On Fri, 5 Apr 2024 at 15:41, Kalle Valo <kvalo@xxxxxxxxxx> wrote: > > Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> writes: > > > On Fri, 5 Apr 2024 at 15:01, Kalle Valo <kvalo@xxxxxxxxxx> wrote: > > > >> > >> Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> writes: > >> > >> > On Fri, 8 Mar 2024 at 17:19, Kalle Valo <kvalo@xxxxxxxxxx> wrote: > >> >> > >> >> Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> writes: > >> >> > >> >> >> To be on the safe side using 'qcom-rb1' makes sense but on the other > >> >> >> hand that means we need to update linux-firmware (basically add a new > >> >> >> symlink) everytime a new product is added. But are there going to be > >> >> >> that many new ath10k based products? > >> >> >> > >> >> >> Using 'qcm2290' is easier because for a new product then there only > >> >> >> needs to be a change in DTS and no need to change anything > >> >> >> linux-firmware. But here the risk is that if there's actually two > >> >> >> different ath10k firmware branches for 'qcm2290'. If that ever happens > >> >> >> (I hope not) I guess we could solve that by adding new 'qcm2290-foo' > >> >> >> directory? > >> >> >> > >> >> >> But I don't really know, thoughts? > >> >> > > >> >> > After some thought, I'd suggest to follow approach taken by the rest > >> >> > of qcom firmware: > >> >> > >> >> Can you provide pointers to those cases? > >> > > >> > https://gitlab.com/kernel-firmware/linux-firmware/-/tree/main/qcom/sc8280xp/LENOVO/21BX > >> > > >> >> > >> >> > put a default (accepted by non-secured hardware) firmware to SoC dir > >> >> > and then put a vendor-specific firmware into subdir. If any of such > >> >> > vendors appear, we might even implement structural fallback: first > >> >> > look into sdm845/Google/blueline, then in sdm845/Google, sdm845/ and > >> >> > finally just under hw1.0. > >> >> > >> >> Honestly that looks quite compilicated compared to having just one > >> >> sub-directory. How will ath10k find the directory names (or I vendor and > >> >> model names) like 'Google' or 'blueline' in this example? > >> > > >> > I was thinking about the firmware-name = "sdm845/Google/blueline". But > >> > this can be really simpler, firmware-name = "blueline" or > >> > "sdm845/blueline" with no need for fallbacks. > >> > >> I have been also thinking about this and I would prefer not to have the > >> fallbacks. But good if you agree with that. > >> > >> IMHO just "sdm845-blueline" would be the most simple. I don't see the > >> point of having a directory structure when there are not that many > >> directories really. But this is just cosmetics. > > > > It is "not many directories" if we are thinking about the > > linux-firmware or open devices. But once embedded distros start > > picking this up for the supported devices, this can quickly become a > > nuisance. > > Ok. Just out of curiosity, any ideas how many devices/products are there > with wcn3990 who want to use ath10k? Just for the DT in mainline I can count about 30 devices that have ath10k WiFi node: arch/arm64/boot/dts/qcom/msm8998-clamshell.dtsi:&wifi { arch/arm64/boot/dts/qcom/msm8998-fxtec-pro1.dts:&wifi { arch/arm64/boot/dts/qcom/msm8998-mtp.dts:&wifi { arch/arm64/boot/dts/qcom/msm8998-oneplus-common.dtsi:&wifi { arch/arm64/boot/dts/qcom/msm8998-xiaomi-sagit.dts:&wifi { arch/arm64/boot/dts/qcom/qcs404-evb.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts:&wifi { arch/arm64/boot/dts/qcom/sc7180-idp.dts:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor-kingoftown.dts:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor-pazquel360.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc7180-trogdor-wormdingler.dtsi:&wifi { arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts:&wifi { arch/arm64/boot/dts/qcom/sc8180x-primus.dts:&wifi { arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi:&wifi { arch/arm64/boot/dts/qcom/sdm845-db845c.dts:&wifi { arch/arm64/boot/dts/qcom/sdm845-mtp.dts:&wifi { arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi:&wifi { arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts:&wifi { arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts:&wifi { arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi:&wifi { arch/arm64/boot/dts/qcom/sdm845-xiaomi-polaris.dts:&wifi { arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts:&wifi { arch/arm64/boot/dts/qcom/sm8150-microsoft-surface-duo.dts:&wifi { arch/arm64/boot/dts/qcom/sm8150-mtp.dts:&wifi { arch/arm64/boot/dts/qcom/qrb2210-rb1.dts:&wifi { arch/arm64/boot/dts/qcom/qrb4210-rb2.dts:&wifi { The list doesn't include e.g. PIxel 2-3-4-5 or some other phones which are still on their way for the proper mainline support. -- With best wishes Dmitry
