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Tue, 30 Jan 2024 08:38:41 -0800 (PST) From: Dmitry Baryshkov Date: Tue, 30 Jan 2024 18:38:38 +0200 Subject: [PATCH RFC 2/4] wifi: ath10k: support board-specific firmware overrides Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240130-wcn3990-firmware-path-v1-2-826b93202964@linaro.org> References: <20240130-wcn3990-firmware-path-v1-0-826b93202964@linaro.org> In-Reply-To: <20240130-wcn3990-firmware-path-v1-0-826b93202964@linaro.org> To: Kalle Valo , Jeff Johnson , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=2717; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=rdxq3kzQEhLOfWHhqAgfGJbUetMIKn7+i69RkVlVAY4=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBluSYO+AhHsWAY9CBHp4h8pfrlmKQrGQDoTWgzO QB1J6V5cbKJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZbkmDgAKCRCLPIo+Aiko 1SAKCACXFs4ArwGJ7NsvblRePaE8Zh9zsKGSckmQEyhwo9D2fctcaKPBJ/kncYSQcSn3zxDqwv7 oTGFJBAERwNbVCrmLxPjCjKhgXJImyf6F7ltH95KpvNIq80qL4eu5F4MBQITmBHnhmYWMQ9qXfA fH7BaL0QXuzCbXIKZGv+zEpt0ZYEd76FLxQFJgIaQe7m8RUGsmE6UqaXtbK/Bn99ANd9/UfzqFk YKjsci4FENLlKPyheqgK5OSvyLTDdi++NG+llGtL6hW7k6dgEId36n5JxYet+IfbSGr0Q5iSOK1 lCFTbvbpHKTdJdmTxbFFR9HybaryJp9UtERAW6yz/p2cN7Ib X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A 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. Signed-off-by: Dmitry Baryshkov --- 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..747de30e06ca 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, default to empty string */ + 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); }