From: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
During the loading of the firmware, the WFX_DCA_GET register provide the
number available bytes in the receiving buffer. It is not necessary to
access to the WFX_DCA_GET after sent of each firmware fragment.
This patch allows to send the firmware:
- in 64ms instead of 130ms using SDIO bus
- in 78ms instead of 115ms using SPI bus
Signed-off-by: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
---
drivers/staging/wfx/fwio.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/wfx/fwio.c b/drivers/staging/wfx/fwio.c
index 72bb3d2a96138..d9a886f3e64be 100644
--- a/drivers/staging/wfx/fwio.c
+++ b/drivers/staging/wfx/fwio.c
@@ -188,15 +188,14 @@ static int upload_firmware(struct wfx_dev *wdev, const u8 *data, size_t len)
while (offs < len) {
start = ktime_get();
for (;;) {
- ret = sram_reg_read(wdev, WFX_DCA_GET, &bytes_done);
- if (ret < 0)
- return ret;
now = ktime_get();
- if (offs +
- DNLD_BLOCK_SIZE - bytes_done < DNLD_FIFO_SIZE)
+ if (offs + DNLD_BLOCK_SIZE - bytes_done < DNLD_FIFO_SIZE)
break;
if (ktime_after(now, ktime_add_ms(start, DCA_TIMEOUT)))
return -ETIMEDOUT;
+ ret = sram_reg_read(wdev, WFX_DCA_GET, &bytes_done);
+ if (ret < 0)
+ return ret;
}
if (ktime_compare(now, start))
dev_dbg(wdev->dev, "answer after %lldus\n",
--
2.27.0
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