[RFC PATCH 0/1] Categorize ARM dts directory

[Dmitry Baryshkov]

On 02/05/2023 22:40, Rob Herring wrote:
> On Tue, May 2, 2023 at 3:15 AM Arnd Bergmann <arnd at arndb.de> wrote:
>>
>> On Tue, Apr 25, 2023, at 17:57, Rob Herring wrote:
>>> On Tue, Apr 25, 2023 at 2:28 AM Geert Uytterhoeven <geert at linux-m68k.org> wrote:
>>>
>>>> Does your script also cater for .dts files not matching any pattern,
>>>> but including a .dtsi file that does match a pattern?
>>>
>>> I assume I built everything after moving, but maybe not...
>>>
>>> That's all just "details". First, we need agreement on a) moving
>>> things to subdirs and b) doing it 1-by-1 or all at once. So far we've
>>> been stuck on a) for being 'too much churn'.
>>
>> Sorry for missing most of the discussion last week. The script sounds
>> fine to me, the only reason I didn't want to do this in the past is that
>> we had the plan to move platforms out of the kernel tree to an external
>> repository and I wanted to do this platform at a time and also only move
>> each one once. I don't think that is going to happen anytime soon now,
>> so let's just do your script.
>>
>> Can you send me the script and/or a pull request of the resulting
>> tree based on my soc/dt branch? Everything is merged upstream,
>> and I think git-merge would handle the remaining merges with any
>> other changes in mainline.
> 
> I've dusted off my script and made a branch[1] with the result.
> There's just a couple of fixes needed after the script is run (see the
> top commit). The cross arch includes are all fixed up by the script.
> dtbs_install maintains a flat install. I compared the number of .dtbs
> before and after to check the script.
> 
> I think the only issue remaining is finalizing the mapping of
> platforms to subdirs. What I have currently is a mixture of SoC
> families and vendors. The most notable are all the Freescale/NXP
> platforms, pxa, socfpga, and stm32. It's not consistent with arm64
> either. Once that's finalized, I still need to go update MAINTAINERS.
> 
> Here's the current mapping:
> 
> vendor_map = {
>      'alphascale' : 'alphascale',
>      'alpine' : 'alpine',
>      'artpec' : 'axis',
>      'axm' : 'lsi',
>      'cx9' : 'cnxt',
>      'ecx' : 'calxeda',
>      'highbank' : 'calxeda',
>      'ep7' : 'cirrus',
>      'mxs': 'mxs',
>      'imx23': 'mxs',
>      'imx28': 'mxs',
>      'sun' : 'allwinner',
>      'imx': 'imx',
>      'e6' : 'imx',
>      'e7' : 'imx',
>      'mba6' : 'imx',
>      'ls': 'fsl',
>      'vf': 'fsl',
>      'qcom': 'qcom',
>      'am3' : 'ti',
>      'am4' : 'ti',
>      'am5' : 'ti',
>      'dra' : 'ti',
>      'keystone' : 'ti',
>      'omap' : 'ti',
>      'compulab' : 'ti',
>      'logicpd' : 'ti',
>      'elpida' : 'ti',
>      'motorola' : 'ti',
>      'twl' : 'ti',
>      'da' : 'ti',
>      'dm' : 'ti',
>      'nspire' : 'nspire',
>      'armada' : 'marvell',
>      'dove' : 'marvell',
>      'kirkwood' : 'marvell',
>      'orion' : 'marvell',
>      'mvebu' : 'marvell',
>      'mmp' : 'marvell',
>      'berlin' : 'berlin',
>      'pxa2' : 'pxa',
>      'pxa3' : 'pxa',
>      'pxa' : 'marvell',

I'd question if it makes sense to split the pxa line. Yes, it was sold 
by Intel to Marvell, but IIRC the devices still had some inheritance. 
So, if we have the 'pxa' subdir, I'd move Marvell PXAs to that dir too.

>      'arm-' : 'arm',
>      'integ' : 'arm',
>      'mps' : 'arm',
>      've' : 'arm',
>      'aspeed' : 'aspeed',
>      'ast2' : 'aspeed',
>      'facebook' : 'aspeed',
>      'ibm' : 'aspeed',
>      'openbmc' : 'aspeed',
>      'en7' : 'airoha',
>      'at91' : 'microchip',
>      'sama' : 'microchip',
>      'sam9' : 'microchip',
>      'usb_' : 'microchip',
>      'tny_' : 'microchip',
>      'mpa1600' : 'microchip',
>      'animeo_ip' : 'microchip',
>      'aks-cdu' : 'microchip',
>      'ethernut5' : 'microchip',
>      'evk-pro3' : 'microchip',
>      'pm9g45' : 'microchip',
>      'ge86' : 'microchip',
>      'bcm' : 'brcm',
>      'exynos' : 'samsung',
>      's3c' : 'samsung',
>      's5p' : 'samsung',
>      'gemini' : 'gemini',
>      'hi3' : 'hisilicon',
>      'hip' : 'hisilicon',
>      'hisi' : 'hisilicon',
>      'sd5' : 'hisilicon',
>      'hpe' : 'hpe',
>      'intel': 'intel',
>      'mt' : 'mediatek',
>      'meson' : 'meson',
>      'moxa' : 'moxa',
>      'mstar' : 'mstar',
>      'nuvo' : 'nuvoton',
>      'lpc' : 'lpc',
>      'lan96' : 'microchip',
>      'owl' : 'actions',
>      'ox8' : 'oxsemi',
>      'rda' : 'rda',
>      'rtd' : 'realtek',
>      'r7' : 'renesas',
>      'r8' : 'renesas',
>      'r9' : 'renesas',
>      'emev2' : 'renesas',
>      'sh73a' : 'renesas',
>      'gr-' : 'renesas',
>      'iwg' : 'renesas',
>      'rk' : 'rockchip',
>      'rv11' : 'rockchip',
>      'rockchip' : 'rockchip',
>      'socfpga' : 'socfpga',
>      'stm' : 'stm32',
>      'sti' : 'sti',
>      'st-pin' : 'sti',
>      'ste' : 'st-ericsson',
>      'spear' : 'spear',
>      'axp' : 'allwinner',
>      'tegra' : 'nvidia',
>      'milbeaut' : 'socionext',
>      'uniph' : 'socionext',
>      'vt8500' : 'vt8500',
>      'wm8' : 'vt8500',
>      'xen' : 'xen',
>      'zx' : 'zte',
>      'zynq' : 'xilinx',
> }
> 
> Rob
> 
> [1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git arm-dts-move-v2

-- 
With best wishes
Dmitry