linux.git/drivers/spi/Kconfig, branch master Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git spi: cadence: Add 64BIT Kconfig dependency 2024-07-30T13:23:14+00:00 Witold Sadowski wsadowski@marvell.com 2024-07-30T13:16:26+00:00 d58ecc54bb09e3dfc0b43a82a6e1602a44bbebce xSPI block requires 64 bit operation for proper Marvell SDMA handling. Disallow bulding on targets without 64 bit support. Signed-off-by: Witold Sadowski <wsadowski@marvell.com> Link: https://patch.msgid.link/20240730131627.1874257-1-wsadowski@marvell.com Signed-off-by: Mark Brown <broonie@kernel.org> 
xSPI block requires 64 bit operation for proper Marvell SDMA handling.
Disallow bulding on targets without 64 bit support.

Signed-off-by: Witold Sadowski <wsadowski@marvell.com>
Link: https://patch.msgid.link/20240730131627.1874257-1-wsadowski@marvell.com
Signed-off-by: Mark Brown <broonie@kernel.org>
spi: add ch341a usb2spi driver 2024-07-08T16:01:10+00:00 Johannes Thumshirn jth@kernel.org 2024-07-08T15:49:28+00:00 8846739f52afa07e63395c80227dc544f54bd7b1 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 <jth@kernel.org> Link: https://patch.msgid.link/20240708-spi-ch341a-v3-1-cf7f9b2c1e31@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> 
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 <jth@kernel.org>
Link: https://patch.msgid.link/20240708-spi-ch341a-v3-1-cf7f9b2c1e31@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
spi: pxa2xx: Drop linux/spi/pxa2xx_spi.h 2024-05-06T01:05:23+00:00 Mark Brown broonie@kernel.org 2024-05-06T01:05:23+00:00 21ae190e4607c39174c041401a7843ae3ae24f32 Merge series from Andy Shevchenko <andriy.shevchenko@linux.intel.com>: 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. 
Merge series from Andy Shevchenko <andriy.shevchenko@linux.intel.com>:

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 Andy Shevchenko andriy.shevchenko@linux.intel.com 2024-04-17T10:54:31+00:00 2d069c11e8229e9f380af0c3bffe4b95cd2cf9ec 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 <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20240417110334.2671228-5-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> 
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 <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240417110334.2671228-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
spi: bitbang: Add missing MODULE_DESCRIPTION() 2024-05-03T02:09:30+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2024-05-02T17:15:18+00:00 8ee46db14169fe1b028078767fda904d2fcbc04e 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 <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240502171518.2792895-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> 
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 <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240502171518.2792895-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
spi: airoha: add SPI-NAND Flash controller driver 2024-04-30T14:40:28+00:00 Lorenzo Bianconi lorenzo@kernel.org 2024-04-29T08:13:10+00:00 a403997c12019d0f82a9480207bf85985b8de5e7 Introduce support for SPI-NAND driver of the Airoha NAND Flash Interface found on Airoha ARM SoCs. Tested-by: Rajeev Kumar <Rajeev.Kumar@airoha.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Andy Shevchenko <andy@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/6c9db20505b01a66807995374f2af475a23ce5b2.1714377864.git.lorenzo@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> 
Introduce support for SPI-NAND driver of the Airoha NAND Flash Interface
found on Airoha ARM SoCs.

Tested-by: Rajeev Kumar <Rajeev.Kumar@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/6c9db20505b01a66807995374f2af475a23ce5b2.1714377864.git.lorenzo@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Add bridged amplifiers to cs42l43 2024-04-17T00:12:19+00:00 Mark Brown broonie@kernel.org 2024-04-17T00:12:19+00:00 1f05252a3a95bb898413126d3cd480fed4edab0e Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>: 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. 
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

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 Maciej Strozek mstrozek@opensource.cirrus.com 2024-04-16T10:09:04+00:00 439fbc97502ae16f3e54e05d266d103674cc4f06 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 <andy@kernel.org> Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240416100904.3738093-5-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org> 
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 <andy@kernel.org>
Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240416100904.3738093-5-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
spi: cadence-qspi: allow building for MIPS 2024-04-08T14:18:08+00:00 Théo Lebrun theo.lebrun@bootlin.com 2024-04-05T15:02:13+00:00 708eafeba9eec51c5bde8efef2a7c22d7113b771 The Cadence QSPI Controller driver is used on Mobileye EyeQ5 platform. Allow building on MIPS. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://msgid.link/r/20240405-cdns-qspi-mbly-v2-3-956679866d6d@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org> 
The Cadence QSPI Controller driver is used on Mobileye EyeQ5 platform.
Allow building on MIPS.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://msgid.link/r/20240405-cdns-qspi-mbly-v2-3-956679866d6d@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
spi: pxa2xx: Narrow the Kconfig option visibility 2024-03-28T20:34:48+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2024-03-27T19:29:20+00:00 3af201a405b3e5abee65102b062c309fff68cc0e The PCI || ACPI dependency is the historical part of the x86 support. Narrow the Kconfig option visibility by limiting this dependency to x86. The drop of x86 for PCI case had happened in the commit 2b49ebda39d6 ("spi/pxa2xx: allow building on a 64-bit kernel"), while the ACPI was specifically added for Intel Lynx Point in the commit a3496855d9f1 ("spi/pxa2xx: add support for Lynxpoint SPI controllers"). Note that X86 covers both 32- and 64-bit variants. Suggested-by: Mark Brown <broonie@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://msgid.link/r/20240327193138.2385910-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> 
The PCI || ACPI dependency is the historical part of the x86 support.
Narrow the Kconfig option visibility by limiting this dependency to x86.

The drop of x86 for PCI case had happened in the commit 2b49ebda39d6
("spi/pxa2xx: allow building on a 64-bit kernel"), while the ACPI
was specifically added for Intel Lynx Point in the commit a3496855d9f1
("spi/pxa2xx: add support for Lynxpoint SPI controllers").

Note that X86 covers both 32- and 64-bit variants.

Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://msgid.link/r/20240327193138.2385910-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>