brcm2708: add linux 4.19 support

Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

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

1 files changed, 59 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0590-drm-v3d-Update-to-upstream-IRQ-code.patch b/target/linux/brcm2708/patches-4.19/950-0590-drm-v3d-Update-to-upstream-IRQ-code.patch
new file mode 100644
index 0000000000..2cb16a97e6
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0590-drm-v3d-Update-to-upstream-IRQ-code.patch
@@ -0,0 +1,59 @@
+From 97f75af520bb5c124641b0704ebbd171f80d0bfb Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Tue, 12 Mar 2019 09:08:10 -0700
+Subject: [PATCH 590/703] drm/v3d: Update to upstream IRQ code.
+
+---
+ drivers/gpu/drm/v3d/v3d_irq.c | 25 +++++++++++++++----------
+ 1 file changed, 15 insertions(+), 10 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_irq.c
++++ b/drivers/gpu/drm/v3d/v3d_irq.c
+@@ -168,7 +168,7 @@ v3d_hub_irq(int irq, void *arg)
+ int
+ v3d_irq_init(struct v3d_dev *v3d)
+ {
+-	int ret, core;
++	int irq1, ret, core;
+ 
+ 	INIT_WORK(&v3d->overflow_mem_work, v3d_overflow_mem_work);
+ 
+@@ -179,24 +179,29 @@ v3d_irq_init(struct v3d_dev *v3d)
+ 		V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
+ 	V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
+ 
+-	if (platform_get_irq(v3d->pdev, 1) < 0) {
+-		ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
++	irq1 = platform_get_irq(v3d->pdev, 1);
++	if (irq1 == -EPROBE_DEFER)
++		return irq1;
++	if (irq1 > 0) {
++		ret = devm_request_irq(v3d->dev, irq1,
+ 				       v3d_irq, IRQF_SHARED,
+-				       "v3d", v3d);
+-		v3d->single_irq_line = true;
+-	} else {
++				       "v3d_core0", v3d);
++		if (ret)
++			goto fail;
+ 		ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
+ 				       v3d_hub_irq, IRQF_SHARED,
+ 				       "v3d_hub", v3d);
+ 		if (ret)
+ 			goto fail;
++	} else {
++		v3d->single_irq_line = true;
+ 
+-		ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 1),
++		ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
+ 				       v3d_irq, IRQF_SHARED,
+-				       "v3d_core0", v3d);
++				       "v3d", v3d);
++		if (ret)
++			goto fail;
+ 	}
+-	if (ret)
+-		goto fail;
+ 
+ 	v3d_irq_enable(v3d);
+ 	return 0;