Commit 363aa310 authored Sep 19, 2016 by Madhanraj Chelladurai Committed by Gerrit - the friendly Code Review server Oct 29, 2018

pps: DR_SYNC pulse needs to be connected to Linux PPS driver



DR_SYNC pulse needs to be connected to Linux PPS driver for
GNSS driver to receive pps_event. DR_SYNC pulse is generated
by GSS firmware in modem, GNSS driver needs to receive
pps_event of this pulse to get the kernel timestamp to
synchronize time/data to finer quality.

Change-Id: I1c686fcf6306e890cc0a5c3296cdcaff49282e2f
CRs-Fixed: 1068214
Signed-off-by: Madhanraj Chelladurai <mchellad@codeaurora.org>

parent cff9fccb

arch/arm/boot/dts/qcom/msm8996-pinctrl.dtsi

+14 −0

Original line number	Diff line number	Diff line
		@@ -2839,5 +2839,19 @@
		bias-pull-down; /* PULL down */
		};
		};

		pinctrl_pps: ppsgrp {
		mux {
		pins = "gpio128";
		function = "nav_dr";
		};

		config {
		pins = "gpio128";
		drive-strength = <16>;
		bias-pull-down;
		};
		};

		};
		};

arch/arm/boot/dts/qcom/msm8996.dtsi

+8 −0

Original line number	Diff line number	Diff line
		@@ -4018,6 +4018,14 @@

		qcom,save-reg;
		};

		pps {
		compatible = "pps-gpio";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_pps>;
		gpios = <&tlmm 128 0>;
		status = "okay";
		};
		};

		&gdsc_venus {