This reverts commits 55845f46df and c50031f03d, since this still
causes a build failure when QCOM_SCM is a loadable module, or when
CONFIG_SMP is disabled:
ERROR: modpost: "cpu_logical_map" [drivers/firmware/qcom-scm.ko] undefined!
This be done better for 5.17, but it's too late now to rework
properly.
Fixes: c50031f03d ("firmware: qcom: scm: Don't break compile test on non-ARM platforms")
Fixes: 55845f46df ("firmware: qcom: scm: Add support for MC boot address API")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM_QCOM_SPM_CPUIDLE can be selected when compile-testing on
other architectures, but this causes a Kconfig warning
for QCOM_SPM:
WARNING: unmet direct dependencies detected for QCOM_SPM
Depends on [n]: ARCH_QCOM [=n]
Selected by [y]:
- ARM_QCOM_SPM_CPUIDLE [=y] && CPU_IDLE [=y] && (ARM [=y] || ARM64) && (ARCH_QCOM [=n] || COMPILE_TEST [=y]) && !ARM64 && MMU [=y]
Make it possible to also compile-test this one, which can
be done now that v5.15-rc5 lets you select QCOM_SCM everywhere.
Fixes: a871be6b8e ("cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver")
Fixes: 498ba2a8a2 ("cpuidle: Fix ARM_QCOM_SPM_CPUIDLE configuration")
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Just couple of minor updates:
- Adding support for MEMORY_LEND API
- Handling compatibility with different firmware versions(especially
dealing with newer/higher versions than the one supported by the driver)
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Merge tag 'arm-ffa-updates-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers
Arm FF-A updates for v5.16
Just couple of minor updates:
- Adding support for MEMORY_LEND API
- Handling compatibility with different firmware versions(especially
dealing with newer/higher versions than the one supported by the driver)
* tag 'arm-ffa-updates-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_ffa: Remove unused 'compat_version' variable
firmware: arm_ffa: Add support for MEM_LEND
firmware: arm_ffa: Handle compatibility with different firmware versions
firmware: arm_ffa: Fix __ffa_devices_unregister
firmware: arm_ffa: Add missing remove callback to ffa_bus_type
Link: https://lore.kernel.org/r/20211026141535.1920602-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This introduces the Qualcomm "sleep stats" driver, which aids the
efforts of bringing various Qualcomm platforms into low power mode.
The SMP2P driver gains support for negotiating the "SSR" feature, which
is used to better synchronize some corner cases that might appear as the
remoteproc is recovering from a crash.
The socinfo driver learns about a few new PMICs.
SMEM is updated so that it's possible to put the compatible property
directly in the reserved-memory node, to avoid having to have a separate
node just pointing to the memory-region.
Lastly it fixes some bugs in smp2p, apr, rpmhpd drivers, notably
avoiding the issue where powering on a power-domain using rpmhpd while
keeping the performance_state at 0 is a nop
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Merge tag 'qcom-drivers-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
More Qualcomm driver updates for v5.16
This introduces the Qualcomm "sleep stats" driver, which aids the
efforts of bringing various Qualcomm platforms into low power mode.
The SMP2P driver gains support for negotiating the "SSR" feature, which
is used to better synchronize some corner cases that might appear as the
remoteproc is recovering from a crash.
The socinfo driver learns about a few new PMICs.
SMEM is updated so that it's possible to put the compatible property
directly in the reserved-memory node, to avoid having to have a separate
node just pointing to the memory-region.
Lastly it fixes some bugs in smp2p, apr, rpmhpd drivers, notably
avoiding the issue where powering on a power-domain using rpmhpd while
keeping the performance_state at 0 is a nop
* tag 'qcom-drivers-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
firmware: qcom: scm: Don't break compile test on non-ARM platforms
soc: qcom: smp2p: Add of_node_put() before goto
soc: qcom: apr: Add of_node_put() before return
soc: qcom: qcom_stats: Fix client votes offset
soc: qcom: rpmhpd: fix sm8350_mxc's peer domain
dt-bindings: arm: cpus: Document qcom,msm8916-smp enable-method
ARM: qcom: Add qcom,msm8916-smp enable-method identical to MSM8226
firmware: qcom: scm: Add support for MC boot address API
soc: qcom: spm: Add 8916 SPM register data
dt-bindings: soc: qcom: spm: Document qcom,msm8916-saw2-v3.0-cpu
soc: qcom: socinfo: Add PM8150C and SMB2351 models
firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
soc: qcom: smp2p: add feature negotiation and ssr ack feature support
soc: qcom: Add Sleep stats driver
dt-bindings: Introduce QCOM Sleep stats bindings
soc: qcom: socinfo: add two missing PMIC IDs
soc: qcom: rpmhpd: Make power_on actually enable the domain
soc: qcom: smem: Support reserved-memory description
dt-bindings: soc: smem: Make indirection optional
dt-bindings: sram: Document qcom,rpm-msg-ram
Link: https://lore.kernel.org/r/20211026140706.1205989-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Convert Exynos ChipID and ASV driver to a module and make it a
default, instead of selected. The driver is not essential, so it
could be disabled, if needed.
2. Add support for Exynos850 and Exynos Auto v9 to Exynos ChipID and ASV
driver.
3. Get rid of HAVE_S3C_RTC because it was adding just another layer
instead of direct dependencies.
4. Minor cleanups.
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Merge tag 'samsung-drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/drivers
Samsung SoC drivers changes for v5.16
1. Convert Exynos ChipID and ASV driver to a module and make it a
default, instead of selected. The driver is not essential, so it
could be disabled, if needed.
2. Add support for Exynos850 and Exynos Auto v9 to Exynos ChipID and ASV
driver.
3. Get rid of HAVE_S3C_RTC because it was adding just another layer
instead of direct dependencies.
4. Minor cleanups.
* tag 'samsung-drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
soc: samsung: exynos-chipid: add exynosautov9 SoC support
rtc: s3c: remove HAVE_S3C_RTC in favor of direct dependencies
soc: samsung: exynos-chipid: Add Exynos850 support
dt-bindings: samsung: exynos-chipid: Document Exynos850 compatible
soc: samsung: exynos-chipid: Pass revision reg offsets
soc: samsung: pm_domains: drop unused is_off field
arm64: exynos: don't have ARCH_EXYNOS select EXYNOS_CHIPID
soc: samsung: exynos-chipid: do not enforce built-in
soc: samsung: exynos-chipid: convert to a module
soc: samsung: exynos-chipid: avoid soc_device_to_device()
soc: samsung: exynos-pmu: Fix compilation when nothing selects CONFIG_MFD_CORE
Link: https://lore.kernel.org/r/20211026094709.75692-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The newly added ffa_compatible_version_find() function causes a
build warning because of a variable that is never used:
drivers/firmware/arm_ffa/driver.c:180:6: error: unused variable 'compat_version' [-Werror,-Wunused-variable]
u32 compat_version;
Link: https://lore.kernel.org/r/20211026083400.3444946-1-arnd@kernel.org
Fixes: 8e3f9da608 ("firmware: arm_ffa: Handle compatibility with different firmware versions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The product id of Exynos Auto v9 is "0xAAA8_0000". Add this id and its
name.
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20211021012017.158919-2-chanho61.park@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
The introduction of __qcom_scm_set_boot_addr_mc() relies on
cpu_logical_map() and MPIDR_AFFINITY_LEVEL() from smp_plat.h, but only
ARM and ARM64 has this include file, so the introduction of this
dependency broke compile testing on e.g. x86_64.
Make the inclusion of smp_plat.h and the affected function depend on
ARM || ARM64 to allow the code to still be compiled.
Fixes: 55845f46df ("firmware: qcom: scm: Add support for MC boot address API")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211025025816.2937465-1-bjorn.andersson@linaro.org
Fix following coccicheck warning:
./drivers/soc/qcom/smp2p.c:501:1-33: WARNING: Function
for_each_available_child_of_node should have of_node_put() before goto
Early exits from for_each_available_child_of_node should decrement the
node reference counter.
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211014062350.8942-1-wanjiabing@vivo.com
Fix following coccicheck warning:
./drivers/soc/qcom/apr.c:485:1-23: WARNING: Function
for_each_child_of_node should have of_node_put() before return
Early exits from for_each_child_of_node should decrement the
node reference counter.
Fixes: 8347356626 ("soc: qcom: apr: Add avs/audio tracking functionality")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211014083017.19714-1-wanjiabing@vivo.com
Since MSM8916 is an ARM v8 64-bit SoC the CPU cores are normally booted
using "psci" or "spin-table". Unfortunately, some devices come with signed
32-bit-only firmware without ARM64 and PSCI support. This setup is easy to
support since it's very similar to older 32-bit only Qualcomm SoCs
(e.g. MSM8226) and only requires adding a few new definitions to already
existing drivers.
Document the qcom,msm8916-smp enable-method. It is actually just an alias
of qcom,msm8226-smp since it should be implemented identically.
The enable-method is only valid on ARM32 and must not be used on ARM64.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004204955.21077-8-stephan@gerhold.net
Unfortunately, some MSM8916 devices have signed firmware without
ARM64 and PSCI support and can therefore only boot ARM32 Linux.
The ARM Cortex-A53 cores should be actually booted exactly like
the Cortex-A7 cores on MSM8226, so just add an alias for the
existing code.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004204955.21077-9-stephan@gerhold.net
It looks like the old QCOM_SCM_BOOT_SET_ADDR API is broken on some
MSM8916 firmware versions that implement the newer SMC32 calling
convention. It just returns -EINVAL no matter which arguments are
being passed.
This does not cause any problems downstream because it first tries
to use the new multi-cluster API replacement which is working fine.
Implement support for the multi-cluster variant of the SCM call
by attempting it first but still fallback to the old call in case
of an error. Also, to be absolutely sure only use the multi-cluster
variant with the SMC calling convention since older platforms should
not need this.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004204955.21077-12-stephan@gerhold.net
Document the qcom,msm8916-saw2-v3.0-cpu compatible that is needed
for cpuidle for MSM8916 on some devices with signed firmware which
is only capable of booting ARM32 kernels without PSCI.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004204955.21077-10-stephan@gerhold.net
Since __qcom_scm_is_call_available() returns bool, have it return false
instead of -EINVAL if an invalid SMC convention is detected.
This fixes the Smatch static checker warning:
drivers/firmware/qcom_scm.c:255 __qcom_scm_is_call_available()
warn: signedness bug returning '(-22)'
Fixes: 9d11af8b06 ("firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1633982414-28347-1-git-send-email-quic_gurus@quicinc.com
Add driver support for the UART routing control. Users can perform
runtime configuration of the RX muxes among the UART controllers and
the UART IO pins.
The sysfs interface is also exported for the convenience of routing paths
check and update.
Signed-off-by: Oskar Senft <osk@google.com>
Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Tested-by: Lei YU <yulei.sh@bytedance.com>
Link: https://lore.kernel.org/r/20210927023053.6728-5-chiawei_wang@aspeedtech.com
Link: https://lore.kernel.org/r/20211022000616.481772-1-joel@jms.id.au'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
DPIO Driver
- Code cleanup and fix compile warning
RCMP and Guts Driver
- Make use of the helper function devm_platform_ioremap_resource()
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Merge tag 'soc-fsl-next-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers
NXP/FSL SoC driver updates for v5.16
DPIO Driver
- Code cleanup and fix compile warning
RCMP and Guts Driver
- Make use of the helper function devm_platform_ioremap_resource()
* tag 'soc-fsl-next-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
soc: fsl: dpio: rename the enqueue descriptor variable
soc: fsl: dpio: use an explicit NULL instead of 0
soc: fsl: rcpm: Make use of the helper function devm_platform_ioremap_resource()
soc: fsl: guts: Make use of the helper function devm_platform_ioremap_resource()
Link: https://lore.kernel.org/r/20211022010027.11866-2-leoyang.li@nxp.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The struct qbman_eq_desc 'd' variable declaration is covering one of the
function parameters. This has no functional impact since this function
parameter was not used after the new declaration.
Even so, rename the variable so that we make the code more readable.
Fixes: 3b2abda7d2 ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")
Signed-off-by: Youri Querry <youri.querry_1@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Use an explicit NULL pointer when calling qbman_swp_enqueue_multiple()
instead of a plain integer. Without this fix, we get the following
compile time error.
drivers/soc/fsl/dpio/dpio-service.c:466:60: warning: Using plain integer as NULL pointer
Fixes: 9d98809711 ("soc: fsl: dpio: Adding QMAN multiple enqueue interface")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Tegra20 EMC driver uses simple devfreq governor. Add simple devfreq
governor to the list of the Tegra20 EMC driver module softdeps to allow
userspace initramfs tools like dracut to automatically pull the devfreq
module into ramfs image together with the EMC module.
Reported-by: Nicolas Chauvet <kwizart@gmail.com>
Suggested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20211019231524.888-1-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Allow building the reset-brcmstb-rescal driver as module, add reset
lines for the Uniphier PXs3 audio and video input subsystems and
bindings for the Uniphier NX1 SoC, and add lan966x switch reset support
to the reset-microchip-sparx5 driver.
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Merge tag 'reset-for-v5.16' of git://git.pengutronix.de/pza/linux into arm/drivers
Reset controller updates for v5.16
Allow building the reset-brcmstb-rescal driver as module, add reset
lines for the Uniphier PXs3 audio and video input subsystems and
bindings for the Uniphier NX1 SoC, and add lan966x switch reset support
to the reset-microchip-sparx5 driver.
* tag 'reset-for-v5.16' of git://git.pengutronix.de/pza/linux:
reset: mchp: sparx5: Extend support for lan966x
dt-bindings: reset: Add lan966x support
reset: uniphier: Add NX1 reset support
dt-bindings: reset: uniphier: Add NX1 reset control binding
reset: uniphier: Add audio system and video input reset control for PXs3
reset: Allow building Broadcom STB RESCAL as module
Link: https://lore.kernel.org/r/96e686f78f0e42bad666df5ec0cbcb2dcdc270a3.camel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Adds supports for the OP-TEE driver to communicate with secure world
using FF-A [1] as transport.
[1] https://developer.arm.com/documentation/den0077/latest
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Merge tag 'optee-ffa-for-v5.16' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers
Add FF-A support in OP-TEE driver
Adds supports for the OP-TEE driver to communicate with secure world
using FF-A [1] as transport.
[1] https://developer.arm.com/documentation/den0077/latest
* tag 'optee-ffa-for-v5.16' of git://git.linaro.org/people/jens.wiklander/linux-tee:
optee: add FF-A support
optee: isolate smc abi
optee: refactor driver with internal callbacks
optee: simplify optee_release()
tee: add sec_world_id to struct tee_shm
tee: optee: Fix missing devices unregister during optee_remove
tee/optee/shm_pool: fix application of sizeof to pointer
Link: https://lore.kernel.org/r/20211018121324.GA2943530@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Converted in-place without moving file to drivers/clk.
tested on ts7250 (EP9302).
Only setting rate and change parent tested for, as they
are missing on ts7250:
- video
- I2S
- ADC/KEYPAD
- PWM
Only video and I2S clock are interesting, as they are
GATE + double DIV + MUX, all other are pretty much
common but require ep93xx_syscon_swlocked_write to set
registers.
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20211018103105.146380-3-alexander.sverdlin@gmail.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Use clk_prepare_enable()/clk_disable_unprepare() in preparation for switch
to Common Clock Framework, otherwise the following is visible:
WARNING: CPU: 0 PID: 97 at drivers/clk/clk.c:1011 clk_core_enable+0x9c/0xbc
Enabling unprepared mclk
...
Hardware name: Cirrus Logic EDB9302 Evaluation Board
...
clk_core_enable
clk_core_enable_lock
ep93xx_i2s_hw_params
snd_soc_dai_hw_params
soc_pcm_hw_params
snd_pcm_hw_params
snd_pcm_ioctl
...
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211018103105.146380-2-alexander.sverdlin@gmail.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
and improving logging.
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Merge tag 'sunxi-drivers-for-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/drivers
Some new drivers changes for the Allwinner SoCs, converting to a helper
and improving logging.
* tag 'sunxi-drivers-for-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
bus: sun50i-de2: Adjust printing error message
soc: sunxi_sram: Make use of the helper function devm_platform_ioremap_resource()
Link: https://lore.kernel.org/r/ad0aa469-9e1b-4bb6-a116-92648ed774fa.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Select REGMAP_MMIO for i.MX GPCv2 driver to avoid build issue.
- A couple of i.MX GPCv2 driver changes from Marek Vasut to turn
domain->pgc into bitfield for i.MX8MM GPU domain support.
- A series from Lucas Stach adding support of i.MX8MM nested power
domains like VPUMIX and DISPMIX which contains the ADB and BLK_CTRL.
- An off-by-one fix on Lucas' i.MX8M blk-ctrl driver code.
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Merge tag 'imx-drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers update for 5.16:
- Select REGMAP_MMIO for i.MX GPCv2 driver to avoid build issue.
- A couple of i.MX GPCv2 driver changes from Marek Vasut to turn
domain->pgc into bitfield for i.MX8MM GPU domain support.
- A series from Lucas Stach adding support of i.MX8MM nested power
domains like VPUMIX and DISPMIX which contains the ADB and BLK_CTRL.
- An off-by-one fix on Lucas' i.MX8M blk-ctrl driver code.
* tag 'imx-drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: imx8m-blk-ctrl: off by one in imx8m_blk_ctrl_xlate()
soc: imx: imx8m-blk-ctrl: add DISP blk-ctrl
soc: imx: add i.MX8M blk-ctrl driver
soc: imx: gpcv2: support system suspend/resume
soc: imx: gpcv2: keep i.MX8M* bus clocks enabled
soc: imx: gpcv2: add domain option to keep domain clocks enabled
soc: imx: gpcv2: add lockdep annotation
Revert "soc: imx: gpcv2: move reset assert after requesting domain power up"
soc: imx: gpcv2: allow to disable individual power domains
imx: soc: Select REGMAP_MMIO
soc: imx: gpcv2: Set both GPC_PGC_nCTRL(GPU_2D|GPU_3D) for MX8MM GPU domain
soc: imx: gpcv2: Turn domain->pgc into bitfield
Link: https://lore.kernel.org/r/20211016140138.1603-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
As part of the FF-A spec, an endpoint is allowed to transfer access of,
or lend, a memory region to one or more borrowers.
Extend the existing memory sharing implementation to support
FF-A MEM_LEND functionality and expose this to other kernel drivers.
Note that upon a successful MEM_LEND request the caller must ensure that
the memory region specified is not accessed until a successful
MEM_RECALIM call has been made. On systems with a hypervisor present
this will been enforced, however on systems without a hypervisor the
responsibility falls to the calling kernel driver to prevent access.
Link: https://lore.kernel.org/r/20211015165742.2513065-1-marc.bonnici@arm.com
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
The driver currently just support v1.0 of Arm FFA specification. It also
expects the firmware implementation to match the same and bail out if it
doesn't match. This is causing issue when running with higher version of
firmware implementation(e.g. v1.1 which will released soon).
In order to support compatibility with different firmware versions, let
us add additional checks and find the compatible version the driver can
work with.
Link: https://lore.kernel.org/r/20211013091127.990992-1-sudeep.holla@arm.com
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This patch extends sparx5 driver to support also the lan966x. The
process to reset the switch is the same only it has different offsets.
Therefore make the driver more generic and add support for lan966x.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Steen Hegelund <steen.hegelund@microchip.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20211018091522.1113510-3-horatiu.vultur@microchip.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This patch extends the existing file microchip,rst.yaml to support
also the lan966x. For this is added only a new compatible string.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20211018091522.1113510-2-horatiu.vultur@microchip.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Adds support for using FF-A [1] as transport to the OP-TEE driver.
Introduces struct optee_msg_param_fmem which carries all information
needed when OP-TEE is calling FFA_MEM_RETRIEVE_REQ to get the shared
memory reference mapped by the hypervisor in S-EL2. Register usage is
also updated to include the information needed.
The FF-A part of this driver is enabled if CONFIG_ARM_FFA_TRANSPORT is
enabled.
[1] https://developer.arm.com/documentation/den0077/latest
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Isolate the ABI based on raw SMCs. Code specific to the raw SMC ABI is
moved into smc_abi.c. This makes room for other ABIs with a clear
separation.
The driver changes to use module_init()/module_exit() instead of
module_platform_driver(). The platform_driver_register() and
platform_driver_unregister() functions called directly to keep the same
behavior. This is needed because module_platform_driver() is based on
module_driver() which can only be used once in a module.
A function optee_rpc_cmd() is factored out from the function
handle_rpc_func_cmd() to handle the ABI independent part of RPC
processing.
This patch is not supposed to change the driver behavior, it's only a
matter of reorganizing the code.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
The config HAVE_S3C_RTC is not really needed since we can simply just
add the dependencies directly to RTC_DRV_S3C. Also, one less config to
keep track of!
Signed-off-by: Will McVicker <willmcvicker@google.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211013212256.3425889-1-willmcvicker@google.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
This patch adds feature negotiation and ssr ack feature between
local host and remote processor. Local host can negotiate on common
features supported with remote processor.
When ssr ack feature bit is set, the remote processor will tell local
host when it is reinitialized. All clients registered for falling edge
interrupts will be notified when the smp2p entries are cleared for ssr.
Signed-off-by: Chris Lew <clew@codeaurora.org>
Signed-off-by: Deepak Kumar Singh <deesin@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1633450403-21281-1-git-send-email-deesin@codeaurora.org
Let's add a driver to read the stats from remote processor and
export to debugfs.
The driver creates "qcom_sleep_stats" directory in debugfs and
adds files for various low power mode available. Below is sample
output with command
cat /sys/kernel/debug/qcom_sleep_stats/ddr
count = 0
Last Entered At = 0
Last Exited At = 0
Accumulated Duration = 0
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
[mkshah: add subsystem sleep stats, create one file for each stat]
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1634107104-22197-3-git-send-email-mkshah@codeaurora.org
Add device binding documentation for Qualcomm Technologies, Inc. (QTI)
Sleep stats driver. The driver is used for displaying Sleep statistic maintained
by Always On Processor or Resource Power Manager.
Cc: devicetree@vger.kernel.org
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1634107104-22197-2-git-send-email-mkshah@codeaurora.org
Add IDs for PMK8001 and PMI8996. They also fall in the list of
'duplicated' IDs, where the same index was used for multiple chips.
Fixes: 7fda2b0bfb ("soc: qcom: socinfo: import PMIC IDs from pmic-spmi")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211016190607.49866-1-dmitry.baryshkov@linaro.org
The general expectation is that powering on a power-domain should make
the power domain deliver some power, and if a specific performance state
is needed further requests has to be made.
But in contrast with other power-domain implementations (e.g. rpmpd) the
RPMh does not have an interface to enable the power, so the driver has
to vote for a particular corner (performance level) in rpmh_power_on().
But the corner is never initialized, so a typical request to simply
enable the power domain would not actually turn on the hardware. Further
more, when no more clients vote for a performance state (i.e. the
aggregated vote is 0) the power domain would be turned off.
Fix both of these issues by always voting for a corner with non-zero
value, when the power domain is enabled.
The tracking of the lowest non-zero corner is performed to handle the
corner case if there's ever a domain with a non-zero lowest corner, in
which case both rpmh_power_on() and rpmh_rpmhpd_set_performance_state()
would be allowed to use this lowest corner.
Fixes: 279b7e8a62 ("soc: qcom: rpmhpd: Add RPMh power domain driver")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211005033732.2284447-1-bjorn.andersson@linaro.org
The OP-TEE driver is refactored with three internal callbacks replacing
direct calls to optee_from_msg_param(), optee_to_msg_param() and
optee_do_call_with_arg().
These functions a central to communicating with OP-TEE in secure world
by using the SMC Calling Convention directly.
This refactoring makes room for using other primitives to communicate
with OP-TEE in secure world while being able to reuse as much as
possible from the present driver.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Simplifies optee_release() with a new helper function,
optee_close_session_helper() which has been factored out from
optee_close_session().
A separate optee_release_supp() is added for the supplicant device.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Adds sec_world_id to struct tee_shm which describes a shared memory
object. sec_world_id can be used by a driver to store an id assigned by
secure world.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
ASUS Transformer TF101 doesn't provide RAM code and in this case memory
timings should be selected based on identity information read out from
SDRAM chip. Support matching timings by LPDDR2 configuration.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20211006224659.21434-10-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
