brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 86 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0265-pwm-Send-a-uevent-on-the-pwmchip-device-upon-channel.patch b/target/linux/bcm27xx/patches-4.19/950-0265-pwm-Send-a-uevent-on-the-pwmchip-device-upon-channel.patch
new file mode 100644
index 0000000000..8136e3ffa0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0265-pwm-Send-a-uevent-on-the-pwmchip-device-upon-channel.patch
@@ -0,0 +1,86 @@
+From 20a5b38305df30e25b4429e0e34e35235dd57228 Mon Sep 17 00:00:00 2001
+From: Fabrice Gasnier <fabrice.gasnier@st.com>
+Date: Mon, 1 Oct 2018 15:23:57 +0200
+Subject: [PATCH] pwm: Send a uevent on the pwmchip device upon channel
+ sysfs (un)export
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+commit 552c02e3e7cfe2744b59de285aaea70021ae95c9 upstream.
+
+This patch sends a uevent (KOBJ_CHANGE) on the pwmchipN device,
+everytime a pwmX channel has been exported/unexported via sysfs. This
+allows udev to implement rules on such events, like:
+
+SUBSYSTEM=="pwm*", PROGRAM="/bin/sh -c '\
+        chown -R root:gpio /sys/class/pwm && chmod -R 770 /sys/class/pwm;\
+        chown -R root:gpio
+/sys/devices/platform/soc/*.pwm/pwm/pwmchip* && chmod -R 770
+/sys/devices/platform/soc/*.pwm/pwm/pwmchip*\
+'"
+
+This is a replacement patch for commit 7e5d1fd75c3d ("pwm: Set class for
+exported channels in sysfs"), see [1].
+
+basic testing:
+$ udevadm monitor --environment &
+$ echo 0 > /sys/class/pwm/pwmchip0/export
+KERNEL[197.321736] change   /devices/.../pwm/pwmchip0 (pwm)
+ACTION=change
+DEVPATH=/devices/.../pwm/pwmchip0
+EXPORT=pwm0
+SEQNUM=2045
+SUBSYSTEM=pwm
+
+[1] https://lkml.org/lkml/2018/9/25/713
+
+Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
+Tested-by: Gottfried Haider <gottfried.haider@gmail.com>
+Tested-by: Michal Vokáč <michal.vokac@ysoft.com>
+Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
+---
+ drivers/pwm/sysfs.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/drivers/pwm/sysfs.c
++++ b/drivers/pwm/sysfs.c
+@@ -249,6 +249,7 @@ static void pwm_export_release(struct de
+ static int pwm_export_child(struct device *parent, struct pwm_device *pwm)
+ {
+ 	struct pwm_export *export;
++	char *pwm_prop[2];
+ 	int ret;
+ 
+ 	if (test_and_set_bit(PWMF_EXPORTED, &pwm->flags))
+@@ -276,6 +277,10 @@ static int pwm_export_child(struct devic
+ 		export = NULL;
+ 		return ret;
+ 	}
++	pwm_prop[0] = kasprintf(GFP_KERNEL, "EXPORT=pwm%u", pwm->hwpwm);
++	pwm_prop[1] = NULL;
++	kobject_uevent_env(&parent->kobj, KOBJ_CHANGE, pwm_prop);
++	kfree(pwm_prop[0]);
+ 
+ 	return 0;
+ }
+@@ -288,6 +293,7 @@ static int pwm_unexport_match(struct dev
+ static int pwm_unexport_child(struct device *parent, struct pwm_device *pwm)
+ {
+ 	struct device *child;
++	char *pwm_prop[2];
+ 
+ 	if (!test_and_clear_bit(PWMF_EXPORTED, &pwm->flags))
+ 		return -ENODEV;
+@@ -296,6 +302,11 @@ static int pwm_unexport_child(struct dev
+ 	if (!child)
+ 		return -ENODEV;
+ 
++	pwm_prop[0] = kasprintf(GFP_KERNEL, "UNEXPORT=pwm%u", pwm->hwpwm);
++	pwm_prop[1] = NULL;
++	kobject_uevent_env(&parent->kobj, KOBJ_CHANGE, pwm_prop);
++	kfree(pwm_prop[0]);
++
+ 	/* for device_find_child() */
+ 	put_device(child);
+ 	device_unregister(child);