kernel/git/stable/linux.git/drivers/fpga, branch linux-5.7.y

fpga: dfl: fix bug in port reset handshake

2020-07-29T08:19:41+00:00

[ Upstream commit 8614afd689df59d9ce019439389be20bd788a897 ] When putting the port in reset, driver must wait for the soft reset acknowledgment bit instead of the soft reset bit. Fixes: 47c1b19c160f (fpga: dfl: afu: add port ops support) Signed-off-by: Matthew Gerlach Signed-off-by: Xu Yilun Acked-by: Wu Hao Reviewed-by: Tom Rix Signed-off-by: Moritz Fischer Signed-off-by: Sasha Levin

fpga: dfl: pci: reduce the scope of variable 'ret'

2020-07-29T08:19:40+00:00

[ Upstream commit e19485dc7a0d210b428a249c0595769bd495fb71 ] This is to fix lkp cppcheck warnings: drivers/fpga/dfl-pci.c:230:6: warning: The scope of the variable 'ret' can be reduced. [variableScope] int ret = 0; ^ drivers/fpga/dfl-pci.c:230:10: warning: Variable 'ret' is assigned a value that is never used. [unreadVariable] int ret = 0; ^ Fixes: 3c2760b78f90 ("fpga: dfl: pci: fix return value of cci_pci_sriov_configure") Reported-by: kbuild test robot Signed-off-by: Xu Yilun Acked-by: Wu Hao Reviewed-by: Tom Rix Signed-off-by: Moritz Fischer Signed-off-by: Sasha Levin

fpga: dfl: afu: Corrected error handling levels

2020-06-24T15:48:50+00:00

[ Upstream commit c9d7e3da1f3c4cf5dddfc5d7ce4d76d013aba1cc ] Corrected error handling goto sequnece. Level put_pages should be called when pinned pages >= 0 && pinned != npages. Level free_pages should be called when pinned pages < 0. Fixes: fa8dda1edef9 ("fpga: dfl: afu: add DFL_FPGA_PORT_DMA_MAP/UNMAP ioctls support") Signed-off-by: Souptick Joarder Acked-by: Wu Hao Reviewed-by: Xu Yilun Link: https://lore.kernel.org/r/1589825991-3545-1-git-send-email-jrdr.linux@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

fpga: dfl: pci: fix return value of cci_pci_sriov_configure

2020-03-31T03:45:30+00:00

pci_driver.sriov_configure should return negative value on error and number of enabled VFs on success. But now the driver returns 0 on success. The sriov configure still works but will cause a warning message: XX VFs requested; only 0 enabled This patch changes the return value accordingly. Cc: stable@vger.kernel.org Signed-off-by: Xu Yilun Signed-off-by: Wu Hao Signed-off-by: Moritz Fischer

fpga: zynq: Remove clk_get error message for probe defer

2020-03-31T03:45:21+00:00

In probe, the driver checks for devm_clk_get return and print error message in the failing case. However for -EPROBE_DEFER this message is confusing so avoid it. The similar change was done also by commit 28910cee898c ("fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer") Signed-off-by: Shubhrajyoti Datta Signed-off-by: Michal Simek Signed-off-by: Moritz Fischer

fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer

2020-01-10T20:51:56+00:00

In probe, the driver checks for devm_clk_get return and print error message in the failing case. However for -EPROBE_DEFER this message is confusing so avoid it. Signed-off-by: Shubhrajyoti Datta Signed-off-by: Michal Simek Signed-off-by: Moritz Fischer

fpga: remove redundant dev_err message

2020-01-03T04:57:34+00:00

devm_ioremap_resource already contains error message, so remove the redundant dev_err message Signed-off-by: Ding Xiang Signed-off-by: Moritz Fischer

fpga: dfl: afu: remove set but not used variable 'afu'

2020-01-03T04:46:43+00:00

Fixes gcc '-Wunused-but-set-variable' warning: drivers/fpga/dfl-afu-main.c: In function ‘afu_dev_destroy’: drivers/fpga/dfl-afu-main.c:816:18: warning: variable ‘afu’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Acked-by: Wu Hao Signed-off-by: yu kuai Signed-off-by: Moritz Fischer

fpga: dfl: fme: remove set but not used variable 'fme'

2020-01-03T04:45:31+00:00

Fixes gcc '-Wunused-but-set-variable' warning: drivers/fpga/dfl-fme-main.c: In function ‘fme_dev_destroy’: drivers/fpga/dfl-fme-main.c:678:18: warning: variable ‘fme’ set but not used [-Wunused-but-set-variable] It is never used and so can be removed. Acked-by: Wu Hao Signed-off-by: yu kuai Signed-off-by: Moritz Fischer

fpga: dfl: fme: add power management support

2019-10-17T02:18:27+00:00

This patch adds support for power management private feature under FPGA Management Engine (FME). This private feature driver registers a hwmon for power (power1_input), thresholds information, e.g. (power1_max / crit / max_alarm / crit_alarm) and also read-only sysfs interfaces for other power management information. For configuration, user could write threshold values via above power1_max / crit sysfs interface under hwmon too. Signed-off-by: Luwei Kang Signed-off-by: Xu Yilun Signed-off-by: Wu Hao Acked-by: Guenter Roeck Reviewed-by: Moritz Fischer Signed-off-by: Moritz Fischer