[PATCH v2 7/8] ARM: stm32mp: ddrctrl: add deep-probe support
Marco Felsch
m.felsch at pengutronix.de
Wed Sep 30 04:47:15 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>
---
v2:
- convert to of_devices_ensure_probed_by_dev_id()
- drop use-less deep-probe include
arch/arm/mach-stm32mp/ddrctrl.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-stm32mp/ddrctrl.c b/arch/arm/mach-stm32mp/ddrctrl.c
index 646fe4401a..a7a87ef8f8 100644
--- a/arch/arm/mach-stm32mp/ddrctrl.c
+++ b/arch/arm/mach-stm32mp/ddrctrl.c
@@ -148,4 +148,15 @@ static struct driver_d stm32mp1_ddr_driver = {
.of_compatible = DRV_OF_COMPAT(stm32mp1_ddr_dt_ids),
};
-mem_platform_driver(stm32mp1_ddr_driver);
+static int stm32mp1_ddr_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&stm32mp1_ddr_driver);
+ if (ret)
+ return ret;
+
+ return of_devices_ensure_probed_by_dev_id(of_get_root_node(),
+ stm32mp1_ddr_dt_ids);
+}
+mem_initcall(stm32mp1_ddr_init);
--
2.20.1
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