kernel/drivers/platform/x86/serial-multi-instantiate.c, branch linux-6.9.y

platform/x86: serial-multi-instantiate: Add support for CS35L54 and CS35L57

2024-03-08T16:59:19Z

Add the ACPI HIDs and smi_node descriptions for the CS35L54 and CS35L57 Boosted Smart Amplifiers. Signed-off-by: Simon Trimmer Signed-off-by: Richard Fitzgerald Acked-by: Ilpo Järvinen Signed-off-by: Takashi Iwai Message-ID: <20240308135900.603192-4-rf@opensource.cirrus.com>

ACPI: scan: Create platform device for CS35L56

2023-07-31T14:03:39Z

The ACPI device CSC3556 is a Cirrus Logic CS35L56 mono amplifier which is used in multiples, and can be connected either to I2C or SPI. There will be multiple instances under the same Device() node. Add it to ignore_serial_bus_ids and handle it in the serial-multi-instantiate driver. There can be a 5th I2cSerialBusV2, but this is an alias address and doesn't represent a real device. Ignore this by having a dummy 5th entry in the serial-multi-instantiate instance list with the name of a non-existent driver, on the same pattern as done for bsg2150. Signed-off-by: Simon Trimmer Signed-off-by: Richard Fitzgerald Acked-by: Rafael J. Wysocki Link: https://lore.kernel.org/r/20230728111345.7224-1-rf@opensource.cirrus.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

platform/x86: serial-multi-instantiate: Auto detect IRQ resource for CSC3551

2023-07-14T17:09:04Z

The current code assumes that the CSC3551(multiple cs35l41) always have its interrupt pin connected to GPIO thus the IRQ can be acquired with acpi_dev_gpio_irq_get. However on some newer laptop models this is no longer the case as they have the CSC3551's interrupt pin connected to APIC. This causes smi_i2c_probe to fail on these machines. To support these machines, a new macro IRQ_RESOURCE_AUTO was introduced for cs35l41 smi_node, and smi_get_irq function was modified so it tries to get GPIO irq resource first and if failed, tries to get APIC irq resource for cs35l41. This patch affects only the cs35l41's probing and brings no negative influence on machines that indeed have the cs35l41's interrupt pin connected to GPIO. Signed-off-by: David Xu Link: https://lore.kernel.org/r/SY4P282MB18350CD8288687B87FFD2243E037A@SY4P282MB1835.AUSP282.PROD.OUTLOOK.COM Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

Merge tag 'spi-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

2023-04-27T18:02:26Z

Pull spi updates from Mark Brown: "A fairly standard release for SPI with the exception of a change to the API for specifying chip selects done in preparation for supporting devices with more than one chip select, this required some mechanical changes throughout the tree which have been cooking in -next happily for a while. There's also a new API to allow us to support TPM chips on half duplex controllers. Summary: - Refactoring in preparation for supporting multiple chip selects for a single device, needed by some flash devices, which required a change in the SPI device API visible throughout the tree - Support for hardware assisted interaction with SPI TPMs on half duplex controllers, implemented on nVidia Tedra210 QuadSPI - Optimisation for large transfers on fsl-cpm devices - Cleanups around device property use which fix some sisues with fwnode - Use of both void remove() and devm_platform_.*ioremap_resource() - Support for AMD Pensando Elba, Amlogic A1, Cadence device mode, Intel MetorLake-S and StarFive J7110 QuadSPI" * tag 'spi-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (185 commits) spi: bcm63xx: use macro DEFINE_SIMPLE_DEV_PM_OPS spi: tegra210-quad: Enable TPM wait polling spi: Add TPM HW flow flag spi: bcm63xx: remove PM_SLEEP based conditional compilation spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS spi: spi-cadence: Add support for Slave mode spi: spi-cadence: Switch to spi_controller structure spi: cadence-quadspi: fix suspend-resume implementations spi: dw: Add support for AMD Pensando Elba SoC spi: dw: Add AMD Pensando Elba SoC SPI Controller spi: cadence-quadspi: Disable the SPI before reconfiguring spi: cadence-quadspi: Update the read timeout based on the length spi: spi-loopback-test: Add module param for iteration length spi: add support for Amlogic A1 SPI Flash Controller dt-bindings: spi: add Amlogic A1 SPI controller spi: fsl-spi: No need to check transfer length versus word size spi: fsl-spi: Change mspi_apply_cpu_mode_quirks() to void spi: fsl-cpm: Use 16 bit mode for large transfers with even size spi: fsl-spi: Re-organise transfer bits_per_word adaptation spi: fsl-spi: Fix CPM/QE mode Litte Endian ...

platform/x86: serial-multi-instantiate: Replace all spi->chip_select and spi->cs_gpiod references with function call

2023-03-11T12:34:06Z

Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod members of struct spi_device to be an array. But changing the type of these members to array would break the spi driver functionality. To make the transition smoother introduced four new APIs to get/set the spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and spi->cs_gpiod references with get or set API calls. While adding multi-cs support in further patches the chip_select & cs_gpiod members of the spi_device structure would be converted to arrays & the "idx" parameter of the APIs would be used as array index i.e., spi->chip_select[idx] & spi->cs_gpiod[idx] respectively. Signed-off-by: Amit Kumar Mahapatra Reviewed-by: Michal Simek Link: https://lore.kernel.org/r/167847071718.26.8731852393143680608@mailman-core.alsa-project.org Signed-off-by: Mark Brown

platform/x86: serial-multi-instantiate: Convert to platform remove callback returning void

2023-03-07T11:20:45Z

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230302144732.1903781-28-u.kleine-koenig@pengutronix.de Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

Merge tag 'sound-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2022-08-19T16:46:11Z

Pull sound fixes from Takashi Iwai: "The only significant core change is ASoC DPCM fix for asymmetric setup; other remaining changes are device-specific fixes, including the hardening of string manipulations. One change in platform/x86 is the patch I forgot to apply from a series for CS35L41 codec" * tag 'sound-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits) ALSA: hda/realtek: Add quirk for Clevo NS50PU, NS70PU ALSA: info: Fix llseek return value when using callback ALSA: hda/cs8409: Support new Dolphin Variants platform/x86: serial-multi-instantiate: Add CLSA0101 Laptop ALSA: hda/realtek: Add quirk for Lenovo Yoga7 14IAL7 ALSA: hda: cs35l41: Clarify support for CSC3551 without _DSD Properties ALSA: hda/realtek: Add quirks for ASUS Zenbooks using CS35L41 ASoC: codec: tlv320aic32x4: fix mono playback via I2S ASoC: rt5640: Fix the JD voltage dropping issue ASoC: tas2770: Fix handling of mute/unmute ASoC: tas2770: Drop conflicting set_bias_level power setting ASoC: tas2770: Allow mono streams ASoC: tas2770: Set correct FSYNC polarity ASoC: Intel: fix sof_es8336 probe ASoC: DPCM: Don't pick up BE without substream ASoC: SOF: ipc3-topology: Fix clang -Wformat warning ASoC: sh: rz-ssi: Improve error handling in rz_ssi_probe() error path ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() ASoC: SOF: debug: Fix potential buffer overflow by snprintf() ASoC: Intel: avs: Fix potential buffer overflow by snprintf() ...

platform/x86: serial-multi-instantiate: Add CLSA0101 Laptop

2022-08-17T07:55:06Z

The device CLSA0101 has two instances of CS35L41 connected by I2C. Signed-off-by: Lucas Tanure Link: https://lore.kernel.org/r/20220727095924.80884-5-tanureal@opensource.cirrus.com Link: https://lore.kernel.org/r/20220816194639.13870-1-cam@neo-zeon.de Signed-off-by: Takashi Iwai

platform/x86: serial-multi-instantiate: Sort ACPI IDs by HID

2022-07-10T15:59:57Z

It's easier to maintain the sorted table. Keep the sorting order in sync with one in drivers/acpi/scan.c. Signed-off-by: Andy Shevchenko Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20220709211653.18938-6-andriy.shevchenko@linux.intel.com Signed-off-by: Hans de Goede

platform/x86: serial-multi-instantiate: Get rid of redundant 'else'

2022-07-10T15:59:54Z

In the snippets like the following if (...) return / goto / break / continue ...; else ... the 'else' is redundant. Get rid of it. Signed-off-by: Andy Shevchenko Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20220709211653.18938-5-andriy.shevchenko@linux.intel.com Signed-off-by: Hans de Goede