Re: [PATCH v14 4/9] soc: qcom: cpr: Move common functions to new file

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On 29.08.2023 17:15, Bjorn Andersson wrote:
> On Mon, Aug 28, 2023 at 01:42:16PM +0200, Konrad Dybcio wrote:
>> From: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx>
>>
> 
> It seems reasonable to update the subject prefix, now that things have
> moved to the genpd subsystem.
Right..

> 
>> In preparation for implementing a new driver that will be handling
>> CPRv3, CPRv4 and CPR-Hardened, format out common functions to a new
>> file.
>>
>> Update cpr_get_fuses in preparation for CPR3 implementation, change
>> parameters where necessary to not take cpr.c private data structures.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx>
>> [Konrad: rebase, apply review comments, improve msg, split]
>> Tested-by: Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
>> ---
>>  drivers/genpd/qcom/Makefile     |   2 +-
>>  drivers/genpd/qcom/cpr-common.c | 350 ++++++++++++++++++++++++++++++++++++
>>  drivers/genpd/qcom/cpr-common.h | 103 +++++++++++
>>  drivers/genpd/qcom/cpr.c        | 384 +++-------------------------------------
>>  4 files changed, 475 insertions(+), 364 deletions(-)
>>
>> diff --git a/drivers/genpd/qcom/Makefile b/drivers/genpd/qcom/Makefile
>> index 403dfc5af095..b28c8d9128c4 100644
>> --- a/drivers/genpd/qcom/Makefile
>> +++ b/drivers/genpd/qcom/Makefile
>> @@ -1,4 +1,4 @@
>>  # SPDX-License-Identifier: GPL-2.0
>> -obj-$(CONFIG_QCOM_CPR)		+= cpr.o
>> +obj-$(CONFIG_QCOM_CPR)		+= cpr-common.o cpr.o
> 
> Is there a reason for this to be split in two drivers? Would it make
> sense to rewrite this such that the result ends up as a single .ko?
"meh"

These are separate major revisions of the hardware that achieves the
same result but requires rather different handling.

Konrad
> 
> Then you shouldn't need to EXPORT_SYMBOL between the two parts of the
> same "driver".
> 
> Regards,
> Bjorn



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