diff options
| author | Roger Quadros <rogerq@ti.com> | 2015-07-07 17:27:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-10 12:21:50 -0700 |
| commit | c0c4945b2c39ca6a543664cbccce26b400d66562 (patch) | |
| tree | 850cfa6e9330499f6e1f899fab5fe9f78e6cd295 /arch | |
| parent | 7185dab0dbe1f8e2cae26dd759475aa146e1f071 (diff) | |
ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux
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.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/dra7-evm.dts | 5 | ||||
| -rw-r--r-- | arch/arm/boot/dts/dra72-evm.dts | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index aa465904f6cc..096f68be99e2 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -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>; }; diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts index ce0390f081d9..6b05f6a0ba84 100644 --- a/arch/arm/boot/dts/dra72-evm.dts +++ b/arch/arm/boot/dts/dra72-evm.dts @@ -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 { |