| Message ID | 20201105080014.45410-3-hdegoede@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | platform/x86: i2c-multi-instantiate: Pass ACPI fwnode to instantiated i2c-clients | expand |
diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c index 6acc8457866e..cb4688bdd6b6 100644 --- a/drivers/platform/x86/i2c-multi-instantiate.c +++ b/drivers/platform/x86/i2c-multi-instantiate.c @@ -113,7 +113,7 @@ static int i2c_multi_inst_probe(struct platform_device *pdev) board_info.irq = ret; break; default: - board_info.irq = 0; + board_info.irq = -ENOENT; break; } multi->clients[i] = i2c_acpi_new_device(dev, i, &board_info);
In some cases the i2c-driver may need access to the ACPI-fwnode as that may contain ACPI-methods supplying e.g. orientation-matrix info for accelerometers. Setting i2c_board_info.fwnode to point to the ACPI-fwnode, while leaving i2c_board_info.irq set to 0 (in the IRQ_RESOURCE_NONE case) will cause the i2c-core to assign the first IRQ described in the ACPI resources to the client, which we do not want. Set i2c_board_info.irq to -ENOENT instead of 0 in the IRQ_RESOURCE_NONE case, to avoid this issue. This is a preparation patch for passing the fwnode to i2c_acpi_new_device. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/platform/x86/i2c-multi-instantiate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)