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Subject[PATCH 06/14] pinctrl: renesas: rzg2l: Add pin configuration support for pinmux groups
Date
From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

On RZ/G3S different Ethernet pins needs to be configured with different
settings (e.g. power-source need to be set, RGMII TXC, TX_CTL pins need
output-enable). Commit adjust driver to allow specifying pin configuration
for pinmux groups. With this DT settings like the following are taken
into account by 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>
---
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 21ee628363fa..819698dacef0 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -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;
--
2.39.2
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