soc: qcom: cmd-db: allow loading as a module

This patch enables Command DB driver to be loaded as a module. Command
DB is inherent to RPMH interaction and as such would never be unloaded.
Add supress_bind_attrs to make it a permanently loaded module.

Reviewed-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Link: https://lore.kernel.org/r/20201001154144.5226-1-ilina@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index a6c00aa9c09e640564372bda879e09d8aad3cfdf..9b4ae9c16ba73d23a0aba2744425b40c3030f5e4 100644 (file)
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig
@@ -17,7 +17,7 @@ config QCOM_AOSS_QMP
          Subsystem (AOSS) using Qualcomm Messaging Protocol (QMP).
 
 config QCOM_COMMAND_DB
-       bool "Qualcomm Command DB"
+       tristate "Qualcomm Command DB"
        depends on ARCH_QCOM || COMPILE_TEST
        depends on OF_RESERVED_MEM
        help

diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c
index fc5610603b17327b7ffa1d006d02932e5a3bc1aa..dd872017f34509a7692ef9e00b33bcc7bf9c5077 100644 (file)
--- a/drivers/soc/qcom/cmd-db.c
+++ b/drivers/soc/qcom/cmd-db.c
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. */
+/* Copyright (c) 2016-2018, 2020, The Linux Foundation. All rights reserved. */
 
 #include <linux/debugfs.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_reserved_mem.h>
@@ -340,12 +341,14 @@ static const struct of_device_id cmd_db_match_table[] = {
        { .compatible = "qcom,cmd-db" },
        { }
 };
+MODULE_DEVICE_TABLE(of, cmd_db_match_table);
 
 static struct platform_driver cmd_db_dev_driver = {
        .probe  = cmd_db_dev_probe,
        .driver = {
                   .name = "cmd-db",
                   .of_match_table = cmd_db_match_table,
+                  .suppress_bind_attrs = true,
        },
 };
 
@@ -354,3 +357,6 @@ static int __init cmd_db_device_init(void)
        return platform_driver_register(&cmd_db_dev_driver);
 }
 arch_initcall(cmd_db_device_init);
+
+MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Command DB Driver");
+MODULE_LICENSE("GPL v2");