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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value because the
value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading the sysctl value
because the value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to protect the reader reading sysctl_netrom_default_path_quality
because the value can be changed concurrently.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Introduce mana_ib_create_dma_region() to create dma regions with iova
for MRs. It allows creating MRs with any page offset. Previously,
only page-aligned addresses worked.
For dma regions that must have a zero dma offset (e.g., for queues),
mana_ib_create_zero_offset_dma_region() is added.
To get the zero offset, ib_umem_find_best_pgoff() is used with zero
pgoff_bitmask.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1709560361-26393-3-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Use ib_umem_dma_offset() helper to calculate correct dma offset.
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1709560361-26393-2-git-send-email-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Chandan reported a AGI/AGF lock order hang on xfs/168 during recent
testing. The cause of the problem was the task running xfs_growfs
to shrink the filesystem. A failure occurred trying to remove the
free space from the btrees that the shrink would make disappear,
and that meant it ran the error handling for a partial failure.
This error path involves restoring the per-ag block reservations,
and that requires calculating the amount of space needed to be
reserved for the free inode btree. The growfs operation hung here:
[18679.536829] down+0x71/0xa0
[18679.537657] xfs_buf_lock+0xa4/0x290 [xfs]
[18679.538731] xfs_buf_find_lock+0xf7/0x4d0 [xfs]
[18679.539920] xfs_buf_lookup.constprop.0+0x289/0x500 [xfs]
[18679.542628] xfs_buf_get_map+0x2b3/0xe40 [xfs]
[18679.547076] xfs_buf_read_map+0xbb/0x900 [xfs]
[18679.562616] xfs_trans_read_buf_map+0x449/0xb10 [xfs]
[18679.569778] xfs_read_agi+0x1cd/0x500 [xfs]
[18679.573126] xfs_ialloc_read_agi+0xc2/0x5b0 [xfs]
[18679.578708] xfs_finobt_calc_reserves+0xe7/0x4d0 [xfs]
[18679.582480] xfs_ag_resv_init+0x2c5/0x490 [xfs]
[18679.586023] xfs_ag_shrink_space+0x736/0xd30 [xfs]
[18679.590730] xfs_growfs_data_private.isra.0+0x55e/0x990 [xfs]
[18679.599764] xfs_growfs_data+0x2f1/0x410 [xfs]
[18679.602212] xfs_file_ioctl+0xd1e/0x1370 [xfs]
trying to get the AGI lock. The AGI lock was held by a fstress task
trying to do an inode allocation, and it was waiting on the AGF
lock to allocate a new inode chunk on disk. Hence deadlock.
The fix for this is for the growfs code to hold the AGI over the
transaction roll it does in the error path. It already holds the AGF
locked across this, and that is what causes the lock order inversion
in the xfs_ag_resv_init() call.
Reported-by: Chandan Babu R <chandanbabu@kernel.org>
Fixes: 46141dc891f7 ("xfs: introduce xfs_ag_shrink_space()")
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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SCCC (SCC Context) is a context with QP granularity that contains
information about congestion control. Dump SCCC and QPC together
to improve troubleshooting.
When dumping raw QPC with rdmatool, there will be a total of 576 bytes
data output, where the first 512 bytes is QPC and the last 64 bytes is
SCCC. When congestion control is disabled, the 64 byte SCCC will be all 0.
Example:
$rdma res show qp -jpr
[ {
"ifindex": 0,
"ifname": "hns_0",
"data": [ 67,0,0,0... 512bytes
4,0,2... 64bytes]
},...
} ]
Signed-off-by: wenglianfa <wenglianfa@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Link: https://lore.kernel.org/r/20240305055257.823513-1-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Core code already prints detailed information about failure of memory
allocation.
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-7-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Code can be simpler: return directly when devm_gpiod_get_optional()
failed.
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-6-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Don't pollute dmesg on deferred probe and simplify the code with
dev_err_probe().
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-5-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Don't pollute dmesg on deferred probe and simplify the code with
dev_err_probe().
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-4-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Don't pollute dmesg on deferred probe and simplify the code with
dev_err_probe().
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-3-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-2-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240305-backlight-probe-v2-1-609b0cf24bde@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!
Fixes: c5a51053cf3b ("backlight: add new lp8788 backlight driver")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-4-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!
Fixes: 0f59858d5119 ("backlight: add new lm3639 backlight driver")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-3-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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props is stack allocated and the fields that are not explcitly set
by the probe function need to be zeroed or we'll get undefined behaviour
(especially so power/blank states)!
Fixes: 6ede3d832aaa ("backlight: add driver for DA9052/53 PMIC v1")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-2-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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As per documentation "drivers are expected to use this function in their
update_status() operation to get the brightness value.".
With this we can also drop the manual backlight_is_blank() handling
since backlight_get_brightness() is already handling this correctly.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-3-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@kernel.org>
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There's no need to set bl->props.brightness, the get_brightness function
is just supposed to return the current brightness and not touch the
struct.
With that done we can also remove the 'goto out' and just return the
value.
Fixes: 0c2a665a648e ("backlight: add Backlight driver for lm3630 chip")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-2-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@kernel.org>
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The backlight_properties struct should be initialized to zero before
using, otherwise there will be some random values in the struct.
Fixes: 0c2a665a648e ("backlight: add Backlight driver for lm3630 chip")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220-lm3630a-fixups-v1-1-9ca62f7e4a33@z3ntu.xyz
Signed-off-by: Lee Jones <lee@kernel.org>
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props is stack allocated and, although this driver initializes all the
fields that are not "owned" by the framework, we'd still like to ensure
it is zeroed to avoid problems from this driver if the fields change.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240220153532.76613-5-daniel.thompson@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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We have a temporary variable to keep pointer to struct device.
Utilise it where it makes sense.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Link: https://lore.kernel.org/r/20240208184313.2224579-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Replace dev_err() with dev_err_probe().
This helps in simplifing code and standardizing the error output.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240208184313.2224579-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Add mod_devicetable.h include.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240208184313.2224579-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Bjorn is no longer at Linaro. Update his email address to @kernel to
match the .mailmap entry.
The servers for @codeaurora are long retired and messages sent there
will bounce. Update Kiran's email address to match the .mailmap entry.
This will help anyone that is looking to reach out about this binding
and is not using .mailmap to pre-process their message.
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240202180151.4116329-1-quic_jhugo@quicinc.com
Signed-off-by: Lee Jones <lee@kernel.org>
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We have a temporary variable to keep pointer to struct device.
Utilise it inside the ->probe() implementation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240201144951.294215-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Simplify the error handling in probe function by switching from
dev_err() to dev_err_probe().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240201144951.294215-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Move OF table near to the user.
While at it, drop comma at terminator entry.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240201144951.294215-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Include mod_devicetable.h explicitly to replace the dropped of.h
which included mod_devicetable.h indirectly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240201144951.294215-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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pwm_apply_state() is deprecated since commit c748a6d77c06a ("pwm: Rename
pwm_apply_state() to pwm_apply_might_sleep()"). This is the final user
in the tree.
Signed-off-by: Sean Young <sean@mess.org>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240128154905.407302-1-sean@mess.org
Signed-off-by: Lee Jones <lee@kernel.org>
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of_property_read_u32 returns 0 when success, so reverse the
return value to get the true value.
Fixes: f8449c8f7355 ("backlight: ktz8866: Add support for Kinetic KTZ8866 backlight")
Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240129122829.16248-1-lujianhua000@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The "im" pins are optional. Add missing check in the hx8357_probe().
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/642e1230-3358-4006-a17f-3f297897ae74@moroto.mountain
Fixes: 7d84a63a39b7 ("backlight: hx8357: Convert to agnostic GPIO API")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240114143921.550736-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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To make the time macro defines clearer, add MS as a suffix.
Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Link: https://lore.kernel.org/r/20240305133824.1551809-1-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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NCP5623 is DC-DC multi-LEDs driver which has three PWMs that can be
programmed up to 32 steps giving 32768 colors hue.
NCP5623 driver supports gradual dimming upward/downward with programmable
delays. Also, the driver supports driving a single LED or multi-LED
like RGB.
Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Link: https://lore.kernel.org/r/20240305042049.1533279-2-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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NCP5623 is DC-DC multi-LED controller which can be used for RGB
illumination or backlight LCD display.
Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305042049.1533279-1-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Drop one struct member description to fix a kernel-doc warning:
drivers/leds/leds-mlxreg.c:42: warning: Excess struct member 'led_data' description in 'mlxreg_led_data'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-4-rdunlap@infradead.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Change "cled" to "cdev" to quieten kernel-doc warnings:
leds-mlxcpld.c:86: warning: Function parameter or struct member 'cdev' not described in 'mlxcpld_led_priv'
leds-mlxcpld.c:86: warning: Excess struct member 'cled' description in 'mlxcpld_led_priv'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-3-rdunlap@infradead.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Add a short struct description and remove one extraneous struct field
description to quieten these warnings:
leds-lm3601x.c:73: warning: missing initial short description on line:
* struct lm3601x_led -
leds-lm3601x.c:100: warning: Excess struct member 'led_name' description in 'lm3601x_led'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-2-rdunlap@infradead.org
Signed-off-by: Lee Jones <lee@kernel.org>
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gpio_led_register_device() is built whenever CONFIG_LEDS_GPIO_REGISTER is
enabled, and this may be used even when CONFIG_NEW_LEDS is turned off.
However, the stub declaration in the header is provided for all configs
without CONFIG_NEW_LEDS, resulting in a build failure:
drivers/leds/leds-gpio-register.c:24:1: error: redefinition of 'gpio_led_register_device'
24 | gpio_led_register_device(int id, const struct gpio_led_platform_data *pdata)
| ^
include/linux/leds.h:646:39: note: previous definition is here
Change the #ifdef check to match the definition.
Note: this apparently took years of randconfig builds to hit, since
a number of other drivers just 'select NEW_LEDS' anyway.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240228093834.2230004-1-arnd@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Only few variants support PPG and store LPG per-channel data and pattern
in SDAM modules. Disallow the nvmem for other variants to make the
binding precise.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240226073713.19045-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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"qcom,pm8550-pwm" is compatible with "qcom,pm8350c-pwm" (latter used as
fallback), thus it is enough for the "if:then:" clause to check for the
presence of the fallback "qcom,pm8350c-pwm".
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240226073713.19045-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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It's common for routers to have LED indicating link on the WAN port.
Some devices however have an extra LED that's meant to be used if WAN
connection is actually "online" (there is Internet access available).
It was suggested to add #define for such use case.
Link: https://lore.kernel.org/linux-devicetree/80e92209-5578-44e7-bd4b-603a29053ddf@collabora.com/T/#u
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240223112223.1368-1-zajec5@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Enabling strobe and then setting brightness to 0 causes the driver to enter
invalid state after strobe end timer fires. We should cancel strobe mode
resources when changing brightness (aka torch mode).
Fixes: cef8ec8cbd21 ("leds: add sgm3140 driver")
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20240217191133.1757553-1-megi@xff.cz
Signed-off-by: Lee Jones <lee@kernel.org>
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The ExpressWire library does not depend on NEW_LEDS and selecting it
from a subsystem other than LEDs may cause Kconfig warnings:
WARNING: unmet direct dependencies detected for LEDS_EXPRESSWIRE
Depends on [n]: NEW_LEDS [=n] && GPIOLIB [=y]
Selected by [y]:
- BACKLIGHT_KTD2801 [=y] && HAS_IOMEM [=y] && BACKLIGHT_CLASS_DEVICE [=y]
Move it out of the "if NEW_LEDS" block to allow selection from other
subsystems (in particular backlight) without raising this warning.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Closes: https://lore.kernel.org/20240212111819.936815-1-arnd@kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402161410.IG9I4odj-lkp@intel.com/
Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Fixes: 25ae5f5f4168 ("leds: Introduce ExpressWire library")
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Link: https://lore.kernel.org/r/20240216-expresswire-deps-v2-2-8be59c4a75f5@skole.hr
Signed-off-by: Lee Jones <lee@kernel.org>
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