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, 40 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0521-clk-bcm-rpi-Rename-is_prepared-function.patch b/target/linux/bcm27xx/patches-5.4/950-0521-clk-bcm-rpi-Rename-is_prepared-function.patch
new file mode 100644
index 0000000000..1a6c9813de
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0521-clk-bcm-rpi-Rename-is_prepared-function.patch
@@ -0,0 +1,40 @@
+From c37a4cc3fc34b6c53c331d0d079df322082ff183 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 20 Feb 2020 12:45:47 +0100
+Subject: [PATCH] clk: bcm: rpi: Rename is_prepared function
+
+The raspberrypi_fw_pll_is_on function doesn't only apply to PLL
+registered in the driver, but any clock exposed by the firmware.
+
+Since we also implement the is_prepared hook, make the function
+consistent with the other function names.
+
+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 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -87,7 +87,7 @@ static int raspberrypi_clock_property(st
+ 	return 0;
+ }
+ 
+-static int raspberrypi_fw_pll_is_on(struct clk_hw *hw)
++static int raspberrypi_fw_is_prepared(struct clk_hw *hw)
+ {
+ 	struct raspberrypi_clk_data *data =
+ 		container_of(hw, struct raspberrypi_clk_data, hw);
+@@ -170,7 +170,7 @@ static int raspberrypi_pll_determine_rat
+ }
+ 
+ static const struct clk_ops raspberrypi_firmware_pll_clk_ops = {
+-	.is_prepared = raspberrypi_fw_pll_is_on,
++	.is_prepared = raspberrypi_fw_is_prepared,
+ 	.recalc_rate = raspberrypi_fw_pll_get_rate,
+ 	.set_rate = raspberrypi_fw_pll_set_rate,
+ 	.determine_rate = raspberrypi_pll_determine_rate,