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Commit 67e0298d authored by John Stultz's avatar John Stultz Committed by Todd Kjos
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UPSTREAM: soc: qcom: rpmhpd: Allow RPMHPD driver to be loaded as a module 



This patch allow the rpmhpd 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
apparently the genpd code isn't able to track usage and cleaning
things up?

So making it a permenent 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
Acked-by: default avatarSaravana Kannan <saravanak@google.com>
Tested-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Link: https://lore.kernel.org/r/20200326224459.105170-4-john.stultz@linaro.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
(cherry picked from commit d4889ec1fc6ac6321cc1e8b35bb656f970926a09)
Bug: 161478631
Bug: 161128971
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Change-Id: I39f8525cfbe206d27cfd268c2a0b7637bb07814c
parent 02ea2402

drivers/soc/qcom/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -112,7 +112,7 @@ config QCOM_RPMH 
	  help apply the aggregated state on the resource.



config QCOM_RPMHPD

	bool "Qualcomm RPMh Power domain driver"

	tristate "Qualcomm RPMh Power domain driver"

	depends on QCOM_RPMH && QCOM_COMMAND_DB

	help

	  QCOM RPMh Power domain driver to support power-domains with

drivers/soc/qcom/rpmhpd.c

+5 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include <linux/err.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/mutex.h>

#include <linux/pm_domain.h>

#include <linux/slab.h>
@@ -135,6 +136,7 @@ static const struct of_device_id rpmhpd_match_table[] = { 
	{ .compatible = "qcom,sdm845-rpmhpd", .data = &sdm845_desc },

	{ }

};

MODULE_DEVICE_TABLE(of, rpmhpd_match_table);



static int rpmhpd_send_corner(struct rpmhpd *pd, int state,

			      unsigned int corner, bool sync)
@@ -406,3 +408,6 @@ static int __init rpmhpd_init(void) 
	return platform_driver_register(&rpmhpd_driver);

}

core_initcall(rpmhpd_init);



MODULE_DESCRIPTION("Qualcomm Technologies, Inc. RPMh Power Domain Driver");

MODULE_LICENSE("GPL v2");