Re: [PATCH v4 2/3] ath10k: Add device-tree quirk to skip host cap QMI requests

[Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>]

On 3/25/2026 11:27 PM, David Heidelberg via B4 Relay wrote:
> From: Amit Pundir <amit.pundir@linaro.org>
> 
> Some firmware versions do not support the host capability QMI request.
> Since this request occurs before firmware-N.bin and board-M.bin are
> loaded, the quirk cannot be expressed in the firmware itself.
> 
> The root cause is unclear, but there appears to be a generation of
> firmware that lacks host capability support.
> 
> Without this quirk, ath10k_qmi_host_cap_send_sync() returns
> QMI_ERR_MALFORMED_MSG_V01 before loading the firmware. This error is not
> fatal - Wi-Fi services still come up successfully if the request is simply
> skipped.
> 
> Add a device-tree quirk to skip the host capability QMI request on devices
> whose firmware does not support it.
> 
> For example, firmware build
> "QC_IMAGE_VERSION_STRING=WLAN.HL.2.0.c3-00257-QCAHLSWMTPLZ-1"
> on Xiaomi Poco F1 phone requires this quirk.
> 
> Suggested-by: Bjorn Andersson <andersson@kernel.org>
> Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
> Signed-off-by: David Heidelberg <david@ixit.cz>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>