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authorBjorn Andersson <bjorn.andersson@linaro.org>2021-09-30 21:21:10 +0300
committerBjorn Andersson <bjorn.andersson@linaro.org>2021-10-15 03:57:16 +0300
commitb5af64fceb04dc298c5e69c517b4d83893ff060b (patch)
tree8933eefef54a9c2da21aa69fdb8887074c34e6c2 /drivers/of
parent7a99e87e2e6bce689d77185c1a127b777b2b20f4 (diff)
downloadlinux-b5af64fceb04dc298c5e69c517b4d83893ff060b.tar.xz
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
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/platform.c1
1 files changed, 1 insertions, 0 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" },
{}