diff options
| author | Luca Coelho <luciano.coelho@intel.com> | 2021-06-21 10:37:36 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-06-22 16:57:57 +0300 |
| commit | 9dad325f9d57508b154f0bebbc341a8528e5729c (patch) | |
| tree | 85b7bfb455ae2e46264fa5477da402d0857b6132 /drivers/net/wireless/intel/iwlwifi/pcie/trans.c | |
| parent | 84c3c9952afbf7df39937095aa0ad70b58703e91 (diff) | |
iwlwifi: support loading the reduced power table from UEFI
This new feature allows OEMs to set a special reduced power table in a
UEFI variable, which we use to tell the firmware to change the TX
power tables.
Read the variable and store it in a dram block to pass it to the
firmware. We do this as part of the PNVM loading flow.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210621103449.259a33ba5074.I2e0bb142d2a9c412547cba89b62dd077b328fdc4@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/trans.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index 1331a6bfd767..bee6b4574226 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -1943,6 +1943,12 @@ void iwl_trans_pcie_free(struct iwl_trans *trans) trans_pcie->pnvm_dram.block, trans_pcie->pnvm_dram.physical); + if (trans_pcie->reduce_power_dram.size) + dma_free_coherent(trans->dev, + trans_pcie->reduce_power_dram.size, + trans_pcie->reduce_power_dram.block, + trans_pcie->reduce_power_dram.physical); + mutex_destroy(&trans_pcie->mutex); iwl_trans_free(trans); } @@ -3418,6 +3424,7 @@ static const struct iwl_trans_ops trans_ops_pcie_gen2 = { .wait_txq_empty = iwl_trans_pcie_wait_txq_empty, .rxq_dma_data = iwl_trans_pcie_rxq_dma_data, .set_pnvm = iwl_trans_pcie_ctx_info_gen3_set_pnvm, + .set_reduce_power = iwl_trans_pcie_ctx_info_gen3_set_reduce_power, #ifdef CONFIG_IWLWIFI_DEBUGFS .debugfs_cleanup = iwl_trans_pcie_debugfs_cleanup, #endif |