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  1. 03 11月, 2009 4 次提交
    • B
      iwlwifi: remove power-wasting calls to apm_ops.init() · 88521364
      由 Ben Cahill 提交于 
      To save power, don't run apm_ops.init() until needed at "up" time.

EEPROM (5000 and earlier devices) may be read without running apm_ops.init(),
but OTP reads (6000 and newer devices) require a powered-up chip.
Therefore, remove apm_ops.init() from the general path in XXXX_pci_probe(),
and call it only if device uses OTP.  Once done with OTP read, call
apm_ops.stop() to reset chip and save power until "up" time comes around.

NOTE:  This patch depends on removal of priv->lock from iwl_apm_stop();
lock does not get initialized until later in flow.  See patch
"remove unneeded locks from apm_stop()".
Signed-off-by: NBen Cahill <ben.m.cahill@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      88521364
    • B
      iwlwifi: remove unneeded locks from apm_stop() and stop_master() · 5220af0c
      由 Ben Cahill 提交于 
      Since priv->reg_lock was added to keep multi-access register manipulation
atomic, priv->lock protection is no longer needed.  Remove this from
iwl_apm_stop_master() and iwl_apm_stop().

Add warning of timeout when polling for busmaster disablement confirmation,
and some comments.

NOTE:  This is needed to enable use of apm_ops.stop() within iwl_eeprom_init();
priv->lock does not get initialized until after this flow.  See patch
"remove power-wasting calls to apm_ops.init()"
Signed-off-by: NBen Cahill <ben.m.cahill@intel.com>
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      5220af0c
    • R
      iwlwifi: provide firmware version · 5ebeb5a6
      由 Reinette Chatre 提交于 
      By setting the firmware version in wiphy it is possible to obtain this
information via ethtool. Some examples,

	    # ethtool -i wlan1
	    driver: iwlagn
	    version: 2.6.32-rc5-wl-56840-g26d8540
	    firmware-version: 228.57.2.23
	    bus-info: 0000:03:00.0
	    # ethtool -i wlan0
	    driver: iwl3945
	    version: 2.6.32-rc5-wl-56840-g26d8540
	    firmware-version: 15.28.2.8
	    bus-info: 0000:02:00.0
Signed-off-by: NReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      5ebeb5a6
    • A
      libertas: remove internal buffers from GSPI driver · 86c34fe8
      由 Andrey Yurovsky 提交于 
      This patch removes the internal command and data buffers that the GSPI driver
maintained and instead relies on the Libertas core to synchronize access
to the command and data ports as with the other interface drivers.  This
cleanup reduces the GSPI driver's memory footprint and should improve
performance by removing the need to copy to these internal buffers.
This also simplifies the bottom half of the interrupt handler.

This is an incremental cleanup: after removing the redundant buffers, we
can further improve the driver to use a threaded IRQ handler instead of
maintaining its own thread.  However I would like a few folks to test
the buffer removal first and make sure that I'm not introducing
regressions.

Tested on Blackfin BF527 with DMA disabled due to an issue with the SPI
host controller driver in the current bleeding-edge Blackfin kernel.  I
would appreciate it if someone with working DMA could test this patch
and provide feedback.
Signed-off-by: NAndrey Yurovsky <andrey@cozybit.com>
Tested-by: NGeorge Shore <george.shore@imgtec.com>
Acked-by: NDan Williams <dcbw@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      86c34fe8
  3. 31 10月, 2009 32 次提交
  5. 28 10月, 2009 4 次提交