Re: [PATCH v5 9/9] ACPI / scan: Create platform device for CS35L41

Rafael J. Wysocki
2022-01-21T16:02:49Z

On Fri, Jan 21, 2022 at 3:33 PM Stefan Binding
<sbinding@opensource.cirrus.com> wrote:
>
> From: Lucas Tanure <tanureal@opensource.cirrus.com>
>
> The ACPI device with CSC3551 or CLSA0100 are sound cards
> with multiple instances of CS35L41 connectec by I2C or SPI

s/connectec/connected/

> to the main CPU.
>
> We add an ID to the ignore_serial_bus_ids list to enumerate
> all I2C or SPI devices correctly.

The serial-multi-instantiate change needs to be mentioned too.

> Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
> Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
> ---
> drivers/acpi/scan.c | 3 +++
> drivers/platform/x86/serial-multi-instantiate.c | 14 ++++++++++++++
> 2 files changed, 17 insertions(+)
>
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index 38c4f55960f4..b59e4c994878 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -1744,8 +1744,11 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
> */
> {"BSG1160", },
> {"BSG2150", },
> + {"CSC3551", },
> {"INT33FE", },
> {"INT3515", },
> + /* Non-conforming _HID for Cirrus Logic already released */
> + {"CLSA0100", },
> /*
> * HIDs of device with an UartSerialBusV2 resource for which userspace
> * expects a regular tty cdev to be created (instead of the in kernel
> diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c
> index 535c80789852..cef201065fdb 100644
> --- a/drivers/platform/x86/serial-multi-instantiate.c
> +++ b/drivers/platform/x86/serial-multi-instantiate.c
> @@ -305,6 +305,17 @@ static const struct smi_node int3515_data = {
> .bus_type = SMI_I2C,
> };
>
> +static const struct smi_node cs35l41_hda = {
> + .instances = {
> + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 },
> + {}
> + },
> + .bus_type = SMI_AUTO_DETECT,
> +};
> +
> /*
> * Note new device-ids must also be added to serial_multi_instantiate_ids in
> * drivers/acpi/scan.c: acpi_device_enumeration_by_parent().
> @@ -313,6 +324,9 @@ static const struct acpi_device_id smi_acpi_ids[] = {
> { "BSG1160", (unsigned long)&bsg1160_data },
> { "BSG2150", (unsigned long)&bsg2150_data },
> { "INT3515", (unsigned long)&int3515_data },
> + { "CSC3551", (unsigned long)&cs35l41_hda },
> + /* Non-conforming _HID for Cirrus Logic already released */
> + { "CLSA0100", (unsigned long)&cs35l41_hda },
> { }
> };
> MODULE_DEVICE_TABLE(acpi, smi_acpi_ids);
> --
> 2.25.1
>