From bde435a9ca376d0b7809768ca803dbf14416b9c1 Mon Sep 17 00:00:00 2001 From: Kevin Wells Date: Thu, 16 Sep 2010 06:18:50 -0700 Subject: spi/pl022: Add spi->mode support to AMBA SPI driver This patch adds spi->mode support for the AMBA pl022 driver and allows spidev to correctly alter SPI modes. Unused fields used in the pl022 header file for the pl022_config_chip have been removed. The ab8500 client driver selects the data transfer size instead of the platform data. For platforms that use the amba pl022 driver, the unused fields in the controller data structure have been removed and the .mode field in the SPI board info structure is used instead. Signed-off-by: Kevin Wells Tested-by: Linus Walleij Acked-by: Linus Walleij Signed-off-by: Grant Likely --- arch/arm/mach-u300/spi.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'arch/arm/mach-u300/spi.c') diff --git a/arch/arm/mach-u300/spi.c b/arch/arm/mach-u300/spi.c index f0e887bea30e..edb2c0d255c2 100644 --- a/arch/arm/mach-u300/spi.c +++ b/arch/arm/mach-u300/spi.c @@ -30,8 +30,6 @@ static void select_dummy_chip(u32 chipselect) } struct pl022_config_chip dummy_chip_info = { - /* Nominally this is LOOPBACK_DISABLED, but this is our dummy chip! */ - .lbm = LOOPBACK_ENABLED, /* * available POLLING_TRANSFER and INTERRUPT_TRANSFER, * DMA_TRANSFER does not work @@ -42,14 +40,8 @@ struct pl022_config_chip dummy_chip_info = { .hierarchy = SSP_MASTER, /* 0 = drive TX even as slave, 1 = do not drive TX as slave */ .slave_tx_disable = 0, - /* LSB first */ - .endian_tx = SSP_TX_LSB, - .endian_rx = SSP_RX_LSB, - .data_size = SSP_DATA_BITS_8, /* used to be 12 in some default */ .rx_lev_trig = SSP_RX_1_OR_MORE_ELEM, .tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC, - .clk_phase = SSP_CLK_SECOND_EDGE, - .clk_pol = SSP_CLK_POL_IDLE_LOW, .ctrl_len = SSP_BITS_12, .wait_state = SSP_MWIRE_WAIT_ZERO, .duplex = SSP_MICROWIRE_CHANNEL_FULL_DUPLEX, @@ -75,7 +67,7 @@ static struct spi_board_info u300_spi_devices[] = { .bus_num = 0, /* Only one bus on this chip */ .chip_select = 0, /* Means SPI_CS_HIGH, change if e.g low CS */ - .mode = 0, + .mode = SPI_MODE_1 | SPI_LSB_FIRST | SPI_LOOP, }, #endif }; -- cgit v1.2.3