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| author | Roger Quadros <rogerq@ti.com> | 2015-07-07 16:27:57 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2015-07-12 21:12:54 +0200 |
| commit | 2acb5c301edf39ab6d066687ce70da1166e4de9e (patch) | |
| tree | 0002003e951b5057c16de5a39140abcbf6e44e50 | |
| parent | can: c_can: Fix default pinmux glitch at init (diff) | |
| download | linux-2acb5c301edf39ab6d066687ce70da1166e4de9e.tar.xz linux-2acb5c301edf39ab6d066687ce70da1166e4de9e.zip | |
ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux
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>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -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 4e1b60581782..803738414086 100644 --- a/arch/arm/boot/dts/dra72-evm.dts +++ b/arch/arm/boot/dts/dra72-evm.dts @@ -587,9 +587,10 @@ &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 { |