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| author | Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> | 2010-12-24 11:40:50 +0900 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-12-23 20:30:11 -0700 |
| commit | 9d32af66aa3a0e28d95fc607e208795ef6cc993a (patch) | |
| tree | 43b196812ee508b532696642ccb193527b91cfc7 | |
| parent | 893421745a052100b981401b7c5c6dc8708fb8a0 (diff) | |
| download | op-kernel-dev-9d32af66aa3a0e28d95fc607e208795ef6cc993a.zip op-kernel-dev-9d32af66aa3a0e28d95fc607e208795ef6cc993a.tar.gz | |
spi/topcliff_pch: Fix data transfer issue
It seems spi_topcliff_pch of linux-2.6.37-rc6 degraded by previous patch.
In fact, data transfer fails on evaluation board testing.
I found like the following register miss-setting line.
Using this patch, I have confirmed data transfer can work well.
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| -rw-r--r-- | drivers/spi/spi_topcliff_pch.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/spi/spi_topcliff_pch.c b/drivers/spi/spi_topcliff_pch.c index 58e187f..56b7588 100644 --- a/drivers/spi/spi_topcliff_pch.c +++ b/drivers/spi/spi_topcliff_pch.c @@ -267,7 +267,7 @@ static void pch_spi_handler_sub(struct pch_spi_data *data, u32 reg_spsr_val, if (reg_spsr_val & SPSR_FI_BIT) { /* disable FI & RFI interrupts */ pch_spi_setclr_reg(data->master, PCH_SPCR, 0, - SPCR_FIE_BIT | SPCR_TFIE_BIT); + SPCR_FIE_BIT | SPCR_RFIE_BIT); /* transfer is completed;inform pch_spi_process_messages */ data->transfer_complete = true; @@ -679,11 +679,11 @@ static void pch_spi_set_ir(struct pch_spi_data *data) if ((data->bpw_len) > PCH_MAX_FIFO_DEPTH) { /* set receive threhold to PCH_RX_THOLD */ pch_spi_setclr_reg(data->master, PCH_SPCR, - PCH_RX_THOLD << SPCR_TFIC_FIELD, - ~MASK_TFIC_SPCR_BITS); + PCH_RX_THOLD << SPCR_RFIC_FIELD, + ~MASK_RFIC_SPCR_BITS); /* enable FI and RFI interrupts */ pch_spi_setclr_reg(data->master, PCH_SPCR, - SPCR_RFIE_BIT | SPCR_TFIE_BIT, 0); + SPCR_RFIE_BIT | SPCR_FIE_BIT, 0); } else { /* set receive threhold to maximum */ pch_spi_setclr_reg(data->master, PCH_SPCR, |
