linux-stable.git/drivers/bus, branch v5.4.23

bus: ti-sysc: Implement quirk handling for CLKDM_NOAUTO

2020-02-24T07:36:35+00:00

[ Upstream commit 94f6345712b37e4bb23cb265ce4c65b9d177e75a ]

For dra7 dcan and dwc3 instances we need to block clockdomain autoidle.
Let's do this with CLKDM_NOAUTO quirk flag and enable it for dcan and
dwc3.

Cc: Keerthy 
Cc: Roger Quadros 
Cc: Tero Kristo 
Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin

bus: moxtet: fix potential stack buffer overflow

2020-02-19T18:53:04+00:00

commit 3bf3c9744694803bd2d6f0ee70a6369b980530fd upstream.

The input_read function declares the size of the hex array relative to
sizeof(buf), but buf is a pointer argument of the function. The hex
array is meant to contain hexadecimal representation of the bin array.

Link: https://lore.kernel.org/r/20200215142130.22743-1-marek.behun@nic.cz
Fixes: 5bc7f990cd98 ("bus: Add support for Moxtet bus")
Signed-off-by: Marek Behún 
Reported-by: sohu0106 
Signed-off-by: Olof Johansson 
Signed-off-by: Greg Kroah-Hartman

bus: ti-sysc: Fix missing force mstandby quirk handling

2020-02-01T09:34:51+00:00

[ Upstream commit 93c60483b5feefced92b869d5f97769495bc6313 ]

Commit 03856e928b0e ("bus: ti-sysc: Handle mstandby quirk and use it for
musb") added quirk handling for mstandby quirk but did not consider that
we also need a quirk variant for SYSC_QUIRK_FORCE_MSTANDBY.

We need to use forced idle mode for both SYSC_QUIRK_SWSUP_MSTANDBY and
SYSC_QUIRK_FORCE_MSTANDBY, but SYSC_QUIRK_SWSUP_MSTANDBY also need to
additionally also configure no-idle mode when enabled.

Fixes: 03856e928b0e ("bus: ti-sysc: Handle mstandby quirk and use it for musb")
Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin

bus: ti-sysc: Add module enable quirk for audio AESS

2020-02-01T09:34:50+00:00

[ Upstream commit 020003f763e24e4ed0bb3d8909f3940891536d5d ]

We must set the autogating bit on enable for AESS (Audio Engine SubSystem)
when probed with ti-sysc interconnect target module driver. Otherwise it
won't idle properly.

Cc: Peter Ujfalusi 
Tested-by: Peter Ujfalusi 
Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin

bus: ti-sysc: Use swsup quirks also for am335x musb

2020-02-01T09:34:48+00:00

[ Upstream commit 1819ef2e2d12d5b1a6ee54ac1c2afe35cffc677c ]

Also on am335x we need the swsup quirks for musb.

Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin

bus: ti-sysc: Handle mstandby quirk and use it for musb

2020-02-01T09:34:48+00:00

[ Upstream commit 03856e928b0e1a1c274eece1dfe4330a362c37f3 ]

We need swsup quirks for sidle and mstandby for musb to work
properly.

Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin

bus: ti-sysc: Fix iterating over clocks

2020-01-23T07:22:28+00:00

commit 2c81f0f6d3f52ac222a5dc07a6e5c06e1543e88b upstream.

Commit d878970f6ce1 ("bus: ti-sysc: Add separate functions for handling
clocks") separated handling of optional clocks from the main clocks, but
introduced an issue where we do not necessarily allocate a slot for both
fck and ick clocks, but still assume fixed slots for enumerating over the
clocks.

Let's fix the issue by ensuring we always have slots for both fck and ick
even if we don't use ick, and don't attempt to enumerate optional clocks
if not allocated.

In the long run we might want to simplify things a bit by only allocating
space only for the optional clocks as we have only few devices with
optional clocks.

Fixes: d878970f6ce1 ("bus: ti-sysc: Add separate functions for handling clocks")
Signed-off-by: Tony Lindgren 
Signed-off-by: Greg Kroah-Hartman

bus: ti-sysc: Fix missing reset delay handling

2020-01-12T11:21:27+00:00

[ Upstream commit e709ed70d122e94cb426b1e1f905829eae19a009 ]

We have dts property for "ti,sysc-delay-us", and we're using it, but the
wait after OCP softreset only happens if devices are probed in legacy mode.

Let's add a delay after writing the OCP softreset when specified.

Fixes: e0db94fe87da ("bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits")
Cc: Keerthy 
Signed-off-by: Tony Lindgren 
Signed-off-by: Sasha Levin

bus: ti-sysc: Fix watchdog quirk handling

2019-10-18T15:45:32+00:00

I noticed that when probed with ti-sysc, watchdog can trigger on am3, am4
and dra7 causing a device reset.

Turns out I made several mistakes implementing the watchdog quirk handling:

1. We must do both writes to spr register

2. We must also call the reset quirk on disable

3. On am3 and am4 we need to also set swsup quirk flag

I probably only tested this earlier with watchdog service running when the
watchdog never gets disabled.

Fixes: 4e23be473e30 ("bus: ti-sysc: Add support for module specific reset quirks")
Signed-off-by: Tony Lindgren

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2019-09-30T17:04:28+00:00

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes that have trickled in through the merge window:

   - Video fixes for OMAP due to panel-dpi driver removal

   - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7

   - Fixing arch version on ASpeed ast2500

   - Two fixes for reset handling on ARM SCMI"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: aspeed: ast2500 is ARMv6K
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks