lkml.org 
[lkml]   [2023]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 04/11] 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 need to be configured with different
settings (e.g., power-source needs to be set, RGMII TXC and 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>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---

Changes in v2:
- moved num_configs check under num_pinmux check as suggested
- collected Rb tag

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 2eb240b731d5..58786455ecf3 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) {
+ if (num_configs)
+ nmaps += 1;
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
\
 
 \ /
  Last update: 2023-12-07 08:09    [W:0.329 / U:0.168 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site