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SubjectRe: [PATCH] arm64: sunxi: Enable REGMAP_MMIO to fix linker error
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On 14/11/2018 14:51, Maxime Ripard wrote:
> Hi John,
>
> On Wed, Nov 14, 2018 at 01:04:25AM +0800, John Garry wrote:
>> The following linker failure can be seen for a certain heavily reduced
>> defconfig:
>> drivers/soc/sunxi/sunxi_sram.o: In function `sunxi_sram_probe':
>> drivers/soc/sunxi/sunxi_sram.c:353: undefined reference to `__devm_regmap_init_mmio_clk'
>> drivers/soc/sunxi/sunxi_sram.c:353:(.text+0x3c4): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__devm_regmap_init_mmio_clk'
>>
>> It would seem that the sunxi sram driver implicitly depended on config
>> REGMAP_MMIO.
>>
>> To solve, select config REGMAP_MMIO for ARCH_SUNXI. This seems a better
>> option than selecting from the respective driver config as this just
>> defaults to ARCH_SUNXI.
>>
>> Fixes: 5828729bebbb ("soc: sunxi: export a regmap for EMAC clock reg on A64")
>> Signed-off-by: John Garry <john.garry@huawei.com>
>>
>> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
>> index 51bc479..c8a6ad3 100644
>> --- a/arch/arm64/Kconfig.platforms
>> +++ b/arch/arm64/Kconfig.platforms
>> @@ -12,6 +12,7 @@ config ARCH_SUNXI
>> select ARCH_HAS_RESET_CONTROLLER
>> select GENERIC_IRQ_CHIP
>> select PINCTRL
>> + select REGMAP_MMIO
>> select RESET_CONTROLLER
>> help
>> This enables support for Allwinner sunxi based SoCs like the A64.
>
> The sunxi_sram driver has a Kconfig symbol of its own now, it would
> make more sense to add that select there, especially since we can also
> compile it for arm.

Fine, so I'll leave this to you to fix if you don't mind.

Thanks,
John

>
> Maxime
>


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