drivers/intel/mipi_camera: SSDT changes to add PLD

This change updates mipi_camera driver to add PLD section to SSDT.

Change-Id: If65b9cbabca95e9645d8e5023ce7fd78b0625d1e
Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42469
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/drivers/intel/mipi_camera/camera.c

@@ -14,6 +14,54 @@
 #define SENSOR_TYPE_UUID	"26257549-9271-4ca4-bb43-c4899d5a4881"
 #define DEFAULT_ENDPOINT	0
 
+static void apply_pld_defaults(struct drivers_intel_mipi_camera_config *config)
+{
+	if (!config->pld.ignore_color)
+		config->pld.ignore_color = 1;
+
+	if (!config->pld.visible)
+		config->pld.visible = 1;
+
+	if (!config->pld.vertical_offset)
+		config->pld.vertical_offset = 0xffff;
+
+	if (!config->pld.horizontal_offset)
+		config->pld.horizontal_offset = 0xffff;
+
+	/*
+	 * PLD_PANEL_TOP has a value of zero, so the following will change any instance of
+	 * PLD_PANEL_TOP to PLD_PANEL_FRONT unless disable_pld_defaults is set.
+	 */
+	if (!config->pld.panel)
+		config->pld.panel = PLD_PANEL_FRONT;
+
+	/*
+	 * PLD_HORIZONTAL_POSITION_LEFT has a value of zero, so the following will change any
+	 * instance of that value to PLD_HORIZONTAL_POSITION_CENTER unless disable_pld_defaults
+	 * is set.
+	 */
+	if (!config->pld.horizontal_position)
+		config->pld.horizontal_position = PLD_HORIZONTAL_POSITION_CENTER;
+
+	/*
+	 * The desired default for |vertical_position| is PLD_VERTICAL_POSITION_UPPER, which
+	 * has a value of zero so no work is needed to set a default. The same applies for
+	 * setting |shape| to PLD_SHAPE_ROUND.
+	 */
+}
+
+static void camera_generate_pld(const struct device *dev)
+{
+	struct drivers_intel_mipi_camera_config *config = dev->chip_info;
+
+	if (config->use_pld) {
+		if (!config->disable_pld_defaults)
+			apply_pld_defaults(config);
+
+		acpigen_write_pld(&config->pld);
+	}
+}
+
 static uint32_t address_for_dev_type(const struct device *dev, uint8_t dev_type)
 {
 	struct drivers_intel_mipi_camera_config *config = dev->chip_info;
@@ -146,6 +194,8 @@ static void camera_fill_sensor(const struct device *dev)
 	const char *vcm_name = NULL;
 	struct acpi_dp *lens_focus = NULL;
 
+	camera_generate_pld(dev);
+
 	camera_fill_sensor_defaults(config);
 
 	/* _DSM */

src/drivers/intel/mipi_camera/chip.h

@@ -4,6 +4,7 @@
 #define __INTEL_MIPI_CAMERA_CHIP_H__
 
 #include <stdint.h>
+#include <acpi/acpi_pld.h>
 
 #define DEFAULT_LINK_FREQ	450000000
 #define MAX_PWDB_ENTRIES	12
@@ -138,6 +139,9 @@ struct drivers_intel_mipi_camera_config {
 	const char *sensor_name;	/* default "UNKNOWN" */
 	const char *remote_name;	/* default "\_SB.PCI0.CIO2" */
 	const char *vcm_name;		/* defaults to |vcm_address| device */
+	bool use_pld;
+	bool disable_pld_defaults;
+	struct acpi_pld pld;
 	uint16_t rom_address;		/* I2C to use if ssdb.rom_type != 0 */
 	uint16_t vcm_address;		/* I2C to use if ssdb.vcm_type != 0 */
 	/*