linux-kernel - [PATCH 7/8] ARM: dts: Fix incorrect dcan register mapping for am3, am4 and dra7

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Date:   Tue, 23 Jul 2019 04:28:10 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     linux-omap@...r.kernel.org
Cc:     Dave Gerlach <d-gerlach@...com>, Faiz Abbas <faiz_abbas@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Keerthy <j-keerthy@...com>, Nishanth Menon <nm@...com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Roger Quadros <rogerq@...com>, Suman Anna <s-anna@...com>,
        Tero Kristo <t-kristo@...com>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 7/8] ARM: dts: Fix incorrect dcan register mapping for am3, am4 and dra7

We are currently using a wrong register for dcan revision. Although
this is currently only used for detecting the dcan module, let's
fix it to avoid confusion.

Signed-off-by: Tony Lindgren <tony@...mide.com>
---
 arch/arm/boot/dts/am33xx-l4.dtsi | 4 ++++
 arch/arm/boot/dts/am437x-l4.dtsi | 4 ++++
 arch/arm/boot/dts/dra7-l4.dtsi   | 4 ++--
 drivers/bus/ti-sysc.c            | 3 ++-
 4 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi
--- a/arch/arm/boot/dts/am33xx-l4.dtsi
+++ b/arch/arm/boot/dts/am33xx-l4.dtsi
@@ -1758,6 +1758,8 @@
 
 		target-module@...00 {			/* 0x481cc000, ap 60 46.0 */
 			compatible = "ti,sysc-omap4", "ti,sysc";
+			reg = <0xcc020 0x4>;
+			reg-names = "rev";
 			ti,hwmods = "d_can0";
 			/* Domains (P, C): per_pwrdm, l4ls_clkdm */
 			clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>,
@@ -1780,6 +1782,8 @@
 
 		target-module@...00 {			/* 0x481d0000, ap 62 42.0 */
 			compatible = "ti,sysc-omap4", "ti,sysc";
+			reg = <0xd0020 0x4>;
+			reg-names = "rev";
 			ti,hwmods = "d_can1";
 			/* Domains (P, C): per_pwrdm, l4ls_clkdm */
 			clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>,
diff --git a/arch/arm/boot/dts/am437x-l4.dtsi b/arch/arm/boot/dts/am437x-l4.dtsi
--- a/arch/arm/boot/dts/am437x-l4.dtsi
+++ b/arch/arm/boot/dts/am437x-l4.dtsi
@@ -1574,6 +1574,8 @@
 
 		target-module@...00 {			/* 0x481cc000, ap 50 46.0 */
 			compatible = "ti,sysc-omap4", "ti,sysc";
+			reg = <0xcc020 0x4>;
+			reg-names = "rev";
 			ti,hwmods = "d_can0";
 			/* Domains (P, C): per_pwrdm, l4ls_clkdm */
 			clocks = <&l4ls_clkctrl AM4_L4LS_D_CAN0_CLKCTRL 0>;
@@ -1593,6 +1595,8 @@
 
 		target-module@...00 {			/* 0x481d0000, ap 52 3a.0 */
 			compatible = "ti,sysc-omap4", "ti,sysc";
+			reg = <0xd0020 0x4>;
+			reg-names = "rev";
 			ti,hwmods = "d_can1";
 			/* Domains (P, C): per_pwrdm, l4ls_clkdm */
 			clocks = <&l4ls_clkctrl AM4_L4LS_D_CAN1_CLKCTRL 0>;
diff --git a/arch/arm/boot/dts/dra7-l4.dtsi b/arch/arm/boot/dts/dra7-l4.dtsi
--- a/arch/arm/boot/dts/dra7-l4.dtsi
+++ b/arch/arm/boot/dts/dra7-l4.dtsi
@@ -3020,7 +3020,7 @@
 
 		target-module@...00 {			/* 0x48480000, ap 31 16.0 */
 			compatible = "ti,sysc-omap4", "ti,sysc";
-			reg = <0x80000 0x4>;
+			reg = <0x80020 0x4>;
 			reg-names = "rev";
 			clocks = <&l4per2_clkctrl DRA7_L4PER2_DCAN2_CLKCTRL 0>;
 			clock-names = "fck";
@@ -4572,7 +4572,7 @@
 
 		target-module@...0 {			/* 0x4ae3c000, ap 30 04.0 */
 			compatible = "ti,sysc-omap4", "ti,sysc";
-			reg = <0xc000 0x4>;
+			reg = <0xc020 0x4>;
 			reg-names = "rev";
 			clocks = <&wkupaon_clkctrl DRA7_WKUPAON_DCAN1_CLKCTRL 0>;
 			clock-names = "fck";
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1267,7 +1267,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 	SYSC_QUIRK("control", 0, 0, 0x10, -1, 0x40000900, 0xffffffff, 0),
 	SYSC_QUIRK("cpgmac", 0, 0x1200, 0x1208, 0x1204, 0x4edb1902,
 		   0xffff00f0, 0),
-	SYSC_QUIRK("dcan", 0, 0, -1, -1, 0xffffffff, 0xffffffff, 0),
+	SYSC_QUIRK("dcan", 0, 0x20, -1, -1, 0xa3170504, 0xffffffff, 0),
+	SYSC_QUIRK("dcan", 0, 0x20, -1, -1, 0x4edb1902, 0xffffffff, 0),
 	SYSC_QUIRK("dmic", 0, 0, 0x10, -1, 0x50010000, 0xffffffff, 0),
 	SYSC_QUIRK("dwc3", 0, 0, 0x10, -1, 0x500a0200, 0xffffffff, 0),
 	SYSC_QUIRK("epwmss", 0, 0, 0x4, -1, 0x47400001, 0xffffffff, 0),
-- 
2.21.0