output-enable).  Adjust the driver to allow specifying pin
configuration for pinmux groups.  With this, DT settings like the
following are taken into account by the driver:

    eth0_pins: eth0 {
	    tx_ctl {
		    pinmux = <RZG2L_PORT_PINMUX(1, 1, 1)>;  /* ET0_TX_CTL */
		    power-source = <1800>;
		    output-enable;
		    drive-strength-microamp = <5200>;
	    };
    };

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20231207070700.4156557-5-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Claudiu Beznea 2023-12-07 09:06:53 +02:00 committed by Geert Uytterhoeven
parent 906b545b16
commit d3aaa7203a
1 changed files with 14 additions and 1 deletions
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15
drivers/pinctrl/renesas/pinctrl-rzg2l.c
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@ -376,8 +376,11 @@ static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev,
goto done;
}
if (num_pinmux)
if (num_pinmux) {
nmaps += 1;
if (num_configs)
nmaps += 1;
}
if (num_pins)
nmaps += num_pins;
@ -462,6 +465,16 @@ static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev,
maps[idx].data.mux.function = name;
idx++;
if (num_configs) {
ret = rzg2l_map_add_config(&maps[idx], name,
PIN_MAP_TYPE_CONFIGS_GROUP,
configs, num_configs);
if (ret < 0)
goto remove_group;
idx++;
}
dev_dbg(pctrl->dev, "Parsed %pOF with %d pins\n", np, num_pinmux);
ret = 0;
goto done;