Messages in this thread | | | Subject | Re: [PATCH 2/5] wcn36xx: Allow firmware name to be overridden by DT | From | Bryan O'Donoghue <> | Date | Mon, 15 Mar 2021 11:58:29 +0000 |
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On 12/03/2021 00:33, Bjorn Andersson 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> > --- > > This patch can be applied independently of the others, but relates to the > acceptance of the addition to the DT binding (in patch 1/5). So my suggestion > is that this one goes through the ath tree and the others through the Qualcomm > SoC tree. > > drivers/net/wireless/ath/wcn36xx/main.c | 7 +++++++ > drivers/net/wireless/ath/wcn36xx/smd.c | 4 ++-- > drivers/net/wireless/ath/wcn36xx/wcn36xx.h | 1 + > 3 files changed, 10 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c > index afb4877eaad8..87b5c0ff16c0 100644 > --- a/drivers/net/wireless/ath/wcn36xx/main.c > +++ b/drivers/net/wireless/ath/wcn36xx/main.c > @@ -1407,6 +1407,13 @@ 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 d0c3a1557e8d..7b928f988068 100644 > --- a/drivers/net/wireless/ath/wcn36xx/smd.c > +++ b/drivers/net/wireless/ath/wcn36xx/smd.c > @@ -514,10 +514,10 @@ 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 71fa9992b118..5977af2116e3 100644 > --- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h > +++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h > @@ -185,6 +185,7 @@ struct wcn36xx { > struct device *dev; > struct list_head vif_list; > > + const char *nv_file; > const struct firmware *nv; > > u8 fw_revision; >
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
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