[PATCH v2 1/2] Bluetooth: hci_bcm: Add support for MINIX Z83-4 based devices

[PATCH v2 1/2] Bluetooth: hci_bcm: Add support for MINIX Z83-4 based devices

[Ian W MORRISON]

The MINIX NEO Z83-4 and MINIX NEO Z83-4 Pro devices use an AP6255 chip
for wifi and bluetooth. Bluetooth requires an ACPI device id of BCM2EA4
with BCM4345 rev C0 firmware.

This patch adds the device id and to use trigger type IRQF_TRIGGER_FALLING.

Signed-off-by: ianwmorrison <ianwmorrison@gmail.com>

---
 drivers/bluetooth/hci_bcm.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index ab1455e63b92..77326eeb6146 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -726,6 +726,13 @@ static const struct dmi_system_id bcm_active_low_irq_dmi_table[] = {
 			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "ThinkPad 8"),
 		},
 	},
+	{
+		.ident = "MINIX Z83-4",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MINIX"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
+		},
+	},
 	{ }
 };
 
@@ -934,6 +941,7 @@ static const struct acpi_device_id bcm_acpi_match[] = {
 	{ "BCM2E7C", (kernel_ulong_t)&acpi_bcm_int_last_gpios },
 	{ "BCM2E95", (kernel_ulong_t)&acpi_bcm_int_first_gpios },
 	{ "BCM2E96", (kernel_ulong_t)&acpi_bcm_int_first_gpios },
+	{ "BCM2EA4", (kernel_ulong_t)&acpi_bcm_int_first_gpios },
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, bcm_acpi_match);
-- 
2.11.0

Re: [PATCH v2 1/2] Bluetooth: hci_bcm: Add support for MINIX Z83-4 based devices

[Marcel Holtmann]

Hi Ian,

> The MINIX NEO Z83-4 and MINIX NEO Z83-4 Pro devices use an AP6255 chip
> for wifi and bluetooth. Bluetooth requires an ACPI device id of BCM2EA4
> with BCM4345 rev C0 firmware.
> 
> This patch adds the device id and to use trigger type IRQF_TRIGGER_FALLING.
> 
> Signed-off-by: ianwmorrison <ianwmorrison@gmail.com>
> 
> ---
> drivers/bluetooth/hci_bcm.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
> index ab1455e63b92..77326eeb6146 100644
> --- a/drivers/bluetooth/hci_bcm.c
> +++ b/drivers/bluetooth/hci_bcm.c
> @@ -726,6 +726,13 @@ static const struct dmi_system_id bcm_active_low_irq_dmi_table[] = {
> 			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "ThinkPad 8"),
> 		},
> 	},
> +	{
> +		.ident = "MINIX Z83-4",
> +		.matches = {
> +			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MINIX"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
> +		},
> +	},
> 	{ }
> };
> 
> @@ -934,6 +941,7 @@ static const struct acpi_device_id bcm_acpi_match[] = {
> 	{ "BCM2E7C", (kernel_ulong_t)&acpi_bcm_int_last_gpios },
> 	{ "BCM2E95", (kernel_ulong_t)&acpi_bcm_int_first_gpios },
> 	{ "BCM2E96", (kernel_ulong_t)&acpi_bcm_int_first_gpios },
> +	{ "BCM2EA4", (kernel_ulong_t)&acpi_bcm_int_first_gpios },
> 	{ },
> };
> MODULE_DEVICE_TABLE(acpi, bcm_acpi_match);

can you actually add an extract of the ACPI table where the IRQ polarity is described wrongly. I like to have that in the commit message so that this becomes some sort of record.

Regards

Marcel

Re: [PATCH v2 1/2] Bluetooth: hci_bcm: Add support for MINIX Z83-4 based devices

[Ian W MORRISON]

On 10/7/17 5:30 AM, Marcel Holtmann wrote:
> Hi Ian,
> 
<snip>
> 
> can you actually add an extract of the ACPI table where the IRQ polarity is described wrongly. I like to have that in the commit message so that this becomes some sort of record.
> 
> Regards
> 
> Marcel
> 

Hi Marcel,

I've added an extract from the ACPI DSDT which shows 'GpioInt' requiring the trigger type IRQF_TRIGGER_FALLING and sent as v3 patch set.

Regards,
Ian