[PATCH AUTOSEL 6.8 06/30] wifi: rtw89: 8852c: add quirk to set PCI BER for certain platforms

Sasha Levin
2024-05-27T14:14:30Z

From: Ping-Ke Shih <pkshih@realtek.com>

[ Upstream commit 5b919d726b613c78d4dc463dd9f90c55843fd1b3 ]

Increase PCI BER (bit error rate) count depth setting which could increase
PHY circuit fault tolerance and improve compatibility.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240329015251.22762-4-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtw89/core.c | 18 +++++++++++++++
drivers/net/wireless/realtek/rtw89/core.h | 10 ++++++++
drivers/net/wireless/realtek/rtw89/pci.c | 19 +++++++++++++++
drivers/net/wireless/realtek/rtw89/pci.h | 5 ++++
.../net/wireless/realtek/rtw89/rtw8851be.c | 1 +
.../net/wireless/realtek/rtw89/rtw8852ae.c | 1 +
.../net/wireless/realtek/rtw89/rtw8852be.c | 1 +
.../net/wireless/realtek/rtw89/rtw8852ce.c | 23 +++++++++++++++++++
.../net/wireless/realtek/rtw89/rtw8922ae.c | 1 +
9 files changed, 79 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index fd527a2499964..b967d80ec84b5 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -3940,6 +3940,24 @@ void rtw89_core_ntfy_btc_event(struct rtw89_dev *rtwdev, enum rtw89_btc_hmsg eve
}
}

+void rtw89_check_quirks(struct rtw89_dev *rtwdev, const struct dmi_system_id *quirks)
+{
+ const struct dmi_system_id *match;
+ enum rtw89_quirks quirk;
+
+ if (!quirks)
+ return;
+
+ for (match = dmi_first_match(quirks); match; match = dmi_first_match(match + 1)) {
+ quirk = (uintptr_t)match->driver_data;
+ if (quirk >= NUM_OF_RTW89_QUIRKS)
+ continue;
+
+ set_bit(quirk, rtwdev->quirks);
+ }
+}
+EXPORT_SYMBOL(rtw89_check_quirks);
+
int rtw89_core_start(struct rtw89_dev *rtwdev)
{
int ret;
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index ea6df859ba152..e72a6a958a231 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -7,6 +7,7 @@

#include <linux/average.h>
#include <linux/bitfield.h>
+#include <linux/dmi.h>
#include <linux/firmware.h>
#include <linux/iopoll.h>
#include <linux/workqueue.h>
@@ -3812,6 +3813,7 @@ union rtw89_bus_info {

struct rtw89_driver_info {
const struct rtw89_chip_info *chip;
+ const struct dmi_system_id *quirks;
union rtw89_bus_info bus;
};

@@ -4139,6 +4141,12 @@ enum rtw89_flags {
NUM_OF_RTW89_FLAGS,
};

+enum rtw89_quirks {
+ RTW89_QUIRK_PCI_BER,
+
+ NUM_OF_RTW89_QUIRKS,
+};
+
enum rtw89_pkt_drop_sel {
RTW89_PKT_DROP_SEL_MACID_BE_ONCE,
RTW89_PKT_DROP_SEL_MACID_BK_ONCE,
@@ -4804,6 +4812,7 @@ struct rtw89_dev {
DECLARE_BITMAP(mac_id_map, RTW89_MAX_MAC_ID_NUM);
DECLARE_BITMAP(flags, NUM_OF_RTW89_FLAGS);
DECLARE_BITMAP(pkt_offload, RTW89_MAX_PKT_OFLD_NUM);
+ DECLARE_BITMAP(quirks, NUM_OF_RTW89_QUIRKS);

struct rtw89_phy_stat phystat;
struct rtw89_dack_info dack;
@@ -5803,6 +5812,7 @@ int rtw89_core_sta_remove(struct rtw89_dev *rtwdev,
void rtw89_core_set_tid_config(struct rtw89_dev *rtwdev,
struct ieee80211_sta *sta,
struct cfg80211_tid_config *tid_config);
+void rtw89_check_quirks(struct rtw89_dev *rtwdev, const struct dmi_system_id *quirks);
int rtw89_core_init(struct rtw89_dev *rtwdev);
void rtw89_core_deinit(struct rtw89_dev *rtwdev);
int rtw89_core_register(struct rtw89_dev *rtwdev);
diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index cb03474f81552..59b04197609d7 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -2233,6 +2233,22 @@ static int rtw89_pci_deglitch_setting(struct rtw89_dev *rtwdev)
return 0;
}

+static void rtw89_pci_ber(struct rtw89_dev *rtwdev)
+{
+ u32 phy_offset;
+
+ if (!test_bit(RTW89_QUIRK_PCI_BER, rtwdev->quirks))
+ return;
+
+ phy_offset = R_RAC_DIRECT_OFFSET_G1;
+ rtw89_write16(rtwdev, phy_offset + RAC_ANA1E * RAC_MULT, RAC_ANA1E_G1_VAL);
+ rtw89_write16(rtwdev, phy_offset + RAC_ANA2E * RAC_MULT, RAC_ANA2E_VAL);
+
+ phy_offset = R_RAC_DIRECT_OFFSET_G2;
+ rtw89_write16(rtwdev, phy_offset + RAC_ANA1E * RAC_MULT, RAC_ANA1E_G2_VAL);
+ rtw89_write16(rtwdev, phy_offset + RAC_ANA2E * RAC_MULT, RAC_ANA2E_VAL);
+}
+
static void rtw89_pci_rxdma_prefth(struct rtw89_dev *rtwdev)
{
if (rtwdev->chip->chip_id != RTL8852A)
@@ -2630,6 +2646,7 @@ static int rtw89_pci_ops_mac_pre_init_ax(struct rtw89_dev *rtwdev)
const struct rtw89_pci_info *info = rtwdev->pci_info;
int ret;

+ rtw89_pci_ber(rtwdev);
rtw89_pci_rxdma_prefth(rtwdev);
rtw89_pci_l1off_pwroff(rtwdev);
rtw89_pci_deglitch_setting(rtwdev);
@@ -4072,6 +4089,8 @@ int rtw89_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
rtwdev->hci.rpwm_addr = pci_info->rpwm_addr;
rtwdev->hci.cpwm_addr = pci_info->cpwm_addr;

+ rtw89_check_quirks(rtwdev, info->quirks);
+
SET_IEEE80211_DEV(rtwdev->hw, &pdev->dev);

ret = rtw89_core_init(rtwdev);
diff --git a/drivers/net/wireless/realtek/rtw89/pci.h b/drivers/net/wireless/realtek/rtw89/pci.h
index 772a84bd8db6b..b50d7a18e30bc 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.h
+++ b/drivers/net/wireless/realtek/rtw89/pci.h
@@ -26,11 +26,16 @@
#define RAC_REG_FLD_0 0x1D
#define BAC_AUTOK_N_MASK GENMASK(3, 2)
#define PCIE_AUTOK_4 0x3
+#define RAC_ANA1E 0x1E
+#define RAC_ANA1E_G1_VAL 0x66EA
+#define RAC_ANA1E_G2_VAL 0x6EEA
#define RAC_ANA1F 0x1F
#define RAC_ANA24 0x24
#define B_AX_DEGLITCH GENMASK(11, 8)
#define RAC_ANA26 0x26
#define B_AX_RXEN GENMASK(15, 14)
+#define RAC_ANA2E 0x2E
+#define RAC_ANA2E_VAL 0xFFFE
#define RAC_CTRL_PPR_V1 0x30
#define B_AX_CLK_CALIB_EN BIT(12)
#define B_AX_CALIB_EN BIT(13)
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8851be.c b/drivers/net/wireless/realtek/rtw89/rtw8851be.c
index ca1374a717272..ec3629d95fda1 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8851be.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8851be.c
@@ -63,6 +63,7 @@ static const struct rtw89_pci_info rtw8851b_pci_info = {

static const struct rtw89_driver_info rtw89_8851be_info = {
.chip = &rtw8851b_chip_info,
+ .quirks = NULL,
.bus = {
.pci = &rtw8851b_pci_info,
},
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852ae.c b/drivers/net/wireless/realtek/rtw89/rtw8852ae.c
index 7c6ffedb77e27..fdee5dd4ba148 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852ae.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852ae.c
@@ -61,6 +61,7 @@ static const struct rtw89_pci_info rtw8852a_pci_info = {

static const struct rtw89_driver_info rtw89_8852ae_info = {
.chip = &rtw8852a_chip_info,
+ .quirks = NULL,
.bus = {
.pci = &rtw8852a_pci_info,
},
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852be.c b/drivers/net/wireless/realtek/rtw89/rtw8852be.c
index ed71364e6437b..5f941122655c4 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852be.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852be.c
@@ -63,6 +63,7 @@ static const struct rtw89_pci_info rtw8852b_pci_info = {

static const struct rtw89_driver_info rtw89_8852be_info = {
.chip = &rtw8852b_chip_info,
+ .quirks = NULL,
.bus = {
.pci = &rtw8852b_pci_info,
},
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852ce.c b/drivers/net/wireless/realtek/rtw89/rtw8852ce.c
index 583ea673a4f54..e07c7f3ade41e 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852ce.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852ce.c
@@ -68,8 +68,31 @@ static const struct rtw89_pci_info rtw8852c_pci_info = {
.recognize_intrs = rtw89_pci_recognize_intrs_v1,
};

+static const struct dmi_system_id rtw8852c_pci_quirks[] = {
+ {
+ .ident = "Dell Inc. Vostro 16 5640",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 16 5640"),
+ DMI_MATCH(DMI_PRODUCT_SKU, "0CA0"),
+ },
+ .driver_data = (void *)RTW89_QUIRK_PCI_BER,
+ },
+ {
+ .ident = "Dell Inc. Inspiron 16 5640",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 16 5640"),
+ DMI_MATCH(DMI_PRODUCT_SKU, "0C9F"),
+ },
+ .driver_data = (void *)RTW89_QUIRK_PCI_BER,
+ },
+ {},
+};
+
static const struct rtw89_driver_info rtw89_8852ce_info = {
.chip = &rtw8852c_chip_info,
+ .quirks = rtw8852c_pci_quirks,
.bus = {
.pci = &rtw8852c_pci_info,
},
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8922ae.c b/drivers/net/wireless/realtek/rtw89/rtw8922ae.c
index 9f46fb1661055..15ea8e20dde36 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8922ae.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8922ae.c
@@ -61,6 +61,7 @@ static const struct rtw89_pci_info rtw8922a_pci_info = {

static const struct rtw89_driver_info rtw89_8922ae_info = {
.chip = &rtw8922a_chip_info,
+ .quirks = NULL,
.bus = {
.pci = &rtw8922a_pci_info,
},
--
2.43.0