bcm27xx: update patches from RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2
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>

1 files changed, 40 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0522-clk-bcm-rpi-Make-sure-pllb_arm-is-removed.patch b/target/linux/bcm27xx/patches-5.4/950-0522-clk-bcm-rpi-Make-sure-pllb_arm-is-removed.patch
new file mode 100644
index 0000000000..425830d5c4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0522-clk-bcm-rpi-Make-sure-pllb_arm-is-removed.patch
@@ -0,0 +1,40 @@
+From aeb75ab90c35c7bd9778a71d606d52ac3e8ff02d Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 7 Feb 2020 15:42:40 +0100
+Subject: [PATCH] clk: bcm: rpi: Make sure pllb_arm is removed
+
+The pllb_arm clock was created at probe time, but was never removed if
+something went wrong later in probe, or if the driver was ever removed from
+the system.
+
+Now that we are using clk_hw_register, we can just use its managed variant
+to take care of that for us.
+
+Cc: Michael Turquette <mturquette@baylibre.com>
+Cc: linux-clk@vger.kernel.org
+Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Reviewed-by: Stephen Boyd <sboyd@kernel.org>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/clk/bcm/clk-raspberrypi.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -240,7 +240,7 @@ static int raspberrypi_register_pllb_arm
+ {
+ 	int ret;
+ 
+-	ret = clk_hw_register(rpi->dev, &raspberrypi_clk_pllb_arm.hw);
++	ret = devm_clk_hw_register(rpi->dev, &raspberrypi_clk_pllb_arm.hw);
+ 	if (ret) {
+ 		dev_err(rpi->dev, "Failed to initialize pllb_arm\n");
+ 		return ret;
+@@ -250,7 +250,6 @@ static int raspberrypi_register_pllb_arm
+ 						NULL, "cpu0");
+ 	if (!rpi->pllb_arm_lookup) {
+ 		dev_err(rpi->dev, "Failed to initialize pllb_arm_lookup\n");
+-		clk_hw_unregister_fixed_factor(&raspberrypi_clk_pllb_arm.hw);
+ 		return -ENOMEM;
+ 	}
+