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drivers/intel/mipi_camera: Fix SSDT generation for IPU devices 

Includes changes in mipi_camera driver to fix following issues related
to SSDT generation for IPU devices.
1. acpigen_write_device was not getting called for IPU devices
2. acpigen_pop_len was called for a generic devices without calling
   acpigen_write_device

Change-Id: I309edd065719cb8250f1241898bb5854004d2a9f
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44025
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Sugnan Prabhu S 2020-07-29 23:18:46 +05:30 committed by Tim Wawrzynczak
parent 94e0a10f00
commit 3ea036f9ce
1 changed files with 22 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/drivers/intel/mipi_camera/camera.c
View File

@ -761,8 +761,6 @@ static void fill_power_res_sequence(struct drivers_intel_mipi_camera_config *con
static void write_pci_camera_device(const struct device *dev)
{
struct drivers_intel_mipi_camera_config *config = dev->chip_info;
if (dev->path.type != DEVICE_PATH_PCI) {
printk(BIOS_ERR, "CIO2/IMGU devices require PCI\n");
return;
@ -770,8 +768,7 @@ static void write_pci_camera_device(const struct device *dev)
acpigen_write_device(acpi_device_name(dev));
acpigen_write_ADR_pci_device(dev);
acpigen_write_name_string("_DDN", config->device_type == INTEL_ACPI_CAMERA_CIO2 ?
"Camera and Imaging Subsystem" : "Imaging Unit");
acpigen_write_name_string("_DDN", "Camera and Imaging Subsystem");
}
static void write_i2c_camera_device(const struct device *dev, const char *scope)
@ -784,11 +781,6 @@ static void write_i2c_camera_device(const struct device *dev, const char *scope)
.resource = scope,
};
if (dev->path.type != DEVICE_PATH_I2C) {
printk(BIOS_ERR, "Non-CIO2/IMGU devices require I2C\n");
return;
}
acpigen_write_device(acpi_device_name(dev));
/* add power resource */
@ -930,18 +922,29 @@ static void camera_fill_ssdt(const struct device *dev)
acpigen_pop_len(); /* Guarded power resource operations scope */
}
/* Device */
scope = acpi_device_scope(dev);
if (!scope)
return;
switch (dev->path.type) {
case DEVICE_PATH_I2C:
scope = acpi_device_scope(dev);
if (!scope)
return;
acpigen_write_scope(scope);
if (config->device_type == INTEL_ACPI_CAMERA_CIO2 ||
config->device_type == INTEL_ACPI_CAMERA_IMGU)
write_pci_camera_device(dev);
else
acpigen_write_scope(scope);
write_i2c_camera_device(dev, scope);
break;
case DEVICE_PATH_GENERIC:
pdev = dev->bus->dev;
scope = acpi_device_scope(pdev);
if (!scope)
return;
acpigen_write_scope(scope);
write_pci_camera_device(pdev);
break;
default:
printk(BIOS_ERR, "Unsupported device type: %x\n"
"OS camera driver will likely not work\n", dev->path.type);
return;
}
write_camera_device_common(dev);