[PATCH] memory: omap-gpmc: Fix build error without CONFIG_OF

[YueHaibing]

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 helper function to fix this.

Fixes: a758f50f10cf ("mtd: onenand: omap2: Configure driver from DT")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/memory/omap-gpmc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index ce0e7e2d7cff..332bb4580817 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -1176,6 +1176,7 @@ struct gpmc_nand_ops *gpmc_omap_get_nand_ops(struct gpmc_nand_regs *reg, int cs)
 }
 EXPORT_SYMBOL_GPL(gpmc_omap_get_nand_ops);
 
+#ifdef CONFIG_OF
 static void gpmc_omap_onenand_calc_sync_timings(struct gpmc_timings *t,
 						struct gpmc_settings *s,
 						int freq, int latency)
@@ -1280,6 +1281,14 @@ int gpmc_omap_onenand_set_timings(struct device *dev, int cs, int freq,
 
 	return gpmc_cs_set_timings(cs, &gpmc_t, &gpmc_s);
 }
+#else
+int gpmc_omap_onenand_set_timings(struct device *dev, int cs, int freq,
+				  int latency,
+				  struct gpmc_onenand_info *info)
+{
+	return -EINVAL;
+}
+#endif
 EXPORT_SYMBOL_GPL(gpmc_omap_onenand_set_timings);
 
 int gpmc_get_client_irq(unsigned int irq_config)
-- 
2.17.1