diff options
| author | Ashok Reddy Soma <ashok.reddy.soma@amd.com> | 2023-09-15 08:47:58 +0530 |
|---|---|---|
| committer | Michal Simek <michal.simek@amd.com> | 2023-09-21 13:20:12 +0200 |
| commit | 638189ddeaa5dccee9466bc772fa5655218f530b (patch) | |
| tree | 74d7590b68350ad3ccefd06da6f817687fe140de | |
| parent | 8750d35ee295b0713d621a7d667515ef63fca246 (diff) | |
spi: zynqmp_qspi: Change flush cache to invalidate cache
Before DMA read, ideally cache should be invalidated, so that data from
memory will be updated to cache after DMA is completed. But
flush_dcache_range is being used which is incorrect. Change
flush_dcache_range to invalidate_dcache_range.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20230915031759.28889-2-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
| -rw-r--r-- | drivers/spi/zynqmp_gqspi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/zynqmp_gqspi.c b/drivers/spi/zynqmp_gqspi.c index c4aee279aa..a506d15227 100644 --- a/drivers/spi/zynqmp_gqspi.c +++ b/drivers/spi/zynqmp_gqspi.c @@ -690,7 +690,7 @@ static int zynqmp_qspi_start_dma(struct zynqmp_qspi_priv *priv, writel(GQSPI_DMA_DST_I_STS_MASK, &dma_regs->dmaier); addr = (unsigned long)buf; size = roundup(priv->len, GQSPI_DMA_ALIGN); - flush_dcache_range(addr, addr + size); + invalidate_dcache_range(addr, addr + size); while (priv->len) { zynqmp_qspi_calc_exp(priv, &gen_fifo_cmd); |