Commit Graph

7 Commits

Author SHA1 Message Date
Cristian Sicilia 14d697716f staging: axis-fifo: Split line to stay in 80 characters.
The line is split up to stay in 80 characters-

Signed-off-by: Cristian Sicilia <sicilia.cristian@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-20 10:59:30 +01:00
YueHaibing a30e94b1e1 staging: axis-fifo: remove duplicated include from axis-fifo.c
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:13:23 +02:00
Ioannis Valasakis 34ff787136 staging: axis-fifo: Remove parentheses in axis-fifo.c
staging: axis-fifo: remove parentheses in axis-fifo.c

Remove parentheses from the end of line and conform to
the coding style guidelines. Reported by checkpatch.

Add an extra space to the function arguments to fix
indentation.

Signed-off-by: Ioannis Valasakis <code@wizofe.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 14:57:33 +02:00
Alexey Khoroshilov a24b420bb3 staging: axis-fifo: add error handling of class_create()
Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-02 15:18:36 -07:00
kbuild test robot b9f1308458 staging: fix platform_no_drv_owner.cocci warnings
drivers/staging/axis-fifo/axis-fifo.c:1081:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Fixes: 4a965c5f89 ("staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core")
CC: Jacob Feder <jacobsfeder@gmail.com>
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-29 14:40:41 +02:00
Wei Yongjun 6d4abf1c0e staging: axis-fifo: fix return value check in axis_fifo_probe()
In case of error, the function device_create() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Fixes: 4a965c5f89 ("staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-28 09:26:31 +02:00
Jacob Feder 4a965c5f89 staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core
This IP core has read and write AXI-Stream FIFOs, the contents of which can
be accessed from the AXI4 memory-mapped interface. This is useful for
transferring data from a processor into the FPGA fabric. The driver creates
a character device that can be read/written to with standard
open/read/write/close.

See Xilinx PG080 document for IP details.

https://www.xilinx.com/support/documentation/ip_documentation/axi_fifo_mm_s/v4_1/pg080-axi-fifo-mm-s.pdf

The driver currently supports only store-forward mode with a 32-bit
AXI4 Lite interface. DOES NOT support:
        - cut-through mode
        - AXI4 (non-lite)

Signed-off-by: Jacob Feder <jacobsfeder@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-24 14:14:13 +02:00