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pinctrl: renesas: rzg2l: Handle PUPD for RZ/V2H(P) dedicated pins in PM

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On RZ/V2H(P), dedicated pins support pull-up/pull-down configuration
via PIN_CFG_PUPD. Add PUPD handling for dedicated pins in the PM
save/restore path.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260413182456.811543-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Lad Prabhakar 2026-04-13 19:24:55 +01:00 committed by Geert Uytterhoeven
parent 25e71db480
commit eea549769c
1 changed files with 18 additions and 1 deletions
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19
drivers/pinctrl/renesas/pinctrl-rzg2l.c
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@ -2798,6 +2798,12 @@ static int rzg2l_pinctrl_reg_cache_alloc(struct rzg2l_pinctrl *pctrl)
GFP_KERNEL);
if (!dedicated_cache->nod[i])
return -ENOMEM;
dedicated_cache->pupd[i] = devm_kcalloc(pctrl->dev, n_dedicated_pins,
sizeof(*dedicated_cache->pupd[i]),
GFP_KERNEL);
if (!dedicated_cache->pupd[i])
return -ENOMEM;
}
pctrl->cache = cache;
@ -3135,7 +3141,7 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b
* port offset are close together.
*/
for (i = 0, caps = 0; i < pctrl->data->n_dedicated_pins; i++) {
bool has_iolh, has_ien, has_sr, has_nod;
bool has_iolh, has_ien, has_sr, has_nod, has_pupd;
u32 off, next_off = 0;
u64 cfg, next_cfg;
u8 pincnt;
@ -3159,6 +3165,7 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b
has_ien = !!(caps & PIN_CFG_IEN);
has_sr = !!(caps & PIN_CFG_SR);
has_nod = !!(caps & PIN_CFG_NOD);
has_pupd = !!(caps & PIN_CFG_PUPD);
pincnt = hweight8(FIELD_GET(RZG2L_SINGLE_PIN_BITS_MASK, cfg));
if (has_iolh) {
@ -3177,6 +3184,11 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b
RZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + NOD(off),
cache->nod[0][i]);
}
if (has_pupd) {
RZG2L_PCTRL_REG_ACCESS32(suspend, pctrl->base + PUPD(off),
cache->pupd[0][i]);
}
if (pincnt >= 4) {
if (has_iolh) {
RZG2L_PCTRL_REG_ACCESS32(suspend,
@ -3198,6 +3210,11 @@ static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, b
pctrl->base + NOD(off) + 4,
cache->nod[1][i]);
}
if (has_pupd) {
RZG2L_PCTRL_REG_ACCESS32(suspend,
pctrl->base + PUPD(off) + 4,
cache->pupd[1][i]);
}
}
caps = 0;
}