lkml.org 
[lkml]   [2024]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH 2/2] arm64: dts: qcom: sm8650-mtp: add gpio74 as reserved gpio
The TLMM gpio74 is also used to communicate with the secure NFC
on-board module, some variants of the SM8650-MTP board requires
this GPIO to be dedicated to the secure firmware and set reserved
in order to successfully initialize the TLMM GPIOs from HLOS (Linux).
On the other boards this GPIO is unused so it's still safe to mark
the GPIO as reserved.

Fixes: 6fbdb3c1fac7 ("arm64: dts: qcom: sm8650: add initial SM8650 MTP dts")
Reported-by: Georgi Djakov <djakov@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
arch/arm64/boot/dts/qcom/sm8650-mtp.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8650-mtp.dts b/arch/arm64/boot/dts/qcom/sm8650-mtp.dts
index 9d916edb1c73..be133a3d5cbe 100644
--- a/arch/arm64/boot/dts/qcom/sm8650-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8650-mtp.dts
@@ -622,7 +622,7 @@ right_spkr: speaker@0,1 {

&tlmm {
/* Reserved I/Os for NFC */
- gpio-reserved-ranges = <32 8>;
+ gpio-reserved-ranges = <32 8>, <74 1>;

disp0_reset_n_active: disp0-reset-n-active-state {
pins = "gpio133";
--
2.34.1


\
 
 \ /
  Last update: 2024-01-11 18:05    [W:0.440 / U:0.652 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site