Re: [PATCH 2/2] arm64: dts: qcom: sdm850-huawei-matebook-e-2019: Correct ipa_fw_mem for the driver to load successfully
From: Dmitry Baryshkov
Date: Tue Dec 09 2025 - 18:08:58 EST
On Mon, Dec 08, 2025 at 11:15:11AM +0800, Jingzhou Zhu wrote:
> The ipa driver refuses to load with the old ipa_fw_mem in newer kernels.
> Shrinking its size to 0x5a000 fixes the problem.
>
> Fixes: aab69794b55d ("arm64: dts: qcom: Add support for Huawei MateBook E 2019")
>
> Signed-off-by: Jingzhou Zhu <newwheatzjz@xxxxxxxxxxxx>
There should be no empty lines between tags.
> ---
> arch/arm64/boot/dts/qcom/sdm850-huawei-matebook-e-2019.dts | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm850-huawei-matebook-e-2019.dts b/arch/arm64/boot/dts/qcom/sdm850-huawei-matebook-e-2019.dts
> index a5f025ae7dbe..f04865381870 100644
> --- a/arch/arm64/boot/dts/qcom/sdm850-huawei-matebook-e-2019.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm850-huawei-matebook-e-2019.dts
> @@ -144,12 +144,12 @@ wlan_msa_mem: wlan-msa@8c400000 {
> };
>
> ipa_fw_mem: ipa-fw@8df00000 {
> - reg = <0 0x8df00000 0 0x100000>;
> + reg = <0 0x8df00000 0 0x5a000>;
> no-map;
> };
>
> - gpu_mem: gpu@97900000 {
> - reg = <0 0x97900000 0 0x5000>;
> + gpu_mem: gpu@8df5a000 {
Why are you adjusting gpu_mem?
> + reg = <0 0x8df5a000 0 0x5000>;
> no-map;
> };
>
> --
> 2.47.3
>
--
With best wishes
Dmitry