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| author | Carl Huang <cjhuang@codeaurora.org> | 2020-12-10 16:05:23 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-12-12 06:40:20 +0200 |
| commit | 0ccdf43988279eed70dece82ffff08fb15278d2c (patch) | |
| tree | cf34cee3d61af50990798e745d4fd6a9b19837d6 | |
| parent | 0699940755e93fc307328523d58c15b8f42e5fe2 (diff) | |
| download | lwn-0ccdf43988279eed70dece82ffff08fb15278d2c.tar.gz lwn-0ccdf43988279eed70dece82ffff08fb15278d2c.zip | |
ath11k: pci: disable VDD4BLOW
It's recommended to disable VDD4BLOW during initialisation.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607609124-17250-6-git-send-email-kvalo@codeaurora.org
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/pci.c | 10 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/pci.h | 3 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index 064c35052697..818e37c32a85 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -346,6 +346,15 @@ static void ath11k_pci_clear_all_intrs(struct ath11k_base *ab) ath11k_pci_write32(ab, PCIE_PCIE_INT_ALL_CLEAR, PCIE_INT_CLEAR_ALL); } +static void ath11k_pci_set_wlaon_pwr_ctrl(struct ath11k_base *ab) +{ + u32 val; + + val = ath11k_pci_read32(ab, WLAON_QFPROM_PWR_CTRL_REG); + val &= ~QFPROM_PWR_CTRL_VDD4BLOW_MASK; + ath11k_pci_write32(ab, WLAON_QFPROM_PWR_CTRL_REG, val); +} + static void ath11k_pci_force_wake(struct ath11k_base *ab) { ath11k_pci_write32(ab, PCIE_SOC_WAKE_PCIE_LOCAL_REG, 1); @@ -357,6 +366,7 @@ static void ath11k_pci_sw_reset(struct ath11k_base *ab, bool power_on) if (power_on) { ath11k_pci_enable_ltssm(ab); ath11k_pci_clear_all_intrs(ab); + ath11k_pci_set_wlaon_pwr_ctrl(ab); ath11k_pci_fix_l1ss(ab); } diff --git a/drivers/net/wireless/ath/ath11k/pci.h b/drivers/net/wireless/ath/ath11k/pci.h index 6e7cc8904c3d..0432a702416b 100644 --- a/drivers/net/wireless/ath/ath11k/pci.h +++ b/drivers/net/wireless/ath/ath11k/pci.h @@ -45,6 +45,9 @@ #define PCIE_USB3_PCS_MISC_OSC_DTCT_CONFIG4_VAL 0xff #define PCIE_USB3_PCS_MISC_OSC_DTCT_CONFIG_MSK 0x000000ff +#define WLAON_QFPROM_PWR_CTRL_REG 0x01f8031c +#define QFPROM_PWR_CTRL_VDD4BLOW_MASK 0x4 + struct ath11k_msi_user { char *name; int num_vectors; |