From 24934fea0c6248ac33ccf398dd1a86e0b9904eeb Mon Sep 17 00:00:00 2001 From: Valentin Longchamp Date: Fri, 1 Jun 2012 01:31:03 +0000 Subject: [PATCH] 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 cc: Holger Brunck cc: Prafulla Wadaskar --- drivers/spi/kirkwood_spi.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c index db4bb0ae61..f4523a3929 100644 --- a/drivers/spi/kirkwood_spi.c +++ b/drivers/spi/kirkwood_spi.c @@ -87,6 +87,11 @@ 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) @@ -118,7 +123,11 @@ int spi_claim_bus(struct spi_slave *slave) #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) @@ -126,6 +135,8 @@ void spi_release_bus(struct spi_slave *slave) #if defined(CONFIG_SYS_KW_SPI_MPP) kirkwood_mpp_conf(spi_mpp_backup, NULL); #endif + + board_spi_release_bus(slave); } #ifndef CONFIG_SPI_CS_IS_VALID -- 2.39.2