bcm27xx: update to latest patches from RPi foundation

Also removes random module and switches to new bcm2711 thermal driver.
Boot tested on RPi 4B v1.1 4G.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0641-drm-vc4-hdmi-Silence-pixel-clock-error-on-EPROBE_DEF.patch b/target/linux/bcm27xx/patches-5.4/950-0641-drm-vc4-hdmi-Silence-pixel-clock-error-on-EPROBE_DEF.patch
new file mode 100644
index 0000000000..1b1cb143ae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0641-drm-vc4-hdmi-Silence-pixel-clock-error-on-EPROBE_DEF.patch
@@ -0,0 +1,29 @@
+From ba875ce27cd407bc61502517671623df07bb6c1a Mon Sep 17 00:00:00 2001
+From: James Hilliard <james.hilliard1@gmail.com>
+Date: Fri, 10 Apr 2020 19:24:40 -0600
+Subject: [PATCH] drm/vc4: hdmi: Silence pixel clock error on
+ -EPROBE_DEFER
+
+If the vc4 hdmi driver loads before the pixel clock is available we
+see a spurious "*ERROR* Failed to get pixel clock" error.
+
+Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1493,8 +1493,10 @@ static int vc4_hdmi_init_resources(struc
+ 
+ 	vc4_hdmi->pixel_clock = devm_clk_get(dev, "pixel");
+ 	if (IS_ERR(vc4_hdmi->pixel_clock)) {
+-		DRM_ERROR("Failed to get pixel clock\n");
+-		return PTR_ERR(vc4_hdmi->pixel_clock);
++		ret = PTR_ERR(vc4_hdmi->pixel_clock);
++		if (ret != -EPROBE_DEFER)
++			DRM_ERROR("Failed to get pixel clock\n");
++		return ret;
+ 	}
+ 
+ 	vc4_hdmi->hsm_clock = devm_clk_get(dev, "hdmi");