drm/i2c: tda998x: fix bad value in the AIF

The AIF has an uninitialized byte. This patch clears the whole buffer
before filling it.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drm/i2c: tda998x: check the CEC device creation

This patch checks if the CEC device is well created at intialization
time.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drm/i2c: tda998x: free the CEC device on encoder_destroy

The cec i2c device is created in tda998x_encoder_init() when the DRM
driver starts.
This patch frees it when the DRM driver is unloaded.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drm/i2c: tda998x: force the page register at startup time

This patch forces the page register to be set on the first I/O operation.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drm/i2c: tda998x: set the PLL division factor in range 0..3

The predivider division factor of the register PLL_SERIAL_2 is in the
range 0..3, the value 0 being used for a division by 1.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drm/i2c: tda998x: fix the ENABLE_SPACE register

This patch fixes the ENABLE_SPACE register, the value of which was
inverted.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
iwlwifi: mvm: implement AP/GO uAPSD support

Newer firmware will support uAPSD clients in AP/GO mode, so complete
the driver support for it. The way it works is described in comments
in the code, but basically the driver just has to pass down all the
mac80211 requests and do accounting on agg/non-agg queues properly.

For older firmware, this doesn't change anything as it ignores the
fields used by the new firmware, and we only advertise uAPSD support
when the firmware does.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: Add 8000 HW family support

add 8000-family configuration to iwl_cfg struct.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: mvm: support NVM sections for family 8000

The identification of the hardware section in the NVM
of new devices has been changed, hence the need to add it
to iwl_cfg and adapt the code that uses this value
accordingly.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: pcie: disable APMG configurations for family 8000

APMG HW block was removed in this NIC, hence, no need to
configure it.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: pcie: change CSR reset in family 8000

This register is not present in 8000 family devices.
There is prph register instead.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: pcie: Disable L0S exit timer for 8000 HW family

This configuration is invalid for this family.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: pcie: fix secure section / dual cpu firmware loading

Also handle the bypass mode in which the second CPU doesn't
interfere.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: pcie: make FH debugfs file code easier to understand

The code seems fine, as buf won't be assigned when an error
is returned, but checking for the error first is easier to
understand.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: 7000: warn about old firmware

iwlwifi-7260-8.ucode has been release. Warn if it is not
on the file system.
iwlwifi-7260-7.ucode is still supported for another kernel
version.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: remove obsolete TODO

The calib_version is 255 and this is perfectly fine - no
need to leave a TODO there.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: mvm: provide helper to fetch the iwl_mvm_sta from sta_id

We somtimes need to fetch the iwl_mvm_sta structure from a
station index - provide a helper to do that.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: mvm: check ARRAY_SIZE(mvm->fw_id_to_mac_id) = IWL_MVM_STATION_COUNT

Since we use IWL_MVM_STATION_COUNT all over the driver, we
need to make sure that it is the right constant to look at.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: pcie: fix unused variable gcc warning

In iwl_pcie_int_cause_non_ict, trans_pcie is used for lockdep
purposes only. Since this might not be enabled, trans_pcie
finds itself without user leading to a complaint from gcc.
Avoid using trans_pcie by inlining IWL_TRANS_GET_PCIE_TRANS.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: mvm: don't stop sched scan in restart

Don't stop scheduled scan before reporting HW restart;
mac80211 was changed to reschedule it after reconfigure.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>