diff options
| author | Steven Feng <steven_feng@realsil.com.cn> | 2017-05-23 15:13:24 +0800 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2017-07-06 08:29:11 +0100 |
| commit | 87d284443d071dc70344dda4b2fb43723686acdb (patch) | |
| tree | 4dad341884d0ab06c71f17a83976e9b04e04b76f /include/linux/mfd | |
| parent | 9b79ff104f73de63efc958cc0dec3c826aee3ffd (diff) | |
| download | linux-next-87d284443d071dc70344dda4b2fb43723686acdb.tar.gz | |
mfd: rtsx: Do retry when DMA transfer error
The request should be resent when DMA transfer error occurred.
For rts5227, the clock rate needs to be reduced when error occurred.
Signed-off-by: Steven Feng <steven_feng@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'include/linux/mfd')
| -rw-r--r-- | include/linux/mfd/rtsx_pci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h index 7eb7cbac0a9a..116816fb9110 100644 --- a/include/linux/mfd/rtsx_pci.h +++ b/include/linux/mfd/rtsx_pci.h @@ -850,6 +850,9 @@ #define rtsx_pci_init_cmd(pcr) ((pcr)->ci = 0) +#define RTS5227_DEVICE_ID 0x5227 +#define RTS_MAX_TIMES_FREQ_REDUCTION 8 + struct rtsx_pcr; struct pcr_handle { @@ -957,6 +960,8 @@ struct rtsx_pcr { int num_slots; struct rtsx_slot *slots; + + u8 dma_error_count; }; #define CHK_PCI_PID(pcr, pid) ((pcr)->pci->device == (pid)) |