linux-stable.git/drivers/spi, branch v5.17.2

spi: mediatek: support tick_delay without enhance_timing

2022-04-08T11:59:02+00:00

commit 03b1be379dcee2e9c866c2a455a1a4a9581b3efd upstream.

this patch support tick_delay bit[31:30] without enhance_timing feature.

Fixes: f84d866ab43f("spi: mediatek: add tick_delay support")
Signed-off-by: Leilk Liu 
Reviewed-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20220315032411.2826-2-leilk.liu@mediatek.com
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

spi: fsi: Implement a timeout for polling status

2022-04-08T11:58:39+00:00

[ Upstream commit 89b35e3f28514087d3f1e28e8f5634fbfd07c554 ]

The data transfer routines must poll the status register to
determine when more data can be shifted in or out. If the hardware
gets into a bad state, these polling loops may never exit. Prevent
this by returning an error if a timeout is exceeded.

Signed-off-by: Eddie James 
Link: https://lore.kernel.org/r/20220317211426.38940-1-eajames@linux.ibm.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: tegra20: Use of_device_get_match_data()

2022-04-08T11:58:39+00:00

[ Upstream commit c9839acfcbe20ce43d363c2a9d0772472d9921c0 ]

Use of_device_get_match_data() to simplify the code.

Reported-by: Zeal Robot 
Signed-off-by: Minghao Chi 
Link: https://lore.kernel.org/r/20220315023138.2118293-1-chi.minghao@zte.com.cn
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: spi-zynqmp-gqspi: Handle error for dma_set_mask

2022-04-08T11:57:36+00:00

[ Upstream commit 13262fc26c1837c51a5131dbbdd67a2387f8bfc7 ]

As the potential failure of the dma_set_mask(),
it should be better to check it and return error
if fails.

Fixes: 126bdb606fd2 ("spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails")
Signed-off-by: Jiasheng Jiang 
Link: https://lore.kernel.org/r/20220302092051.121343-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: pxa2xx-pci: Balance reference count for PCI DMA device

2022-04-08T11:57:35+00:00

[ Upstream commit 609d7ffdc42199a0ec949db057e3b4be6745d6c5 ]

The pci_get_slot() increases its reference count, the caller
must decrement the reference count by calling pci_dev_put().

Fixes: 743485ea3bee ("spi: pxa2xx-pci: Do a specific setup in a separate function")
Fixes: 25014521603f ("spi: pxa2xx-pci: Enable DMA for Intel Merrifield")
Reported-by: Wang Qing 
Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20220223191637.31147-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: tegra210-quad: Fix missin IRQ check in tegra_qspi_probe

2022-04-08T11:57:33+00:00

[ Upstream commit 47c3e06ed95aa9b74932dbc6b23b544f644faf84 ]

This func misses checking for platform_get_irq()'s call and may passes the
negative error codes to request_threaded_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.
Stop calling request_threaded_irq() with invalid IRQ #s.

Fixes: 921fc1838fb0 ("spi: tegra210-quad: Add support for Tegra210 QSPI controller")
Signed-off-by: Miaoqian Lin 
Link: https://lore.kernel.org/r/20220128165956.27821-1-linmq006@gmail.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: tegra114: Add missing IRQ check in tegra_spi_probe

2022-04-08T11:57:33+00:00

[ Upstream commit 4f92724d4b92c024e721063f520d66e11ca4b54b ]

This func misses checking for platform_get_irq()'s call and may passes the
negative error codes to request_threaded_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.
Stop calling request_threaded_irq() with invalid IRQ #s.

Fixes: f333a331adfa ("spi/tegra114: add spi driver")
Signed-off-by: Miaoqian Lin 
Link: https://lore.kernel.org/r/20220128165238.25615-1-linmq006@gmail.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: mxic: Fix the transmit path

2022-04-08T11:57:18+00:00

commit 5fd6739e0df7e320bcac103dfb95fe75941fea17 upstream.

By working with external hardware ECC engines, we figured out that
Under certain circumstances, it is needed for the SPI controller to
check INT_TX_EMPTY and INT_RX_NOT_EMPTY in both receive and transmit
path (not only in the receive path). The delay penalty being
negligible, move this code in the common path.

Fixes: b942d80b0a39 ("spi: Add MXIC controller driver")
Cc: stable@vger.kernel.org
Suggested-by: Mason Yang 
Signed-off-by: Miquel Raynal 
Reviewed-by: Zhengxun Li 
Reviewed-by: Mark Brown 
Link: https://lore.kernel.org/linux-mtd/20220127091808.1043392-10-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman

Merge tag 'spi-fix-v5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2022-03-10T12:15:09+00:00

Pull spi fix from Mark Brown:
 "One fix for type conversion issues when working out maximum
  scatter/gather segment sizes.

  It caused problems for some systems where the limits overflow
  due to the type conversion"

* tag 'spi-fix-v5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: Fix invalid sgs value

spi: Fix invalid sgs value

2022-03-08T12:27:33+00:00

max_seg_size is unsigned int and it can have a value up to 2^32
(for eg:-RZ_DMAC driver sets dma_set_max_seg_size as U32_MAX)
When this value is used in min_t() as an integer type, it becomes
-1 and the value of sgs becomes 0.

Fix this issue by replacing the 'int' data type with 'unsigned int'
in min_t().

Signed-off-by: Biju Das 
Reviewed-by: Lad Prabhakar 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20220307184843.9994-1-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown