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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
usb: ljca: Improve ACPI hardware ID documentation
Document the differences between the LJCA client device ACPI hardware IDs,
including the USBIO IDs used for LJCA devices.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Link: https://lore.kernel.org/r/20251010055625.4147844-2-sakari.ailus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
authored by
Sakari Ailus
and committed by
Greg Kroah-Hartman
877c80df
9f0b086c
+24
-13
+24
-13
drivers/usb/misc/usb-ljca.c
+24
-13
drivers/usb/misc/usb-ljca.c
···
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struct acpi_device *adev;
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};
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/*
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* ACPI hardware IDs for LJCA client devices.
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*
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* [1] Some BIOS implementations use these IDs for denoting LJCA client devices
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* even though the IDs have been allocated for USBIO. This isn't a problem
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* as the usb-ljca driver is probed based on the USB device's vendor and
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* product IDs and its client drivers are probed based on auxiliary device
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* names, not these ACPI _HIDs. List of such systems:
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*
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* Dell Precision 5490
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*/
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static const struct acpi_device_id ljca_gpio_hids[] = {
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{ "INTC100B" },
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{ "INTC1074" },
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{ "INTC1096" },
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{ "INTC10B5" },
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{ "INTC10D1" },
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{ "INTC100B" }, /* RPL LJCA GPIO */
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{ "INTC1074" }, /* CVF LJCA GPIO */
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{ "INTC1096" }, /* ADL LJCA GPIO */
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{ "INTC10B5" }, /* LNL LJCA GPIO */
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{ "INTC10D1" }, /* MTL (CVF VSC) USBIO GPIO [1] */
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{},
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};
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static const struct acpi_device_id ljca_i2c_hids[] = {
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{ "INTC100C" },
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{ "INTC1075" },
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{ "INTC1097" },
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{ "INTC10D2" },
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{ "INTC100C" }, /* RPL LJCA I2C */
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{ "INTC1075" }, /* CVF LJCA I2C */
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{ "INTC1097" }, /* ADL LJCA I2C */
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{ "INTC10D2" }, /* MTL (CVF VSC) USBIO I2C [1] */
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{},
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};
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static const struct acpi_device_id ljca_spi_hids[] = {
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{ "INTC100D" },
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{ "INTC1091" },
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{ "INTC1098" },
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{ "INTC10D3" },
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{ "INTC100D" }, /* RPL LJCA SPI */
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{ "INTC1091" }, /* TGL/ADL LJCA SPI */
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{ "INTC1098" }, /* ADL LJCA SPI */
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{ "INTC10D3" }, /* MTL (CVF VSC) USBIO SPI [1] */
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{},
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};
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