6.6-stable review patch. If anyone has any objections, please let me know.
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From: Alvaro Gamez Machado alvaro.gamez@hazent.com
[ Upstream commit 939edfaa10f1d22e6af6a84bf4bd96dc49c67302 ]
SPI devices using a (relative) slow frequency need a larger time.
For instance, microblaze running at 83.25MHz and performing a 3 bytes transaction using a 10MHz/16 = 625kHz needed this stall value increased to at least 20. The SPI device is quite slow, but also is the microblaze, so set this value to 32 to give it even more margin.
Signed-off-by: Alvaro Gamez Machado alvaro.gamez@hazent.com Reviewed-by: Ricardo Ribalda ribalda@chromium.org Link: https://patch.msgid.link/20251106134545.31942-1-alvaro.gamez@hazent.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-xilinx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 8e6e3876aa9af..b5405d9974ba6 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -299,7 +299,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
/* Read out all the data from the Rx FIFO */ rx_words = n_words; - stalled = 10; + stalled = 32; while (rx_words) { if (rx_words == n_words && !(stalled--) && !(sr & XSPI_SR_TX_EMPTY_MASK) &&