| Message ID | 20210716074946.4093-1-amit.pundir@linaro.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | mailbox: qcom-ipcc: Enable loading QCOM_IPCC as a module | expand |
On Fri, Jul 16, 2021 at 01:19:46PM +0530, Amit Pundir wrote: > This patch enables the qcom_ipcc driver to be loaded as a > module. IPCC is fairly core to system, so as such it should > never be unloaded. It registers as a mailbox + irq controller > and the irq controller drivers in kernel are not supposed to > be unloaded as they don't have the visibility over the clients > consuming the irqs. Hence adding supress_bind_attrs to disable > bind/unbind via sysfs. > > Signed-off-by: Amit Pundir <amit.pundir@linaro.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Thanks, Mani > --- > drivers/mailbox/Kconfig | 2 +- > drivers/mailbox/qcom-ipcc.c | 1 + > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig > index b4b780ea2ac8..c9fc06c7e685 100644 > --- a/drivers/mailbox/Kconfig > +++ b/drivers/mailbox/Kconfig > @@ -264,7 +264,7 @@ config SPRD_MBOX > you want to build the Spreatrum mailbox controller driver. > > config QCOM_IPCC > - bool "Qualcomm Technologies, Inc. IPCC driver" > + tristate "Qualcomm Technologies, Inc. IPCC driver" > depends on ARCH_QCOM || COMPILE_TEST > help > Qualcomm Technologies, Inc. Inter-Processor Communication Controller > diff --git a/drivers/mailbox/qcom-ipcc.c b/drivers/mailbox/qcom-ipcc.c > index 584700cd1585..f1d4f4679b17 100644 > --- a/drivers/mailbox/qcom-ipcc.c > +++ b/drivers/mailbox/qcom-ipcc.c > @@ -277,6 +277,7 @@ static struct platform_driver qcom_ipcc_driver = { > .driver = { > .name = "qcom-ipcc", > .of_match_table = qcom_ipcc_of_match, > + .suppress_bind_attrs = true, > }, > }; > > -- > 2.25.1 >
diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig index b4b780ea2ac8..c9fc06c7e685 100644 --- a/drivers/mailbox/Kconfig +++ b/drivers/mailbox/Kconfig @@ -264,7 +264,7 @@ config SPRD_MBOX you want to build the Spreatrum mailbox controller driver. config QCOM_IPCC - bool "Qualcomm Technologies, Inc. IPCC driver" + tristate "Qualcomm Technologies, Inc. IPCC driver" depends on ARCH_QCOM || COMPILE_TEST help Qualcomm Technologies, Inc. Inter-Processor Communication Controller diff --git a/drivers/mailbox/qcom-ipcc.c b/drivers/mailbox/qcom-ipcc.c index 584700cd1585..f1d4f4679b17 100644 --- a/drivers/mailbox/qcom-ipcc.c +++ b/drivers/mailbox/qcom-ipcc.c @@ -277,6 +277,7 @@ static struct platform_driver qcom_ipcc_driver = { .driver = { .name = "qcom-ipcc", .of_match_table = qcom_ipcc_of_match, + .suppress_bind_attrs = true, }, };
This patch enables the qcom_ipcc driver to be loaded as a module. IPCC is fairly core to system, so as such it should never be unloaded. It registers as a mailbox + irq controller and the irq controller drivers in kernel are not supposed to be unloaded as they don't have the visibility over the clients consuming the irqs. Hence adding supress_bind_attrs to disable bind/unbind via sysfs. Signed-off-by: Amit Pundir <amit.pundir@linaro.org> --- drivers/mailbox/Kconfig | 2 +- drivers/mailbox/qcom-ipcc.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)