bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

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

1 files changed, 25 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0364-clk-raspberrypi-Allow-cpufreq-driver-to-also-adjust-.patch b/target/linux/bcm27xx/patches-5.4/950-0364-clk-raspberrypi-Allow-cpufreq-driver-to-also-adjust-.patch
new file mode 100644
index 0000000000..31978c761a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0364-clk-raspberrypi-Allow-cpufreq-driver-to-also-adjust-.patch
@@ -0,0 +1,25 @@
+From 3e2eb77ba8d0c6913138382512309e7892907a1c Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 9 Sep 2019 15:49:56 +0100
+Subject: [PATCH] clk-raspberrypi: Allow cpufreq driver to also adjust
+ gpu clocks
+
+For performance/power it is beneficial to adjust gpu clocks with arm clock.
+This is how the downstream cpufreq driver works
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/clk/bcm/clk-raspberrypi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -70,7 +70,7 @@ static int raspberrypi_clock_property(st
+ 	struct raspberrypi_firmware_prop msg = {
+ 		.id = cpu_to_le32(clk),
+ 		.val = cpu_to_le32(*val),
+-		.disable_turbo = cpu_to_le32(1),
++		.disable_turbo = cpu_to_le32(0),
+ 	};
+ 	int ret;
+