linux-stable.git/drivers/fpga, branch linux-5.14.y

fpga: ice40-spi: Add SPI device ID table

2021-10-20T09:57:52+00:00

commit 2a2a79577ddae7d5314b2f57ca86b44d794403d5 upstream.

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI ID table.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown 
Signed-off-by: Moritz Fischer 
Signed-off-by: Greg Kroah-Hartman

fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()

2021-09-30T08:13:01+00:00

[ Upstream commit a1e4470823d99e75b596748086e120dea169ed3c ]

The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'ret'.

Eliminate the follow smatch warning:

drivers/fpga/machxo2-spi.c:341 machxo2_write_complete()
  warn: missing error code 'ret'.

[mdf@kernel.org: Reworded commit message]
Fixes: 88fb3a002330 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
Reported-by: Abaci Robot 
Signed-off-by: Jiapeng Chong 
Signed-off-by: Moritz Fischer 
Signed-off-by: Sasha Levin

fpga: machxo2-spi: Return an error on failure

2021-09-30T08:13:01+00:00

[ Upstream commit 34331739e19fd6a293d488add28832ad49c9fc54 ]

Earlier successes leave 'ret' in a non error state, so these errors are
not reported. Set ret to -EINVAL before going to the error handler.

This addresses two issues reported by smatch:
drivers/fpga/machxo2-spi.c:229 machxo2_write_init()
  warn: missing error code 'ret'

drivers/fpga/machxo2-spi.c:316 machxo2_write_complete()
  warn: missing error code 'ret'

[mdf@kernel.org: Reworded commit message]
Fixes: 88fb3a002330 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
Reported-by: Dan Carpenter 
Signed-off-by: Tom Rix 
Signed-off-by: Moritz Fischer 
Signed-off-by: Sasha Levin

fpga: dfl: fme: Fix cpu hotplug issue in performance reporting

2021-07-27T18:05:16+00:00

The performance reporting driver added cpu hotplug
feature but it didn't add pmu migration call in cpu
offline function.
This can create an issue incase the current designated
cpu being used to collect fme pmu data got offline,
as based on current code we are not migrating fme pmu to
new target cpu. Because of that perf will still try to
fetch data from that offline cpu and hence we will not
get counter data.

Patch fixed this issue by adding pmu_migrate_context call
in fme_perf_offline_cpu function.

Fixes: 724142f8c42a ("fpga: dfl: fme: add performance reporting support")
Cc: stable@vger.kernel.org
Tested-by: Xu Yilun 
Acked-by: Wu Hao 
Signed-off-by: Kajol Jain 
Signed-off-by: Moritz Fischer

fpga: machxo2-spi: Address warning about unused variable

2021-06-24T13:45:11+00:00

Address warning about unused variable in case CONFIG_OF is not set.

warning: unused variable 'of_match' [-Wunused-const-variable]
    static const struct of_device_id of_match[] = {

Fixes: 88fb3a002330 ("fpga: lattice machxo2: Add Lattice MachXO2 support")
Cc: Arnd Bergmann 
Cc: Tom Rix 
Cc: Greg Kroah-Hartman 
Reported-by: Arnd Bergmann 
Signed-off-by: Moritz Fischer 
Link: https://lore.kernel.org/r/20210618224618.1487323-1-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman

fpga: region: Rename dev to parent for parent device

2021-06-15T07:29:55+00:00

Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight 
Reviewed-by: Xu Yilun 
Signed-off-by: Moritz Fischer 
Link: https://lore.kernel.org/r/20210614170909.232415-6-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman

fpga: bridge: Rename dev to parent for parent device

2021-06-15T07:29:45+00:00

Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight 
Reviewed-by: Xu Yilun 
Signed-off-by: Moritz Fischer 
Link: https://lore.kernel.org/r/20210614170909.232415-5-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman

fpga: mgr: Rename dev to parent for parent device

2021-06-15T07:29:35+00:00

Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight 
Reviewed-by: Xu Yilun 
Signed-off-by: Moritz Fischer 
Link: https://lore.kernel.org/r/20210614170909.232415-4-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman

fpga: stratix10-soc: Add missing fpga_mgr_free() call

2021-06-15T07:28:15+00:00

The stratix10-soc driver uses fpga_mgr_create() function and is therefore
responsible to call fpga_mgr_free() to release the class driver resources.
Add a missing call to fpga_mgr_free in the s10_remove() function.

Signed-off-by: Russ Weight 
Reviewed-by: Xu Yilun 
Signed-off-by: Moritz Fischer 
Fixes: e7eef1d7633a ("fpga: add intel stratix10 soc fpga manager driver")
Cc: stable 
Link: https://lore.kernel.org/r/20210614170909.232415-3-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman

fpga: altera-pr-ip: Remove function alt_pr_unregister

2021-06-15T07:27:35+00:00

Remove the alt_pr_unregister() function; it is no longer used.

Signed-off-by: Russ Weight 
Reviewed-by: Xu Yilun 
Signed-off-by: Moritz Fischer 
Link: https://lore.kernel.org/r/20210614170909.232415-2-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman