media: rcar-csi2: Add R8A77990 support

Add support for R-Car E3 R8A77965 to R-Car CSI-2 driver.
Based on the experimental patch from Magnus Damm.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/rcar-vin/rcar-csi2.c

@@ -963,6 +963,11 @@ static const struct rcar_csi2_info rcar_csi2_info_r8a77970 = {
 	.confirm_start = rcsi2_confirm_start_v3m_e3,
 };
 
+static const struct rcar_csi2_info rcar_csi2_info_r8a77990 = {
+	.init_phtw = rcsi2_init_phtw_v3m_e3,
+	.confirm_start = rcsi2_confirm_start_v3m_e3,
+};
+
 static const struct of_device_id rcar_csi2_of_table[] = {
 	{
 		.compatible = "renesas,r8a7795-csi2",
@@ -980,6 +985,10 @@ static const struct of_device_id rcar_csi2_of_table[] = {
 		.compatible = "renesas,r8a77970-csi2",
 		.data = &rcar_csi2_info_r8a77970,
 	},
+	{
+		.compatible = "renesas,r8a77990-csi2",
+		.data = &rcar_csi2_info_r8a77990,
+	},
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, rcar_csi2_of_table);