[PATCH 16/18] ARM: i.MX: esdctl: add deep-probe support

Marco Felsch m.felsch at pengutronix.de
Mon Sep 28 11:50:39 EDT 2020


In case of deep-probe we have to ensure that the memory device is
available after the mem_initcall().

Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>
---
 arch/arm/mach-imx/esdctl.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/esdctl.c b/arch/arm/mach-imx/esdctl.c
index cc5d3a8359..3819c1a9a6 100644
--- a/arch/arm/mach-imx/esdctl.c
+++ b/arch/arm/mach-imx/esdctl.c
@@ -14,6 +14,7 @@
  */
 
 #include <common.h>
+#include <deep-probe.h>
 #include <io.h>
 #include <errno.h>
 #include <linux/sizes.h>
@@ -705,9 +706,20 @@ static struct driver_d imx_esdctl_driver = {
 
 static int imx_esdctl_init(void)
 {
-	return platform_driver_register(&imx_esdctl_driver);
-}
+	struct device_d *dev;
+	int ret;
+
+	ret = platform_driver_register(&imx_esdctl_driver);
+	if (ret)
+		return ret;
+
+	dev = of_device_create_on_demand_by_dev_id(of_get_root_node(),
+						   imx_esdctl_dt_ids);
+	if (IS_ERR(dev))
+		return PTR_ERR(dev);
 
+	return 0;
+}
 mem_initcall(imx_esdctl_init);
 
 /*
-- 
2.20.1




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