user/sven/linux.git/include/linux/spi, branch v6.10.6

spi: add defer_optimize_message controller flag

2024-07-09T16:42:32Z

Adding spi_optimize_message() broke the spi-mux driver because it calls spi_async() from it's transfer_one_message() callback. This resulted in passing an incorrectly optimized message to the controller. For example, if the underlying controller has an optimize_message() callback, this would have not been called and can cause a crash when the underlying controller driver tries to transfer the message. Also, since the spi-mux driver swaps out the controller pointer by replacing msg->spi, __spi_unoptimize_message() was being called with a different controller than the one used in __spi_optimize_message(). This could cause a crash when attempting to free the message resources when __spi_unoptimize_message() is called in spi_finalize_current_message() since it is being called with a controller that did not allocate the resources. This is fixed by adding a defer_optimize_message flag for controllers. This flag causes all of the spi_[maybe_][un]optimize_message() calls to be a no-op (other than attaching a pointer to the spi device to the message). This allows the spi-mux driver to pass an unmodified message to spi_async() in spi_mux_transfer_one_message() after the spi device has been swapped out. This causes __spi_optimize_message() and __spi_unoptimize_message() to be called only once per message and with the correct/same controller in each case. Reported-by: Oleksij Rempel Closes: https://lore.kernel.org/linux-spi/Zn6HMrYG2b7epUxT@pengutronix.de/ Reported-by: Marc Kleine-Budde Closes: https://lore.kernel.org/linux-spi/20240628-awesome-discerning-bear-1621f9-mkl@pengutronix.de/ Fixes: 7b1d87af14d9 ("spi: add spi_optimize_message() APIs") Signed-off-by: David Lechner Link: https://patch.msgid.link/20240708-spi-mux-fix-v1-2-6c8845193128@baylibre.com Signed-off-by: Mark Brown

spi: Fix OCTAL mode support

2024-06-18T13:48:27Z

Add OCTAL mode support. Issue detected using "--octal" spidev_test's option. Signed-off-by: Patrice Chotard Link: https://msgid.link/r/20240618132951.2743935-4-patrice.chotard@foss.st.com Signed-off-by: Mark Brown

spi: pxa2xx: Move contents of linux/spi/pxa2xx_spi.h to a local one

2024-05-03T02:11:33Z

There is no user of the linux/spi/pxa2xx_spi.h. Move its contents to the drivers/spi/spi-pxa2xx.h. Suggested-by: Arnd Bergmann Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20240417110334.2671228-4-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown

spi: spi.h: add missing kernel-doc for @last_cs_index_mask

2024-03-29T13:51:37Z

kernel-doc complains about last_cs_index_mask not described, so add its description. spi.h:778: warning: Function parameter or struct member 'last_cs_index_mask' not described in 'spi_controller' Fixes: 4d8ff6b0991d ("spi: Add multi-cs memories support in SPI core") Signed-off-by: Randy Dunlap Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20240328223340.17159-1-rdunlap@infradead.org Signed-off-by: Mark Brown

spi: xilinx: Massage xilinx_spi.h

2024-03-26T11:46:49Z

Merge series from Andy Shevchenko : Fix kernel documentation and inclusion block, and dropping the size of the num_chipselect.

spi: pxa2xx: Clean up linux/spi/pxa2xx_spi.h

2024-03-26T11:46:40Z

Merge series from Andy Shevchenko : A couple of cleanups against linux/spi/pxa2xx_spi.h. I'm sending this as v3 to land in the SPI subsystem. Meanwhile I'm preparing an update to make linux/spi/pxa2xx_spi.h private to the subsystem (PXA2xx driver). But the second part will be presented later on (likely after v6.9-rc1). That said, this can be routed either via SoC tree or SPI, up to respective maintainers.

spi: remove struct spi_message::is_dma_mapped

2024-03-25T20:30:07Z

There are no more users of the deprecated is_dma_mapped in struct spi_message so it can be removed. References in documentation and comments are also removed. A few similar checks if xfer->tx_dma or xfer->rx_dma are not NULL are also removed since these are now guaranteed to be NULL because they were previously set only if is_dma_mapped was true. Signed-off-by: David Lechner Link: https://msgid.link/r/20240325-spi-remove-is_dma_mapped-v2-1-d08d62b61f1c@baylibre.com Signed-off-by: Mark Brown

spi: rspi: Get rid of unused struct rspi_plat_data

2024-03-25T17:18:22Z

No in-kernel users of struct rspi_plat_data. If required, the software nodes should be used for such users. For now just get rid of it. Signed-off-by: Andy Shevchenko Link: https://msgid.link/r/20240325142118.3210915-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown

spi: pxa2xx: Make num_chipselect 8-bit in the struct pxa2xx_spi_controller

2024-03-25T00:49:16Z

There is no use for whole 16-bit for the number of chip select pins. Drop it to 8 bits. Acked-by: Arnd Bergmann Signed-off-by: Andy Shevchenko Link: https://msgid.link/r/20240307195056.4059864-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown

spi: pxa2xx: Kill pxa2xx_set_spi_info()

2024-03-25T00:49:15Z

There is the only one user of the pxa2xx_set_spi_info(). Unexport it and inline to the actual user. Signed-off-by: Andy Shevchenko Acked-by: Arnd Bergmann Link: https://msgid.link/r/20240307195056.4059864-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown