ralink: fix mt7620 nd_sd pinmux

In case the nd_sd group is set to the sd-card function, Pins 45 + 46 are
configured as GPIOs. If they are blocked by the sd function, they can't
be used as GPIOs.

Reported-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>

diff --git a/target/linux/ramips/patches-4.14/0008-MIPS-ralink-Fix-mt7620-nd_sd-pinmux.patch b/target/linux/ramips/patches-4.14/0008-MIPS-ralink-Fix-mt7620-nd_sd-pinmux.patch
new file mode 100644 (file)
index 0000000..acfda58
--- /dev/null
+++ b/target/linux/ramips/patches-4.14/0008-MIPS-ralink-Fix-mt7620-nd_sd-pinmux.patch
@@ -0,0 +1,29 @@
+From d41237229464ae03fe116b591e8a2fda4ffea48e Mon Sep 17 00:00:00 2001
+From: Mathias Kresin <dev@kresin.me>
+Date: Sun, 28 Oct 2018 12:46:55 +0100
+Subject: [PATCH] MIPS: ralink: Fix mt7620 nd_sd pinmux
+
+In case the nd_sd group is set to the sd-card function, Pins 45 + 46 are
+configured as GPIOs. If they are blocked by the sd function, they can't
+be used as GPIOs.
+
+Signed-off-by: Mathias Kresin <dev@kresin.me>
+Reported-by: Kristian Evensen <kristian.evensen@gmail.com>
+Fixes: f576fb6a0700 ("MIPS: ralink: cleanup the soc specific pinmux
+data")
+Cc: stable@vger.kernel.org # v3.18+
+---
+ arch/mips/ralink/mt7620.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/mips/ralink/mt7620.c
++++ b/arch/mips/ralink/mt7620.c
+@@ -84,7 +84,7 @@ static struct rt2880_pmx_func pcie_rst_g
+ };
+ static struct rt2880_pmx_func nd_sd_grp[] = {
+       FUNC("nand", MT7620_GPIO_MODE_NAND, 45, 15),
+-      FUNC("sd", MT7620_GPIO_MODE_SD, 45, 15)
++      FUNC("sd", MT7620_GPIO_MODE_SD, 47, 13)
+ };
+ 
+ static struct rt2880_pmx_group mt7620a_pinmux_data[] = {