| Message ID | 20210824171225.686683-1-bjorn.andersson@linaro.org (mailing list archive) |
|---|---|
| State | Awaiting Upstream |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [RESEND] wcn36xx: Allow firmware name to be overridden by DT | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Not a local patch |
Bjorn Andersson <bjorn.andersson@linaro.org> writes: > The WLAN NV firmware blob differs between platforms, and possibly > devices, so add support in the wcn36xx 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). > > For some reason the parent (wcnss_ctrl) also needs to upload this blob, > so rather than specifying the same information in both nodes wcn36xx > reads the string from the parent's of_node. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> > Tested-by: Aníbal Limón <anibal.limon@linaro.org> [...] > --- a/drivers/net/wireless/ath/wcn36xx/main.c > +++ b/drivers/net/wireless/ath/wcn36xx/main.c > @@ -1500,6 +1500,13 @@ static int wcn36xx_probe(struct platform_device *pdev) > goto out_wq; > } > > + wcn->nv_file = WLAN_NV_FILE; > + ret = of_property_read_string(wcn->dev->parent->of_node, "firmware-name", &wcn->nv_file); > + if (ret < 0 && ret != -EINVAL) { > + wcn36xx_err("failed to read \"firmware-name\" property\n"); I included the value of ret to the error print to ease debugging. Modified patch is soon in the pending branch, please take a look.
Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > The WLAN NV firmware blob differs between platforms, and possibly > devices, so add support in the wcn36xx 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). > > For some reason the parent (wcnss_ctrl) also needs to upload this blob, > so rather than specifying the same information in both nodes wcn36xx > reads the string from the parent's of_node. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> > Tested-by: Aníbal Limón <anibal.limon@linaro.org> > Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Patch applied to ath-next branch of ath.git, thanks. b7f96d5c79cd wcn36xx: Allow firmware name to be overridden by DT
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index d202f2128df2..2ccf7a8924a0 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -1500,6 +1500,13 @@ static int wcn36xx_probe(struct platform_device *pdev) goto out_wq; } + wcn->nv_file = WLAN_NV_FILE; + ret = of_property_read_string(wcn->dev->parent->of_node, "firmware-name", &wcn->nv_file); + if (ret < 0 && ret != -EINVAL) { + wcn36xx_err("failed to read \"firmware-name\" property\n"); + goto out_wq; + } + wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw); if (IS_ERR(wcn->smd_channel)) { wcn36xx_err("failed to open WLAN_CTRL channel\n"); diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c index 0e3be17d8cea..57fa857b290b 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.c +++ b/drivers/net/wireless/ath/wcn36xx/smd.c @@ -504,10 +504,10 @@ int wcn36xx_smd_load_nv(struct wcn36xx *wcn) u16 fm_offset = 0; if (!wcn->nv) { - ret = request_firmware(&wcn->nv, WLAN_NV_FILE, wcn->dev); + ret = request_firmware(&wcn->nv, wcn->nv_file, wcn->dev); if (ret) { wcn36xx_err("Failed to load nv file %s: %d\n", - WLAN_NV_FILE, ret); + wcn->nv_file, ret); goto out; } } diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h index 6121d8a5641a..a69cce883563 100644 --- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h +++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h @@ -199,6 +199,7 @@ struct wcn36xx { struct device *dev; struct list_head vif_list; + const char *nv_file; const struct firmware *nv; u8 fw_revision;