linux-kernel - [PATCH V2 5/5] arm64: dts: ti: am65/j721e/j7200: Mark firmware used uart as "reserved"

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Message-ID: <20201112014929.25227-6-nm@ti.com>
Date:   Wed, 11 Nov 2020 19:49:29 -0600
From:   Nishanth Menon <nm@...com>
To:     Roger Quadros <rogerq@...com>, Keerthy <j-keerthy@...com>,
        Jyri Sarha <jsarha@...com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Tony Lindgren <tony@...mide.com>, Tero Kristo <t-kristo@...com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Nishanth Menon <nm@...com>
Subject: [PATCH V2 5/5] arm64: dts: ti: am65/j721e/j7200: Mark firmware used uart as "reserved"

Follow the device tree standards that states to set the
status="reserved" if an device is operational, but used by a non-linux
firmware in the system.

Signed-off-by: Nishanth Menon <nm@...com>
---
- New patch introduced with V2 based on feedback on v1

 arch/arm64/boot/dts/ti/k3-am654-base-board.dts        | 2 +-
 arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts | 4 ++--
 arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 744efcbb4f7f..b5dba13556f8 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -211,7 +211,7 @@ AM65X_IOPAD(0x0010, PIN_INPUT, 0) /* (D21) ECAP0_IN_APWM_OUT */
 
 &wkup_uart0 {
 	/* Wakeup UART is used by System firmware */
-	status = "disabled";
+	status = "reserved";
 };
 
 &main_uart0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index ef03e7636b66..1d08434229c7 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -79,7 +79,7 @@ J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS */
 
 &wkup_uart0 {
 	/* Wakeup UART is used by System firmware */
-	status = "disabled";
+	status = "reserved";
 };
 
 &main_uart0 {
@@ -89,7 +89,7 @@ &main_uart0 {
 
 &main_uart2 {
 	/* MAIN UART 2 is used by R5F firmware */
-	status = "disabled";
+	status = "reserved";
 };
 
 &main_uart3 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 9416528caa8a..5754892f8501 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -221,7 +221,7 @@ J721E_WKUP_IOPAD(0x0088, PIN_INPUT, 0) /* MCU_MDIO0_MDIO */
 
 &wkup_uart0 {
 	/* Wakeup UART is used by System firmware */
-	status = "disabled";
+	status = "reserved";
 };
 
 &main_uart0 {
-- 
2.29.2