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author | Heiner Kallweit <hkallweit1@gmail.com> | 2016-09-07 22:52:06 +0200 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2016-09-12 19:58:45 +0100 |
commit | faceef390702bad8bdf9c93554a3364253d9d943 (patch) | |
tree | aee736ce5d06587585d1548387e88f02671a7870 /drivers/spi/spi-fsl-espi.c | |
parent | 5cd7b8be6b7b4c4fb9e2bfbfba596d27357cc359 (diff) | |
download | linux-stable-faceef390702bad8bdf9c93554a3364253d9d943.tar.gz linux-stable-faceef390702bad8bdf9c93554a3364253d9d943.tar.bz2 linux-stable-faceef390702bad8bdf9c93554a3364253d9d943.zip |
spi: fsl-espi: eliminate struct fsl_espi_transfer
The remaining elements of struct fsl_espi_transfer are part of struct
spi_transfer anyway. So we can get rid of struct fsl_espi_transfer
and use a struct spi_transfer only.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-fsl-espi.c')
-rw-r--r-- | drivers/spi/spi-fsl-espi.c | 56 |
1 files changed, 20 insertions, 36 deletions
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index 726d5fdca3b6..8554f18e4cf6 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -37,12 +37,6 @@ struct fsl_espi_reg { __be32 csmode[4]; /* 0x020 - 0x02c eSPI cs mode register */ }; -struct fsl_espi_transfer { - const void *tx_buf; - void *rx_buf; - unsigned len; -}; - /* eSPI Controller mode register definitions */ #define SPMODE_ENABLE (1 << 31) #define SPMODE_LOOP (1 << 30) @@ -267,17 +261,13 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t) return mpc8xxx_spi->count; } -static int fsl_espi_do_trans(struct spi_message *m, - struct fsl_espi_transfer *tr) +static int fsl_espi_do_trans(struct spi_message *m, struct spi_transfer *trans) { struct spi_device *spi = m->spi; struct mpc8xxx_spi *mspi = spi_master_get_devdata(spi->master); - struct fsl_espi_transfer *espi_trans = tr; - struct spi_transfer *t, *first, trans; + struct spi_transfer *t, *first; int ret = 0; - memset(&trans, 0, sizeof(trans)); - first = list_first_entry(&m->transfers, struct spi_transfer, transfer_list); list_for_each_entry(t, &m->transfers, transfer_list) { @@ -288,25 +278,21 @@ static int fsl_espi_do_trans(struct spi_message *m, return -EINVAL; } - trans.speed_hz = t->speed_hz; - trans.bits_per_word = t->bits_per_word; - trans.delay_usecs = max(first->delay_usecs, t->delay_usecs); + trans->speed_hz = t->speed_hz; + trans->bits_per_word = t->bits_per_word; + trans->delay_usecs = max(first->delay_usecs, t->delay_usecs); } - trans.len = espi_trans->len; - trans.tx_buf = espi_trans->tx_buf; - trans.rx_buf = espi_trans->rx_buf; - - fsl_espi_setup_transfer(spi, &trans); + fsl_espi_setup_transfer(spi, trans); - if (trans.len) - ret = fsl_espi_bufs(spi, &trans); + if (trans->len) + ret = fsl_espi_bufs(spi, trans); if (ret) ret = -EMSGSIZE; - if (trans.delay_usecs) - udelay(trans.delay_usecs); + if (trans->delay_usecs) + udelay(trans->delay_usecs); fsl_espi_setup_transfer(spi, NULL); @@ -314,23 +300,22 @@ static int fsl_espi_do_trans(struct spi_message *m, } static int fsl_espi_cmd_trans(struct spi_message *m, - struct fsl_espi_transfer *trans, u8 *rx_buff) + struct spi_transfer *trans, u8 *rx_buff) { struct mpc8xxx_spi *mspi = spi_master_get_devdata(m->spi->master); - struct fsl_espi_transfer *espi_trans = trans; int ret; fsl_espi_copy_to_buf(m, mspi); - espi_trans->tx_buf = mspi->local_buf; - espi_trans->rx_buf = mspi->local_buf; - ret = fsl_espi_do_trans(m, espi_trans); + trans->tx_buf = mspi->local_buf; + trans->rx_buf = mspi->local_buf; + ret = fsl_espi_do_trans(m, trans); return ret; } static int fsl_espi_rw_trans(struct spi_message *m, - struct fsl_espi_transfer *trans, u8 *rx_buff) + struct spi_transfer *trans, u8 *rx_buff) { struct mpc8xxx_spi *mspi = spi_master_get_devdata(m->spi->master); unsigned int tx_only; @@ -355,10 +340,9 @@ static int fsl_espi_rw_trans(struct spi_message *m, static int fsl_espi_do_one_msg(struct spi_master *master, struct spi_message *m) { - struct spi_transfer *t; u8 *rx_buf = NULL; unsigned int xfer_len = 0; - struct fsl_espi_transfer espi_trans; + struct spi_transfer *t, trans = {}; int ret; list_for_each_entry(t, &m->transfers, transfer_list) { @@ -368,14 +352,14 @@ static int fsl_espi_do_one_msg(struct spi_master *master, xfer_len += t->len; } - espi_trans.len = xfer_len; + trans.len = xfer_len; if (!rx_buf) - ret = fsl_espi_cmd_trans(m, &espi_trans, NULL); + ret = fsl_espi_cmd_trans(m, &trans, NULL); else - ret = fsl_espi_rw_trans(m, &espi_trans, rx_buf); + ret = fsl_espi_rw_trans(m, &trans, rx_buf); - m->actual_length = ret ? 0 : espi_trans.len; + m->actual_length = ret ? 0 : trans.len; if (m->status == -EINPROGRESS) m->status = ret; |