Re: [PATCH 0/4] Fix omap-iommu bitrot

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On Mon, 28 Oct 2024 at 14:46, H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> wrote:
>
> Hi Robin,
>
> > Am 28.10.2024 um 18:58 schrieb Robin Murphy <robin.murphy@xxxxxxx>:
> >
> > Hi all,
> >
> > It seems omap-iommu hasn't had enough mainline users to avoid bitrotting
> > through the more recent evolution of the IOMMU API internals. These
> > patches attempt to bring it and its consumers sufficiently up-to-date
> > to work again, in a manner that's hopefully backportable. This is
> > largely all written by inspection, but I have managed to lightly boot
> > test patch #3 on an OMAP4 Pandaboard to confirm iommu_probe_device()
> > working again.
> >
> > This supersedes my previous patch[1]. Patches #1 and #2 are functionally
> > independent, and can be applied directly to their respective trees if
> > preferred.
>
> I can confirm that this series works on omap3 with v6.12-rc5 and
> Camera is back to the GTA04.
>
> So you can add:
> Tested-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
>

Many thanks for taking the time to test this, it is really appreciated.

> BR and thanks,
> Nikolaus
>
> root@letux:~# dmesg|fgrep iommu
> [    0.522613] iommu: Default domain type: Translated
> [    0.522644] iommu: DMA domain TLB invalidation policy: strict mode
> [    0.525177] omap-iommu 480bd400.mmu: 480bd400.mmu registered
> [   10.752563] omap3isp 480bc000.isp: Adding to iommu group 0
> [   10.811218] omap-iommu 480bd400.mmu: 480bd400.mmu: version 1.1
> [   11.039489] omap-iommu 480bd400.mmu: 480bd400.mmu: version 1.1
> root@letux:~# dmesg|fgrep .isp
> [   10.752563] omap3isp 480bc000.isp: Adding to iommu group 0
> [   10.841522] omap3isp 480bc000.isp: supply vdd-csiphy1 not found, using dummy regulator
> [   10.948577] omap3isp 480bc000.isp: supply vdd-csiphy2 not found, using dummy regulator
> [   10.990814] omap3isp 480bc000.isp: Revision 15.0 found
> [   11.089324] omap3isp 480bc000.isp: hist: using DMA channel dma0chan15
> [   11.115905] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP CCP2 was not initialized!
> [   11.168792] omap3isp 480bc000.isp: isp_xclk_set_rate: cam_xclka set to 24685714 Hz (div 7)
> [   11.220062] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP CSI2a was not initialized!
> [   11.291748] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP CCDC was not initialized!
> [   11.362152] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP preview was not initialized!
> [   11.404266] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP resizer was not initialized!
> [   11.485687] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP AEWB was not initialized!
> [   11.520874] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP AF was not initialized!
> [   11.574981] omap3isp 480bc000.isp: Entity type for entity OMAP3 ISP histogram was not initialized!
> [   11.594268] omap3isp 480bc000.isp: parsing parallel interface
> [  106.102905] omap3isp 480bc000.isp: -------------CCDC Register dump-------------
> [  106.110595] omap3isp 480bc000.isp: ###CCDC PCR=0x00000000
> [  106.116973] omap3isp 480bc000.isp: ###CCDC SYN_MODE=0x00031704
> [  106.123657] omap3isp 480bc000.isp: ###CCDC HD_VD_WID=0x00000000
> [  106.129974] omap3isp 480bc000.isp: ###CCDC PIX_LINES=0x00000000
> [  106.136810] omap3isp 480bc000.isp: ###CCDC HORZ_INFO=0x000004ff
> [  106.143615] omap3isp 480bc000.isp: ###CCDC VERT_START=0x00000000
> [  106.149932] omap3isp 480bc000.isp: ###CCDC VERT_LINES=0x000003ff
> [  106.156799] omap3isp 480bc000.isp: ###CCDC CULLING=0xffff00ff
> [  106.163299] omap3isp 480bc000.isp: ###CCDC HSIZE_OFF=0x00000a00
> [  106.169616] omap3isp 480bc000.isp: ###CCDC SDOFST=0x00000000
> [  106.176086] omap3isp 480bc000.isp: ###CCDC SDR_ADDR=0x40000000
> [  106.182708] omap3isp 480bc000.isp: ###CCDC CLAMP=0x00000010
> [  106.188598] omap3isp 480bc000.isp: ###CCDC DCSUB=0x00000000
> [  106.195068] omap3isp 480bc000.isp: ###CCDC COLPTN=0xbb11bb11
> [  106.201507] omap3isp 480bc000.isp: ###CCDC BLKCMP=0x00000000
> [  106.207550] omap3isp 480bc000.isp: ###CCDC FPC=0x00000000
> [  106.213684] omap3isp 480bc000.isp: ###CCDC FPC_ADDR=0x00000000
> [  106.219909] omap3isp 480bc000.isp: ###CCDC VDINT=0x03fe02aa
> [  106.226409] omap3isp 480bc000.isp: ###CCDC ALAW=0x00000006
> [  106.232696] omap3isp 480bc000.isp: ###CCDC REC656IF=0x00000000
> [  106.238830] omap3isp 480bc000.isp: ###CCDC CFG=0x00008800
> [  106.244964] omap3isp 480bc000.isp: ###CCDC FMTCFG=0x00000000
> [  106.251434] omap3isp 480bc000.isp: ###CCDC FMT_HORZ=0x00000000
> [  106.257568] omap3isp 480bc000.isp: ###CCDC FMT_VERT=0x00000000
> [  106.264251] omap3isp 480bc000.isp: ###CCDC PRGEVEN0=0x00000000
> [  106.271606] omap3isp 480bc000.isp: ###CCDC PRGEVEN1=0x00000000
> [  106.285400] omap3isp 480bc000.isp: ###CCDC PRGODD0=0x00000000
> [  106.301147] omap3isp 480bc000.isp: ###CCDC PRGODD1=0x00000000
> [  106.307220] omap3isp 480bc000.isp: ###CCDC VP_OUT=0x00000000
> [  106.326019] omap3isp 480bc000.isp: ###CCDC LSC_CONFIG=0x00006600
> [  106.340087] omap3isp 480bc000.isp: ###CCDC LSC_INITIAL=0x00000000
> [  106.358001] omap3isp 480bc000.isp: ###CCDC LSC_TABLE_BASE=0x00000000
> [  106.372985] omap3isp 480bc000.isp: ###CCDC LSC_TABLE_OFFSET=0x00000000
> [  106.379882] omap3isp 480bc000.isp: --------------------------------------------
> [  118.617980] omap3isp 480bc000.isp: OMAP3 ISP AEWB: user wants to disable module.
> [  118.626068] omap3isp 480bc000.isp: OMAP3 ISP AEWB: module is being disabled
> [  118.633392] omap3isp 480bc000.isp: OMAP3 ISP AF: user wants to disable module.
> [  118.641937] omap3isp 480bc000.isp: OMAP3 ISP AF: module is being disabled
> [  118.649627] omap3isp 480bc000.isp: OMAP3 ISP histogram: user wants to disable module.
> [  118.658508] omap3isp 480bc000.isp: OMAP3 ISP histogram: module is being disabled
> root@letux:~#
>
>
>




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