soc: qcom: rpmh: Allow RPMH driver to be loaded as a module

This patch allow the rpmh driver to be loaded as a permenent
module. Meaning it can be loaded from a module, but then cannot
be unloaded.

Ideally, it would include a remove hook and related logic, but
the rpmh driver is fairly core to the system, so once its loaded
with almost anything else to get the system to go, the dependencies
are not likely to ever also be removed.

So making it a permanent module at least improves things slightly
over requiring it to be a built in driver.

Cc: Todd Kjos <tkjos@google.com>
Cc: Saravana Kannan <saravanak@google.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[mkshah: Fix typos in commit message, send after removing _rcuidle trace]
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1601877596-32676-3-git-send-email-mkshah@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index 6a3b69b..a6c00aa 100644 (file)
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig
@@ -108,7 +108,7 @@ config QCOM_RMTFS_MEM
          Say y here if you intend to boot the modem remoteproc.
 
 config QCOM_RPMH
-       bool "Qualcomm RPM-Hardened (RPMH) Communication"
+       tristate "Qualcomm RPM-Hardened (RPMH) Communication"
        depends on ARCH_QCOM || COMPILE_TEST
        help
          Support for communication with the hardened-RPM blocks in

diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 35a7a50..37969dc 100644 (file)
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -13,6 +13,7 @@
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
@@ -1018,6 +1019,7 @@ static const struct of_device_id rpmh_drv_match[] = {
        { .compatible = "qcom,rpmh-rsc", },
        { }
 };
+MODULE_DEVICE_TABLE(of, rpmh_drv_match);
 
 static struct platform_driver rpmh_driver = {
        .probe = rpmh_rsc_probe,
@@ -1033,3 +1035,6 @@ static int __init rpmh_driver_init(void)
        return platform_driver_register(&rpmh_driver);
 }
 arch_initcall(rpmh_driver_init);
+
+MODULE_DESCRIPTION("Qualcomm Technologies, Inc. RPMh Driver");
+MODULE_LICENSE("GPL v2");