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Date: Fri, 10 Dec 2021 16:17:01 +0800
From: Jian-Hong Pan <jhp@...lessos.org>
To: Ping-Ke Shih <pkshih@...ltek.com>,
Yan-Hsuan Chuang <tony0620emma@...il.com>,
Kalle Valo <kvalo@...eaurora.org>
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, linux@...lessos.org,
Jian-Hong Pan <jhp@...lessos.org>
Subject: [PATCH] rtw88: 8821c: disable the ASPM of RTL8821CE
More and more laptops become frozen, due to the equipped RTL8821CE.
This patch follows the idea mentioned in commits 956c6d4f20c5 ("rtw88:
add quirks to disable pci capabilities") and 1d4dcaf3db9bd ("rtw88: add
quirk to disable pci caps on HP Pavilion 14-ce0xxx"), but disables its
PCI ASPM capability of RTL8821CE directly, instead of checking DMI.
Buglink:https://bugzilla.kernel.org/show_bug.cgi?id=215239
Fixes: 1d4dcaf3db9bd ("rtw88: add quirk to disable pci caps on HP Pavilion 14-ce0xxx")
Signed-off-by: Jian-Hong Pan <jhp@...lessos.org>
---
drivers/net/wireless/realtek/rtw88/main.h | 3 ++
drivers/net/wireless/realtek/rtw88/pci.c | 33 ++-----------------
drivers/net/wireless/realtek/rtw88/pci.h | 5 +++
drivers/net/wireless/realtek/rtw88/rtw8821c.c | 3 ++
4 files changed, 14 insertions(+), 30 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h
index bbdd535b64e7..31cd427a0949 100644
--- a/drivers/net/wireless/realtek/rtw88/main.h
+++ b/drivers/net/wireless/realtek/rtw88/main.h
@@ -1259,6 +1259,9 @@ struct rtw_chip_info {
const struct rtw_hw_reg *btg_reg;
const struct rtw_reg_domain *coex_info_hw_regs;
u32 wl_fw_desired_ver;
+
+ /* quirk flags */
+ u32 pci_quirk_data;
};
enum rtw_coex_bt_state_cnt {
diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index a7a6ebfaa203..0a858db2d515 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.c
+++ b/drivers/net/wireless/realtek/rtw88/pci.c
@@ -1702,14 +1702,9 @@ static void rtw_pci_napi_deinit(struct rtw_dev *rtwdev)
netif_napi_del(&rtwpci->napi);
}
-enum rtw88_quirk_dis_pci_caps {
- QUIRK_DIS_PCI_CAP_MSI,
- QUIRK_DIS_PCI_CAP_ASPM,
-};
-
-static int disable_pci_caps(const struct dmi_system_id *dmi)
+static int disable_pci_caps_by_chip(const struct rtw_chip_info *chip)
{
- uintptr_t dis_caps = (uintptr_t)dmi->driver_data;
+ u32 dis_caps = chip->pci_quirk_data;
if (dis_caps & BIT(QUIRK_DIS_PCI_CAP_MSI))
rtw_disable_msi = true;
@@ -1719,28 +1714,6 @@ static int disable_pci_caps(const struct dmi_system_id *dmi)
return 1;
}
-static const struct dmi_system_id rtw88_pci_quirks[] = {
- {
- .callback = disable_pci_caps,
- .ident = "Protempo Ltd L116HTN6SPW",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Protempo Ltd"),
- DMI_MATCH(DMI_PRODUCT_NAME, "L116HTN6SPW"),
- },
- .driver_data = (void *)BIT(QUIRK_DIS_PCI_CAP_ASPM),
- },
- {
- .callback = disable_pci_caps,
- .ident = "HP HP Pavilion Laptop 14-ce0xxx",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "HP"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Laptop 14-ce0xxx"),
- },
- .driver_data = (void *)BIT(QUIRK_DIS_PCI_CAP_ASPM),
- },
- {}
-};
-
int rtw_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
@@ -1791,7 +1764,7 @@ int rtw_pci_probe(struct pci_dev *pdev,
goto err_destroy_pci;
}
- dmi_check_system(rtw88_pci_quirks);
+ disable_pci_caps_by_chip(rtwdev->chip);
rtw_pci_phy_cfg(rtwdev);
ret = rtw_register_hw(rtwdev, hw);
diff --git a/drivers/net/wireless/realtek/rtw88/pci.h b/drivers/net/wireless/realtek/rtw88/pci.h
index 66f78eb7757c..f470387fbb9a 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.h
+++ b/drivers/net/wireless/realtek/rtw88/pci.h
@@ -274,4 +274,9 @@ struct rtw_pci_tx_buffer_desc *get_tx_buffer_desc(struct rtw_pci_tx_ring *ring,
return (struct rtw_pci_tx_buffer_desc *)buf_desc;
}
+enum rtw88_quirk_dis_pci_caps {
+ QUIRK_DIS_PCI_CAP_MSI,
+ QUIRK_DIS_PCI_CAP_ASPM,
+};
+
#endif
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
index 80a6f4da6acd..4d684534fa1e 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
@@ -15,6 +15,7 @@
#include "debug.h"
#include "bf.h"
#include "regd.h"
+#include "pci.h"
static const s8 lna_gain_table_0[8] = {22, 8, -6, -22, -31, -40, -46, -52};
static const s8 lna_gain_table_1[16] = {10, 6, 2, -2, -6, -10, -14, -17,
@@ -1947,6 +1948,8 @@ struct rtw_chip_info rtw8821c_hw_spec = {
.coex_info_hw_regs_num = ARRAY_SIZE(coex_info_hw_regs_8821c),
.coex_info_hw_regs = coex_info_hw_regs_8821c,
+
+ .pci_quirk_data = BIT(QUIRK_DIS_PCI_CAP_ASPM),
};
EXPORT_SYMBOL(rtw8821c_hw_spec);
--
2.34.1
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