From: Lucas Stach <l.stach@pengutronix.de>
Date: Thu, 4 Jan 2018 13:40:03 +0100
Subject: drm/etnaviv: don't fail to build on arches without PHYS_OFFSET
Git-commit: c09d7f7911aa35570b29674f72077e1342260970
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Some architecture ports like ARC don't provide the PHYS_OFFSET symbol.
Define it to 0 in that case, which is the most conservative default in
the usage context of the etnaviv driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -31,6 +31,10 @@
 #include "state_hi.xml.h"
 #include "cmdstream.xml.h"
 
+#ifndef PHYS_OFFSET
+#define PHYS_OFFSET 0
+#endif
+
 static const struct platform_device_id gpu_ids[] = {
 	{ .name = "etnaviv-gpu,2d" },
 	{ },