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SubjectRe: [PATCH v6 6/8] interconnect: qcom: Add msm8916 interconnect provider driver
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Hi,

On 07/11/2018 01:34 AM, Evan Green wrote:
> On Mon, Jul 9, 2018 at 8:51 AM Georgi Djakov <georgi.djakov@linaro.org> wrote:
>>
>> Add driver for the Qualcomm interconnect buses found in msm8916 based
>> platforms.
>>
>> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
>> ---
>> drivers/interconnect/Kconfig | 5 +
>> drivers/interconnect/Makefile | 1 +
>> drivers/interconnect/qcom/Kconfig | 10 +
>> drivers/interconnect/qcom/Makefile | 2 +
>> drivers/interconnect/qcom/msm8916.c | 499 ++++++++++++++++++++++++++++
>> 5 files changed, 517 insertions(+)
>> create mode 100644 drivers/interconnect/qcom/msm8916.c
>>
>> diff --git a/drivers/interconnect/Kconfig b/drivers/interconnect/Kconfig
>> index a261c7d41deb..07a8276fa35a 100644
>> --- a/drivers/interconnect/Kconfig
>> +++ b/drivers/interconnect/Kconfig
>> @@ -8,3 +8,8 @@ menuconfig INTERCONNECT
>>
>> If unsure, say no.
>>
>> +if INTERCONNECT
>> +
>> +source "drivers/interconnect/qcom/Kconfig"
>> +
>> +endif
>> diff --git a/drivers/interconnect/Makefile b/drivers/interconnect/Makefile
>> index 97fca2e09d24..7944cbca0527 100644
>> --- a/drivers/interconnect/Makefile
>> +++ b/drivers/interconnect/Makefile
>> @@ -1,2 +1,3 @@
>> # SPDX-License-Identifier: GPL-2.0
>> obj-$(CONFIG_INTERCONNECT) += core.o
>> +obj-$(CONFIG_INTERCONNECT_QCOM) += qcom/
>> diff --git a/drivers/interconnect/qcom/Kconfig b/drivers/interconnect/qcom/Kconfig
>> index b0c2ff928d88..a87afdef1bf7 100644
>> --- a/drivers/interconnect/qcom/Kconfig
>> +++ b/drivers/interconnect/qcom/Kconfig
>> @@ -2,6 +2,8 @@ config INTERCONNECT_QCOM
>> bool "Qualcomm Network-on-Chip interconnect drivers"
>> depends on INTERCONNECT
>> depends on ARCH_QCOM || COMPILE_TEST
>> + help
>> + Support for Qualcomm's Network-on-Chip interconnect hardware.
>>
>> config INTERCONNECT_QCOM_SMD_RPM
>> tristate "Qualcomm SMD RPM interconnect driver"
>> @@ -9,3 +11,11 @@ config INTERCONNECT_QCOM_SMD_RPM
>> help
>> This is a driver for communicating interconnect related configuration
>> details with a remote processor (RPM) on Qualcomm platforms.
>> +
>> +config INTERCONNECT_QCOM_MSM8916
>> + tristate "Qualcomm MSM8916 interconnect driver"
>> + depends on INTERCONNECT_QCOM
>> + select INTERCONNECT_QCOM_SMD_RPM
>
> I'm not a kconfig expert, maybe someone else could chime in. I have
> this impression that folks don't like select. Is there a way to do
> this with depends instead? If I'm way off here, ignore me.

It could be done with depends, but i think that it would be easier for
the user to choose only the SoC driver, without having to look into what
dependencies need to be enabled for each. Here we are using select only
locally and if there are any dependencies on other subsystems (like the
QCOM_SMD_RPM), they should be put under the interconnect platform
driver. Of course i am open for other arguments and suggestions.

Thanks,
Georgi

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