Patch "ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux" has been added to the 4.1-stable tree

This is a note to let you know that I've just added the patch titled

ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux

to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm-dts-dra7x-evm-prevent-glitch-on-dcan1-pinmux.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Roger Quadros <[email protected]>
Date: Tue, 7 Jul 2015 17:27:57 +0300
Subject: ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux

From: Roger Quadros <[email protected]>

commit 2acb5c301edf39ab6d066687ce70da1166e4de9e upstream.

Driver core sets "default" pinmux on on probe and CAN driver sets "sleep" pinmux during register. This causes a small window where the CAN pins are in "default" state with the DCAN module being disabled.

Change the "default" state to be like sleep so this glitch is avoided. Add a new "active" state that is used by the driver when CAN is actually active.

---
 arch/arm/boot/dts/dra7-evm.dts  |    5 +++--
 arch/arm/boot/dts/dra72-evm.dts |    5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

@@ -686,7 +686,8 @@
 
 &dcan1 {
 	status = "ok";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&dcan1_pins_default>;
+	pinctrl-names = "default", "sleep", "active";
+	pinctrl-0 = <&dcan1_pins_sleep>;
 	pinctrl-1 = <&dcan1_pins_sleep>;
+	pinctrl-2 = <&dcan1_pins_default>;
 };

@@ -497,9 +497,10 @@
 
 &dcan1 {
 	status = "ok";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&dcan1_pins_default>;
+	pinctrl-names = "default", "sleep", "active";
+	pinctrl-0 = <&dcan1_pins_sleep>;
 	pinctrl-1 = <&dcan1_pins_sleep>;
+	pinctrl-2 = <&dcan1_pins_default>;
 };
 
 &qspi {

Patches currently in stable-queue which might be from [email protected] are

queue-4.1/arm-dts-am57xx-beagle-x15-provide-supply-for-usb2_phy2.patch queue-4.1/can-c_can-fix-default-pinmux-glitch-at-init.patch queue-4.1/arm-dts-dra7x-evm-prevent-glitch-on-dcan1-pinmux.patch