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, 45 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0513-clk-bcm-rpi-Remove-global-pllb_arm-clock-pointer.patch b/target/linux/bcm27xx/patches-5.4/950-0513-clk-bcm-rpi-Remove-global-pllb_arm-clock-pointer.patch
new file mode 100644
index 0000000000..32fc94c675
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0513-clk-bcm-rpi-Remove-global-pllb_arm-clock-pointer.patch
@@ -0,0 +1,45 @@
+From 5272507555c0ecf02c0dfd78303e86e8eb096191 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 7 Feb 2020 15:41:37 +0100
+Subject: [PATCH] clk: bcm: rpi: Remove global pllb_arm clock pointer
+
+The pllb_arm clk_hw pointer in the raspberry_clk structure isn't used
+anywhere but in the raspberrypi_register_pllb_arm.
+
+Let's remove it, this will make our lives easier in future patches.
+
+Cc: Michael Turquette <mturquette@baylibre.com>
+Cc: Stephen Boyd <sboyd@kernel.org>
+Cc: linux-clk@vger.kernel.org
+Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/clk/bcm/clk-raspberrypi.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -40,7 +40,6 @@ struct raspberrypi_clk {
+ 	unsigned long max_rate;
+ 
+ 	struct clk_hw pllb;
+-	struct clk_hw *pllb_arm;
+ 	struct clk_lookup *pllb_arm_lookup;
+ };
+ 
+@@ -246,12 +245,12 @@ static int raspberrypi_register_pllb_arm
+ 		dev_err(rpi->dev, "Failed to initialize pllb_arm\n");
+ 		return ret;
+ 	}
+-	rpi->pllb_arm = &raspberrypi_clk_pllb_arm.hw;
+ 
+-	rpi->pllb_arm_lookup = clkdev_hw_create(rpi->pllb_arm, NULL, "cpu0");
++	rpi->pllb_arm_lookup = clkdev_hw_create(&raspberrypi_clk_pllb_arm.hw,
++						NULL, "cpu0");
+ 	if (!rpi->pllb_arm_lookup) {
+ 		dev_err(rpi->dev, "Failed to initialize pllb_arm_lookup\n");
+-		clk_hw_unregister_fixed_factor(rpi->pllb_arm);
++		clk_hw_unregister_fixed_factor(&raspberrypi_clk_pllb_arm.hw);
+ 		return -ENOMEM;
+ 	}
+