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Commit 3531b717 authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

spi: coldfire-qspi: Use core message handling 



Convert to use default implementation of transfer_one_message().

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 8bd31345

drivers/spi/spi-coldfire-qspi.c

+34 −47
Original line number Diff line number Diff line
@@ -298,16 +298,22 @@ static void mcfqspi_transfer_msg16(struct mcfqspi *mcfqspi, unsigned count, 
	}

}



static int mcfqspi_transfer_one_message(struct spi_master *master,

					 struct spi_message *msg)

static void mcfqspi_set_cs(struct spi_device *spi, bool enable)

{

	struct mcfqspi *mcfqspi = spi_master_get_devdata(master);

	struct spi_device *spi = msg->spi;

	struct spi_transfer *t;

	int status = 0;



	list_for_each_entry(t, &msg->transfers, transfer_list) {

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

	bool cs_high = spi->mode & SPI_CS_HIGH;



	if (enable)

		mcfqspi_cs_select(mcfqspi, spi->chip_select, cs_high);

	else

		mcfqspi_cs_deselect(mcfqspi, spi->chip_select, cs_high);

}



static int mcfqspi_transfer_one(struct spi_master *master,

				struct spi_device *spi,

				struct spi_transfer *t)

{

	struct mcfqspi *mcfqspi = spi_master_get_devdata(master);

	u16 qmr = MCFQSPI_QMR_MSTR;



	qmr |= t->bits_per_word << 10;
@@ -321,35 +327,15 @@ static int mcfqspi_transfer_one_message(struct spi_master *master, 
		qmr |= mcfqspi_qmr_baud(spi->max_speed_hz);

	mcfqspi_wr_qmr(mcfqspi, qmr);



		mcfqspi_cs_select(mcfqspi, spi->chip_select, cs_high);



	mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE);

	if (t->bits_per_word == 8)

			mcfqspi_transfer_msg8(mcfqspi, t->len, t->tx_buf,

					t->rx_buf);

		mcfqspi_transfer_msg8(mcfqspi, t->len, t->tx_buf, t->rx_buf);

	else

		mcfqspi_transfer_msg16(mcfqspi, t->len / 2, t->tx_buf,

				       t->rx_buf);

	mcfqspi_wr_qir(mcfqspi, 0);



		if (t->delay_usecs)

			udelay(t->delay_usecs);

		if (t->cs_change) {

			if (!list_is_last(&t->transfer_list, &msg->transfers))

				mcfqspi_cs_deselect(mcfqspi, spi->chip_select,

						cs_high);

		} else {

			if (list_is_last(&t->transfer_list, &msg->transfers))

				mcfqspi_cs_deselect(mcfqspi, spi->chip_select,

						cs_high);

		}

		msg->actual_length += t->len;

	}

	msg->status = status;

	spi_finalize_current_message(master);



	return status;



	return 0;

}



static int mcfqspi_setup(struct spi_device *spi)
@@ -438,7 +424,8 @@ static int mcfqspi_probe(struct platform_device *pdev) 
	master->mode_bits = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA;

	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);

	master->setup = mcfqspi_setup;

	master->transfer_one_message = mcfqspi_transfer_one_message;

	master->set_cs = mcfqspi_set_cs;

	master->transfer_one = mcfqspi_transfer_one;

	master->auto_runtime_pm = true;



	platform_set_drvdata(pdev, master);