From 364fdbc00fbdd409ade63500710123fe323aa164 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 31 Mar 2009 15:24:36 -0700 Subject: spi_mpc83xx: rework chip selects handling The main purpose of this patch is to pass 'struct spi_device' to the chip select handling routines. This is needed so that we could implement full-fledged OpenFirmware support for this driver. While at it, also: - Replace two {de,activate}_cs routines by single cs_contol(). - Don't duplicate platform data callbacks in mpc83xx_spi struct. Signed-off-by: Anton Vorontsov Cc: David Brownell Cc: Benjamin Herrenschmidt Cc: Kumar Gala Cc: Grant Likely Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/platforms/83xx/mpc832x_rdb.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) (limited to 'arch/powerpc/platforms/83xx') diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c index 2a1295f19832..28e23cde64a1 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c @@ -39,16 +39,10 @@ #endif #ifdef CONFIG_QUICC_ENGINE -static void mpc83xx_spi_activate_cs(u8 cs, u8 polarity) +static void mpc83xx_spi_cs_control(struct spi_device *spi, bool on) { - pr_debug("%s %d %d\n", __func__, cs, polarity); - par_io_data_set(3, 13, polarity); -} - -static void mpc83xx_spi_deactivate_cs(u8 cs, u8 polarity) -{ - pr_debug("%s %d %d\n", __func__, cs, polarity); - par_io_data_set(3, 13, !polarity); + pr_debug("%s %d %d\n", __func__, spi->chip_select, on); + par_io_data_set(3, 13, on); } static struct mmc_spi_platform_data mpc832x_mmc_pdata = { @@ -74,9 +68,7 @@ static int __init mpc832x_spi_init(void) par_io_config_pin(3, 14, 2, 0, 0, 0); /* SD_INSERT, I */ par_io_config_pin(3, 15, 2, 0, 0, 0); /* SD_PROTECT,I */ - return fsl_spi_init(&mpc832x_spi_boardinfo, 1, - mpc83xx_spi_activate_cs, - mpc83xx_spi_deactivate_cs); + return fsl_spi_init(&mpc832x_spi_boardinfo, 1, mpc83xx_spi_cs_control); } machine_device_initcall(mpc832x_rdb, mpc832x_spi_init); #endif /* CONFIG_QUICC_ENGINE */ -- cgit v1.2.3