2024-05-09 23:11:02

by Samasth Norway Ananda

[permalink] [raw]
Subject: [PATCH] brcmsmac: LCN PHY code is used for BCM4313 2G-only device

The band_idx variable in the function wlc_lcnphy_tx_iqlo_cal() will
never be set to 1 as BCM4313 is the only device for which the LCN PHY
code is used. This is a 2G-only device.

Fixes: 5b435de0d786 ("net: wireless: add brcm80211 drivers")
Signed-off-by: Samasth Norway Ananda <[email protected]>
---
.../broadcom/brcm80211/brcmsmac/phy/phy_lcn.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
index aae2cf95fe95..e472591f321b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
@@ -2567,7 +2567,6 @@ wlc_lcnphy_tx_iqlo_cal(struct brcms_phy *pi,

struct lcnphy_txgains cal_gains, temp_gains;
u16 hash;
- u8 band_idx;
int j;
u16 ncorr_override[5];
u16 syst_coeffs[] = { 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
@@ -2599,6 +2598,9 @@ wlc_lcnphy_tx_iqlo_cal(struct brcms_phy *pi,
u16 *values_to_save;
struct brcms_phy_lcnphy *pi_lcn = pi->u.pi_lcnphy;

+ if (WARN_ON(CHSPEC_IS5G(pi->radio_chanspec)))
+ return;
+
values_to_save = kmalloc_array(20, sizeof(u16), GFP_ATOMIC);
if (NULL == values_to_save)
return;
@@ -2662,20 +2664,18 @@ wlc_lcnphy_tx_iqlo_cal(struct brcms_phy *pi,
hash = (target_gains->gm_gain << 8) |
(target_gains->pga_gain << 4) | (target_gains->pad_gain);

- band_idx = (CHSPEC_IS5G(pi->radio_chanspec) ? 1 : 0);
-
cal_gains = *target_gains;
memset(ncorr_override, 0, sizeof(ncorr_override));
- for (j = 0; j < iqcal_gainparams_numgains_lcnphy[band_idx]; j++) {
- if (hash == tbl_iqcal_gainparams_lcnphy[band_idx][j][0]) {
+ for (j = 0; j < iqcal_gainparams_numgains_lcnphy[0]; j++) {
+ if (hash == tbl_iqcal_gainparams_lcnphy[0][j][0]) {
cal_gains.gm_gain =
- tbl_iqcal_gainparams_lcnphy[band_idx][j][1];
+ tbl_iqcal_gainparams_lcnphy[0][j][1];
cal_gains.pga_gain =
- tbl_iqcal_gainparams_lcnphy[band_idx][j][2];
+ tbl_iqcal_gainparams_lcnphy[0][j][2];
cal_gains.pad_gain =
- tbl_iqcal_gainparams_lcnphy[band_idx][j][3];
+ tbl_iqcal_gainparams_lcnphy[0][j][3];
memcpy(ncorr_override,
- &tbl_iqcal_gainparams_lcnphy[band_idx][j][3],
+ &tbl_iqcal_gainparams_lcnphy[0][j][3],
sizeof(ncorr_override));
break;
}
--
2.43.0



2024-05-12 18:24:42

by Arend Van Spriel

[permalink] [raw]
Subject: Re: [PATCH] brcmsmac: LCN PHY code is used for BCM4313 2G-only device

On 5/10/2024 1:10 AM, Samasth Norway Ananda wrote:
> The band_idx variable in the function wlc_lcnphy_tx_iqlo_cal() will
> never be set to 1 as BCM4313 is the only device for which the LCN PHY
> code is used. This is a 2G-only device.

Thanks for the change. You may consider reducing the number of
dimensions of the array variables involved in using band_idx 0, but I am
fine with the change as is so...

Acked-by: Arend van Spriel <[email protected]>
> Fixes: 5b435de0d786 ("net: wireless: add brcm80211 drivers")
> Signed-off-by: Samasth Norway Ananda <[email protected]>
> ---
> .../broadcom/brcm80211/brcmsmac/phy/phy_lcn.c | 18 +++++++++---------
> 1 file changed, 9 insertions(+), 9 deletions(-)


Attachments:
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2024-05-14 13:34:33

by Kalle Valo

[permalink] [raw]
Subject: Re: wifi: brcmsmac: LCN PHY code is used for BCM4313 2G-only device

Samasth Norway Ananda <[email protected]> wrote:

> The band_idx variable in the function wlc_lcnphy_tx_iqlo_cal() will
> never be set to 1 as BCM4313 is the only device for which the LCN PHY
> code is used. This is a 2G-only device.
>
> Fixes: 5b435de0d786 ("net: wireless: add brcm80211 drivers")
> Signed-off-by: Samasth Norway Ananda <[email protected]>
> Acked-by: Arend van Spriel <[email protected]>

Patch applied to wireless-next.git, thanks.

c636fa85feb4 wifi: brcmsmac: LCN PHY code is used for BCM4313 2G-only device

--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches