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drivers/intel/mipi_camera: Handle NVM and VCM device type 

This change adds support in mipi_camera driver to handle NVM and VCM
device types.

Change-Id: I24cb7f010d89bc8d14e0b4c8fe693ba6e9c68941
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42466
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt Delco 2020-06-16 12:02:34 +05:30 committed by Patrick Georgi
parent 7d00293af8
commit c3a83bf514
2 changed files with 64 additions and 0 deletions
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51
src/drivers/intel/mipi_camera/camera.c
View File

@ -10,6 +10,46 @@
#include <device/pci_def.h>
#include "chip.h"
static void camera_fill_nvm(const struct device *dev)
{
struct drivers_intel_mipi_camera_config *config = dev->chip_info;
struct acpi_dp *dsd = acpi_dp_new_table("_DSD");
/* It might be possible to default size or width based on type. */
if (!config->disable_nvm_defaults && !config->nvm_pagesize)
config->nvm_pagesize = 1;
if (!config->disable_nvm_defaults && !config->nvm_readonly)
config->nvm_readonly = 1;
if (config->nvm_size)
acpi_dp_add_integer(dsd, "size", config->nvm_size);
if (config->nvm_pagesize)
acpi_dp_add_integer(dsd, "pagesize", config->nvm_pagesize);
if (config->nvm_readonly)
acpi_dp_add_integer(dsd, "read-only", config->nvm_readonly);
if (config->nvm_width)
acpi_dp_add_integer(dsd, "address-width", config->nvm_width);
acpi_dp_write(dsd);
}
static void camera_fill_vcm(const struct device *dev)
{
struct drivers_intel_mipi_camera_config *config = dev->chip_info;
struct acpi_dp *dsd;
if (!config->vcm_compat)
return;
dsd = acpi_dp_new_table("_DSD");
acpi_dp_add_string(dsd, "compatible", config->vcm_compat);
acpi_dp_write(dsd);
}
static void write_pci_camera_device(const struct device *dev)
{
struct drivers_intel_mipi_camera_config *config = dev->chip_info;
@ -93,6 +133,17 @@ static void write_camera_device_common(const struct device *dev)
config->device_type == INTEL_ACPI_CAMERA_VCM) {
acpigen_write_name_integer("CAMD", config->device_type);
}
switch (config->device_type) {
case INTEL_ACPI_CAMERA_VCM:
camera_fill_vcm(dev);
break;
case INTEL_ACPI_CAMERA_NVM:
camera_fill_nvm(dev);
break;
default:
break;
}
}
static void camera_fill_ssdt(const struct device *dev)

13
src/drivers/intel/mipi_camera/chip.h
View File

@ -95,6 +95,19 @@ struct drivers_intel_mipi_camera_config {
const char *vcm_name; /* defaults to |vcm_address| device */
uint16_t rom_address; /* I2C to use if ssdb.rom_type != 0 */
uint16_t vcm_address; /* I2C to use if ssdb.vcm_type != 0 */
/*
* Settings specific to nvram. Many values, if left as zero, will be assigned a default.
* Set disable_nvm_defaults to non-zero if you want to disable the defaulting behavior
* so you can use zero for a value.
*/
bool disable_nvm_defaults;
uint32_t nvm_size;
uint32_t nvm_pagesize;
uint32_t nvm_readonly;
uint32_t nvm_width;
/* Settings specific to vcm */
const char *vcm_compat;
};
#endif