2018-03-29 06:58:28

by Ramon Fried

[permalink] [raw]
Subject: [PATCH v2] wcn36xx: Disable 5GHz for wcn3610

wcn3610 can only operate on 2.4GHz band due to RF limitation.
If wcn36xx digital block is associated with an external IRIS
RF module, retrieve the id and disable 5GHz band in case of
wcn3610 id.

Signed-off-by: Ramon Fried <[email protected]>
---
v2: fixed wrong assignment, which is logically introduces the
same behaviour, but for correctness.

drivers/net/wireless/ath/wcn36xx/main.c | 4 +++-
drivers/net/wireless/ath/wcn36xx/wcn36xx.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index ab5be6d2c691..833531a68c95 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -1146,7 +1146,7 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
BIT(NL80211_IFTYPE_MESH_POINT);

wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
- if (wcn->rf_id != RF_IRIS_WCN3620)
+ if (wcn->rf_id != RF_IRIS_WCN3610 && wcn->rf_id != RF_IRIS_WCN3620)
wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;

wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
@@ -1248,6 +1248,8 @@ static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
if (iris_node) {
if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
wcn->rf_id = RF_IRIS_WCN3620;
+ else if (of_device_is_compatible(iris_node, "qcom,wcn3610"))
+ wcn->rf_id = RF_IRIS_WCN3610;
of_node_put(iris_node);
}

diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
index 81017e6703b4..bc4d1a10d90e 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -95,6 +95,7 @@ enum wcn36xx_ampdu_state {
#define WCN36XX_MAX_POWER(__wcn) (__wcn->hw->conf.chandef.chan->max_power)

#define RF_UNKNOWN 0x0000
+#define RF_IRIS_WCN3610 0x3610
#define RF_IRIS_WCN3620 0x3620

static inline void buff_to_be(u32 *buf, size_t len)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


2018-03-29 07:15:31

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH v2] wcn36xx: Disable 5GHz for wcn3610

(adding devicetree list)

Ramon Fried <[email protected]> writes:

> wcn3610 can only operate on 2.4GHz band due to RF limitation.
> If wcn36xx digital block is associated with an external IRIS
> RF module, retrieve the id and disable 5GHz band in case of
> wcn3610 id.
>
> Signed-off-by: Ramon Fried <[email protected]>
> ---
> v2: fixed wrong assignment, which is logically introduces the
> same behaviour, but for correctness.
>
> drivers/net/wireless/ath/wcn36xx/main.c | 4 +++-
> drivers/net/wireless/ath/wcn36xx/wcn36xx.h | 1 +
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
> index ab5be6d2c691..833531a68c95 100644
> --- a/drivers/net/wireless/ath/wcn36xx/main.c
> +++ b/drivers/net/wireless/ath/wcn36xx/main.c
> @@ -1146,7 +1146,7 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
> BIT(NL80211_IFTYPE_MESH_POINT);
>
> wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
> - if (wcn->rf_id != RF_IRIS_WCN3620)
> + if (wcn->rf_id != RF_IRIS_WCN3610 && wcn->rf_id != RF_IRIS_WCN3620)
> wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
>
> wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
> @@ -1248,6 +1248,8 @@ static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
> if (iris_node) {
> if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
> wcn->rf_id = RF_IRIS_WCN3620;
> + else if (of_device_is_compatible(iris_node, "qcom,wcn3610"))
> + wcn->rf_id = RF_IRIS_WCN3610;
> of_node_put(iris_node);
> }

Should we document qcom,wcn3610 just like wcn3620 is:

Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt: "qcom,wcn3620",

--
Kalle Valo

2018-03-29 07:33:00

by Ramon Fried

[permalink] [raw]
Subject: Re: [PATCH v2] wcn36xx: Disable 5GHz for wcn3610

(adding Bjorn Andersson)


On 3/29/2018 10:15 AM, Kalle Valo wrote:
> (adding devicetree list)
>
> Ramon Fried <[email protected]> writes:
>
>> wcn3610 can only operate on 2.4GHz band due to RF limitation.
>> If wcn36xx digital block is associated with an external IRIS
>> RF module, retrieve the id and disable 5GHz band in case of
>> wcn3610 id.
>>
>> Signed-off-by: Ramon Fried <[email protected]>
>> ---
>> v2: fixed wrong assignment, which is logically introduces the
>> same behaviour, but for correctness.
>>
>> drivers/net/wireless/ath/wcn36xx/main.c | 4 +++-
>> drivers/net/wireless/ath/wcn36xx/wcn36xx.h | 1 +
>> 2 files changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
>> index ab5be6d2c691..833531a68c95 100644
>> --- a/drivers/net/wireless/ath/wcn36xx/main.c
>> +++ b/drivers/net/wireless/ath/wcn36xx/main.c
>> @@ -1146,7 +1146,7 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
>> BIT(NL80211_IFTYPE_MESH_POINT);
>>
>> wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
>> - if (wcn->rf_id != RF_IRIS_WCN3620)
>> + if (wcn->rf_id != RF_IRIS_WCN3610 && wcn->rf_id != RF_IRIS_WCN3620)
>> wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
>>
>> wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
>> @@ -1248,6 +1248,8 @@ static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
>> if (iris_node) {
>> if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
>> wcn->rf_id = RF_IRIS_WCN3620;
>> + else if (of_device_is_compatible(iris_node, "qcom,wcn3610"))
>> + wcn->rf_id = RF_IRIS_WCN3610;
>> of_node_put(iris_node);
>> }
> Should we document qcom,wcn3610 just like wcn3620 is:
>
> Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt: "qcom,wcn3620",
IMHO the mentioned bindings is related to the PIL (peripheral image loaded) which is just the firmware part and has
nothing to do with wifi frontend(IRIS).

2018-03-29 07:45:11

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH v2] wcn36xx: Disable 5GHz for wcn3610

(really adding Bjorn)

Ramon Fried <[email protected]> writes:

> (adding Bjorn Andersson)
>
>
> On 3/29/2018 10:15 AM, Kalle Valo wrote:
>> (adding devicetree list)
>>
>> Ramon Fried <[email protected]> writes:
>>
>>> wcn3610 can only operate on 2.4GHz band due to RF limitation.
>>> If wcn36xx digital block is associated with an external IRIS
>>> RF module, retrieve the id and disable 5GHz band in case of
>>> wcn3610 id.
>>>
>>> Signed-off-by: Ramon Fried <[email protected]>
>>> ---
>>> v2: fixed wrong assignment, which is logically introduces the
>>> same behaviour, but for correctness.
>>>
>>> drivers/net/wireless/ath/wcn36xx/main.c | 4 +++-
>>> drivers/net/wireless/ath/wcn36xx/wcn36xx.h | 1 +
>>> 2 files changed, 4 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
>>> index ab5be6d2c691..833531a68c95 100644
>>> --- a/drivers/net/wireless/ath/wcn36xx/main.c
>>> +++ b/drivers/net/wireless/ath/wcn36xx/main.c
>>> @@ -1146,7 +1146,7 @@ static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
>>> BIT(NL80211_IFTYPE_MESH_POINT);
>>>
>>> wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
>>> - if (wcn->rf_id != RF_IRIS_WCN3620)
>>> + if (wcn->rf_id != RF_IRIS_WCN3610 && wcn->rf_id != RF_IRIS_WCN3620)
>>> wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
>>>
>>> wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
>>> @@ -1248,6 +1248,8 @@ static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
>>> if (iris_node) {
>>> if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
>>> wcn->rf_id = RF_IRIS_WCN3620;
>>> + else if (of_device_is_compatible(iris_node, "qcom,wcn3610"))
>>> + wcn->rf_id = RF_IRIS_WCN3610;
>>> of_node_put(iris_node);
>>> }
>> Should we document qcom,wcn3610 just like wcn3620 is:
>>
>> Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt:
>> "qcom,wcn3620",
>
> IMHO the mentioned bindings is related to the PIL (peripheral image
> loaded) which is just the firmware part and has
> nothing to do with wifi frontend(IRIS).

Should we then have a bindings document for wcn36xx or is it ok to use
compatible strings like this without any docs? I'm not very familiar
with the devicetree stuff.

--
Kalle Valo

2018-03-29 07:41:14

by Loic Poulain

[permalink] [raw]
Subject: Re: [PATCH v2] wcn36xx: Disable 5GHz for wcn3610

Hi Ramon,

On 29 March 2018 at 09:32, Ramon Fried <[email protected]> wrote:

>> Should we document qcom,wcn3610 just like wcn3620 is:
>>
>> Documentation/devicetree/bindings/remoteproc/qcom,wcnss-pil.txt: "qcom,wcn3620",
> IMHO the mentioned bindings is related to the PIL (peripheral image loaded) which is just the firmware part and has
> nothing to do with wifi frontend(IRIS).
>

It seems that the RF is a subnode of the PIL node:

"= SUBNODES
A required subnode of the WCNSS PIL is used to describe the attached rf module
and its resource dependencies. It is described by the following properties:"

So we should add qcom,wcn3610 to the exiting list of 'compatible' rf modules.

Regards,
Loic