linux-kernel - Re: [PATCH v4 3/5] spi: spi-qpic: Add qpic spi nand driver support

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Date: Sun, 7 Apr 2024 13:40:20 -0500
From: "Alex G." <mr.nuke.me@...il.com>
To: Md Sadre Alam <quic_mdalam@...cinc.com>, andersson@...nel.org,
 konrad.dybcio@...aro.org, broonie@...nel.org, robh@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 miquel.raynal@...tlin.com, richard@....at, vigneshr@...com,
 manivannan.sadhasivam@...aro.org, neil.armstrong@...aro.org,
 daniel@...rotopia.org, arnd@...db.de, chris.packham@...iedtelesis.co.nz,
 christophe.kerello@...s.st.com, linux-arm-msm@...r.kernel.org,
 linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org
Cc: quic_srichara@...cinc.com, quic_varada@...cinc.com
Subject: Re: [PATCH v4 3/5] spi: spi-qpic: Add qpic spi nand driver support



On 4/7/24 12:48, Alex G. wrote:
> On 3/8/24 03:17, Md Sadre Alam wrote:
>> Add qpic spi nand driver support. The spi nand
>> driver currently supported the below commands.
>>
>> -- RESET
>> -- READ ID
>> -- SET FEATURE
>> -- GET FEATURE
>> -- READ PAGE
>> -- WRITE PAGE
>> -- ERASE PAGE
>>
>> Co-developed-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
>> Signed-off-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
>> Co-developed-by: Varadarajan Narayanan <quic_varada@...cinc.com>
>> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
>> Signed-off-by: Md Sadre Alam <quic_mdalam@...cinc.com>
>> ---
> 
> For the entire series:
> 
> Tested-by: Alexandru Gagniuc <mr.nuke.me@...il.com>
> 
>> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
>> index bc7021da2fe9..63764e943d82 100644
>> --- a/drivers/spi/Kconfig
>> +++ b/drivers/spi/Kconfig
>> @@ -882,6 +882,14 @@ config SPI_QCOM_QSPI
>>       help
>>         QSPI(Quad SPI) driver for Qualcomm QSPI controller.
>> +config SPI_QPIC_SNAND
>> +    tristate "QPIC SNAND controller"

Also, don't tristate this. It can be set as CONFIG_QPIC_COMMON=m, which 
will cause the build to fail because you don't have a MODULE_LICENSE().

>> +    depends on ARCH_QCOM || COMPILE_TEST
> 
> Here, it needs to 'select QPIC_COMMON`. Otherwise it can run into 
> unresolved symbols:
> 
> : drivers/spi/spi-qpic-snand.o: in function `snandc_set_reg':
>   drivers/spi/spi-qpic-snand.c:56:(.text+0x484): undefined reference to 
> `qcom_offset_to_nandc_reg'
> ...
> 
>> +    help
>> +      QPIC_SNAND (QPIC SPI NAND) driver for Qualcomm QPIC controller.
>> +      QPIC controller supports both parallel nand and serial nand.
>> +      This config will enable serial nand driver for QPIC controller.
>> +
>>   config SPI_QUP
>>       tristate "Qualcomm SPI controller with QUP interface"
>>       depends on ARCH_QCOM || COMPILE_TEST
> 
> Alex
Alex