media: camss: Enable SDM845

Enable support for SDM845 based Titan 170 ISPs.
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/qcom/camss/camss.c

@@ -939,6 +939,12 @@ static int camss_init_subdevices(struct camss *camss)
 		csid_res = csid_res_660;
 		ispif_res = &ispif_res_660;
 		vfe_res = vfe_res_660;
+	}  else if (camss->version == CAMSS_845) {
+		csiphy_res = csiphy_res_845;
+		csid_res = csid_res_845;
+		/* Titan VFEs don't have an ISPIF  */
+		ispif_res = NULL;
+		vfe_res = vfe_res_845;
 	} else {
 		return -EINVAL;
 	}
@@ -1244,6 +1250,8 @@ static int camss_configure_pd(struct camss *camss)
 	if (camss->version == CAMSS_8x96 ||
 	    camss->version == CAMSS_660)
 		nbr_pm_domains = PM_DOMAIN_GEN1_COUNT;
+	else if (camss->version == CAMSS_845)
+		nbr_pm_domains = PM_DOMAIN_GEN2_COUNT;
 
 	for (i = 0; i < nbr_pm_domains; i++) {
 		camss->genpd[i] = dev_pm_domain_attach_by_id(camss->dev, i);
@@ -1312,6 +1320,12 @@ static int camss_probe(struct platform_device *pdev)
 		camss->csiphy_num = 3;
 		camss->csid_num = 4;
 		camss->vfe_num = 2;
+	} else if (of_device_is_compatible(dev->of_node,
+					   "qcom,sdm845-camss")) {
+		camss->version = CAMSS_845;
+		camss->csiphy_num = 4;
+		camss->csid_num = 3;
+		camss->vfe_num = 3;
 	} else {
 		ret = -EINVAL;
 		goto err_free;
@@ -1443,6 +1457,8 @@ void camss_delete(struct camss *camss)
 	if (camss->version == CAMSS_8x96 ||
 	    camss->version == CAMSS_660)
 		nbr_pm_domains = PM_DOMAIN_GEN1_COUNT;
+	else if (camss->version == CAMSS_845)
+		nbr_pm_domains = PM_DOMAIN_GEN2_COUNT;
 
 	for (i = 0; i < nbr_pm_domains; i++) {
 		device_link_del(camss->genpd_link[i]);
@@ -1476,6 +1492,7 @@ static const struct of_device_id camss_dt_match[] = {
 	{ .compatible = "qcom,msm8916-camss" },
 	{ .compatible = "qcom,msm8996-camss" },
 	{ .compatible = "qcom,sdm660-camss" },
+	{ .compatible = "qcom,sdm845-camss" },
 	{ }
 };
 

drivers/media/platform/qcom/camss/camss.h

@@ -60,6 +60,8 @@ enum pm_domain {
 	PM_DOMAIN_VFE0 = 0,
 	PM_DOMAIN_VFE1 = 1,
 	PM_DOMAIN_GEN1_COUNT = 2,	/* CAMSS series of ISPs */
+	PM_DOMAIN_VFELITE = 2,		/* VFELITE / TOP GDSC */
+	PM_DOMAIN_GEN2_COUNT = 3,	/* Titan series of ISPs */
 };
 
 enum camss_version {
@@ -83,8 +85,8 @@ struct camss {
 	int vfe_num;
 	struct vfe_device *vfe;
 	atomic_t ref_count;
-	struct device *genpd[PM_DOMAIN_GEN1_COUNT];
-	struct device_link *genpd_link[PM_DOMAIN_GEN1_COUNT];
+	struct device *genpd[PM_DOMAIN_GEN2_COUNT];
+	struct device_link *genpd_link[PM_DOMAIN_GEN2_COUNT];
 };
 
 struct camss_camera_interface {