From 82ec0c290d1a731a2b33b8a713c5bc96b03fb2d3 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Thu, 11 Mar 2021 16:33:17 -0800 Subject: [PATCH] soc: qcom: wcnss_ctrl: Allow reading firmware-name from DT MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The WLAN NV firmware blob differs between platforms, and possibly devices, so add support in the wcnss_ctrl driver for reading the path of this file from DT in order to allow these files to live in a generic file system (or linux-firmware). The new property is optional and the code falls back to the old filename if the property isn't specified. Tested-by: Bryan O'Donoghue Tested-by: Aníbal Limón Link: https://lore.kernel.org/r/20210312003318.3273536-5-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson --- drivers/soc/qcom/wcnss_ctrl.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c index 358526b9de06b..2a06d631e415a 100644 --- a/drivers/soc/qcom/wcnss_ctrl.c +++ b/drivers/soc/qcom/wcnss_ctrl.c @@ -200,6 +200,7 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) struct wcnss_download_nv_req *req; const struct firmware *fw; struct device *dev = wcnss->dev; + const char *nvbin = NVBIN_FILE; const void *data; ssize_t left; int ret; @@ -208,10 +209,13 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) if (!req) return -ENOMEM; - ret = request_firmware(&fw, NVBIN_FILE, dev); + ret = of_property_read_string(dev->of_node, "firmware-name", &nvbin); + if (ret < 0 && ret != -EINVAL) + goto free_req; + + ret = request_firmware(&fw, nvbin, dev); if (ret < 0) { - dev_err(dev, "Failed to load nv file %s: %d\n", - NVBIN_FILE, ret); + dev_err(dev, "Failed to load nv file %s: %d\n", nvbin, ret); goto free_req; }