[U-Boot] [PATCH v2] spi/kirkwood: add weak functions board_spi_bus_claim/release

[Valentin Longchamp]

Some kirkwood based boards may need to implement such function due to
some HW designs.

Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>
cc: Gerlando Falauto <gerlando.falauto at keymile.com>
cc: Prafulla Wadaskar <prafulla at marvell.com>
cc: Holger Brunck <holger.brunck at keymile.com>
---
 drivers/spi/kirkwood_spi.c |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c
index db8ba8b..058dae2 100644
--- a/drivers/spi/kirkwood_spi.c
+++ b/drivers/spi/kirkwood_spi.c
@@ -86,13 +86,23 @@ void spi_free_slave(struct spi_slave *slave)
 	free(slave);
 }
 
-int spi_claim_bus(struct spi_slave *slave)
+__attribute__((weak)) int board_spi_claim_bus(struct spi_slave *slave)
 {
 	return 0;
 }
 
+int spi_claim_bus(struct spi_slave *slave)
+{
+	return board_spi_claim_bus(slave);
+}
+
+__attribute__((weak)) void board_spi_release_bus(struct spi_slave *slave)
+{
+}
+
 void spi_release_bus(struct spi_slave *slave)
 {
+	board_spi_release_bus(slave);
 }
 
 #ifndef CONFIG_SPI_CS_IS_VALID
-- 
1.7.1