ipq60xx: remove generic backport qcom smem patch

target/linux/ipq60xx/patches-5.15/0008-v5.16-soc-qcom-smem-Support-reserved-memory-description.patch

@@ -1,172 +0,0 @@
-From 00abf58f0ec5ce9dd947792f65e9d01284a4e9c8 Mon Sep 17 00:00:00 2001
-From: Bjorn Andersson <bjorn.andersson@linaro.org>
-Date: Thu, 30 Sep 2021 11:21:10 -0700
-Subject: [PATCH 08/44] soc: qcom: smem: Support reserved-memory description
-
-Practically all modern Qualcomm platforms has a single reserved-memory
-region for SMEM. So rather than having to describe SMEM in the form of a
-node with a reference to a reserved-memory node, allow the SMEM device
-to be instantiated directly from the reserved-memory node.
-
-The current means of falling back to dereferencing the "memory-region"
-is kept as a fallback, if it's determined that the SMEM node is a
-reserved-memory node.
-
-The "qcom,smem" compatible is added to the reserved_mem_matches list, to
-allow the reserved-memory device to be probed.
-
-In order to retain the readability of the code, the resolution of
-resources is split from the actual ioremapping.
-
-Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
-Acked-by: Rob Herring <robh@kernel.org>
-Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
-Link: https://lore.kernel.org/r/20210930182111.57353-4-bjorn.andersson@linaro.org
----
- drivers/of/platform.c   |  1 +
- drivers/soc/qcom/smem.c | 57 ++++++++++++++++++++++++++++-------------
- 2 files changed, 40 insertions(+), 18 deletions(-)
-
-diff --git a/drivers/of/platform.c b/drivers/of/platform.c
-index 74afbb7a4f5e..19ba8e4d4f8d 100644
---- a/drivers/of/platform.c
-+++ b/drivers/of/platform.c
-@@ -509,6 +509,7 @@ EXPORT_SYMBOL_GPL(of_platform_default_populate);
- static const struct of_device_id reserved_mem_matches[] = {
- 	{ .compatible = "qcom,rmtfs-mem" },
- 	{ .compatible = "qcom,cmd-db" },
-+	{ .compatible = "qcom,smem" },
- 	{ .compatible = "ramoops" },
- 	{ .compatible = "nvmem-rmem" },
- 	{}
-diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
-index 4fb5aeeb0843..c7e519bfdc8a 100644
---- a/drivers/soc/qcom/smem.c
-+++ b/drivers/soc/qcom/smem.c
-@@ -9,6 +9,7 @@
- #include <linux/module.h>
- #include <linux/of.h>
- #include <linux/of_address.h>
-+#include <linux/of_reserved_mem.h>
- #include <linux/platform_device.h>
- #include <linux/sizes.h>
- #include <linux/slab.h>
-@@ -240,7 +241,7 @@ static const u8 SMEM_INFO_MAGIC[] = { 0x53, 0x49, 0x49, 0x49 }; /* SIII */
-  * @size:	size of the memory region
-  */
- struct smem_region {
--	u32 aux_base;
-+	phys_addr_t aux_base;
- 	void __iomem *virt_base;
- 	size_t size;
- };
-@@ -499,7 +500,7 @@ static void *qcom_smem_get_global(struct qcom_smem *smem,
- 	for (i = 0; i < smem->num_regions; i++) {
- 		region = &smem->regions[i];
- 
--		if (region->aux_base == aux_base || !aux_base) {
-+		if ((u32)region->aux_base == aux_base || !aux_base) {
- 			if (size != NULL)
- 				*size = le32_to_cpu(entry->size);
- 			return region->virt_base + le32_to_cpu(entry->offset);
-@@ -664,7 +665,7 @@ phys_addr_t qcom_smem_virt_to_phys(void *p)
- 		if (p < region->virt_base + region->size) {
- 			u64 offset = p - region->virt_base;
- 
--			return (phys_addr_t)region->aux_base + offset;
-+			return region->aux_base + offset;
- 		}
- 	}
- 
-@@ -863,12 +864,12 @@ qcom_smem_enumerate_partitions(struct qcom_smem *smem, u16 local_host)
- 	return 0;
- }
- 
--static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev,
--				const char *name, int i)
-+static int qcom_smem_resolve_mem(struct qcom_smem *smem, const char *name,
-+				 struct smem_region *region)
- {
-+	struct device *dev = smem->dev;
- 	struct device_node *np;
- 	struct resource r;
--	resource_size_t size;
- 	int ret;
- 
- 	np = of_parse_phandle(dev->of_node, name, 0);
-@@ -881,13 +882,9 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev,
- 	of_node_put(np);
- 	if (ret)
- 		return ret;
--	size = resource_size(&r);
- 
--	smem->regions[i].virt_base = devm_ioremap_wc(dev, r.start, size);
--	if (!smem->regions[i].virt_base)
--		return -ENOMEM;
--	smem->regions[i].aux_base = (u32)r.start;
--	smem->regions[i].size = size;
-+	region->aux_base = r.start;
-+	region->size = resource_size(&r);
- 
- 	return 0;
- }
-@@ -895,12 +892,14 @@ static int qcom_smem_map_memory(struct qcom_smem *smem, struct device *dev,
- static int qcom_smem_probe(struct platform_device *pdev)
- {
- 	struct smem_header *header;
-+	struct reserved_mem *rmem;
- 	struct qcom_smem *smem;
- 	size_t array_size;
- 	int num_regions;
- 	int hwlock_id;
- 	u32 version;
- 	int ret;
-+	int i;
- 
- 	num_regions = 1;
- 	if (of_find_property(pdev->dev.of_node, "qcom,rpm-msg-ram", NULL))
-@@ -914,13 +913,35 @@ static int qcom_smem_probe(struct platform_device *pdev)
- 	smem->dev = &pdev->dev;
- 	smem->num_regions = num_regions;
- 
--	ret = qcom_smem_map_memory(smem, &pdev->dev, "memory-region", 0);
--	if (ret)
--		return ret;
-+	rmem = of_reserved_mem_lookup(pdev->dev.of_node);
-+	if (rmem) {
-+		smem->regions[0].aux_base = rmem->base;
-+		smem->regions[0].size = rmem->size;
-+	} else {
-+		/*
-+		 * Fall back to the memory-region reference, if we're not a
-+		 * reserved-memory node.
-+		 */
-+		ret = qcom_smem_resolve_mem(smem, "memory-region", &smem->regions[0]);
-+		if (ret)
-+			return ret;
-+	}
- 
--	if (num_regions > 1 && (ret = qcom_smem_map_memory(smem, &pdev->dev,
--					"qcom,rpm-msg-ram", 1)))
--		return ret;
-+	if (num_regions > 1) {
-+		ret = qcom_smem_resolve_mem(smem, "qcom,rpm-msg-ram", &smem->regions[1]);
-+		if (ret)
-+			return ret;
-+	}
-+
-+	for (i = 0; i < num_regions; i++) {
-+		smem->regions[i].virt_base = devm_ioremap_wc(&pdev->dev,
-+							     smem->regions[i].aux_base,
-+							     smem->regions[i].size);
-+		if (!smem->regions[i].virt_base) {
-+			dev_err(&pdev->dev, "failed to remap %pa\n", &smem->regions[i].aux_base);
-+			return -ENOMEM;
-+		}
-+	}
- 
- 	header = smem->regions[0].virt_base;
- 	if (le32_to_cpu(header->initialized) != 1 ||
--- 
-2.37.2
-