Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'spi-fix-v6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fix from Mark Brown:
"One fix here from Thierry, fixing crashes caused by attempting to do
cache sync operations on uncached memory on Tegra platforms"
* tag 'spi-fix-v6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: tegra210-qspi: Remove cache operations
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-14
drivers/spi/spi-tegra210-quad.c
-14
drivers/spi/spi-tegra210-quad.c
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static void
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tegra_qspi_copy_client_txbuf_to_qspi_txbuf(struct tegra_qspi *tqspi, struct spi_transfer *t)
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{
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dma_sync_single_for_cpu(tqspi->dev, tqspi->tx_dma_phys,
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tqspi->dma_buf_size, DMA_TO_DEVICE);
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/*
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* In packed mode, each word in FIFO may contain multiple packets
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* based on bits per word. So all bytes in each FIFO word are valid.
···
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tqspi->cur_tx_pos += write_bytes;
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}
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dma_sync_single_for_device(tqspi->dev, tqspi->tx_dma_phys,
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tqspi->dma_buf_size, DMA_TO_DEVICE);
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}
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static void
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tegra_qspi_copy_qspi_rxbuf_to_client_rxbuf(struct tegra_qspi *tqspi, struct spi_transfer *t)
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{
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dma_sync_single_for_cpu(tqspi->dev, tqspi->rx_dma_phys,
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tqspi->dma_buf_size, DMA_FROM_DEVICE);
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if (tqspi->is_packed) {
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tqspi->cur_rx_pos += tqspi->curr_dma_words * tqspi->bytes_per_word;
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} else {
···
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tqspi->cur_rx_pos += read_bytes;
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}
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dma_sync_single_for_device(tqspi->dev, tqspi->rx_dma_phys,
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tqspi->dma_buf_size, DMA_FROM_DEVICE);
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}
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static void tegra_qspi_dma_complete(void *args)
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return ret;
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}
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dma_sync_single_for_device(tqspi->dev, tqspi->rx_dma_phys,
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tqspi->dma_buf_size, DMA_FROM_DEVICE);
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ret = tegra_qspi_start_rx_dma(tqspi, t, len);
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if (ret < 0) {
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dev_err(tqspi->dev, "failed to start RX DMA: %d\n", ret);