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3 Commits

Author SHA1 Message Date
Tyler Hicks
dd2b1d70ef EDAC/dmc520: Don't print an error for each unconfigured interrupt line 
[ Upstream commit ad2df24732e8956a45a00894d2163c4ee8fb0e1f ]

The dmc520 driver requires that at least one interrupt line, out of the
ten possible, is configured. The driver prints an error and returns
-EINVAL from its .probe function if there are no interrupt lines
configured.

Don't print a KERN_ERR level message for each interrupt line that's
unconfigured as that can confuse users into thinking that there is an
error condition.

Before this change, the following KERN_ERR level messages would be
reported if only dram_ecc_errc and dram_ecc_errd were configured in the
device tree:

  dmc520 68000000.dmc: IRQ ram_ecc_errc not found
  dmc520 68000000.dmc: IRQ ram_ecc_errd not found
  dmc520 68000000.dmc: IRQ failed_access not found
  dmc520 68000000.dmc: IRQ failed_prog not found
  dmc520 68000000.dmc: IRQ link_err not
  dmc520 68000000.dmc: IRQ temperature_event not found
  dmc520 68000000.dmc: IRQ arch_fsm not found
  dmc520 68000000.dmc: IRQ phy_request not found

Fixes: 1088750d78 ("EDAC: Add EDAC driver for DMC520")
Reported-by: Sinan Kaya <okaya@kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220111163800.22362-1-tyhicks@linux.microsoft.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 2022-06-09 10:21:02 +02:00
Borislav Petkov
cc71740ee4 EDAC/dmc520: Assign the proper type to dimm->edac_mode 
commit 54607282fae6148641a08d81a6e0953b541249c7 upstream.

dimm->edac_mode contains values of type enum edac_type - not the
corresponding capability flags. Fix that.

Fixes: 1088750d78 ("EDAC: Add EDAC driver for DMC520")
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20210916085258.7544-1-bp@alien8.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-09-30 10:11:08 +02:00
Lei Wang
1088750d78 EDAC: Add EDAC driver for DMC520 
The driver supports error detection and correction on devices with an
ARM DMC-520 memory controller.

Signed-off-by: Lei Wang <leiwang_git@outlook.com>
Signed-off-by: Shiping Ji <shiping.linux@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lkml.kernel.org/r/83b48c70-dc06-d0d4-cae9-a2187fca628b@gmail.com
 2020-02-19 21:00:27 +01:00