[RFC,2/4] of: unittest: add test for of_dma_get_cpu_limits() 'min' param

Commit Message

Baruch Siach Dec. 27, 2023, 3:04 p.m. UTC

Verify that of_dma_get_cpu_limits() sets this new parameter to the
expected result.

Signed-off-by: Baruch Siach <[e-mail]>
---
 drivers/of/unittest.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

Patch

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 21d273a05ba6..d3b2c6ca56cd 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -911,7 +911,7 @@  static void __init of_unittest_changeset(void)
 static void __init of_unittest_dma_get_cpu_limits(void)
 {
 	struct device_node *np;
-	phys_addr_t cpu_addr;
+	phys_addr_t cpu_addr_max, cpu_addr_min;
 
 	if (!IS_ENABLED(CONFIG_OF_ADDRESS))
 		return;
@@ -922,10 +922,13 @@  static void __init of_unittest_dma_get_cpu_limits(void)
 		return;
 	}
 
-	of_dma_get_cpu_limits(np, &cpu_addr, NULL);
-	unittest(cpu_addr == 0x4fffffff,
-		 "of_dma_get_cpu_limits: wrong CPU addr %pad (expecting %x)\n",
-		 &cpu_addr, 0x4fffffff);
+	of_dma_get_cpu_limits(np, &cpu_addr_max, &cpu_addr_min);
+	unittest(cpu_addr_max == 0x4fffffff,
+		 "of_dma_get_cpu_limits: wrong CPU max addr %pad (expecting %x)\n",
+		 &cpu_addr_max, 0x4fffffff);
+	unittest(cpu_addr_min == 0x40000000,
+		 "of_dma_get_cpu_limits: wrong CPU min addr %pad (expecting %x)\n",
+		 &cpu_addr_min, 0x40000000);
 }
 
 static void __init of_unittest_dma_ranges_one(const char *path,