From: Avri Altman Date: Mon, 11 May 2015 08:04:34 +0000 (+0300) Subject: iwlwifi: pcie: Control access to the NIC's PM registers via iwl_cfg X-Git-Tag: firefly_0821_release~176^2~1587^2~139^2^2~12 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=95411d0455cc522c9f5176d37940a311e0241c42;p=firefly-linux-kernel-4.4.55.git iwlwifi: pcie: Control access to the NIC's PM registers via iwl_cfg Allow a cleaner way to access those hw-dependent registers, instead of using the product family type etc. Signed-off-by: Avri Altman Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c index 5dca838a3e8b..5c08f7035b4f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-8000.c +++ b/drivers/net/wireless/iwlwifi/iwl-8000.c @@ -163,7 +163,8 @@ static const struct iwl_tt_params iwl8000_tt_params = { .smem_len = IWL8260_SMEM_LEN, \ .default_nvm_file_B_step = DEFAULT_NVM_FILE_FAMILY_8000B, \ .default_nvm_file_C_step = DEFAULT_NVM_FILE_FAMILY_8000C, \ - .thermal_params = &iwl8000_tt_params + .thermal_params = &iwl8000_tt_params, \ + .apmg_not_supported = true const struct iwl_cfg iwl8260_2n_cfg = { .name = "Intel(R) Dual Band Wireless N 8260", diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index 225b6d6b8573..08c14afeb148 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -360,6 +360,7 @@ struct iwl_cfg { const u32 smem_offset; const u32 smem_len; const struct iwl_tt_params *thermal_params; + bool apmg_not_supported; }; /* diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index 690b33677510..91ca626704e3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -194,7 +194,7 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) * (PCIe power is lost before PERST# is asserted), causing ME FW * to lose ownership and not being able to obtain it back. */ - if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + if (!mvm->trans->cfg->apmg_not_supported) iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index 7ff69c642103..adad8d0fae7f 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -775,6 +775,7 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans) /* W/A for WiFi/WiMAX coex and WiMAX own the RF */ if (trans->cfg->internal_wimax_coex && + !trans->cfg->apmg_not_supported && (!(iwl_read_prph(trans, APMG_CLK_CTRL_REG) & APMS_CLK_VAL_MRB_FUNC_MODE) || (iwl_read_prph(trans, APMG_PS_CTRL_REG) & diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index a341ed90f8a8..dd1b90b04763 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -182,6 +182,9 @@ static void iwl_trans_pcie_write_shr(struct iwl_trans *trans, u32 reg, u32 val) static void iwl_pcie_set_pwr(struct iwl_trans *trans, bool vaux) { + if (!trans->cfg->apmg_not_supported) + return; + if (vaux && pci_pme_capable(to_pci_dev(trans->dev), PCI_D3cold)) iwl_set_bits_mask_prph(trans, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_PWR_SRC_VAUX, @@ -315,7 +318,7 @@ static int iwl_pcie_apm_init(struct iwl_trans *trans) * bits do not disable clocks. This preserves any hardware * bits already set by default in "CLK_CTRL_REG" after reset. */ - if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) { + if (!trans->cfg->apmg_not_supported) { iwl_write_prph(trans, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); udelay(20); @@ -515,8 +518,7 @@ static int iwl_pcie_nic_init(struct iwl_trans *trans) spin_unlock(&trans_pcie->irq_lock); - if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) - iwl_pcie_set_pwr(trans, false); + iwl_pcie_set_pwr(trans, false); iwl_op_mode_nic_config(trans->op_mode); @@ -1063,7 +1065,7 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power) iwl_pcie_rx_stop(trans); /* Power-down device's busmaster DMA clocks */ - if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) { + if (!trans->cfg->apmg_not_supported) { iwl_write_prph(trans, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); udelay(5); @@ -1160,8 +1162,7 @@ static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans, bool test) */ iwl_trans_pcie_tx_reset(trans); - if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) - iwl_pcie_set_pwr(trans, true); + iwl_pcie_set_pwr(trans, true); } static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, @@ -1199,8 +1200,7 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, return ret; } - if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) - iwl_pcie_set_pwr(trans, false); + iwl_pcie_set_pwr(trans, false); iwl_trans_pcie_tx_reset(trans);