linux-kernel - [PATCH 5.15 135/139] pinctrl: k210: Fix bias-pull-up

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Date:   Mon, 28 Feb 2022 18:25:09 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sean Anderson <seanga2@...il.com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 5.15 135/139] pinctrl: k210: Fix bias-pull-up

From: Sean Anderson <seanga2@...il.com>

commit e9f7b9228a94778edb7a63fde3c0a3c5bb793064 upstream.

Using bias-pull-up would actually cause the pin to have its pull-down
enabled. Fix this.

Signed-off-by: Sean Anderson <seanga2@...il.com>
Reviewed-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Fixes: d4c34d09ab03 ("pinctrl: Add RISC-V Canaan Kendryte K210 FPIOA driver")
Link: https://lore.kernel.org/r/20220209182822.640905-1-seanga2@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/pinctrl/pinctrl-k210.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/pinctrl/pinctrl-k210.c
+++ b/drivers/pinctrl/pinctrl-k210.c
@@ -527,7 +527,7 @@ static int k210_pinconf_set_param(struct
 	case PIN_CONFIG_BIAS_PULL_UP:
 		if (!arg)
 			return -EINVAL;
-		val |= K210_PC_PD;
+		val |= K210_PC_PU;
 		break;
 	case PIN_CONFIG_DRIVE_STRENGTH:
 		arg *= 1000;