linux-stable.git/drivers/spi, branch v5.17.7

spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controller

2022-04-27T12:41:17+00:00

commit 8c235cc25087495c4288d94f547e9d3061004991 upstream.

Use the spi_mem_default_supports_op() core helper in order to take into
account the buswidth specified by the user in device tree.

Cc: 
Fixes: 0e6aae08e9ae ("spi: Add QuadSPI driver for Atmel SAMA5D2")
Signed-off-by: Tudor Ambarus 
Link: https://lore.kernel.org/r/20220406133604.455356-1-tudor.ambarus@microchip.com
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

spi: cadence-quadspi: fix incorrect supports_op() return value

2022-04-27T12:40:58+00:00

[ Upstream commit f1d388f216aeb41a5df518815ae559d14a6d438e ]

Since the conversion to spi-mem, the driver advertised support for
various operations that cqspi_set_protocol() was never expected to handle
correctly - in particuar all non-DTR operations with command or address
buswidth > 1. For DTR, all operations except for 8-8-8 would fail, as
cqspi_set_protocol() returns -EINVAL.

In non-DTR mode, this resulted in data corruption for SPI-NOR flashes that
support such operations. As a minimal fix that can be backported to stable
kernels, simply disallow the unsupported operations again to avoid this
issue.

Fixes: a314f6367787 ("mtd: spi-nor: Convert cadence-quadspi to use spi-mem framework")
Signed-off-by: Matthias Schiffer 
Link: https://lore.kernel.org/r/20220406132832.199777-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: spi-mtk-nor: initialize spi controller after resume

2022-04-27T12:40:57+00:00

[ Upstream commit 317c2045618cc1f8d38beb8c93a7bdb6ad8638c6 ]

After system resumes, the registers of nor controller are
initialized with default values. The nor controller will
not function properly.

To handle both issues above, we add mtk_nor_init() in
mtk_nor_resume after pm_runtime_force_resume().

Fixes: 3bfd9103c7af ("spi: spi-mtk-nor: Add power management support")

Signed-off-by: Allen-KH Cheng 
Reviewed-by: Rex-BC Chen 
Link: https://lore.kernel.org/r/20220412115743.22641-1-allen-kh.cheng@mediatek.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: cadence-quadspi: fix protocol setup for non-1-1-X operations

2022-04-20T07:36:22+00:00

[ Upstream commit 97e4827d775faa9a32b5e1a97959c69dd77d17a3 ]

cqspi_set_protocol() only set the data width, but ignored the command
and address width (except for 8-8-8 DTR ops), leading to corruption of
all transfers using 1-X-X or X-X-X ops. Fix by setting the other two
widths as well.

While we're at it, simplify the code a bit by replacing the
CQSPI_INST_TYPE_* constants with ilog2().

Tested on a TI AM64x with a Macronix MX25U51245G QSPI flash with 1-4-4
read and write operations.

Signed-off-by: Matthias Schiffer 
Link: https://lore.kernel.org/r/20220331110819.133392-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: core: add dma_map_dev for __spi_unmap_msg()

2022-04-13T17:27:37+00:00

commit 409543cec01a84610029d6440c480c3fdd7214fb upstream.

Commit b470e10eb43f ("spi: core: add dma_map_dev for dma device") added
dma_map_dev for _spi_map_msg() but missed to add for unmap routine,
__spi_unmap_msg(), so add it now.

Fixes: b470e10eb43f ("spi: core: add dma_map_dev for dma device")
Cc: stable@vger.kernel.org # v5.14+
Signed-off-by: Vinod Koul 
Link: https://lore.kernel.org/r/20220406132238.1029249-1-vkoul@kernel.org
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

spi: bcm-qspi: fix MSPI only access with bcm_qspi_exec_mem_op()

2022-04-13T17:27:32+00:00

[ Upstream commit 2c7d1b281286c46049cd22b43435cecba560edde ]

This fixes case where MSPI controller is used to access spi-nor
flash and BSPI block is not present.

Fixes: 5f195ee7d830 ("spi: bcm-qspi: Implement the spi_mem interface")
Signed-off-by: Kamal Dasu 
Acked-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20220328142442.7553-1-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

spi: rpc-if: Fix RPM imbalance in probe error path

2022-04-13T17:27:29+00:00

[ Upstream commit 2f8cf5f642e80f8b6b0e660a9c86924a1f41cd80 ]

If rpcif_hw_init() fails, Runtime PM is left enabled.

Fixes: b04cc0d912eb80d3 ("memory: renesas-rpc-if: Add support for RZ/G2L")
Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Wolfram Sang 
Link: https://lore.kernel.org/r/1c78a1f447d019bb66b6e7787f520ae78821e2ae.1648562287.git.geert+renesas@glider.be
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

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