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authorBjorn Andersson <bjorn.andersson@linaro.org>2016-11-03 19:37:25 -0700
committerBjorn Andersson <bjorn.andersson@linaro.org>2016-11-14 21:52:19 -0800
commit6de1a507c46bf22ed97043495b9ab96e4d5c213b (patch)
treeda576a02806bb50298542d61cbc73e2760737944 /drivers/remoteproc
parentcda8529346935fc86f476999ac4fbfe4e17abf11 (diff)
downloadlinux-6de1a507c46bf22ed97043495b9ab96e4d5c213b.tar.bz2
remoteproc: qcom_wcnss: Fix circular module dependency
The tie between the main WCNSS driver and the IRIS driver causes a circular dependency between the two modules. Neither part makes sense to have on their own so lets merge them into one module. For the sake of picking up the clock and regulator resources described in the iris of_node we need an associated struct device. But, to keep the size of the patch down we continue to represent the IRIS part as its own platform_driver, within the same module, rather than setting up a dummy device. Fixes: aed361adca9f ("remoteproc: qcom: Introduce WCNSS peripheral image loader") Reported-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/Kconfig5
-rw-r--r--drivers/remoteproc/Makefile5
-rw-r--r--drivers/remoteproc/qcom_wcnss.c25
-rw-r--r--drivers/remoteproc/qcom_wcnss.h2
-rw-r--r--drivers/remoteproc/qcom_wcnss_iris.c8
5 files changed, 29 insertions, 16 deletions
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index f396bfef5d42..5fcbefcb8636 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -91,17 +91,12 @@ config QCOM_Q6V5_PIL
Say y here to support the Qualcomm Peripherial Image Loader for the
Hexagon V5 based remote processors.
-config QCOM_WCNSS_IRIS
- tristate
- depends on OF && ARCH_QCOM
-
config QCOM_WCNSS_PIL
tristate "Qualcomm WCNSS Peripheral Image Loader"
depends on OF && ARCH_QCOM
depends on QCOM_SMEM
select QCOM_MDT_LOADER
select QCOM_SCM
- select QCOM_WCNSS_IRIS
select REMOTEPROC
help
Say y here to support the Peripheral Image Loader for the Qualcomm
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index 6da9b12f9798..d79eeeae6366 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_WKUP_M3_RPROC) += wkup_m3_rproc.o
obj-$(CONFIG_DA8XX_REMOTEPROC) += da8xx_remoteproc.o
obj-$(CONFIG_QCOM_MDT_LOADER) += qcom_mdt_loader.o
obj-$(CONFIG_QCOM_Q6V5_PIL) += qcom_q6v5_pil.o
-obj-$(CONFIG_QCOM_WCNSS_IRIS) += qcom_wcnss_iris.o
-obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss.o
+obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss_pil.o
+qcom_wcnss_pil-y += qcom_wcnss.o
+qcom_wcnss_pil-y += qcom_wcnss_iris.o
obj-$(CONFIG_ST_REMOTEPROC) += st_remoteproc.o
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index 81fe891ef526..ebd61f5d18bb 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -148,7 +148,6 @@ void qcom_wcnss_assign_iris(struct qcom_wcnss *wcnss,
mutex_unlock(&wcnss->iris_lock);
}
-EXPORT_SYMBOL_GPL(qcom_wcnss_assign_iris);
static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
{
@@ -647,6 +646,28 @@ static struct platform_driver wcnss_driver = {
},
};
-module_platform_driver(wcnss_driver);
+static int __init wcnss_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&wcnss_driver);
+ if (ret)
+ return ret;
+
+ ret = platform_driver_register(&qcom_iris_driver);
+ if (ret)
+ platform_driver_unregister(&wcnss_driver);
+
+ return ret;
+}
+module_init(wcnss_init);
+
+static void __exit wcnss_exit(void)
+{
+ platform_driver_unregister(&qcom_iris_driver);
+ platform_driver_unregister(&wcnss_driver);
+}
+module_exit(wcnss_exit);
+
MODULE_DESCRIPTION("Qualcomm Peripherial Image Loader for Wireless Subsystem");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/remoteproc/qcom_wcnss.h b/drivers/remoteproc/qcom_wcnss.h
index 9dc4a9fe41e1..25fb7f62a457 100644
--- a/drivers/remoteproc/qcom_wcnss.h
+++ b/drivers/remoteproc/qcom_wcnss.h
@@ -4,6 +4,8 @@
struct qcom_iris;
struct qcom_wcnss;
+extern struct platform_driver qcom_iris_driver;
+
struct wcnss_vreg_info {
const char * const name;
int min_voltage;
diff --git a/drivers/remoteproc/qcom_wcnss_iris.c b/drivers/remoteproc/qcom_wcnss_iris.c
index 07ef653cfbdf..e842be58e8c7 100644
--- a/drivers/remoteproc/qcom_wcnss_iris.c
+++ b/drivers/remoteproc/qcom_wcnss_iris.c
@@ -94,14 +94,12 @@ disable_regulators:
return ret;
}
-EXPORT_SYMBOL_GPL(qcom_iris_enable);
void qcom_iris_disable(struct qcom_iris *iris)
{
clk_disable_unprepare(iris->xo_clk);
regulator_bulk_disable(iris->num_vregs, iris->vregs);
}
-EXPORT_SYMBOL_GPL(qcom_iris_disable);
static int qcom_iris_probe(struct platform_device *pdev)
{
@@ -175,7 +173,7 @@ static const struct of_device_id iris_of_match[] = {
};
MODULE_DEVICE_TABLE(of, iris_of_match);
-static struct platform_driver wcnss_driver = {
+struct platform_driver qcom_iris_driver = {
.probe = qcom_iris_probe,
.remove = qcom_iris_remove,
.driver = {
@@ -183,7 +181,3 @@ static struct platform_driver wcnss_driver = {
.of_match_table = iris_of_match,
},
};
-
-module_platform_driver(wcnss_driver);
-MODULE_DESCRIPTION("Qualcomm Wireless Subsystem Iris driver");
-MODULE_LICENSE("GPL v2");