Commit f79cc88e authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

spi: octeon: Convert to use bits_per_word_mask 



Since commit 543bb255 "spi: add ability to validate xfer->bits_per_word in SPI
core", the driver can set bits_per_word_mask for the master then the SPI core
will reject transfers that attempt to use an unsupported bits_per_word value.
So we can remove octeon_spi_validate_bpw() and let SPI core handle the checking.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent a35c6bea

drivers/spi/spi-octeon.c

+1 −27
Original line number Diff line number Diff line
@@ -161,19 +161,6 @@ static int octeon_spi_do_transfer(struct octeon_spi *p, 
	return xfer->len;

}



static int octeon_spi_validate_bpw(struct spi_device *spi, u32 speed)

{

	switch (speed) {

	case 8:

		break;

	default:

		dev_err(&spi->dev, "Error: %d bits per word not supported\n",

			speed);

		return -EINVAL;

	}

	return 0;

}



static int octeon_spi_transfer_one_message(struct spi_master *master,

					   struct spi_message *msg)

{
@@ -191,15 +178,6 @@ static int octeon_spi_transfer_one_message(struct spi_master *master, 
		goto err;

	}



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

		if (xfer->bits_per_word) {

			status = octeon_spi_validate_bpw(msg->spi,

							 xfer->bits_per_word);

			if (status)

				goto err;

		}

	}



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

		bool last_xfer = &xfer->transfer_list == msg->transfers.prev;

		int r = octeon_spi_do_transfer(p, msg, xfer, last_xfer);
@@ -231,14 +209,9 @@ static struct octeon_spi_setup *octeon_spi_new_setup(struct spi_device *spi) 


static int octeon_spi_setup(struct spi_device *spi)

{

	int r;

	struct octeon_spi_setup *new_setup;

	struct octeon_spi_setup *old_setup = spi_get_ctldata(spi);



	r = octeon_spi_validate_bpw(spi, spi->bits_per_word);

	if (r)

		return r;



	new_setup = octeon_spi_new_setup(spi);

	if (!new_setup)

		return -ENOMEM;
@@ -296,6 +269,7 @@ static int octeon_spi_probe(struct platform_device *pdev) 
	master->setup = octeon_spi_setup;

	master->cleanup = octeon_spi_cleanup;

	master->transfer_one_message = octeon_spi_transfer_one_message;

	master->bits_per_word_mask = SPI_BPW_MASK(8);



	master->dev.of_node = pdev->dev.of_node;

	err = spi_register_master(master);

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