Commit b7542f17 authored by Jordan Yates's avatar Jordan Yates Committed by Benjamin Cabé
Browse files

wifi: nrf70: configurable IOVDD settling delay 

Make the IOVDD settling delay configurable, instead of hardcoding a
delay that happens to work for the dev kits. For example, the nPM1300
load switches have a soft-start time of 1.8 ms.

Signed-off-by: default avatarJordan Yates <jordan@embeint.com>
parent b6395735

dts/bindings/wifi/nordic,nrf70.yaml

+7 −0
Changes for dts/bindings/wifi/nordic,nrf70.yaml: 7 added lines, 0 removed lines.
Original line number Diff line number Diff line
@@ -22,3 +22,10 @@ properties: 
    description: |

      GPIO of the RF Switch to control SR RF output to either SR Antenna

      or shared Antenna with Wi-Fi



  iovdd-power-up-delay-ms:

    type: int

    default: 1

    description: |

      Duration to wait after enabling IOVDD before attempting communications.

      Default value of 1 comes from the nRF7002 DK/EK switch (TCK106AG): ~600us

modules/nrf_wifi/bus/rpu_hw_if.c

+2 −2
Changes for modules/nrf_wifi/bus/rpu_hw_if.c: 2 added lines, 2 removed lines.
Original line number Diff line number Diff line
@@ -239,8 +239,8 @@ static int rpu_pwron(void) 
		gpio_pin_set_dt(&bucken_spec, 0);

		return ret;

	}

	/* Settling time for iovdd nRF7002 DK/EK - switch (TCK106AG): ~600us */

	k_msleep(1);

	/* Settling time for IOVDD */

	k_msleep(DT_PROP(NRF7002_NODE, iovdd_power_up_delay_ms));



	if ((bucken_spec.port == iovdd_ctrl_spec.port) &&

	    (bucken_spec.pin == iovdd_ctrl_spec.pin)) {

CRA Git | Maintained and supported by SUSTech CRA and CCSE