From: Andy Shevchenko Date: Tue, 24 Feb 2015 11:32:11 +0000 (+0200) Subject: spi: dw: get TX level without an additional variable X-Git-Tag: v4.1-rc1~163^2~4^4~17 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=ea11370fffdfedbd0cca0fce17907d2c993246bc;p=linux.git spi: dw: get TX level without an additional variable There is no need to have an additional variable to get a TX level. The patch refactors this piece of code. Signed-off-by: Andy Shevchenko Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 29157f00f45a..0febb97ae32f 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -365,7 +365,7 @@ static void pump_transfers(unsigned long data) u8 bits = 0; u8 imask = 0; u8 cs_change = 0; - u16 txint_level = 0; + u16 txlevel = 0; u16 clk_div = 0; u32 speed = 0; u32 cr0 = 0; @@ -461,10 +461,7 @@ static void pump_transfers(unsigned long data) * we only need set the TXEI IRQ, as TX/RX always happen syncronizely */ if (!dws->dma_mapped && !chip->poll_mode) { - int templen = dws->len / dws->n_bytes; - - txint_level = dws->fifo_len / 2; - txint_level = (templen > txint_level) ? txint_level : templen; + txlevel = min_t(u16, dws->fifo_len / 2, dws->len / dws->n_bytes); imask |= SPI_INT_TXEI | SPI_INT_TXOI | SPI_INT_RXUI | SPI_INT_RXOI; @@ -490,8 +487,8 @@ static void pump_transfers(unsigned long data) spi_mask_intr(dws, 0xff); if (imask) spi_umask_intr(dws, imask); - if (txint_level) - dw_writew(dws, DW_SPI_TXFLTR, txint_level); + if (txlevel) + dw_writew(dws, DW_SPI_TXFLTR, txlevel); spi_enable_chip(dws, 1); }