-----Original Message----- From: Valentin Longchamp [mailto:valentin.longchamp@keymile.com] Sent: 30 May 2012 21:12 To: Prafulla Wadaskar Cc: Valentin Longchamp; holger.brunck@keymile.com; u- boot@lists.denx.de; Prafulla Wadaskar Subject: [PATCH v2 4/4] kw_spi: add weak functions board_spi_claim/release_bus
This allows a final, board specific, step in the claim/relase_bus function for the SPI controller, which may be needed for some hardware designs.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com cc: Holger Brunck holger.brunck@keymile.com cc: Prafulla Wadaskar prafulla@marvell.com
drivers/spi/kirkwood_spi.c | 13 ++++++++++++- 1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c index a3e6b6e..a0da527 100644 --- a/drivers/spi/kirkwood_spi.c +++ b/drivers/spi/kirkwood_spi.c @@ -88,6 +88,11 @@ void spi_free_slave(struct spi_slave *slave) u32 spi_mpp_backup[4]; #endif
+__attribute__((weak)) int board_spi_claim_bus(struct spi_slave *slave) +{
- return 0;
+}
int spi_claim_bus(struct spi_slave *slave) { #if defined(CONFIG_SYS_KW_SPI_MPP) @@ -121,7 +126,11 @@ int spi_claim_bus(struct spi_slave *slave) kirkwood_mpp_conf(spi_mpp_config); #endif
- return 0;
- 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) @@ -129,6 +138,8 @@ void spi_release_bus(struct spi_slave *slave) #if defined(CONFIG_SYS_KW_SPI_MPP) kirkwood_mpp_conf(spi_mpp_backup); #endif
- board_spi_release_bus(slave);
}
#ifndef CONFIG_SPI_CS_IS_VALID
1.7.1
Acked-By: Prafulla Wadaskar Prafulla@marvell.com
Regards.. Prafulla . . .