kernel-module-qualcomm: remove wlan kernel module load script

The qualcomm.sh script has been losing functionality over time, to the
point that now is just loading the kernel module using 'modprobe'.

Instead, run modprobe directly from the udev rule and get rid of the
qualcomm script.

Signed-off-by: Javier Viguera <javier.viguera@digi.com>

meta-digi-arm/recipes-kernel/kernel-module-qualcomm/kernel-module-qualcomm.bb

@@ -23,7 +23,6 @@ QUALCOMM_WIFI_INTERFACE:ccimx8x = "pci"
 
 SRC_URI:append = " \
     file://81-qcom-wifi.rules \
-    file://qualcomm.sh \
 "
 
 FILES_SDIO = " \
@@ -67,8 +66,6 @@ do_install:append() {
 	install -d ${D}${base_libdir}/firmware/wlan/
 	install -m 0644 ${WORKDIR}/git/firmware_bin/WCNSS_cfg.dat ${D}${base_libdir}/firmware/wlan/cfg.dat
 	install -m 0644 ${WORKDIR}/git/firmware_bin/WCNSS_qcom_cfg.ini ${D}${base_libdir}/firmware/wlan/qcom_cfg.ini
-	install -d ${D}${sysconfdir}/udev/scripts
-	install -m 0755 ${WORKDIR}/qualcomm.sh ${D}${sysconfdir}/udev/scripts/
 	install -d ${D}${sysconfdir}/udev/rules.d
 	install -m 0644 ${WORKDIR}/81-qcom-wifi.rules ${D}${sysconfdir}/udev/rules.d/
 }

meta-digi-arm/recipes-kernel/kernel-module-qualcomm/kernel-module-qualcomm/81-qcom-wifi.rules

@@ -1,4 +1,4 @@
 # Load Qualcomm wireless module (sdio)
-SUBSYSTEM=="sdio", ACTION=="add", ENV{MODALIAS}=="sdio:c00v0271d050A", RUN="/etc/udev/scripts/qualcomm.sh"
+SUBSYSTEM=="sdio", ACTION=="add", ENV{MODALIAS}=="sdio:c00v0271d050A", RUN="/sbin/modprobe wlan"
 # Load Qualcomm wireless module (pci)
-SUBSYSTEM=="pci", ACTION=="add", ENV{MODALIAS}=="pci:v0000168Cd0000003Esv*sd*bc*sc*i*", RUN="/etc/udev/scripts/qualcomm.sh"
+SUBSYSTEM=="pci", ACTION=="add", ENV{MODALIAS}=="pci:v0000168Cd0000003Esv*sd*bc*sc*i*", RUN="/sbin/modprobe wlan"

meta-digi-arm/recipes-kernel/kernel-module-qualcomm/kernel-module-qualcomm/qualcomm.sh

@@ -1,73 +0,0 @@
-#!/bin/sh
-#
-# Copyright (c) 2017,2018 Digi International Inc.
-#
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, you can obtain one at http://mozilla.org/MPL/2.0/.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-#
-
-# At this point of the boot (udev script), the system log (syslog) is not
-# available yet, so use the kernel log buffer from userspace.
-log() {
-	printf "<$1>qca65x4: $2\n" >/dev/kmsg
-}
-
-# Get the permissions of the filesystem containing the given path
-get_filesystem_access() {
-	[ -z "${1}" ] && return
-
-	fs_device="$(df ${1} | awk 'NR==2 { print $1 }')"
-	fs_access="$(awk -v dev="${fs_device}" '$0 ~ dev { print substr($4,1,2) }' < /proc/mounts)"
-	echo ${fs_access}
-}
-
-# Get the mount point of the filesystem containing the given path
-get_filesystem_mount_point() {
-	[ -z "${1}" ] && return
-
-	fs_device="$(df ${1} | awk 'NR==2 { print $1 }')"
-	fs_mount_point="$(awk -v dev="${fs_device}" '$0 ~ dev { print $2 }' < /proc/mounts)"
-	echo ${fs_mount_point}
-}
-
-# Remount the filesystem containing the given path as 'read-write' if it was
-# mounted as 'read-only'.
-set_filesystem_rw_access() {
-	[ -z "${1}" ] && return
-
-	if [ "$(get_filesystem_access ${1})" = "ro" ]; then
-		mount -o remount,rw $(get_filesystem_mount_point ${1})
-	fi
-}
-
-# Do nothing if the wireless node does not exist on the device tree
-[ -d "/proc/device-tree/wireless" ] || exit 0
-
-# Do nothing if the module is already loaded
-grep -qws 'wlan' /proc/modules && exit 0
-
-FS_ORIGINAL_ACCESS="$(get_filesystem_access ${FIRMWARE_DIR})"
-
-# Load the wireless module with the params defined in modprobe.d/qualcomm.conf
-# and reduce the console log level to avoid debug messages at boot time
-LOGLEVEL="$(sed -ne 's,^kernel.printk[^=]*=[[:blank:]]*\(.*\)$,\1,g;T;p' /etc/sysctl.conf 2>/dev/null)"
-[ -n "${LOGLEVEL}" ] && sysctl -q -w kernel.printk="${LOGLEVEL}"
-modprobe wlan
-
-# Verify the interface is present
-[ -d "/sys/class/net/wlan0" ] || log "3" "[ERROR] Loading wlan module"
-
-# Restore the filesystem with the original access permissions if it has been
-# changed inside the script.
-if [ "$(get_filesystem_access ${FIRMWARE_DIR})" != "${FS_ORIGINAL_ACCESS}" ]; then
-	mount -o remount,${FS_ORIGINAL_ACCESS} $(get_filesystem_mount_point ${FIRMWARE_DIR})
-fi