[PATCH 5.9 591/757] memory: omap-gpmc: Fix build error without CONFIG_OF

[Greg Kroah-Hartman]

From: YueHaibing <yuehaibing@xxxxxxxxxx>

[ Upstream commit 13d029ee51da365aa9c859db0c7395129252bde8 ]

If CONFIG_OF is n, gcc fails:

drivers/memory/omap-gpmc.o: In function `gpmc_omap_onenand_set_timings':
    omap-gpmc.c:(.text+0x2a88): undefined reference to `gpmc_read_settings_dt'

Add gpmc_read_settings_dt() helper function, which zero the gpmc_settings
so the caller doesn't proceed with random/invalid settings.

Fixes: a758f50f10cf ("mtd: onenand: omap2: Configure driver from DT")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Acked-by: Roger Quadros <rogerq@xxxxxx>
Link: https://lore.kernel.org/r/20200827125316.20780-1-yuehaibing@xxxxxxxxxx
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/memory/omap-gpmc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 1e6d6e9434c8b..057666e1b6cda 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -2265,6 +2265,10 @@ static void gpmc_probe_dt_children(struct platform_device *pdev)
 	}
 }
 #else
+void gpmc_read_settings_dt(struct device_node *np, struct gpmc_settings *p)
+{
+	memset(p, 0, sizeof(*p));
+}
 static int gpmc_probe_dt(struct platform_device *pdev)
 {
 	return 0;
-- 
2.25.1