Different Qualcomm platforms using WCN3990 WiFI chip use SoC-specific
firmware versions with different features. For example firmware for
SDM845 doesn't use single-chan-info-per-channel feature, while firmware
for QRB2210 / QRB4210 requires that feature. Allow board DT files to
override the subdir of the fw dir used to lookup the firmware-N.bin file
decribing corresponding WiFi firmware.
For example:
- ath10k/WCN3990/hw1.0/wlanmdsp.mbn,
ath10k/WCN3990/hw1.0/firmware-5.bin: main firmware files, used by default
- ath10k/WCN3990/hw1.0/qcm2290/wlanmdsp.mbn,
ath10k/WCN3990/hw1.0/qcm2290/firmware-5.bin: SoC specific firmware
with different signature and feature bits
Note, while board files lookup uses the same function and thus it is
possible to provide board-specific board-2.bin files, this is not
required in 99% of cases as board-2.bin already contains a way to
provide board-specific data with finer granularity than DT overrides.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/core.c | 11 ++++++++++-
drivers/net/wireless/ath/ath10k/core.h | 2 ++
drivers/net/wireless/ath/ath10k/snoc.c | 3 +++
3 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 0032f8aa892f..ef7ce8b3f8fb 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -942,11 +942,20 @@ static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
if (dir == NULL)
dir = ".";
+ if (ar->board_name) {
+ snprintf(filename, sizeof(filename), "%s/%s/%s",
+ dir, ar->board_name, file);
+ ret = firmware_request_nowarn(&fw, filename, ar->dev);
+ ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot fw request '%s': %d\n",
+ filename, ret);
+ if (!ret)
+ return fw;
+ }
+
snprintf(filename, sizeof(filename), "%s/%s", dir, file);
ret = firmware_request_nowarn(&fw, filename, ar->dev);
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot fw request '%s': %d\n",
filename, ret);
-
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index c110d15528bd..3595c8abce02 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -1081,6 +1081,8 @@ struct ath10k {
*/
const struct ath10k_fw_components *running_fw;
+ const char *board_name;
+
const struct firmware *pre_cal_file;
const struct firmware *cal_file;
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index a1db5a973780..5de911d0255e 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1337,6 +1337,9 @@ static void ath10k_snoc_quirks_init(struct ath10k *ar)
struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
struct device *dev = &ar_snoc->dev->dev;
+ /* ignore errors, keep NULL if there is no property */
+ of_property_read_string(dev->of_node, "firmware-name", &ar->board_name);
+
if (of_property_read_bool(dev->of_node, "qcom,snoc-host-cap-8bit-quirk"))
set_bit(ATH10K_SNOC_FLAG_8BIT_HOST_CAP_QUIRK, &ar_snoc->flags);
}
--
2.39.2
