summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/acpi/acpigen.c12
-rw-r--r--src/drivers/generic/gpio_keys/gpio_keys.c2
-rw-r--r--src/drivers/generic/max98357a/max98357a.c2
-rw-r--r--src/drivers/i2c/generic/generic.c7
-rw-r--r--src/drivers/i2c/rt5663/rt5663.c2
-rw-r--r--src/drivers/spi/acpi/acpi.c6
-rw-r--r--src/drivers/uart/acpi/acpi.c6
-rw-r--r--src/drivers/usb/acpi/usb_acpi.c2
-rw-r--r--src/include/acpi/acpi_device.h41
9 files changed, 40 insertions, 40 deletions
diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c
index efc5a16195..fc6da1beb9 100644
--- a/src/acpi/acpigen.c
+++ b/src/acpi/acpigen.c
@@ -1800,15 +1800,15 @@ int __weak acpigen_soc_clear_tx_gpio(unsigned int gpio_num)
*/
int acpigen_enable_tx_gpio(struct acpi_gpio *gpio)
{
- if (gpio->polarity == ACPI_GPIO_ACTIVE_HIGH)
- return acpigen_soc_set_tx_gpio(gpio->pins[0]);
- else
+ if (gpio->active_low)
return acpigen_soc_clear_tx_gpio(gpio->pins[0]);
+ else
+ return acpigen_soc_set_tx_gpio(gpio->pins[0]);
}
int acpigen_disable_tx_gpio(struct acpi_gpio *gpio)
{
- if (gpio->polarity == ACPI_GPIO_ACTIVE_LOW)
+ if (gpio->active_low)
return acpigen_soc_set_tx_gpio(gpio->pins[0]);
else
return acpigen_soc_clear_tx_gpio(gpio->pins[0]);
@@ -1818,7 +1818,7 @@ void acpigen_get_rx_gpio(struct acpi_gpio *gpio)
{
acpigen_soc_read_rx_gpio(gpio->pins[0]);
- if (gpio->polarity == ACPI_GPIO_ACTIVE_LOW)
+ if (gpio->active_low)
acpigen_write_xor(LOCAL0_OP, 1, LOCAL0_OP);
}
@@ -1826,7 +1826,7 @@ void acpigen_get_tx_gpio(struct acpi_gpio *gpio)
{
acpigen_soc_get_tx_gpio(gpio->pins[0]);
- if (gpio->polarity == ACPI_GPIO_ACTIVE_LOW)
+ if (gpio->active_low)
acpigen_write_xor(LOCAL0_OP, 1, LOCAL0_OP);
}
diff --git a/src/drivers/generic/gpio_keys/gpio_keys.c b/src/drivers/generic/gpio_keys/gpio_keys.c
index f9d71876fa..80ac407904 100644
--- a/src/drivers/generic/gpio_keys/gpio_keys.c
+++ b/src/drivers/generic/gpio_keys/gpio_keys.c
@@ -43,7 +43,7 @@ static struct acpi_dp *gpio_keys_add_child_node(
acpi_dp_add_integer(dsd, "debounce-interval",
key->debounce_interval);
acpi_dp_add_gpio(dsd, "gpios", parent_path, 0, 0,
- config->gpio.polarity);
+ config->gpio.active_low);
return dsd;
}
diff --git a/src/drivers/generic/max98357a/max98357a.c b/src/drivers/generic/max98357a/max98357a.c
index 575548bd27..44f8802490 100644
--- a/src/drivers/generic/max98357a/max98357a.c
+++ b/src/drivers/generic/max98357a/max98357a.c
@@ -51,7 +51,7 @@ static void max98357a_fill_ssdt(const struct device *dev)
path = acpi_device_path(dev);
dp = acpi_dp_new_table("_DSD");
acpi_dp_add_gpio(dp, "sdmode-gpio", path, 0, 0,
- config->sdmode_gpio.polarity);
+ config->sdmode_gpio.active_low);
acpi_dp_add_integer(dp, "sdmode-delay", config->sdmode_delay);
acpi_dp_write(dp);
diff --git a/src/drivers/i2c/generic/generic.c b/src/drivers/i2c/generic/generic.c
index 5893a6fdad..18fd55cd58 100644
--- a/src/drivers/i2c/generic/generic.c
+++ b/src/drivers/i2c/generic/generic.c
@@ -114,16 +114,15 @@ void i2c_generic_fill_ssdt(const struct device *dev,
if (irq_gpio_index != -1)
acpi_dp_add_gpio(dsd, "irq-gpios", path,
irq_gpio_index, 0,
- config->irq_gpio.polarity ==
- ACPI_GPIO_ACTIVE_LOW);
+ config->irq_gpio.active_low);
if (reset_gpio_index != -1)
acpi_dp_add_gpio(dsd, "reset-gpios", path,
reset_gpio_index, 0,
- config->reset_gpio.polarity);
+ config->reset_gpio.active_low);
if (enable_gpio_index != -1)
acpi_dp_add_gpio(dsd, "enable-gpios", path,
enable_gpio_index, 0,
- config->enable_gpio.polarity);
+ config->enable_gpio.active_low);
/* Add generic property list */
acpi_dp_add_property_list(dsd, config->property_list,
config->property_count);
diff --git a/src/drivers/i2c/rt5663/rt5663.c b/src/drivers/i2c/rt5663/rt5663.c
index da12a4d761..272cf78319 100644
--- a/src/drivers/i2c/rt5663/rt5663.c
+++ b/src/drivers/i2c/rt5663/rt5663.c
@@ -53,7 +53,7 @@ static void rt5663_fill_ssdt(const struct device *dev)
dp = acpi_dp_new_table("_DSD");
if (config->irq_gpio.pin_count)
acpi_dp_add_gpio(dp, "irq-gpios", acpi_device_path(dev), 0, 0,
- config->irq_gpio.polarity == ACPI_GPIO_ACTIVE_LOW);
+ config->irq_gpio.active_low);
RT5663_DP_INT("dc_offset_l_manual", config->dc_offset_l_manual);
RT5663_DP_INT("dc_offset_r_manual", config->dc_offset_r_manual);
RT5663_DP_INT("dc_offset_l_manual_mic", config->dc_offset_l_manual_mic);
diff --git a/src/drivers/spi/acpi/acpi.c b/src/drivers/spi/acpi/acpi.c
index 4127f9a93a..c0e776eee1 100644
--- a/src/drivers/spi/acpi/acpi.c
+++ b/src/drivers/spi/acpi/acpi.c
@@ -139,15 +139,15 @@ static void spi_acpi_fill_ssdt_generator(const struct device *dev)
if (irq_gpio_index >= 0)
acpi_dp_add_gpio(dsd, "irq-gpios", path,
irq_gpio_index, 0,
- config->irq_gpio.polarity);
+ config->irq_gpio.active_low);
if (reset_gpio_index >= 0)
acpi_dp_add_gpio(dsd, "reset-gpios", path,
reset_gpio_index, 0,
- config->reset_gpio.polarity);
+ config->reset_gpio.active_low);
if (enable_gpio_index >= 0)
acpi_dp_add_gpio(dsd, "enable-gpios", path,
enable_gpio_index, 0,
- config->enable_gpio.polarity);
+ config->enable_gpio.active_low);
acpi_dp_write(dsd);
}
diff --git a/src/drivers/uart/acpi/acpi.c b/src/drivers/uart/acpi/acpi.c
index 9b4d1fa7f0..f9d9d8fa19 100644
--- a/src/drivers/uart/acpi/acpi.c
+++ b/src/drivers/uart/acpi/acpi.c
@@ -103,15 +103,15 @@ static void uart_acpi_fill_ssdt(const struct device *dev)
if (irq_gpio_index >= 0)
acpi_dp_add_gpio(dsd, "irq-gpios", path,
irq_gpio_index, 0,
- config->irq_gpio.polarity);
+ config->irq_gpio.active_low);
if (reset_gpio_index >= 0)
acpi_dp_add_gpio(dsd, "reset-gpios", path,
reset_gpio_index, 0,
- config->reset_gpio.polarity);
+ config->reset_gpio.active_low);
if (enable_gpio_index >= 0)
acpi_dp_add_gpio(dsd, "enable-gpios", path,
enable_gpio_index, 0,
- config->enable_gpio.polarity);
+ config->enable_gpio.active_low);
acpi_dp_write(dsd);
}
diff --git a/src/drivers/usb/acpi/usb_acpi.c b/src/drivers/usb/acpi/usb_acpi.c
index e136df0b38..d33b7deeaf 100644
--- a/src/drivers/usb/acpi/usb_acpi.c
+++ b/src/drivers/usb/acpi/usb_acpi.c
@@ -57,7 +57,7 @@ static void usb_acpi_fill_ssdt_generator(const struct device *dev)
dsd = acpi_dp_new_table("_DSD");
acpi_dp_add_gpio(dsd, "reset-gpio", path, 0, 0,
- config->reset_gpio.polarity);
+ config->reset_gpio.active_low);
acpi_dp_write(dsd);
}
diff --git a/src/include/acpi/acpi_device.h b/src/include/acpi/acpi_device.h
index e01b6fd027..6287ba1672 100644
--- a/src/include/acpi/acpi_device.h
+++ b/src/include/acpi/acpi_device.h
@@ -158,11 +158,6 @@ enum acpi_gpio_io_restrict {
ACPI_GPIO_IO_RESTRICT_PRESERVE
};
-enum acpi_gpio_polarity {
- ACPI_GPIO_ACTIVE_HIGH = 0,
- ACPI_GPIO_ACTIVE_LOW = 1,
-};
-
#define ACPI_GPIO_REVISION_ID 1
#define ACPI_GPIO_MAX_PINS 8
@@ -182,37 +177,43 @@ struct acpi_gpio {
uint16_t output_drive_strength; /* 1/100 mA */
int io_shared;
enum acpi_gpio_io_restrict io_restrict;
- enum acpi_gpio_polarity polarity;
+ /*
+ * As per ACPI spec, GpioIo does not have any polarity associated with it. Linux kernel
+ * uses `active_low` argument within GPIO _DSD property to allow BIOS to indicate if the
+ * corresponding GPIO should be treated as active low. Thus, if the GPIO has active high
+ * polarity or if it does not have any polarity, then the `active_low` argument is
+ * supposed to be set to 0.
+ *
+ * Reference:
+ * https://www.kernel.org/doc/html/latest/firmware-guide/acpi/gpio-properties.html
+ */
+ bool active_low;
};
/* GpioIo-related macros */
-#define ACPI_GPIO_CFG(_gpio, _io_restrict, _polarity) { \
+#define ACPI_GPIO_CFG(_gpio, _io_restrict, _active_low) { \
.type = ACPI_GPIO_TYPE_IO, \
.pull = ACPI_GPIO_PULL_DEFAULT, \
.io_restrict = _io_restrict, \
- .polarity = _polarity, \
+ .active_low = _active_low, \
.pin_count = 1, \
.pins = { (_gpio) } }
/* Basic output GPIO with default pull settings */
-#define ACPI_GPIO_OUTPUT_CFG(gpio, polarity) \
- ACPI_GPIO_CFG(gpio, ACPI_GPIO_IO_RESTRICT_OUTPUT, polarity)
+#define ACPI_GPIO_OUTPUT_CFG(gpio, active_low) \
+ ACPI_GPIO_CFG(gpio, ACPI_GPIO_IO_RESTRICT_OUTPUT, active_low)
-#define ACPI_GPIO_OUTPUT_ACTIVE_HIGH(gpio) \
- ACPI_GPIO_OUTPUT_CFG(gpio, ACPI_GPIO_ACTIVE_HIGH)
-
-#define ACPI_GPIO_OUTPUT_ACTIVE_LOW(gpio) \
- ACPI_GPIO_OUTPUT_CFG(gpio, ACPI_GPIO_ACTIVE_LOW)
+#define ACPI_GPIO_OUTPUT(gpio) ACPI_GPIO_OUTPUT_CFG(gpio, 0)
+#define ACPI_GPIO_OUTPUT_ACTIVE_HIGH(gpio) ACPI_GPIO_OUTPUT_CFG(gpio, 0)
+#define ACPI_GPIO_OUTPUT_ACTIVE_LOW(gpio) ACPI_GPIO_OUTPUT_CFG(gpio, 1)
/* Basic input GPIO with default pull settings */
#define ACPI_GPIO_INPUT_CFG(gpio, polarity) \
ACPI_GPIO_CFG(gpio, ACPI_GPIO_IO_RESTRICT_INPUT, polarity)
-#define ACPI_GPIO_INPUT_ACTIVE_HIGH(gpio) \
- ACPI_GPIO_INPUT_CFG(gpio, ACPI_GPIO_ACTIVE_HIGH)
-
-#define ACPI_GPIO_INPUT_ACTIVE_LOW(gpio) \
- ACPI_GPIO_INPUT_CFG(gpio, ACPI_GPIO_ACTIVE_LOW)
+#define ACPI_GPIO_INPUT(gpio) ACPI_GPIO_INPUT_CFG(gpio, 0)
+#define ACPI_GPIO_INPUT_ACTIVE_HIGH(gpio) ACPI_GPIO_INPUT_CFG(gpio, 0)
+#define ACPI_GPIO_INPUT_ACTIVE_LOW(gpio) ACPI_GPIO_INPUT_CFG(gpio, 1)
/* GpioInt-related macros */
#define ACPI_GPIO_IRQ_CFG(_gpio, _mode, _polarity, _wake) { \
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 21:34:30 +0000