From: Niklas Cassel <niklas.cassel@wdc.com>
Date: Tue, 1 Mar 2022 10:35:44 +0000 (+0000)
Subject: pinctrl: k210: Fix loop in k210_pc_get_drive()
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=daaf18267f31857df92e83d51a9876742061b495;p=u-boot.git

pinctrl: k210: Fix loop in k210_pc_get_drive()

The loop exited too early so the k210_pc_drive_strength[0] array element
was never used.

Original Linux patch by Dan Carpenter:
https://lore.kernel.org/linux-gpio/20220209180804.GA18385@kili/

Fixes: 7224d5ccf8e1 ("pinctrl: Add support for Kendryte K210 FPIOA")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
---

diff --git a/drivers/pinctrl/pinctrl-k210.c b/drivers/pinctrl/pinctrl-k210.c
index 63084ae837..f809149102 100644
--- a/drivers/pinctrl/pinctrl-k210.c
+++ b/drivers/pinctrl/pinctrl-k210.c
@@ -511,7 +511,7 @@ static int k210_pc_get_drive(unsigned max_strength_ua)
 {
 	int i;
 
-	for (i = K210_PC_DRIVE_MAX; i; i--)
+	for (i = K210_PC_DRIVE_MAX; i >= 0; i--)
 		if (k210_pc_drive_strength[i] < max_strength_ua)
 			return i;