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Subject[PATCH 2/7] fpga: make write_complete() op optional
Date
From: Tom Rix <trix@redhat.com>

The board should not be required to provide a
write_complete function if there is nothing. Move
the op check to the existing wrapper.
Default to success.
Remove noop function.

Signed-off-by: Tom Rix <trix@redhat.com>
---
drivers/fpga/fpga-mgr.c | 7 ++++---
drivers/fpga/zynqmp-fpga.c | 7 -------
2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
index 24547e36a56d..dadad2401502 100644
--- a/drivers/fpga/fpga-mgr.c
+++ b/drivers/fpga/fpga-mgr.c
@@ -152,10 +152,11 @@ static int fpga_mgr_write_init_sg(struct fpga_manager *mgr,
static int fpga_mgr_write_complete(struct fpga_manager *mgr,
struct fpga_image_info *info)
{
- int ret;
+ int ret = 0;

mgr->state = FPGA_MGR_STATE_WRITE_COMPLETE;
- ret = mgr->mops->write_complete(mgr, info);
+ if (mgr->mops && mgr->mops->write_complete)
+ ret = mgr->mops->write_complete(mgr, info);
if (ret) {
dev_err(&mgr->dev, "Error after writing image data to FPGA\n");
mgr->state = FPGA_MGR_STATE_WRITE_COMPLETE_ERR;
@@ -576,7 +577,7 @@ struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
struct fpga_manager *mgr;
int id, ret;

- if (!mops || !mops->write_complete || !mops->state ||
+ if (!mops || !mops->state ||
(!mops->write && !mops->write_sg) ||
(mops->write && mops->write_sg)) {
dev_err(dev, "Attempt to register without fpga_manager_ops\n");
diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c
index 125743c9797f..9efbd70aa686 100644
--- a/drivers/fpga/zynqmp-fpga.c
+++ b/drivers/fpga/zynqmp-fpga.c
@@ -66,12 +66,6 @@ static int zynqmp_fpga_ops_write(struct fpga_manager *mgr,
return ret;
}

-static int zynqmp_fpga_ops_write_complete(struct fpga_manager *mgr,
- struct fpga_image_info *info)
-{
- return 0;
-}
-
static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr)
{
u32 status = 0;
@@ -87,7 +81,6 @@ static const struct fpga_manager_ops zynqmp_fpga_ops = {
.state = zynqmp_fpga_ops_state,
.write_init = zynqmp_fpga_ops_write_init,
.write = zynqmp_fpga_ops_write,
- .write_complete = zynqmp_fpga_ops_write_complete,
};

static int zynqmp_fpga_probe(struct platform_device *pdev)
--
2.26.3
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