From: Geert Uytterhoeven Date: Tue, 25 Feb 2014 10:21:12 +0000 (+0100) Subject: spi: sh-msiof: Convert to let spi core validate xfer->bits_per_word X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=2416289c714343ea855e725d59d42668a9ab3cf6;p=deliverable%2Flinux.git spi: sh-msiof: Convert to let spi core validate xfer->bits_per_word Set bits_per_word_mask so the spi core will reject transfers that attempt to use an unsupported bits_per_word value. Signed-off-by: Geert Uytterhoeven Acked-by: Magnus Damm Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index efeda03bbace..a0380b7c977f 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -439,22 +439,6 @@ static u32 sh_msiof_spi_hz(struct spi_device *spi, struct spi_transfer *t) return hz; } -static int sh_msiof_spi_setup_transfer(struct spi_device *spi, - struct spi_transfer *t) -{ - int bits; - - /* noting to check hz values against since parent clock is disabled */ - - bits = sh_msiof_spi_bits(spi, t); - if (bits < 8) - return -EINVAL; - if (bits > 32) - return -EINVAL; - - return spi_bitbang_setup_transfer(spi, t); -} - static int sh_msiof_spi_setup(struct spi_device *spi) { struct device_node *np = spi->master->dev.of_node; @@ -826,10 +810,11 @@ static int sh_msiof_spi_probe(struct platform_device *pdev) master->cleanup = spi_bitbang_cleanup; master->prepare_message = sh_msiof_prepare_message; master->unprepare_message = sh_msiof_unprepare_message; + master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 32); p->bitbang.master = master; p->bitbang.chipselect = sh_msiof_spi_chipselect; - p->bitbang.setup_transfer = sh_msiof_spi_setup_transfer; + p->bitbang.setup_transfer = spi_bitbang_setup_transfer; p->bitbang.txrx_bufs = sh_msiof_spi_txrx; p->bitbang.txrx_word[SPI_MODE_0] = sh_msiof_spi_txrx_word; p->bitbang.txrx_word[SPI_MODE_1] = sh_msiof_spi_txrx_word;