linux-stable.git/drivers/soc, branch v6.6.2

soc: qcom: pmic_glink: fix connector type to be DisplayPort

2023-11-20T10:59:17+00:00

[ Upstream commit f86955f2b1ff9fbc7ae4f6595112b2f896885366 ]

As it was pointed out by Simon Ser, the DRM_MODE_CONNECTOR_USB connector
is reserved for the GUD devices. Other drivers (i915, amdgpu) use
DRM_MODE_CONNECTOR_DisplayPort even if the DP stream is handled by the
USB-C altmode. While we are still working on implementing the proper way
to let userspace know that the DP is wrapped into USB-C, change
connector type to be DRM_MODE_CONNECTOR_DisplayPort.

Fixes: 080b4e24852b ("soc: qcom: pmic_glink: Introduce altmode support")
Cc: Simon Ser 
Signed-off-by: Dmitry Baryshkov 
Reviewed-by: Neil Armstrong 
Acked-by: Simon Ser 
Link: https://lore.kernel.org/r/20231010225229.77027-1-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson 
Signed-off-by: Sasha Levin

soc: qcom: llcc: Handle a second device without data corruption

2023-11-20T10:59:15+00:00

[ Upstream commit f1a1bc8775b26345aba2be278118999e7f661d3d ]

Usually there is only one llcc device. But if there were a second, even
a failed probe call would modify the global drv_data pointer. So check
if drv_data is valid before overwriting it.

Signed-off-by: Uwe Kleine-König 
Fixes: a3134fb09e0b ("drivers: soc: Add LLCC driver")
Link: https://lore.kernel.org/r/20230926083229.2073890-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Bjorn Andersson 
Signed-off-by: Sasha Levin

Merge tag 'renesas-fixes-for-v6.6-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

2023-10-26T15:06:42+00:00

Renesas fixes for v6.6 (take three)

  - Sort out a few Kconfig dependency issues for the rich set of RISC-V
    non-coherent DMA support.

* tag 'renesas-fixes-for-v6.6-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: ARCH_R9A07G043 depends on !RISCV_ISA_ZICBOM
  riscv: only select DMA_DIRECT_REMAP from RISCV_ISA_ZICBOM and ERRATA_THEAD_PBMT
  riscv: RISCV_NONSTANDARD_CACHE_OPS shouldn't depend on RISCV_DMA_NONCOHERENT

Link: https://lore.kernel.org/r/cover.1698312384.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann

soc: renesas: ARCH_R9A07G043 depends on !RISCV_ISA_ZICBOM

2023-10-26T07:42:38+00:00

ARCH_R9A07G043 has its own non-standard global pool based DMA coherent
allocator, which conflicts with the remap based RISCV_ISA_ZICBOM version.
Add a proper dependency.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Lad Prabhakar 
Acked-by: Conor Dooley 
Acked-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20231018052654.50074-4-hch@lst.de
Signed-off-by: Geert Uytterhoeven

Merge tag 'renesas-fixes-for-v6.6-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

2023-10-16T14:16:39+00:00

Renesas fixes for v6.6 (take two)

  - Fix build failures due to missing RZ/Five dependencies.

* tag 'renesas-fixes-for-v6.6-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: Make ARCH_R9A07G043 depend on required options

Link: https://lore.kernel.org/r/cover.1697199963.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann

Merge tag 'soc-fixes-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-10-12T18:52:23+00:00

Pull ARM SoC fixes from Arnd Bergmann:
 "AngeloGioacchino Del Regno is stepping in as co-maintainer for the
  MediaTek SoC platform and starts by sending some dts fixes for the
  mt8195 platform that had been pending for a while.

  On the ixp4xx platform, Krzysztof Halasa steps down as co-maintainer,
  reflecting that Linus Walleij has been handling this on his own for
  the past few years.

  Generic RISC-V kernels are now marked as incompatible with the RZ/Five
  platform that requires custom hacks both for managing its DMA bounce
  buffers and for addressing low virtual memory.

 Finally, there is one bugfix for the AMDTEE firmware driver to prevent
 a use-after-free bug"

* tag 'soc-fixes-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  IXP4xx MAINTAINERS entries
  arm64: dts: mediatek: mt8195: Set DSU PMU status to fail
  arm64: dts: mediatek: fix t-phy unit name
  arm64: dts: mediatek: mt8195-demo: update and reorder reserved memory regions
  arm64: dts: mediatek: mt8195-demo: fix the memory size to 8GB
  MAINTAINERS: Add Angelo as MediaTek SoC co-maintainer
  soc: renesas: Make ARCH_R9A07G043 (riscv version) depend on NONPORTABLE
  tee: amdtee: fix use-after-free vulnerability in amdtee_close_session

soc: renesas: Make ARCH_R9A07G043 depend on required options

2023-10-12T17:46:49+00:00

Randy reported a randconfig build issue against linux-next:

    WARNING: unmet direct dependencies detected for ERRATA_ANDES
      Depends on [n]: RISCV_ALTERNATIVE [=n] && RISCV_SBI [=y]
      Selected by [y]:
      - ARCH_R9A07G043 [=y] && SOC_RENESAS [=y] && RISCV [=y] && NONPORTABLE [=y] && RISCV_SBI [=y]

    ../arch/riscv/errata/andes/errata.c:59:54: warning: 'struct alt_entry' declared inside parameter list will not be visible outside of this definition or declaration
       59 | void __init_or_module andes_errata_patch_func(struct alt_entry *begin, struct alt_entry *end,

On RISC-V, alternatives are not usable in XIP kernels, which this
randconfig happened to select.  Rather than add a check for whether
alternatives are available before selecting the ERRATA_ANDES config
option, rework the R9A07G043 Kconfig entry to depend on the
configuration options required to support its non-standard cache
coherency implementation.

Without these options enabled, the SoC is effectively non-functional to
begin with, so there's an extra benefit in preventing the creation of
non-functional kernels.

The "if RISCV_DMA_NONCOHERENT" can be dropped, as ERRATA_ANDES_CMO will
select it.

Reported-by: Randy Dunlap 
Closes: https://lore.kernel.org/all/09a6b0f0-76a1-45e3-ab52-329c47393d1d@infradead.org/
Signed-off-by: Conor Dooley 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20231012-pouch-parkway-7d26c04b3300@spud
Signed-off-by: Geert Uytterhoeven

soc: renesas: Make ARCH_R9A07G043 (riscv version) depend on NONPORTABLE

2023-10-05T13:07:57+00:00

Drew found "CONFIG_DMA_GLOBAL_POOL=y causes ADMA buffer alloc to fail"
the log looks like:

    mmc0: Unable to allocate ADMA buffers - falling back to standard DMA

The logic is: generic riscv defconfig selects ARCH_RENESAS then
ARCH_R9A07G043 which selects DMA_GLOBAL_POOL, which assumes all
non-dma-coherent riscv platforms have a dma global pool, this assumption
seems not correct. And I believe DMA_GLOBAL_POOL should not be
selected by ARCH_SOCFAMILIY, instead, only ARCH under some specific
conditions can select it globaly, for example NOMMU ARM and so on,
because it's designed for special cases such as "nommu cases where
non-cacheable memory lives in a fixed place in the physical address
map" as pointed out by Robin.

Fix the issue by making ARCH_R9A07G043 (riscv version) depend on
NONPORTABLE, thus generic defconfig won't select ARCH_R9A07G043 by
default. And even for random config case, there will be less debug
effort once we see NONPORTABLE is enabled.

Reported-by: Drew Fustini 
Closes: https://lore.kernel.org/linux-riscv/ZRuamJuShOnvP1pr@x1/
Fixes: 484861e09f3e ("soc: renesas: Kconfig: Select the required configs for RZ/Five SoC")
Signed-off-by: Jisheng Zhang 
Reviewed-by: Robin Murphy 
Reviewed-by: Lad Prabhakar 
Reviewed-by: Geert Uytterhoeven 
Tested-by: Drew Fustini 
Link: https://lore.kernel.org/r/20231004150856.2540-1-jszhang@kernel.org
Signed-off-by: Geert Uytterhoeven

soc: loongson: loongson2_guts: Remove unneeded semicolon

2023-09-27T09:05:47+00:00

No functional modification involved.

./drivers/soc/loongson/loongson2_guts.c:73:2-3: Unneeded semicolon.

Reviewed-by: Huacai Chen 
Signed-off-by: Mingtong Bao 
Signed-off-by: Arnd Bergmann

soc: loongson: loongson2_guts: Convert to devm_platform_ioremap_resource()

2023-09-27T09:05:47+00:00

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Dongliang Mu 
Signed-off-by: Binbin Zhou 
Signed-off-by: Arnd Bergmann