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Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.
coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().
sprintf() will be converted as weel if they have.
Generally, this patch is generated by
make coccicheck M=<path/to/file> MODE=patch \
COCCI=scripts/coccinelle/api/device_attr_show.cocci
No functional change intended
CC: Kalle Valo <kvalo@kernel.org>
CC: Jeff Johnson <jjohnson@kernel.org>
CC: linux-wireless@vger.kernel.org
CC: ath11k@lists.infradead.org
CC: ath10k@lists.infradead.org
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240315055211.1347548-1-lizhijian@fujitsu.com
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Every time the firmware boots we call ath11k_core_qmi_firmware_ready() which
ends up calling ath11k_thermal_register(). So we try to register thermal
devices multiple times. And when we power off the firmware during
suspend/hibernation (implemented in the next patch) we get a warning in resume:
hwmon hwmon4: PM: parent phy0 should not be sleeping
Workaround this similarly like ath11k_mac_register() does by testing
ATH11K_FLAG_REGISTERED.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://msgid.link/20240221024725.10057-6-quic_bqiang@quicinc.com
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Update the copyright for all ath11k files modified on behalf of
Qualcomm Innovation Center, Inc. in 2021 through 2023.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20231128-ath12kcopyrights-v1-2-be0b7408cbac@quicinc.com
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In PCI, thermal and HAL interface layer module, the identifier
sc is used to represent an instance of ath11k_base structure.
However, within ath11k, the convention is to use "ab" to
represent an SoC "base" struct. So change the all instances
of sc to ab.
Compile tested only.
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20231014032650.32605-3-quic_periyasa@quicinc.com
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Fix misspellings flagged by 'codespell'.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220909145535.20437-1-quic_jjohnson@quicinc.com
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The only usage of ath11k_thermal_ops is to pass its address to
thermal_cooling_device_register() which takes a const pointer. Make it
const to allow the compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If 'thermal_cooling_device_register()' fails, we must undo what has been
allocated so far. So we must go to 'err_thermal_destroy' instead of
returning directly
In case of error in 'ath11k_thermal_register()', the previous
'thermal_cooling_device_register()' call must also be undone. Move the
'ar->thermal.cdev = cdev' a few lines above in order for this to be done
in 'ath11k_thermal_unregister()' which is called in the error handling
path.
Fixes: 2a63bbca06b2 ("ath11k: add thermal cooling device support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200513201454.258111-1-christophe.jaillet@wanadoo.fr
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Temperature sensor generates electrical analog voltage from temperature
of each chain. The analog voltage is converted to digital value through
ADC. For reading temperature values fom user space, hw monitoring device
is used.
Whenever the user requests for current temperature, the driver sends WMI
command and wait for response. For reading temperature,
cat /sys/class/ieee80211/phy*/device/hwmon/hwmon2/temp1_input
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Thermal cooling device support is added to control the temperature by
throttling the data transmission for the given duration. Throttling is
done by suspending all data tx queues by given percentage of time. The
thermal device allows user to configure duty cycle.
Throttling can be disabled by setting the duty cycle to 0. The cooling
device can be found under /sys/class/thermal/cooling_deviceX/.
Corresponding soft link to this device can be found under phy folder.
/sys/class/ieee80211/phy*/device/cooling_device.
To set duty cycle as 40%,
echo 40 >/sys/class/ieee80211/phy*/device/cooling_device/cur_state
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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