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path: root/drivers/net/wireless/rsi
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2017-07-28rsi: update set_channel command framePrameela Rani Garnepudi
TX command frame set_channel is modified to use common descriptor structure. Also DFS channel indication to firmware is added in the descriptor for dfs channels configuration. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update baseband RF programming framePrameela Rani Garnepudi
Baseband RF programming frame configured to device is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update aggregation parameters command framePrameela Rani Garnepudi
AMPDU aggregation parameters frame configured to device is modified to use common descriptor structure. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update peer notify command framePrameela Rani Garnepudi
TX command frame peer notify is updated to use common descriptor structure. MPDU density value added to the frame. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: remove unnecessary check for 802.11 management packetPrameela Rani Garnepudi
The function rsi_mgmt_pkt_to_core() is for passing the 802.11 management frames to mac80211. So, it is unnecessary to check again for the frame type 802.11 management in this function. It can be checked before passing to this function. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Update in tx command frame radio capabilitiesPrameela Rani Garnepudi
Radio capabilities frame is updated to use common descriptor structure. Also, few changes to this frame is done like hardware queues are increase to 12 from 8, default channel number is included. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: immediate wakeup bit and priority for TX command packetsPrameela Rani Garnepudi
For all TX command packets immediate wakeup bit needs to be set in descriptor. This will make sure device will wakeup if it is in any sleep state. Priority of the packet is also set. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: add common structures needed for command packetsPrameela Rani Garnepudi
All internal management packets (command packets) use some common fields and some packet specific fields for packet descriptors. This patch adds some common structures which are needed for all command packets. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Rename mutex tx_rxlock to the tx_lock.Karun Eagalapati
We have now added separate lock for Rx. This lock is used to protect tx path only Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: use separate mutex lock for receive threadKarun Eagalapati
Deadlock issue is observed during our stress tests. The root cause for the issue is same lock is used between tx and rx threads. This patch adds a separate mutex lock for rx thread to resolve the problem. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: SDIO Rx packet processing enhancementKarun Eagalapati
Newer firmware sends information about number of blocks through interrupt only. We don't need to read extra register for this. This patch adds needed driver changes for this enhancment. The change here is backward compatible Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: Optimise sdio claim and release hostKarun Eagalapati
SDIO host is already claimed in our interrupt handler. Some lower level APIs claims host while performing SDIO read or write operations. Let's use sdio_irq_task variable to check if we are in interrupt context and claim/release the host accordingly. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: rename variable in_sdio_litefi_irqKarun Eagalapati
The variable in_sdio_litefi_irq is renamed to sdio_irq_task, as it is more relevant here. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: separate function for data packet descriptorPavani Muthyala
Data packet descriptor preparation code is moved a separate function. Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: data packet descriptor enhancementsPavani Muthyala
This patch covers some enhancements in data packet descriptor preparation especially for EAPOL, multicast/broadcast packets. Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: data packet descriptor code cleanupPavani Muthyala
Currently this descriptor is prepared with the help of __le16 pointer. This patch makes use of a structure to prepare the descriptor in a cleaner way. Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: separate function for management packet descriptorPrameela Rani Garnepudi
Management descriptor preparation is move to a separate function as it will be called from a different context in upcoming patches. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: management frame descriptor preparation cleanupPavani Muthyala
Currently this descriptor is prepared with the help of __le16 pointer. This patch makes use of a structure to prepare the descriptor in a cleaner way. Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: set immediate wakeup bitKarun Eagalapati
immediate wakeup bit is set while sending internal management frame to the firmware. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: choose correct endpoint based on queue.Karun Eagalapati
Till now only management packets were handled. Let's enhance the logic for choosing endpoint to accommodate other packets. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: rename USB endpoint macrosKarun Eagalapati
These endpoints are for WLAN and BT protocols. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: correct the logic of deriving queue numberAmitkumar Karwar
Maximum valid queue number is 0x5. So anding with 0x7 should be ok here. Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: USB tx headroom cleanupKarun Eagalapati
USB headroom is added while submitting the data to URB as per firmware's requirement. This logic is moved to rsi_usb_card_write() so that caller need not worry about it. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: card reset for USB interfaceKarun Eagalapati
We need to reset the chip in teardown path so that it can work next time when driver is loaded. This patch adds support for this reset configuration for USB. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: correct SDIO disconnect path handlingKarun Eagalapati
Sometimes it's observed that we get interrupt/Rx frame when device is already detached from mac80211. In this case couple of error messages are displayed in dmesg log. This patch corrects the order so that disconnection will happen cleanly Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: chip reset for SDIO interfaceKarun Eagalapati
We need to reset the chip in teardown path so that it can work next time when driver is loaded. This patch adds support for this reset configuration for SDIO. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: fix sdio card reset problemKarun Eagalapati
card reset is not working with recent kernels. Using host->card->ocr instead of host->ocr_avail solved the problem. Signed-off-by: Karun Eagalapati <karun256@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: changes in eeprom read framePrameela Rani Garnepudi
EEPROM read frame is sent during device initialization to read mac address. The format of the frame is modified in firmware to include eeprom length and offset. This frame does not return firmware version now. Also same frame is sent again to read rf type and band information. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-07-28rsi: use BUILD_BUG_ON check for fsm_stateAmitkumar Karwar
Whenever new fsm_state enum element is added, fsm_state array also needs to be updated. If this change is missed, we may end up doing invalid access in array. BUILD_BUG_ON check will help to avoid this problem. Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-28rsi: add in missing RSI_FSM_STATES into array fsm_stateColin Ian King
Two recent commits added new RSI_FSM_STATES (namely FSM_FW_NOT_LOADED and FSM_COMMON_DEV_PARAMS_SENT) and the corresponding table fsm_state was not updated to match. This can lead to an array overrun when accessing the latter two states in fsm_state. Fix this by adding in the missing states. Detected by CoverityScan, CID#1398379 ("Illegal address computation") Fixes: 9920322ccd8e ("rsi: add tx frame for common device configuration") Fixes: 015e367494c1 ("rsi: Register interrupt handler before firmware load") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-25Merge tag 'wireless-drivers-next-for-davem-2017-06-25' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.13 New features and bug fixes to quite a few different drivers, but nothing really special standing out. What makes me happy that we have now more vendors actively contributing to upstream drivers. In this pull request we have patches from Broadcom, Intel, Qualcomm, Realtek and Redpine Signals, and I still have patches from Marvell and Quantenna pending in patchwork. Now that's something comparing to how things looked 11 years ago in Jeff Garzik's "State of the Union: Wireless" email: https://lkml.org/lkml/2006/1/5/671 Major changes: wil6210 * add low level RF sector interface via nl80211 vendor commands * add module parameter ftm_mode to load separate firmware for factory testing * support devices with different PCIe bar size * add support for PCIe D3hot in system suspend * remove ioctl interface which should not be in a wireless driver ath10k * go back to using dma_alloc_coherent() for firmware scratch memory * add per chain RSSI reporting brcmfmac * add support multi-scheduled scan * add scheduled scan support for specified BSSIDs * add support for brcm43430 revision 0 wlcore * add wil1285 compatible rsi * add RS9113 USB support iwlwifi * FW API documentation improvements (for tools and htmldoc) * continuing work for the new A000 family * bump the maximum supported FW API to 31 * improve the differentiation between 8000, 9000 and A000 families ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21rsi: add tx frame for common device configurationPrameela Rani Garnepudi
After successful loading of firmware, a CARD READY indication is received by host. Common device configuration parameters are sent to the device after this. It includes information like device operating mode (Wi-Fi alone or BT coex), power save related parameters, GPIO information etc. As device supports BT coex, this frame is send in COEX queue initially. Based on the operating mode, CARD READY indication is received from each protocol module in firmware i.e. WLAN, BT. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21rsi: configure new boot parameters to devicePrameela Rani Garnepudi
Boot parameters are changed in new firmware. Also three new sdio sleep parameters are added for ultra low power save. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21rsi: receive path enhancement for RS9113Prameela Rani Garnepudi
RS9113 chipset supports Coex feature. Initial frame exchanges during device initialization happens on coex queue. This patch adds the handling for coex queue. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21rsi: Register interrupt handler before firmware loadPrameela Rani Garnepudi
Before firmware load, sometimes false interrupts are received. System hang is observed if interrupt handler is not registered to receive these interrupts. Hence interrupt handler registration is moved before firmware load. We will drop these false interrupts as these are not from the device. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21rsi: use enum for FSM statesAmitkumar Karwar
Currently macros are used for FSM states. We will replace it with enum so that new state can be added easily without worrying about macro value. Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-21rsi: add usb RS9113 chipset supportPrameela Rani Garnepudi
usb device id and vendor id for RS9113 chipset are included. So it can be used through usb interface. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-06-20net: manual clean code which call skb_put_[data:zero]yuan linyu
Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16networking: introduce and use skb_put_data()Johannes Berg
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-01rsi: use subdirectory for firmware fileamit karwar
linux-firmware maintainers prefer to have a subdirectory for firmware files. Code is changed here to pick firmware file from a subdirectory. Firmware file with a new loading mechanism will be submitted inside rsi directory. Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: rsi_91x_core: Use time_after time comparisonKarim Eshapa
Use time_after kernel macro for time comparison. Signed-off-by: Karim Eshapa <karim.eshapa@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Remove old firmware loading methodPrameela Rani Garnepudi
The older firmware loading method is not usable by any Redpine chipset. Hence removing that part of the code. Older firmware image with rsi_91x.fw name is deprecated Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Add new firmware loading methodPrameela Rani Garnepudi
The older firmware loading method has been deprecated and not in use for any chipets. New method is introduced which works based on soft boot loader. In this method, complete RAM image and FLASH image are present in the flash. Before loading the functional firmware, host issues boot loader commands to verify whether firmware to load is different from the current functional firmware. If not, firmware upgrade progresses and boot loader will switch to the new functional firmware. "rs9113_wlan_qspi.rps" is the firmware filename used in this patch. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Add new host interface operationsPrameela Rani Garnepudi
Host interface opearation master_reg_read, master_reg_write and load_data_master_write are added. These functions are needed for the new firmware loading method. As part of this, the function master_access_msword is moved from rsi_91x_sdio_ops.c to rsi_91x_sdio.c. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Add host interface operations as separate structure.Prameela Rani Garnepudi
Host interface operations are currently function pointers in rsi_hw structure. As more host interface operations are going to be introduced, separate structure is added for these for convenience. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Add usb multi-byte read operationPrameela Rani Garnepudi
USB multibyte read will be used in the new firmware loading method for RS9113 chipset. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Handle usb multi-byte write failure case properlyPrameela Rani Garnepudi
In function usb_write_register_multiple, if any intermediate block transfer is failed, further operations should be terminated. 'else' is removed, as there is no significance for it after return. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: use macros in USB specific codePrameela Rani Garnepudi
For USB vendor read and write operations new macros added to avoid redundant usage of long or'ed macros. Also for timeouts standard USB macros are used. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: Changes in USB read and write operationsPrameela Rani Garnepudi
USB read and write registers maximum size is limited 2^16. More than this size is not used in the driver. Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com> Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-05-24rsi: define RSI_USB_BUF_SIZE macroamit karwar
RSI_USB_BUF_SIZE macro is used instead of hardcoding a buffer size to 4096. Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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