bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)

1 files changed, 38 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0477-drm-modes-parse_cmdline-Remove-some-unnecessary-code.patch b/target/linux/bcm27xx/patches-5.4/950-0477-drm-modes-parse_cmdline-Remove-some-unnecessary-code.patch
new file mode 100644
index 0000000000..fb4a7f1cda
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0477-drm-modes-parse_cmdline-Remove-some-unnecessary-code.patch
@@ -0,0 +1,38 @@
+From 339666068713986cfe1456175dd8a7514f6ed2ab Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Mon, 18 Nov 2019 16:51:31 +0100
+Subject: [PATCH] drm/modes: parse_cmdline: Remove some unnecessary
+ code (v2)
+
+Commit 5b926617cdef41ce0696e09834991194b1759e28 upstream.
+
+fb_get_options() will return fb_mode_option if no video=<connector-name>
+argument is present on the kernel commandline, so there is no need to also
+do this in drm_mode_parse_command_line_for_connector() as our only caller
+uses fb_get_options() to get the mode_option argument.
+
+Changes in v2:
+-Split out the changes dealing with the initialization of the mode struct
+ into a separate patch
+
+Acked-by: Maxime Ripard <mripard@kernel.org>
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-10-hdegoede@redhat.com
+---
+ drivers/gpu/drm/drm_modes.c | 5 -----
+ 1 file changed, 5 deletions(-)
+
+--- a/drivers/gpu/drm/drm_modes.c
++++ b/drivers/gpu/drm/drm_modes.c
+@@ -1754,11 +1754,6 @@ bool drm_mode_parse_command_line_for_con
+ 
+ 	mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
+ 
+-#ifdef CONFIG_FB
+-	if (!mode_option)
+-		mode_option = fb_mode_option;
+-#endif
+-
+ 	if (!mode_option) {
+ 		mode->specified = false;
+ 		return false;