diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0218-Generic-Rotary-Encoder-overlay-for-multiple-instance.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0218-Generic-Rotary-Encoder-overlay-for-multiple-instance.patch | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0218-Generic-Rotary-Encoder-overlay-for-multiple-instance.patch b/target/linux/brcm2708/patches-4.14/950-0218-Generic-Rotary-Encoder-overlay-for-multiple-instance.patch new file mode 100644 index 0000000000..b85d545033 --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0218-Generic-Rotary-Encoder-overlay-for-multiple-instance.patch @@ -0,0 +1,100 @@ +From d61d506099a7e3dc2823927c89ac56478ef9f3a5 Mon Sep 17 00:00:00 2001 +From: Ismael Asensio <isma.af@gmail.com> +Date: Sun, 18 Feb 2018 18:53:58 +0100 +Subject: [PATCH 218/454] Generic Rotary Encoder overlay for multiple instances + (#2388) + +Modify the rotary-encoder overlay to support multiple instances. +--- + arch/arm/boot/dts/overlays/README | 4 +- + .../dts/overlays/rotary-encoder-overlay.dts | 54 +++++++++++-------- + 2 files changed, 33 insertions(+), 25 deletions(-) + +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -1345,9 +1345,9 @@ Params: <None> + Name: rotary-encoder + Info: Overlay for GPIO connected rotary encoder. + Load: dtoverlay=rotary-encoder,<param>=<val> +-Params: rotary0_pin_a GPIO connected to rotary encoder channel A ++Params: pin_a GPIO connected to rotary encoder channel A + (default 4). +- rotary0_pin_b GPIO connected to rotary encoder channel B ++ pin_b GPIO connected to rotary encoder channel B + (default 17). + relative_axis register a relative axis rather than an + absolute one. Relative axis will only +--- a/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts ++++ b/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts +@@ -8,7 +8,7 @@ + fragment@0 { + target = <&gpio>; + __overlay__ { +- rotary0_pins: rotary0_pins { ++ rotary_pins: rotary_pins@4 { + brcm,pins = <4 17>; /* gpio 4 17 */ + brcm,function = <0 0>; /* input */ + brcm,pull = <2 2>; /* pull-up */ +@@ -20,32 +20,40 @@ + fragment@1 { + target-path = "/"; + __overlay__ { +- rotary0: rotary@0 { +- compatible = "rotary-encoder"; +- status = "okay"; +- pinctrl-names = "default"; +- pinctrl-0 = <&rotary0_pins>; +- gpios = <&gpio 4 0>, <&gpio 17 0>; +- linux,axis = <0>; /* REL_X */ +- rotary-encoder,encoding = "gray"; +- rotary-encoder,steps = <24>; /* 24 default */ +- rotary-encoder,steps-per-period = <1>; /* corresponds to full period mode. See README */ ++ rotary: rotary@4 { ++ compatible = "rotary-encoder"; ++ status = "okay"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&rotary_pins>; ++ gpios = <&gpio 4 0>, <&gpio 17 0>; ++ linux,axis = <0>; /* REL_X */ ++ rotary-encoder,encoding = "gray"; ++ rotary-encoder,steps = <24>; /* 24 default */ ++ rotary-encoder,steps-per-period = <1>; /* corresponds to full period mode. See README */ + }; + }; + + }; + + __overrides__ { +- rotary0_pin_a = <&rotary0>,"gpios:4", +- <&rotary0_pins>,"brcm,pins:0"; +- rotary0_pin_b = <&rotary0>,"gpios:16", +- <&rotary0_pins>,"brcm,pins:4"; +- relative_axis = <&rotary0>,"rotary-encoder,relative-axis?"; +- linux_axis = <&rotary0>,"linux,axis:0"; +- rollover = <&rotary0>,"rotary-encoder,rollover?"; +- steps-per-period = <&rotary0>,"rotary-encoder,steps-per-period:0"; +- steps = <&rotary0>,"rotary-encoder,steps:0"; +- wakeup = <&rotary0>,"wakeup-source?"; +- encoding = <&rotary0>,"rotary-encoder,encoding"; +- }; ++ pin_a = <&rotary>,"gpios:4", ++ <&rotary_pins>,"brcm,pins:0", ++ /* modify reg values to allow multiple instantiation */ ++ <&rotary>,"reg:0", ++ <&rotary_pins>,"reg:0"; ++ pin_b = <&rotary>,"gpios:16", ++ <&rotary_pins>,"brcm,pins:4"; ++ relative_axis = <&rotary>,"rotary-encoder,relative-axis?"; ++ linux_axis = <&rotary>,"linux,axis:0"; ++ rollover = <&rotary>,"rotary-encoder,rollover?"; ++ steps-per-period = <&rotary>,"rotary-encoder,steps-per-period:0"; ++ steps = <&rotary>,"rotary-encoder,steps:0"; ++ wakeup = <&rotary>,"wakeup-source?"; ++ encoding = <&rotary>,"rotary-encoder,encoding"; ++ /* legacy parameters*/ ++ rotary0_pin_a = <&rotary>,"gpios:4", ++ <&rotary_pins>,"brcm,pins:0"; ++ rotary0_pin_b = <&rotary>,"gpios:16", ++ <&rotary_pins>,"brcm,pins:4"; ++ }; + }; |