From 3623e1024efc00ca83820e3d78a6dbf3d982d0f2 Mon Sep 17 00:00:00 2001
From: Judith Mendez <jm@ti.com>
Date: Fri, 20 Dec 2024 16:35:23 -0600
Subject: [PATCH] ARM: dts: ti: am437x-l4: remove autoidle for UART

According to the TRM [0] in 21.5.1.42 UART_SYSC Register,
the autoidle bit should not be set for UART, so remove the
appropriate SYSC_OMAP2_AUTOIDLE flag.

[0] https://www.ti.com/lit/ug/spruhl7i/spruhl7i.pdf

Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Sukrut Bellary <sbellary@baylibre.com>
Link: https://lore.kernel.org/r/20241220223523.2125278-1-jm@ti.com
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
---
 arch/arm/boot/dts/ti/omap/am437x-l4.dtsi | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi b/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi
index 824b9415ebbe..fd4634f8c629 100644
--- a/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi
+++ b/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi
@@ -180,8 +180,7 @@
 			      <0x9058 0x4>;
 			reg-names = "rev", "sysc", "syss";
 			ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
-					 SYSC_OMAP2_SOFTRESET |
-					 SYSC_OMAP2_AUTOIDLE)>;
+					 SYSC_OMAP2_SOFTRESET)>;
 			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
@@ -698,8 +697,7 @@
 			      <0x22058 0x4>;
 			reg-names = "rev", "sysc", "syss";
 			ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
-					 SYSC_OMAP2_SOFTRESET |
-					 SYSC_OMAP2_AUTOIDLE)>;
+					 SYSC_OMAP2_SOFTRESET)>;
 			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
@@ -726,8 +724,7 @@
 			      <0x24058 0x4>;
 			reg-names = "rev", "sysc", "syss";
 			ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
-					 SYSC_OMAP2_SOFTRESET |
-					 SYSC_OMAP2_AUTOIDLE)>;
+					 SYSC_OMAP2_SOFTRESET)>;
 			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
@@ -1385,8 +1382,7 @@
 			      <0xa6058 0x4>;
 			reg-names = "rev", "sysc", "syss";
 			ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
-					 SYSC_OMAP2_SOFTRESET |
-					 SYSC_OMAP2_AUTOIDLE)>;
+					 SYSC_OMAP2_SOFTRESET)>;
 			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
@@ -1413,8 +1409,7 @@
 			      <0xa8058 0x4>;
 			reg-names = "rev", "sysc", "syss";
 			ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
-					 SYSC_OMAP2_SOFTRESET |
-					 SYSC_OMAP2_AUTOIDLE)>;
+					 SYSC_OMAP2_SOFTRESET)>;
 			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
@@ -1441,8 +1436,7 @@
 			      <0xaa058 0x4>;
 			reg-names = "rev", "sysc", "syss";
 			ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
-					 SYSC_OMAP2_SOFTRESET |
-					 SYSC_OMAP2_AUTOIDLE)>;
+					 SYSC_OMAP2_SOFTRESET)>;
 			ti,sysc-sidle = <SYSC_IDLE_FORCE>,
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
-- 
2.25.1