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wifi: ath12k: support usercase-specific firmware overrides

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Introduce 'firmware-name' property to allow end-users and/or integrators to
decide which usecase-specific firmware to run on the WCN7850 platform. This
is necessary due to resource limitations such as memory capacity and CPU
capability, or performance and power optimization for different application
scenarios.

Currently, there are two firmwares, both files can be executed
interchangeably.
For example:

- ath12k/WCN7850/hw2.0/amss.bin,
  ath12k/WCN7850/hw2.0/m3.bin
  ath12k/WCN7850/hw2.0/board-2.bin

- ath12k/WCN7850/hw2.0/ncm825/amss.bin,
  ath12k/WCN7850/hw2.0/ncm825/m3.bin
  ath12k/WCN7850/hw2.0/board-2.bin

The former is the default firmware, suitable for most WiFi 7 STA functions.
The latter adds support for commercial-quality SAP and optimizes power
consumption for IoT applications. And both use the same BDF/regdb data
within the main board-2.bin.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Miaoqing Pan <quic_miaoqing@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250424005703.2479907-3-quic_miaoqing@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Miaoqing Pan 2025-04-24 08:57:03 +08:00 committed by Jeff Johnson
parent 607d6e49da
commit a9610bc482
1 changed files with 11 additions and 2 deletions
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13
drivers/net/wireless/ath/ath12k/core.h
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@ -17,6 +17,7 @@
#include <linux/of_reserved_mem.h>
#include <linux/panic_notifier.h>
#include <linux/average.h>
#include <linux/of.h>
#include "qmi.h"
#include "htc.h"
#include "wmi.h"
@ -1379,8 +1380,16 @@ static inline void ath12k_core_create_firmware_path(struct ath12k_base *ab,
const char *filename,
void *buf, size_t buf_len)
{
snprintf(buf, buf_len, "%s/%s/%s", ATH12K_FW_DIR,
ab->hw_params->fw.dir, filename);
const char *fw_name = NULL;
of_property_read_string(ab->dev->of_node, "firmware-name", &fw_name);
if (fw_name && strncmp(filename, "board", 5))
snprintf(buf, buf_len, "%s/%s/%s/%s", ATH12K_FW_DIR,
ab->hw_params->fw.dir, fw_name, filename);
else
snprintf(buf, buf_len, "%s/%s/%s", ATH12K_FW_DIR,
ab->hw_params->fw.dir, filename);
}
static inline const char *ath12k_bus_str(enum ath12k_bus bus)