Hi Richard, On 7/26/23 13:27, Richard Fitzgerald wrote: > From: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx> > > 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. > > Signed-off-by: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx> > Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx> Thanks, patch looks good to me: Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx> I have 1 other serial-multi-instantiate.c patches in my fixes branch (see below) and since this just adds new hw-ids I think this can go upstream through my fixes branch too. Rafael, do you agree with me taking this upstream as a 6.5 fix? And if yes may I have your ack for that ? About that 1 patch, that adds a new IRQ type: IRQ_RESOURCE_AUTO and I wonder if this patch should not use that same new type right from the start: https://git.kernel.org/pub/scm/linux/kernel/agit/pdx86/platform-drivers-x86.git/commit/?h=fixes&id=676b7c5ecab36274442887ceadd6dee8248a244f This makes me realize that I should probably have pinged you and ask for feedback on that patch since it was send by a community member rather then by Cirrus. Note this is currently in Linus' master tree, so any fixes to it need to be submitted on top (not that I expect any issues since it still behaves as before on acpi_dev_gpio_irq_get() success and only adds an platform_get_irq() fallback when that fails). Regards, Hans > --- > drivers/acpi/scan.c | 1 + > drivers/platform/x86/serial-multi-instantiate.c | 12 ++++++++++++ > 2 files changed, 13 insertions(+) > > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c > index 5b145f1aaa1b..87e385542576 100644 > --- a/drivers/acpi/scan.c > +++ b/drivers/acpi/scan.c > @@ -1714,6 +1714,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device) > {"BSG1160", }, > {"BSG2150", }, > {"CSC3551", }, > + {"CSC3556", }, > {"INT33FE", }, > {"INT3515", }, > /* Non-conforming _HID for Cirrus Logic already released */ > diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c > index f3dcbdd72fec..dcf2914b97c9 100644 > --- a/drivers/platform/x86/serial-multi-instantiate.c > +++ b/drivers/platform/x86/serial-multi-instantiate.c > @@ -316,6 +316,17 @@ static const struct smi_node cs35l41_hda = { > .bus_type = SMI_AUTO_DETECT, > }; > > +static const struct smi_node cs35l56_hda = { > + .instances = { > + { "cs35l56-hda", IRQ_RESOURCE_GPIO, 0 }, > + { "cs35l56-hda", IRQ_RESOURCE_GPIO, 0 }, > + { "cs35l56-hda", IRQ_RESOURCE_GPIO, 0 }, > + { "cs35l56-hda", IRQ_RESOURCE_GPIO, 0 }, > + {} > + }, > + .bus_type = SMI_AUTO_DETECT, > +}; > + > /* > * Note new device-ids must also be added to ignore_serial_bus_ids in > * drivers/acpi/scan.c: acpi_device_enumeration_by_parent(). > @@ -324,6 +335,7 @@ static const struct acpi_device_id smi_acpi_ids[] = { > { "BSG1160", (unsigned long)&bsg1160_data }, > { "BSG2150", (unsigned long)&bsg2150_data }, > { "CSC3551", (unsigned long)&cs35l41_hda }, > + { "CSC3556", (unsigned long)&cs35l56_hda }, > { "INT3515", (unsigned long)&int3515_data }, > /* Non-conforming _HID for Cirrus Logic already released */ > { "CLSA0100", (unsigned long)&cs35l41_hda },