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>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0517-clk-bcm-rpi-Make-sure-the-clkdev-lookup-is-removed.patch b/target/linux/bcm27xx/patches-5.4/950-0517-clk-bcm-rpi-Make-sure-the-clkdev-lookup-is-removed.patch
new file mode 100644
index 0000000000..7c887795ee
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0517-clk-bcm-rpi-Make-sure-the-clkdev-lookup-is-removed.patch
@@ -0,0 +1,34 @@
+From 31fe609e3f5f9d4e52f0f88f8ebfd20fb606c672 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 7 Feb 2020 15:47:13 +0100
+Subject: [PATCH] clk: bcm: rpi: Make sure the clkdev lookup is removed
+
+The clkdev lookup created for the cpufreq device is never removed if
+there's an issue later in probe or at module removal time.
+
+Let's convert to the managed variant of the clk_hw_register_clkdev function
+to make sure it happens.
+
+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 | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -245,8 +245,9 @@ static int raspberrypi_register_pllb_arm
+ 		return ret;
+ 	}
+ 
+-	ret = clk_hw_register_clkdev(&raspberrypi_clk_pllb_arm.hw,
+-				     NULL, "cpu0");
++	ret = devm_clk_hw_register_clkdev(rpi->dev,
++					  &raspberrypi_clk_pllb_arm.hw,
++					  NULL, "cpu0");
+ 	if (ret) {
+ 		dev_err(rpi->dev, "Failed to initialize clkdev\n");
+ 		return ret;