From f2bf4e849315c1573f996d082c53c6b686054da7 Mon Sep 17 00:00:00 2001 From: Brian Niebuhr Date: Fri, 20 Aug 2010 15:28:23 +0530 Subject: [PATCH] spi: davinci: remove unnecessary 'count' variable in driver private data The variable count in DaVinci SPI driver's private data is largely unused and its minor use can easily be eliminated. Remove the variable. Signed-off-by: Brian Niebuhr Tested-By: Michael Williamson Signed-off-by: Sekhar Nori --- drivers/spi/davinci_spi.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c index 1169e8e7462e..ad814f2512f0 100644 --- a/drivers/spi/davinci_spi.c +++ b/drivers/spi/davinci_spi.c @@ -142,7 +142,6 @@ struct davinci_spi { const void *tx; void *rx; u8 *tmp_buf; - int count; struct davinci_spi_dma *dma_channels; struct davinci_spi_platform_data *pdata; @@ -630,8 +629,6 @@ static int davinci_spi_bufs_pio(struct spi_device *spi, struct spi_transfer *t) /* convert len to words based on bits_per_word */ conv = davinci_spi->bytes_per_word[spi->chip_select]; - davinci_spi->count = t->len / conv; - data1_reg_val = ioread32(davinci_spi->base + SPIDAT1); INIT_COMPLETION(davinci_spi->done); @@ -643,7 +640,7 @@ static int davinci_spi_bufs_pio(struct spi_device *spi, struct spi_transfer *t) /* Enable SPI */ set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK); - count = davinci_spi->count; + count = t->len / conv; /* Determine the command to execute READ or WRITE */ if (t->tx_buf) { @@ -699,7 +696,7 @@ static int davinci_spi_bufs_pio(struct spi_device *spi, struct spi_transfer *t) } else { /* Receive in Interrupt mode */ int i; - for (i = 0; i < davinci_spi->count; i++) { + for (i = 0; i < count; i++) { set_io_bits(davinci_spi->base + SPIINT, SPIINT_BITERR_INTR | SPIINT_OVRRUN_INTR @@ -754,7 +751,6 @@ static int davinci_spi_bufs_dma(struct spi_device *spi, struct spi_transfer *t) /* convert len to words based on bits_per_word */ data_type = davinci_spi->bytes_per_word[spi->chip_select]; - davinci_spi->count = t->len / data_type; data1_reg_val = ioread32(davinci_spi->base + SPIDAT1); @@ -767,7 +763,7 @@ static int davinci_spi_bufs_dma(struct spi_device *spi, struct spi_transfer *t) if (ret) return ret; - count = davinci_spi->count; /* the number of elements */ + count = t->len / data_type; /* the number of elements */ /* disable all interrupts for dma transfers */ clear_io_bits(davinci_spi->base + SPIINT, SPIINT_MASKALL); -- 2.34.1