Implement get_pin_muxing() callback so that pinmux status command can be used on Renesas platforms.
Signed-off-by: Lad Prabhakar prabhakar.mahadev-lad.rj@bp.renesas.com Reviewed-by: Biju Das biju.das.jz@bp.renesas.com --- drivers/pinctrl/renesas/pfc.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/drivers/pinctrl/renesas/pfc.c b/drivers/pinctrl/renesas/pfc.c index 275702d13a..a1da45db2e 100644 --- a/drivers/pinctrl/renesas/pfc.c +++ b/drivers/pinctrl/renesas/pfc.c @@ -44,6 +44,7 @@ enum sh_pfc_model {
struct sh_pfc_pin_config { u32 type; + const char *function_name; };
struct sh_pfc_pinctrl { @@ -448,6 +449,30 @@ static const char *sh_pfc_pinctrl_get_group_name(struct udevice *dev, return priv->pfc.info->groups[selector].name; }
+static int sh_pfc_pinctrl_get_pin_muxing(struct udevice *dev, + unsigned int selector, + char *buf, int size) +{ + struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev); + struct sh_pfc_pinctrl *pmx = &priv->pmx; + struct sh_pfc *pfc = &priv->pfc; + struct sh_pfc_pin_config *cfg; + const struct sh_pfc_pin *pin; + int idx; + + pin = &priv->pfc.info->pins[selector]; + if (!pin) { + snprintf(buf, size, "Unknown"); + return -EINVAL; + } + + idx = sh_pfc_get_pin_index(pfc, pin->pin); + cfg = &pmx->configs[idx]; + snprintf(buf, size, "%s", cfg->function_name); + + return 0; +} + static int sh_pfc_pinctrl_get_functions_count(struct udevice *dev) { struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev); @@ -495,6 +520,7 @@ static int sh_pfc_gpio_request_enable(struct udevice *dev, return ret;
cfg->type = PINMUX_TYPE_GPIO; + cfg->function_name = "gpio";
return 0; } @@ -524,6 +550,7 @@ static int sh_pfc_gpio_disable_free(struct udevice *dev, cfg = &pmx->configs[idx];
cfg->type = PINMUX_TYPE_NONE; + cfg->function_name = "none";
return 0; } @@ -547,6 +574,7 @@ static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector, return ret;
cfg->type = PINMUX_TYPE_FUNCTION; + cfg->function_name = "function";
return 0; } @@ -581,6 +609,7 @@ static int sh_pfc_pinctrl_group_set(struct udevice *dev, unsigned group_selector idx = sh_pfc_get_pin_index(pfc, grp->pins[i]); cfg = &pmx->configs[idx]; cfg->type = PINMUX_TYPE_FUNCTION; + cfg->function_name = priv->pfc.info->groups[group_selector].name; }
done: @@ -787,6 +816,7 @@ static struct pinctrl_ops sh_pfc_pinctrl_ops = { .get_pin_name = sh_pfc_pinctrl_get_pin_name, .get_groups_count = sh_pfc_pinctrl_get_groups_count, .get_group_name = sh_pfc_pinctrl_get_group_name, + .get_pin_muxing = sh_pfc_pinctrl_get_pin_muxing, .get_functions_count = sh_pfc_pinctrl_get_functions_count, .get_function_name = sh_pfc_pinctrl_get_function_name,
@@ -817,6 +847,7 @@ static int sh_pfc_map_pins(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx) for (i = 0; i < pfc->info->nr_pins; ++i) { struct sh_pfc_pin_config *cfg = &pmx->configs[i]; cfg->type = PINMUX_TYPE_NONE; + cfg->function_name = "none"; }
return 0;