* [PATCH] spi: qup: Change usleep_range to udelay
@ 2021-03-02 7:10 Md Sadre Alam
0 siblings, 0 replies; only message in thread
From: Md Sadre Alam @ 2021-03-02 7:10 UTC (permalink / raw)
To: agross, bjorn.andersson, broonie, linux-arm-msm, linux-spi, linux-kernel
Cc: Md Sadre Alam
Change usleep_range() to udelay(). Since delay request
for 1 to 2 usec so we have to use udelay() instead of
usleep_range() as per kernel documentation.
Signed-off-by: Md Sadre Alam <mdalam@codeaurora.org>
---
drivers/spi/spi-qup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index 8dcb2e7..37b013f 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -189,7 +189,7 @@ static int spi_qup_set_state(struct spi_qup *controller, u32 state)
loop = 0;
while (!spi_qup_is_valid_state(controller)) {
- usleep_range(SPI_DELAY_THRESHOLD, SPI_DELAY_THRESHOLD * 2);
+ udelay(SPI_DELAY_THRESHOLD);
if (++loop > SPI_DELAY_RETRY)
return -EIO;
@@ -217,7 +217,7 @@ static int spi_qup_set_state(struct spi_qup *controller, u32 state)
loop = 0;
while (!spi_qup_is_valid_state(controller)) {
- usleep_range(SPI_DELAY_THRESHOLD, SPI_DELAY_THRESHOLD * 2);
+ udelay(SPI_DELAY_THRESHOLD);
if (++loop > SPI_DELAY_RETRY)
return -EIO;
--
2.7.4
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2021-03-03 1:20 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-02 7:10 [PATCH] spi: qup: Change usleep_range to udelay Md Sadre Alam
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.