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platform: mellanox: mlx-platform: Get interrupt line through ACPI

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Add support for getting system interrupt line from ACPI table.

Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230822113451.13785-13-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Vadim Pasternak 2023-08-22 11:34:47 +00:00 committed by Hans de Goede
parent 1316e0af2d
commit ada9ecc338
1 changed files with 11 additions and 2 deletions
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13
drivers/platform/x86/mlx-platform.c
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@ -343,6 +343,7 @@
* @hotplug_resources: system hotplug resources
* @hotplug_resources_size: size of system hotplug resources
* @hi2c_main_init_status: init status of I2C main bus
* @irq_fpga: FPGA IRQ number
*/
struct mlxplat_priv {
struct platform_device *pdev_i2c;
@ -356,6 +357,7 @@ struct mlxplat_priv {
struct resource *hotplug_resources;
unsigned int hotplug_resources_size;
u8 i2c_main_init_status;
int irq_fpga;
};
static struct platform_device *mlxplat_dev;
@ -6188,6 +6190,8 @@ static int mlxplat_post_init(struct mlxplat_priv *priv)
/* Add hotplug driver */
if (mlxplat_hotplug) {
mlxplat_hotplug->regmap = priv->regmap;
if (priv->irq_fpga)
mlxplat_hotplug->irq = priv->irq_fpga;
priv->pdev_hotplug =
platform_device_register_resndata(&mlxplat_dev->dev,
"mlxreg-hotplug", PLATFORM_DEVID_NONE,
@ -6398,11 +6402,15 @@ static int mlxplat_probe(struct platform_device *pdev)
struct resource *hotplug_resources = NULL;
struct acpi_device *acpi_dev;
struct mlxplat_priv *priv;
int i, err;
int irq_fpga = 0, i, err;
acpi_dev = ACPI_COMPANION(&pdev->dev);
if (acpi_dev)
if (acpi_dev) {
irq_fpga = acpi_dev_gpio_irq_get(acpi_dev, 0);
if (irq_fpga < 0)
return -ENODEV;
mlxplat_dev = pdev;
}
err = mlxplat_pre_init(&hotplug_resources, &hotplug_resources_size);
if (err)
@ -6417,6 +6425,7 @@ static int mlxplat_probe(struct platform_device *pdev)
platform_set_drvdata(mlxplat_dev, priv);
priv->hotplug_resources = hotplug_resources;
priv->hotplug_resources_size = hotplug_resources_size;
priv->irq_fpga = irq_fpga;
if (!mlxplat_regmap_config)
mlxplat_regmap_config = &mlxplat_mlxcpld_regmap_config;