From b8159df9fd871ac67219f2f254043c72c238bc6c Mon Sep 17 00:00:00 2001
From: Seven Lee <wtli@nuvoton.com>
Date: Mon, 29 Mar 2021 20:00:41 +0800
Subject: drivers/i2c/nau8825: Support nau8825 for ACPI GPIO descriptors
Add definitions to describe GPIOs in generated ACPI objects.
The method allow either write a GpioInt() or Interrupt() descriptor.
Signed-off-by: Seven Lee <wtli@nuvoton.com>
Change-Id: I37fec7b0b9324dbfb61b7a8bea80f45026c54409
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51922
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
src/drivers/i2c/nau8825/chip.h | 1 +
src/drivers/i2c/nau8825/nau8825.c | 6 +++++-
2 files changed, 6 insertions(+), 1 deletion(-)
(limited to 'src/drivers/i2c')
diff --git a/src/drivers/i2c/nau8825/chip.h b/src/drivers/i2c/nau8825/chip.h
index 9ba1d94581..5b160c8724 100644
--- a/src/drivers/i2c/nau8825/chip.h
+++ b/src/drivers/i2c/nau8825/chip.h
@@ -11,6 +11,7 @@
struct drivers_i2c_nau8825_config {
/* Interrupt configuration */
struct acpi_irq irq;
+ struct acpi_gpio irq_gpio;
/* I2C Bus Frequency in Hertz (default 400kHz) */
unsigned int bus_speed;
diff --git a/src/drivers/i2c/nau8825/nau8825.c b/src/drivers/i2c/nau8825/nau8825.c
index a0769d0422..01b1f35be6 100644
--- a/src/drivers/i2c/nau8825/nau8825.c
+++ b/src/drivers/i2c/nau8825/nau8825.c
@@ -47,7 +47,11 @@ static void nau8825_fill_ssdt(const struct device *dev)
acpigen_write_name("_CRS");
acpigen_write_resourcetemplate_header();
acpi_device_write_i2c(&i2c);
- acpi_device_write_interrupt(&config->irq);
+ /* Allow either GpioInt() or Interrupt() */
+ if (config->irq_gpio.pin_count)
+ acpi_device_write_gpio(&config->irq_gpio);
+ else
+ acpi_device_write_interrupt(&config->irq);
acpigen_write_resourcetemplate_footer();
/* Device Properties */
--
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