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SubjectRe: [PATCH RESEND v8 2/2] mtd: rawnand: meson: add support for Amlogic NAND flash controller
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Hi Martin,
On 2018/12/23 1:07, Martin Blumenstingl wrote:
> Hi Jianxin, Hi Liang,
>
> On Fri, Dec 21, 2018 at 12:45 PM Jianxin Pan <jianxin.pan@amlogic.com> wrote:
>>
>> From: Liang Yang <liang.yang@amlogic.com>
>>
>> Add initial support for the Amlogic NAND flash controller which found
>> in the Meson-GXBB/GXL/AXG SoCs.
>>
>> Signed-off-by: Liang Yang <liang.yang@amlogic.com>
>> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
>> Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
>> ---
>> drivers/mtd/nand/raw/Kconfig | 10 +
>> drivers/mtd/nand/raw/Makefile | 1 +
>> drivers/mtd/nand/raw/meson_nand.c | 1468 +++++++++++++++++++++++++++++++++++++
>> 3 files changed, 1479 insertions(+)
>> create mode 100644 drivers/mtd/nand/raw/meson_nand.c
>>
>> diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
>> index 1a55d3e..d05ff20 100644
>> --- a/drivers/mtd/nand/raw/Kconfig
>> +++ b/drivers/mtd/nand/raw/Kconfig
>> @@ -541,4 +541,14 @@ config MTD_NAND_TEGRA
>> is supported. Extra OOB bytes when using HW ECC are currently
>> not supported.
>>
>> +config MTD_NAND_MESON
>> + tristate "Support for NAND controller on Amlogic's Meson SoCs"
>> + depends on ARCH_MESON || COMPILE_TEST
>> + depends on COMMON_CLK_AMLOGIC
>> + select COMMON_CLK_REGMAP_MESON
> I believe that "depends on COMMON_CLK_AMLOGIC" and "select
> COMMON_CLK_REGMAP_MESON" are not necessary:
> the driver should build fine without them because it's only
> interfacing with the common clock framework.
> the common clock framework is enabled by ARCH_MESON and for the
> COMPILE_TEST case the common clock framework provides stub
> implementations inside the headers.
>
>> + select MFD_SYSCON
>> + help
>> + Enables support for NAND controller on Amlogic's Meson SoCs.
>> + This controller is found on Meson GXBB, GXL, AXG SoCs.
> you are explicitly mentioning GXBB here but you don't add a "GXBB" compatible.
> I suggest to shorten this sentence ("This controller is found on Meson
> SoCs.") because this driver can also support the 32-bit
> Meson8/Meson8b/Meson8m2 SoCs with minor adjustments.
>
we only have tested on Meson GXL and AXG platform, but it should support
GXBB and Meson8/Meson8b/Meson8m2 and the differences between these
controllers are only the base address of register and some SD_EMMC_CLOCK
control bits.

i think "This controller is found on Meson SoCs." is ok.

> Regards
> Martin
>
> .
>

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