Re: [PATCH 12/12] RISC-V: defconfigs: Remove redundant K210 DT source

Palmer Dabbelt
2022-01-06T18:02:00Z

On Sun, 21 Nov 2021 15:41:18 PST (-0800), Damien.LeMoal@wdc.com wrote:
>> On 2021/11/20 1:45, Palmer Dabbelt wrote:
>> From: Palmer Dabbelt <palmer@rivosinc.com>
>>
>> The "k210_generic" DT has been the default in Kconfig since 7d96729a9e7
>> ("riscv: Update Canaan Kendryte K210 device tree"), so drop it from the
>> defconfigs to avoid diff with savedefconfig.
>>
>> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
>> ---
>> arch/riscv/configs/nommu_k210_defconfig | 1 -
>> arch/riscv/configs/nommu_k210_sdcard_defconfig | 1 -
>> 2 files changed, 2 deletions(-)
>>
>> diff --git a/arch/riscv/configs/nommu_k210_defconfig b/arch/riscv/configs/nommu_k210_defconfig
>> index 89ab76349ea8..e8ceab678e8b 100644
>> --- a/arch/riscv/configs/nommu_k210_defconfig
>> +++ b/arch/riscv/configs/nommu_k210_defconfig
>> @@ -29,7 +29,6 @@ CONFIG_EMBEDDED=y
>> CONFIG_SLOB=y
>> # CONFIG_MMU is not set
>> CONFIG_SOC_CANAAN=y
>> -CONFIG_SOC_CANAAN_K210_DTB_SOURCE="k210_generic"
>> CONFIG_MAXPHYSMEM_2GB=y
>> CONFIG_SMP=y
>> CONFIG_NR_CPUS=2
>> diff --git a/arch/riscv/configs/nommu_k210_sdcard_defconfig b/arch/riscv/configs/nommu_k210_sdcard_defconfig
>> index 84b87f8bfc8f..46aa3879f19c 100644
>> --- a/arch/riscv/configs/nommu_k210_sdcard_defconfig
>> +++ b/arch/riscv/configs/nommu_k210_sdcard_defconfig
>> @@ -21,7 +21,6 @@ CONFIG_EMBEDDED=y
>> CONFIG_SLOB=y
>> # CONFIG_MMU is not set
>> CONFIG_SOC_CANAAN=y
>> -CONFIG_SOC_CANAAN_K210_DTB_SOURCE="k210_generic"
>> CONFIG_MAXPHYSMEM_2GB=y
>> CONFIG_SMP=y
>> CONFIG_NR_CPUS=2
>>
>
> Then maybe also delete the arch/riscv/boot/dts/canaan/k210_generic.dts file too
> ? It is redundant now that it is not being referenced...

IIUC that's the opposite of what's going on here. Looks like I somehow
managed to get the commit wrong, which I've fixed, it's 67d96729a9e7
("riscv: Update Canaan Kendryte K210 device tree") That contains

diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
index 6402746c68f3..7efcece8896c 100644
--- a/arch/riscv/Kconfig.socs
+++ b/arch/riscv/Kconfig.socs
@@ -51,7 +51,7 @@ config SOC_CANAAN_K210_DTB_SOURCE
string "Source file for the Canaan Kendryte K210 builtin DTB"
depends on SOC_CANAAN
depends on SOC_CANAAN_K210_DTB_BUILTIN
- default "k210"
+ default "k210_generic"
help
Base name (without suffix, relative to arch/riscv/boot/dts/canaan)
for the DTS file that will be used to produce the DTB linked into the

which makes the defconfig entry redundant but still references the DT
file.