diff options
| author | Ben Cahill <ben.m.cahill@intel.com> | 2009-11-06 14:53:03 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-11-11 15:23:48 -0500 |
| commit | 309e731a619bee28ace609b0c4c3a0029b7e5394 (patch) | |
| tree | b3bcb5430d6d7a090ffd0b57b13e431f7b586ca0 /drivers/net/wireless | |
| parent | f060face819401fb1f6456d362c5bc6672bba655 (diff) | |
| download | kernel_samsung_smdk4412-309e731a619bee28ace609b0c4c3a0029b7e5394.zip kernel_samsung_smdk4412-309e731a619bee28ace609b0c4c3a0029b7e5394.tar.gz kernel_samsung_smdk4412-309e731a619bee28ace609b0c4c3a0029b7e5394.tar.bz2 | |
iwlwifi: MAC_ACCESS_REQ cleanup
Add txq_id info to "Tx queue requesting wakeup" debug message
Add "Rx queue requesting wakeup" debug message
Move clear of CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ to be after nearby
iwl_write_prph(), since iwl_write_prph() sets it and clears it. Almost
removed it entirely, but just making sure in case someone removes the
iwl_write_prph()! Also remove unneeded priv->lock usage; this is now
handled by priv->reg_lock within iwl_clear_bit().
Join a couple of lines that had unneeded line returns.
Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.c | 12 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-rx.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-tx.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl3945-base.c | 5 |
4 files changed, 11 insertions, 11 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 8198e14..da0b38e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1934,19 +1934,17 @@ static void __iwl_down(struct iwl_priv *priv) /* device going down, Stop using ICT table */ iwl_disable_ict(priv); - spin_lock_irqsave(&priv->lock, flags); - iwl_clear_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - spin_unlock_irqrestore(&priv->lock, flags); iwl_txq_ctx_stop(priv); iwl_rxq_stop(priv); - iwl_write_prph(priv, APMG_CLK_DIS_REG, - APMG_CLK_VAL_DMA_CLK_RQT); - + /* Power-down device's busmaster DMA clocks */ + iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); udelay(5); + /* Make sure (redundant) we've released our request to stay awake */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + /* Stop the device, and put it in low power state */ priv->cfg->ops->lib->apm_ops.stop(priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index d2dc7cc..61b3b0e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -140,6 +140,8 @@ int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q) reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { + IWL_DEBUG_INFO(priv, "Rx queue requesting wakeup, GP1 = 0x%x\n", + reg); iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); goto exit_unlock; diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 905ceca..9370e06 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -96,7 +96,8 @@ int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq) reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(priv, "Requesting wakeup, GP1 = 0x%x\n", reg); + IWL_DEBUG_INFO(priv, "Tx queue %d requesting wakeup, GP1 = 0x%x\n", + txq_id, reg); iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); return ret; diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 92ecdd9..05f1185 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2600,9 +2600,8 @@ static void __iwl3945_down(struct iwl_priv *priv) iwl3945_hw_txq_ctx_stop(priv); iwl3945_hw_rxq_stop(priv); - iwl_write_prph(priv, APMG_CLK_DIS_REG, - APMG_CLK_VAL_DMA_CLK_RQT); - + /* Power-down device's busmaster DMA clocks */ + iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); udelay(5); /* Stop the device, and put it in low power state */ |