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| author | Moritz Fischer <mdf@kernel.org> | 2019-09-04 04:35:07 +0200 |
|---|---|---|
| committer | Moritz Fischer <mdf@kernel.org> | 2019-09-04 04:35:07 +0200 |
| commit | af9ca4b0bd0502bb134f18d394a613be371d2352 (patch) | |
| tree | 37b1159d4456e223981dddde4795f2061c83d14c /drivers/i2c/busses/i2c-at91-master.c | |
| parent | Merge tag 'dev_groups_all_drivers' into fpga-dfl-for-5.4 (diff) | |
| parent | Merge 5.3-rc7 into char-misc-next (diff) | |
| download | linux-af9ca4b0bd0502bb134f18d394a613be371d2352.tar.xz linux-af9ca4b0bd0502bb134f18d394a613be371d2352.zip | |
Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into fpga-dfl-for-5.4
Diffstat (limited to 'drivers/i2c/busses/i2c-at91-master.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-at91-master.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-at91-master.c b/drivers/i2c/busses/i2c-at91-master.c index e87232f2e708..a3fcc35ffd3b 100644 --- a/drivers/i2c/busses/i2c-at91-master.c +++ b/drivers/i2c/busses/i2c-at91-master.c @@ -122,9 +122,11 @@ static void at91_twi_write_next_byte(struct at91_twi_dev *dev) writeb_relaxed(*dev->buf, dev->base + AT91_TWI_THR); /* send stop when last byte has been written */ - if (--dev->buf_len == 0) + if (--dev->buf_len == 0) { if (!dev->use_alt_cmd) at91_twi_write(dev, AT91_TWI_CR, AT91_TWI_STOP); + at91_twi_write(dev, AT91_TWI_IDR, AT91_TWI_TXRDY); + } dev_dbg(dev->dev, "wrote 0x%x, to go %zu\n", *dev->buf, dev->buf_len); @@ -542,9 +544,8 @@ static int at91_do_twi_transfer(struct at91_twi_dev *dev) } else { at91_twi_write_next_byte(dev); at91_twi_write(dev, AT91_TWI_IER, - AT91_TWI_TXCOMP | - AT91_TWI_NACK | - AT91_TWI_TXRDY); + AT91_TWI_TXCOMP | AT91_TWI_NACK | + (dev->buf_len ? AT91_TWI_TXRDY : 0)); } } |