kernel/linux.git/drivers/spi/Kconfig, branch v6.12.91

spi: tegra114: remove Kconfig dependency on TEGRA20_APB_DMA

2025-12-06T21:24:56+00:00

[ Upstream commit 3dcf44ab56e1d3ca3532083c0d5390b758e45b45 ] This driver runs also on Tegra SoCs without a Tegra20 APB DMA controller (e.g. Tegra234). Remove the Kconfig dependency on TEGRA20_APB_DMA; in addition, amend the help text to reflect the fact that this driver works on SoCs different from Tegra114. Fixes: bb9667d8187b ("arm64: tegra: Add SPI device tree nodes for Tegra234") Signed-off-by: Francesco Lavra Link: https://patch.msgid.link/20251126095027.4102004-1-flavra@baylibre.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin

spi: cadence: Add 64BIT Kconfig dependency

2024-07-30T13:23:14+00:00

xSPI block requires 64 bit operation for proper Marvell SDMA handling. Disallow bulding on targets without 64 bit support. Signed-off-by: Witold Sadowski Link: https://patch.msgid.link/20240730131627.1874257-1-wsadowski@marvell.com Signed-off-by: Mark Brown

spi: add ch341a usb2spi driver

2024-07-08T16:01:10+00:00

Add a driver for the QiHeng Electronics ch341a USB-to-SPI adapter. This driver is loosely based on the ch341a module from the flashrom project. Signed-off-by: Johannes Thumshirn Link: https://patch.msgid.link/20240708-spi-ch341a-v3-1-cf7f9b2c1e31@kernel.org Signed-off-by: Mark Brown

spi: pxa2xx: Drop linux/spi/pxa2xx_spi.h

2024-05-06T01:05:23+00:00

Merge series from Andy Shevchenko : As Arnd suggested we may drop linux/spi/pxa2xx_spi.h as most of its content is being used solely internally to SPI subsystem (PXA2xx drivers). Hence this refactoring series with the additional win of getting rid of legacy documentation. Note, that we have the only user of a single plain integer field in the entire kernel for that. Switching to software nodes does not diminish any of type checking as we only pass an integer.

spi: pxa2xx: Remove outdated documentation

2024-05-03T02:11:34+00:00

The documentation is referring to the legacy enumeration of the SPI host controllers and target devices. It has nothing to do with the modern way, which is the only supported in kernel right now. Hence, remove outdated documentation file. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20240417110334.2671228-5-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown

spi: bitbang: Add missing MODULE_DESCRIPTION()

2024-05-03T02:09:30+00:00

The modpost script is not happy WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/spi/spi-bitbang.o because there is a missing module description. Add it to the module. While at it, update the terminology in Kconfig section to be in align with added description along with the code comments. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20240502171518.2792895-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown

spi: airoha: add SPI-NAND Flash controller driver

2024-04-30T14:40:28+00:00

Introduce support for SPI-NAND driver of the Airoha NAND Flash Interface found on Airoha ARM SoCs. Tested-by: Rajeev Kumar Signed-off-by: Lorenzo Bianconi Reviewed-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/6c9db20505b01a66807995374f2af475a23ce5b2.1714377864.git.lorenzo@kernel.org Signed-off-by: Mark Brown

Add bridged amplifiers to cs42l43

2024-04-17T00:12:19+00:00

Merge series from Charles Keepax : In some cs42l43 systems a couple of cs35l56 amplifiers are attached to the cs42l43's SPI and I2S. On Windows the cs42l43 is controlled by a SDCA class driver and these two amplifiers are controlled by firmware running on the cs42l43. However, under Linux the decision was made to interact with the cs42l43 directly, affording the user greater control over the audio system. However, this has resulted in an issue where these two bridged cs35l56 amplifiers are not populated in ACPI and must be added manually. There is at least an SDCA extension unit DT entry we can key off. The process of adding this is handled using a software node, firstly the ability to add native chip selects to software nodes must be added. Secondly, an additional flag for naming the SPI devices is added this allows the machine driver to key to the correct amplifier. Then finally, the cs42l43 SPI driver adds the two amplifiers directly onto its SPI bus. An additional series will follow soon to add the audio machine driver parts (in the sof-sdw driver), however that is fairly orthogonal to this part of the process, getting the actual amplifiers registered.

spi: cs42l43: Add bridged cs35l56 amplifiers

2024-04-16T11:00:29+00:00

On some cs42l43 systems a couple of cs35l56 amplifiers are attached to the cs42l43's SPI and I2S. On Windows the cs42l43 is controlled by a SDCA class driver and these two amplifiers are controlled by firmware running on the cs42l43. However, under Linux the decision was made to interact with the cs42l43 directly, affording the user greater control over the audio system. However, this has resulted in an issue where these two bridged cs35l56 amplifiers are not populated in ACPI and must be added manually. Check for the presence of the "01fa-cirrus-sidecar-instances" property in the SDCA extension unit's ACPI properties to confirm the presence of these two amplifiers and if they exist add them manually onto the SPI bus. Reviewed-by: Andy Shevchenko Signed-off-by: Maciej Strozek Signed-off-by: Charles Keepax Link: https://lore.kernel.org/r/20240416100904.3738093-5-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

spi: cadence-qspi: allow building for MIPS

2024-04-08T14:18:08+00:00

The Cadence QSPI Controller driver is used on Mobileye EyeQ5 platform. Allow building on MIPS. Signed-off-by: Théo Lebrun Link: https://msgid.link/r/20240405-cdns-qspi-mbly-v2-3-956679866d6d@bootlin.com Signed-off-by: Mark Brown