[U-Boot] [PATCH 1/2] dm: spi: Return 0 if driver does not implement ops->cs_info

[Bin Meng]

If an SPI controller driver does not implement ops->cs_info, that
probably means any chip select number could be valid, hence let's
return 0 for spi_cs_info().

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---

 drivers/spi/spi-uclass.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c
index 88cb2a1..24de0b5 100644
--- a/drivers/spi/spi-uclass.c
+++ b/drivers/spi/spi-uclass.c
@@ -237,11 +237,10 @@ int spi_cs_info(struct udevice *bus, uint cs, struct spi_cs_info *info)
 		return ops->cs_info(bus, cs, info);
 
 	/*
-	 * We could assume there is at least one valid chip select, but best
-	 * to be sure and return an error in this case. The driver didn't
-	 * care enough to tell us.
+	 * We could assume there is at least one valid chip select.
+	 * The driver didn't care enough to tell us.
 	 */
-	return -ENODEV;
+	return 0;
 }
 
 int spi_find_bus_and_cs(int busnum, int cs, struct udevice **busp,
-- 
2.7.4