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Commit 5bcc6a2f authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Mark Brown
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spi: fsl-espi: merge fsl_espi_bufs and fsl_espi_cpu_bufs 



fsl_espi_bufs and fsl_espi_cpu_bufs are very small that we can merge them.

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 84ccfc37

drivers/spi/spi-fsl-espi.c

+8 −19
Original line number Diff line number Diff line
@@ -206,31 +206,15 @@ static void fsl_espi_setup_transfer(struct spi_device *spi, 
	fsl_espi_change_mode(spi);

}



static void fsl_espi_cpu_bufs(struct mpc8xxx_spi *mspi, struct spi_transfer *t,

		unsigned int len)

{

	u32 word;

	struct fsl_espi_reg *reg_base = mspi->reg_base;



	mspi->count = len;



	/* enable rx ints */

	mpc8xxx_spi_write_reg(&reg_base->mask, SPIM_NE);



	/* transmit word */

	word = mspi->get_tx(mspi);

	mpc8xxx_spi_write_reg(&reg_base->transmit, word);

}



static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)

{

	struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);

	struct fsl_espi_reg *reg_base = mpc8xxx_spi->reg_base;

	unsigned int len = t->len;

	u32 word;

	int ret;



	mpc8xxx_spi->len = t->len;

	len = roundup(len, 4) / 4;

	mpc8xxx_spi->count = roundup(t->len, 4) / 4;



	mpc8xxx_spi->tx = t->tx_buf;

	mpc8xxx_spi->rx = t->rx_buf;
@@ -246,7 +230,12 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t) 
	mpc8xxx_spi_write_reg(&reg_base->command,

		(SPCOM_CS(spi->chip_select) | SPCOM_TRANLEN(t->len - 1)));



	fsl_espi_cpu_bufs(mpc8xxx_spi, t, len);

	/* enable rx ints */

	mpc8xxx_spi_write_reg(&reg_base->mask, SPIM_NE);



	/* transmit word */

	word = mpc8xxx_spi->get_tx(mpc8xxx_spi);

	mpc8xxx_spi_write_reg(&reg_base->transmit, word);



	/* Won't hang up forever, SPI bus sometimes got lost interrupts... */

	ret = wait_for_completion_timeout(&mpc8xxx_spi->done, 2 * HZ);