From 6d6af5796e5d9a88ae83c9c753023bba61deb18b Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Thu, 5 Mar 2020 00:00:34 +0200 Subject: [PATCH] spi: spi-fsl-dspi: Remove unused chip->void_write_data This variable has been present since the initial submission of the driver, and held, for some reason, the value of zero, to be sent on the wire in the case there wasn't any TX buffer for the current transfer. Since quite a while now, however, it isn't doing anything at all. Signed-off-by: Vladimir Oltean Link: https://lore.kernel.org/r/20200304220044.11193-3-olteanv@gmail.com Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-dspi.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 896d7a0..63ec1d6 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -110,7 +110,6 @@ struct chip_data { u32 ctar_val; - u16 void_write_data; }; enum dspi_trans_mode { @@ -235,7 +234,6 @@ struct fsl_dspi { const void *tx; void *rx; void *rx_end; - u16 void_write_data; u16 tx_cmd; u8 bits_per_word; u8 bytes_per_word; @@ -795,8 +793,6 @@ static int dspi_transfer_one_message(struct spi_controller *ctlr, dspi->tx_cmd |= SPI_PUSHR_CMD_CONT; } - dspi->void_write_data = dspi->cur_chip->void_write_data; - dspi->tx = transfer->tx_buf; dspi->rx = transfer->rx_buf; dspi->rx_end = dspi->rx + transfer->len; @@ -897,8 +893,6 @@ static int dspi_setup(struct spi_device *spi) sck_cs_delay = pdata->sck_cs_delay; } - chip->void_write_data = 0; - clkrate = clk_get_rate(dspi->clk); hz_to_spi_baud(&pbr, &br, spi->max_speed_hz, clkrate); -- 2.7.4