disp: msm: snapshot change for mdp driver to support multiple SIs

This change adds support in mdp and dsi driver to support
multiple SIS.

Change-Id: I432068cea17e1784d7570a472fbadaa86695df07
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
Signed-off-by: Amine Najahi <anajahi@codeaurora.org>

msm/msm_smmu.c

@@ -129,6 +129,7 @@ static void msm_smmu_detach(struct msm_mmu *mmu, const char * const *names,
 	dev_dbg(client->dev, "iommu domain detached\n");
 }
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
 static int msm_enable_smmu_translations(struct msm_mmu *mmu)
 {
 	struct msm_smmu *smmu = to_msm_smmu(mmu);
@@ -144,6 +145,24 @@ static int msm_enable_smmu_translations(struct msm_mmu *mmu)
 
 	return ret;
 }
+#else
+static int msm_smmu_set_attribute(struct msm_mmu *mmu,
+		enum iommu_attr attr, void *data)
+{
+	struct msm_smmu *smmu = to_msm_smmu(mmu);
+	struct msm_smmu_client *client = msm_smmu_to_client(smmu);
+	int ret = 0;
+
+	if (!client || !client->domain)
+		return -ENODEV;
+
+	ret = iommu_domain_set_attr(client->domain, attr, data);
+	if (ret)
+		DRM_ERROR("set domain attribute failed:%d\n", ret);
+
+	return ret;
+}
+#endif
 
 static int msm_smmu_one_to_one_unmap(struct msm_mmu *mmu,
 				uint32_t dest_address, uint32_t size)
@@ -306,7 +325,11 @@ static const struct msm_mmu_funcs funcs = {
 	.unmap_dma_buf = msm_smmu_unmap_dma_buf,
 	.destroy = msm_smmu_destroy,
 	.is_domain_secure = msm_smmu_is_domain_secure,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
 	.enable_smmu_translations = msm_enable_smmu_translations,
+#else
+	.set_attribute = msm_smmu_set_attribute,
+#endif
 	.one_to_one_map = msm_smmu_one_to_one_map,
 	.one_to_one_unmap = msm_smmu_one_to_one_unmap,
 	.get_dev = msm_smmu_get_dev,