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48 lines
1.7 KiB
48 lines
1.7 KiB
6 years ago
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From 61ad2796b48891e5a3e52d290cb51a44259b5799 Mon Sep 17 00:00:00 2001
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From: hdoverobinson <hdoverobinson@gmail.com>
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Date: Tue, 13 Mar 2018 06:58:39 -0400
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Subject: [PATCH 247/454] added capture_clear option to pps-gpio via dtoverlay
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(#2433)
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---
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arch/arm/boot/dts/overlays/README | 5 ++++-
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arch/arm/boot/dts/overlays/pps-gpio-overlay.dts | 1 +
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drivers/pps/clients/pps-gpio.c | 3 +++
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3 files changed, 8 insertions(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1287,7 +1287,10 @@ Info: Configures the pps-gpio (pulse-p
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Load: dtoverlay=pps-gpio,<param>=<val>
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Params: gpiopin Input GPIO (default "18")
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assert_falling_edge When present, assert is indicated by a falling
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- edge, rather than by a rising edge
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+ edge, rather than by a rising edge (default
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+ off)
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+ capture_clear Generate clear events on the trailing edge
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+ (default off)
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Name: pwm
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--- a/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
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@@ -33,5 +33,6 @@
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<&pps_pins>,"brcm,pins:0",
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<&pps_pins>,"reg:0";
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assert_falling_edge = <&pps>,"assert-falling-edge?";
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+ capture_clear = <&pps>,"capture-clear?";
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};
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};
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--- a/drivers/pps/clients/pps-gpio.c
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+++ b/drivers/pps/clients/pps-gpio.c
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@@ -119,6 +119,9 @@ static int pps_gpio_probe(struct platfor
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if (of_get_property(np, "assert-falling-edge", NULL))
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data->assert_falling_edge = true;
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+
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+ if (of_get_property(np, "capture-clear", NULL))
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+ data->capture_clear = true;
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}
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/* GPIO setup */
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