linux-stable.git/arch/arm, branch v5.4.294 Linux kernel stable tree ARM: tegra: Switch DSI-B clock parent to PLLD on Tegra114 2025-06-04T12:32:31+00:00 Svyatoslav Ryhel clamor95@gmail.com 2025-02-26T10:56:11+00:00 b468b0d85f18069c6fd8bf8a645eff35b42c8c97 [ Upstream commit 2b3db788f2f614b875b257cdb079adadedc060f3 ] PLLD is usually used as parent clock for internal video devices, like DSI for example, while PLLD2 is used as parent for HDMI. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Link: https://lore.kernel.org/r/20250226105615.61087-3-clamor95@gmail.com Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 2b3db788f2f614b875b257cdb079adadedc060f3 ]

PLLD is usually used as parent clock for internal video devices, like
DSI for example, while PLLD2 is used as parent for HDMI.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Link: https://lore.kernel.org/r/20250226105615.61087-3-clamor95@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
ARM: Remove address checking for MMUless devices 2025-04-10T12:29:39+00:00 Yanjun Yang yangyj.ee@gmail.com 2024-06-11T10:09:47+00:00 0387a57cc918e73f1540adde52c7d26d3f4df7b6 commit 3ccea4784fddd96fbd6c4497eb28b45dab638c2a upstream. Commit 169f9102f9198b ("ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed()") added the function to check address before use. However, for devices without MMU, addr > TASK_SIZE will always fail. This patch move this function after the #ifdef CONFIG_MMU statement. Signed-off-by: Yanjun Yang <yangyj.ee@gmail.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218953 Fixes: 169f9102f9198b ("ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed()") Link: https://lore.kernel.org/r/20240611100947.32241-1-yangyj.ee@gmail.com Signed-off-by: Kees Cook <kees@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 3ccea4784fddd96fbd6c4497eb28b45dab638c2a upstream.

Commit 169f9102f9198b ("ARM: 9350/1: fault: Implement
copy_from_kernel_nofault_allowed()") added the function to check address
before use. However, for devices without MMU, addr > TASK_SIZE will
always fail.  This patch move this function after the #ifdef CONFIG_MMU
statement.

Signed-off-by: Yanjun Yang <yangyj.ee@gmail.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218953
Fixes: 169f9102f9198b ("ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed()")
Link: https://lore.kernel.org/r/20240611100947.32241-1-yangyj.ee@gmail.com
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ARM: 9351/1: fault: Add "cut here" line for prefetch aborts 2025-04-10T12:29:38+00:00 Kees Cook keescook@chromium.org 2024-02-01T17:32:23+00:00 1c078dadb41c1e883a89b2e88049ce3c7d28ad51 commit 8f09b8b4fa58e99cbfd9a650b31d65cdbd8e4276 upstream. The common pattern in arm is to emit a "8<--- cut here ---" line for faults, but it was missing for do_PrefetchAbort(). Add it. Cc: Wang Kefeng <wangkefeng.wang@huawei.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 8f09b8b4fa58e99cbfd9a650b31d65cdbd8e4276 upstream.

The common pattern in arm is to emit a "8<--- cut here ---" line for
faults, but it was missing for do_PrefetchAbort(). Add it.

Cc: Wang Kefeng <wangkefeng.wang@huawei.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed() 2025-04-10T12:29:38+00:00 Kees Cook keescook@chromium.org 2024-02-01T17:32:58+00:00 11bb05969b19050a0f9baa6bcd1cb23439b267e3 commit 169f9102f9198b04afffa6164372a4ba4070f412 upstream. Under PAN emulation when dumping backtraces from things like the LKDTM EXEC_USERSPACE test[1], a double fault (which would hang a CPU) would happen because of dump_instr() attempting to read a userspace address. Make sure copy_from_kernel_nofault() does not attempt this any more. Closes: https://lava.sirena.org.uk/scheduler/job/497571 Link: https://lore.kernel.org/all/202401181125.D48DCB4C@keescook/ [1] Reported-by: Mark Brown <broonie@kernel.org> Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Mark Brown <broonie@kernel.org> Cc: Wang Kefeng <wangkefeng.wang@huawei.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 169f9102f9198b04afffa6164372a4ba4070f412 upstream.

Under PAN emulation when dumping backtraces from things like the
LKDTM EXEC_USERSPACE test[1], a double fault (which would hang a CPU)
would happen because of dump_instr() attempting to read a userspace
address. Make sure copy_from_kernel_nofault() does not attempt this
any more.

Closes: https://lava.sirena.org.uk/scheduler/job/497571
Link: https://lore.kernel.org/all/202401181125.D48DCB4C@keescook/ [1]

Reported-by: Mark Brown <broonie@kernel.org>
Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Mark Brown <broonie@kernel.org>
Cc: Wang Kefeng <wangkefeng.wang@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ARM: shmobile: smp: Enforce shmobile_smp_* alignment 2025-04-10T12:29:38+00:00 Geert Uytterhoeven geert+renesas@glider.be 2025-03-10T13:12:20+00:00 8310e6a1c93d0c529beace1ba4b34fa743a8835c commit 379c590113ce46f605439d4887996c60ab8820cc upstream. When the addresses of the shmobile_smp_mpidr, shmobile_smp_fn, and shmobile_smp_arg variables are not multiples of 4 bytes, secondary CPU bring-up fails: smp: Bringing up secondary CPUs ... CPU1: failed to come online CPU2: failed to come online CPU3: failed to come online smp: Brought up 1 node, 1 CPU Fix this by adding the missing alignment directive. Fixes: 4e960f52fce16a3b ("ARM: shmobile: Move shmobile_smp_{mpidr, fn, arg}[] from .text to .bss") Closes: https://lore.kernel.org/r/CAMuHMdU=QR-JLgEHKWpsr6SbaZRc-Hz9r91JfpP8c3n2G-OjqA@mail.gmail.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/c499234d559a0d95ad9472883e46077311051cd8.1741612208.git.geert+renesas@glider.be Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 379c590113ce46f605439d4887996c60ab8820cc upstream.

When the addresses of the shmobile_smp_mpidr, shmobile_smp_fn, and
shmobile_smp_arg variables are not multiples of 4 bytes, secondary CPU
bring-up fails:

    smp: Bringing up secondary CPUs ...
    CPU1: failed to come online
    CPU2: failed to come online
    CPU3: failed to come online
    smp: Brought up 1 node, 1 CPU

Fix this by adding the missing alignment directive.

Fixes: 4e960f52fce16a3b ("ARM: shmobile: Move shmobile_smp_{mpidr, fn, arg}[] from .text to .bss")
Closes: https://lore.kernel.org/r/CAMuHMdU=QR-JLgEHKWpsr6SbaZRc-Hz9r91JfpP8c3n2G-OjqA@mail.gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/c499234d559a0d95ad9472883e46077311051cd8.1741612208.git.geert+renesas@glider.be
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ARM: dts: mediatek: mt7623: fix IR nodename 2025-03-13T11:42:57+00:00 Rafał Miłecki rafal@milecki.pl 2024-06-17T09:46:33+00:00 e87fee8392b2ffd0b3441c7d4f2cb31e3a484f3a [ Upstream commit 90234cf9b37c57201a24b78c217a91a8af774109 ] Fix following validation error: arch/arm/boot/dts/mediatek/mt7623a-rfb-emmc.dtb: cir@10013000: $nodename:0: 'cir@10013000' does not match '^ir(-receiver)?(@[a-f0-9]+)?$' from schema $id: http://devicetree.org/schemas/media/mediatek,mt7622-cir.yaml# Fixes: 91044f38dae7 ("arm: dts: mt7623: add ir nodes to the mt7623.dtsi file") Cc: linux-media@vger.kernel.org Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20240617094634.23173-1-zajec5@gmail.com Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 90234cf9b37c57201a24b78c217a91a8af774109 ]

Fix following validation error:
arch/arm/boot/dts/mediatek/mt7623a-rfb-emmc.dtb: cir@10013000: $nodename:0: 'cir@10013000' does not match '^ir(-receiver)?(@[a-f0-9]+)?$'
        from schema $id: http://devicetree.org/schemas/media/mediatek,mt7622-cir.yaml#

Fixes: 91044f38dae7 ("arm: dts: mt7623: add ir nodes to the mt7623.dtsi file")
Cc: linux-media@vger.kernel.org
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20240617094634.23173-1-zajec5@gmail.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
ARM: dts: cubieboard4: Fix DCDC5 regulator constraints 2024-12-14T18:44:24+00:00 Andre Przywara andre.przywara@arm.com 2024-10-07T22:29:16+00:00 a6e1387e9f549d7adc357185d3a3d272a2da6a4e [ Upstream commit dd36ad71ad65968f97630808bc8d605c929b128e ] The DCDC5 voltage rail in the X-Powers AXP809 PMIC has a resolution of 50mV, so the currently enforced limits of 1.475 and 1.525 volts cannot be set, when the existing regulator value is beyond this range. This will lead to the whole regulator driver to give up and fail probing, which in turn will hang the system, as essential devices depend on the PMIC. In this case a bug in U-Boot set the voltage to 1.75V (meant for DCDC4), and the AXP driver's attempt to correct this lead to this error: ================== [ 4.447653] axp20x-rsb sunxi-rsb-3a3: AXP20X driver loaded [ 4.450066] vcc-dram: Bringing 1750000uV into 1575000-1575000uV [ 4.460272] vcc-dram: failed to apply 1575000-1575000uV constraint: -EINVAL [ 4.474788] axp20x-regulator axp20x-regulator.0: Failed to register dcdc5 [ 4.482276] axp20x-regulator axp20x-regulator.0: probe with driver axp20x-regulator failed with error -22 ================== Set the limits to values that can be programmed, so any correction will be successful. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Fixes: 1e1dea72651b ("ARM: dts: sun9i: cubieboard4: Add AXP809 PMIC device node and regulators") Link: https://patch.msgid.link/20241007222916.19013-1-andre.przywara@arm.com Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit dd36ad71ad65968f97630808bc8d605c929b128e ]

The DCDC5 voltage rail in the X-Powers AXP809 PMIC has a resolution of
50mV, so the currently enforced limits of 1.475 and 1.525 volts cannot
be set, when the existing regulator value is beyond this range.

This will lead to the whole regulator driver to give up and fail
probing, which in turn will hang the system, as essential devices depend
on the PMIC.
In this case a bug in U-Boot set the voltage to 1.75V (meant for DCDC4),
and the AXP driver's attempt to correct this lead to this error:
==================
[    4.447653] axp20x-rsb sunxi-rsb-3a3: AXP20X driver loaded
[    4.450066] vcc-dram: Bringing 1750000uV into 1575000-1575000uV
[    4.460272] vcc-dram: failed to apply 1575000-1575000uV constraint: -EINVAL
[    4.474788] axp20x-regulator axp20x-regulator.0: Failed to register dcdc5
[    4.482276] axp20x-regulator axp20x-regulator.0: probe with driver axp20x-regulator failed with error -22
==================

Set the limits to values that can be programmed, so any correction will
be successful.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Fixes: 1e1dea72651b ("ARM: dts: sun9i: cubieboard4: Add AXP809 PMIC device node and regulators")
Link: https://patch.msgid.link/20241007222916.19013-1-andre.przywara@arm.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
ARM: dts: rockchip: Fix the realtek audio codec on rk3036-kylin 2024-11-17T13:58:50+00:00 Heiko Stuebner heiko@sntech.de 2024-10-08T20:39:40+00:00 1e635487b0250d401e4420384334e02dd7dd3f24 [ Upstream commit 77a9a7f2d3b94d29d13d71b851114d593a2147cf ] Both the node name as well as the compatible were not named according to the binding expectations, fix that. Fixes: 47bf3a5c9e2a ("ARM: dts: rockchip: add the sound setup for rk3036-kylin board") Cc: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Dragan Simic <dsimic@manjaro.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20241008203940.2573684-15-heiko@sntech.de Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 77a9a7f2d3b94d29d13d71b851114d593a2147cf ]

Both the node name as well as the compatible were not named
according to the binding expectations, fix that.

Fixes: 47bf3a5c9e2a ("ARM: dts: rockchip: add the sound setup for rk3036-kylin board")
Cc: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20241008203940.2573684-15-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
ARM: dts: rockchip: Fix the spi controller on rk3036 2024-11-17T13:58:50+00:00 Heiko Stuebner heiko@sntech.de 2024-10-08T20:39:39+00:00 18f4ca39c6f4eccb91d30f047e9089b1bf4984d4 [ Upstream commit 8bade1ad1f0821aef31f6a8fb1027ae292566d85 ] Compatible and clock names did not match the existing binding. So set the correct values and re-order+rename the clocks. It looks like no rk3036 board did use the spi controller so far, so this was never detected on a running device yet. Fixes: f629fcfab2cd ("ARM: dts: rockchip: support the spi for rk3036") Cc: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Dragan Simic <dsimic@manjaro.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20241008203940.2573684-14-heiko@sntech.de Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 8bade1ad1f0821aef31f6a8fb1027ae292566d85 ]

Compatible and clock names did not match the existing binding.
So set the correct values and re-order+rename the clocks.

It looks like no rk3036 board did use the spi controller so far,
so this was never detected on a running device yet.

Fixes: f629fcfab2cd ("ARM: dts: rockchip: support the spi for rk3036")
Cc: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20241008203940.2573684-14-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
ARM: dts: rockchip: drop grf reference from rk3036 hdmi 2024-11-17T13:58:50+00:00 Heiko Stuebner heiko@sntech.de 2024-10-08T20:39:38+00:00 a10fa5624babe4a560acb5ea5fc74ba1c22c0850 [ Upstream commit 1580ccb6ed9dc76b8ff3e2d8912e8215c8b0fa6d ] Neither the binding nor the driver implementation specify/use the grf reference provided in the rk3036. And neither does the newer rk3128 user of the hdmi controller. So drop the rockchip,grf property. Fixes: b7217cf19c63 ("ARM: dts: rockchip: add hdmi device node for rk3036") Cc: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Dragan Simic <dsimic@manjaro.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20241008203940.2573684-13-heiko@sntech.de Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 1580ccb6ed9dc76b8ff3e2d8912e8215c8b0fa6d ]

Neither the binding nor the driver implementation specify/use the grf
reference provided in the rk3036. And neither does the newer rk3128
user of the hdmi controller. So drop the rockchip,grf property.

Fixes: b7217cf19c63 ("ARM: dts: rockchip: add hdmi device node for rk3036")
Cc: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20241008203940.2573684-13-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>