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| author | Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> | 2023-12-07 09:06:53 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-12-15 11:34:34 +0100 |
| commit | d3aaa7203a17e8399df41e7c3f088f51368b001c (patch) | |
| tree | 6ac1e5a2a12b04c3b4bd62ccb0d4cc92447272fa /drivers/pinctrl/renesas | |
| parent | 906b545b16594e45f2d3433028dcf649d2c05ebb (diff) | |
| download | lwn-d3aaa7203a17e8399df41e7c3f088f51368b001c.tar.gz lwn-d3aaa7203a17e8399df41e7c3f088f51368b001c.zip | |
pinctrl: renesas: rzg2l: Add pin configuration support for pinmux groups
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>
Diffstat (limited to 'drivers/pinctrl/renesas')
| -rw-r--r-- | drivers/pinctrl/renesas/pinctrl-rzg2l.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index 413ef9715503..b27296382816 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; |