Here is the large set of char/misc/whatever driver subsystem updates for
5.12-rc1. Over time it seems like this tree is collecting more and more
tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86
maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only reported
issue being a merge conflict in include/linux/mod_devicetable.h that you
will hit in your tree due to the dfl_device_id addition from the fpga
subsystem in here. The resolution should be simple.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc/whatever driver subsystem updates
for 5.12-rc1. Over time it seems like this tree is collecting more and
more tiny driver subsystems in one place, making it easier for those
maintainers, which is why this is getting larger.
Included in here are:
- coresight driver updates
- habannalabs driver updates
- virtual acrn driver addition (proper acks from the x86 maintainers)
- broadcom misc driver addition
- speakup driver updates
- soundwire driver updates
- fpga driver updates
- amba driver updates
- mei driver updates
- vfio driver updates
- greybus driver updates
- nvmeem driver updates
- phy driver updates
- mhi driver updates
- interconnect driver udpates
- fsl-mc bus driver updates
- random driver fix
- some small misc driver updates (rtsx, pvpanic, etc.)
All of these have been in linux-next for a while, with the only
reported issue being a merge conflict due to the dfl_device_id
addition from the fpga subsystem in here"
* tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
spmi: spmi-pmic-arb: Fix hw_irq overflow
Documentation: coresight: Add PID tracing description
coresight: etm-perf: Support PID tracing for kernel at EL2
coresight: etm-perf: Clarify comment on perf options
ACRN: update MAINTAINERS: mailing list is subscribers-only
regmap: sdw-mbq: use MODULE_LICENSE("GPL")
regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ
regmap: sdw: use _no_pm functions in regmap_read/write
soundwire: intel: fix possible crash when no device is detected
MAINTAINERS: replace my with email with replacements
mhi: Fix double dma free
uapi: map_to_7segment: Update example in documentation
uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED
drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
firewire: replace tricky statement by two simple ones
vme: make remove callback return void
firmware: google: make coreboot driver's remove callback return void
firmware: xilinx: Use explicit values for all enum values
sample/acrn: Introduce a sample of HSM ioctl interface usage
virt: acrn: Introduce an interface for Service VM to control vCPU
...
- Generalise byte swapping assembly
- Update debug addresses for STI
- Validate start of physical memory with DTB
- Do not clear SCTLR.nTLSMD in decompressor
- amba/locomo/sa1111 devices remove method return type is void
- address markers for KASAN in page table dump
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- Generalise byte swapping assembly
- Update debug addresses for STI
- Validate start of physical memory with DTB
- Do not clear SCTLR.nTLSMD in decompressor
- amba/locomo/sa1111 devices remove method return type is void
- address markers for KASAN in page table dump
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9065/1: OABI compat: fix build when EPOLL is not enabled
ARM: 9055/1: mailbox: arm_mhuv2: make remove callback return void
amba: Make use of bus_type functions
amba: Make the remove callback return void
vfio: platform: simplify device removal
amba: reorder functions
amba: Fix resource leak for drivers without .remove
ARM: 9054/1: arch/arm/mm/mmu.c: Remove duplicate header
ARM: 9053/1: arm/mm/ptdump:Add address markers for KASAN regions
ARM: 9051/1: vdso: remove unneded extra-y addition
ARM: 9050/1: Kconfig: Select ARCH_HAVE_NMI_SAFE_CMPXCHG where possible
ARM: 9049/1: locomo: make locomo bus's remove callback return void
ARM: 9048/1: sa1111: make sa1111 bus's remove callback return void
ARM: 9047/1: smp: remove unused variable
ARM: 9046/1: decompressor: Do not clear SCTLR.nTLSMD for ARMv7+ cores
ARM: 9045/1: uncompress: Validate start of physical memory against passed DTB
ARM: 9042/1: debug: no uncompress debugging while semihosting
ARM: 9041/1: sti LL_UART: add STiH418 SBC UART0 support
ARM: 9040/1: use DEBUG_UART_PHYS and DEBUG_UART_VIRT for sti LL_UART
ARM: 9039/1: assembler: generalize byte swapping macro into rev_l
Including:
- ARM SMMU and Mediatek updates from Will Deacon:
- Support for MT8192 IOMMU from Mediatek
- Arm v7s io-pgtable extensions for MT8192
- Removal of TLBI_ON_MAP quirk
- New Qualcomm compatible strings
- Allow SVA without hardware broadcast TLB maintenance
on SMMUv3
- Virtualization Host Extension support for SMMUv3 (SVA)
- Allow SMMUv3 PMU (perf) driver to be built
independently from IOMMU
- Some tidy-up in IOVA and core code
- Conversion of the AMD IOMMU code to use the generic
IO-page-table framework
- Intel VT-d updates from Lu Baolu:
- Audit capability consistency among different IOMMUs
- Add SATC reporting structure support
- Add iotlb_sync_map callback support
- SDHI Support for Renesas IOMMU driver
- Misc Cleanups and other small improvments
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Merge tag 'iommu-updates-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- ARM SMMU and Mediatek updates from Will Deacon:
- Support for MT8192 IOMMU from Mediatek
- Arm v7s io-pgtable extensions for MT8192
- Removal of TLBI_ON_MAP quirk
- New Qualcomm compatible strings
- Allow SVA without hardware broadcast TLB maintenance on SMMUv3
- Virtualization Host Extension support for SMMUv3 (SVA)
- Allow SMMUv3 PMU perf driver to be built independently from IOMMU
- Some tidy-up in IOVA and core code
- Conversion of the AMD IOMMU code to use the generic IO-page-table
framework
- Intel VT-d updates from Lu Baolu:
- Audit capability consistency among different IOMMUs
- Add SATC reporting structure support
- Add iotlb_sync_map callback support
- SDHI support for Renesas IOMMU driver
- Misc cleanups and other small improvments
* tag 'iommu-updates-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (94 commits)
iommu/amd: Fix performance counter initialization
MAINTAINERS: repair file pattern in MEDIATEK IOMMU DRIVER
iommu/mediatek: Fix error code in probe()
iommu/mediatek: Fix unsigned domid comparison with less than zero
iommu/vt-d: Parse SATC reporting structure
iommu/vt-d: Add new enum value and structure for SATC
iommu/vt-d: Add iotlb_sync_map callback
iommu/vt-d: Move capability check code to cap_audit files
iommu/vt-d: Audit IOMMU Capabilities and add helper functions
iommu/vt-d: Fix 'physical' typos
iommu: Properly pass gfp_t in _iommu_map() to avoid atomic sleeping
iommu/vt-d: Fix compile error [-Werror=implicit-function-declaration]
driver/perf: Remove ARM_SMMU_V3_PMU dependency on ARM_SMMU_V3
MAINTAINERS: Add entry for MediaTek IOMMU
iommu/mediatek: Add mt8192 support
iommu/mediatek: Remove unnecessary check in attach_device
iommu/mediatek: Support master use iova over 32bit
iommu/mediatek: Add iova reserved function
iommu/mediatek: Support for multi domains
iommu/mediatek: Add get_domain_id from dev->dma_range_map
...
Two minor cleanups and one fix for compile testing (when !CONFIG_OF).
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Merge tag 'memory-controller-drv-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers
Memory controller drivers for v5.12, part two
Two minor cleanups and one fix for compile testing (when !CONFIG_OF).
* tag 'memory-controller-drv-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
memory: samsung: exynos5422-dmc: Correct function names in kerneldoc
memory: ti-emif-pm: Drop of_match_ptr from of_device_id table
Link: https://lore.kernel.org/r/20210211081829.7317-1-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fix the following coccicheck warning:
drivers/memory/tegra/tegra186-emc.c:158:0-23: WARNING:
tegra186_emc_debug_max_rate_fops should be defined with DEFINE_DEBUGFS_ATTRIBUTE.
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1612684970-125948-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Correct kerneldoc to fix W=1 warnings:
drivers/memory/samsung/exynos5422-dmc.c:290: warning:
expecting prototype for find_target_freq_id(). Prototype was for find_target_freq_idx() instead
drivers/memory/samsung/exynos5422-dmc.c:1015: warning:
expecting prototype for exynos5_dmc_align_initial_frequency(). Prototype was for exynos5_dmc_align_init_freq() instead
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20210206111715.20774-1-krzk@kernel.org
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might be not relevant here). This
fixes compile warning (!CONFIG_OF with clang):
drivers/memory/ti-emif-pm.c:238:34: warning:
unused variable 'ti_emif_of_match' [-Wunused-const-variable]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20210206111343.19273-1-krzk@kernel.org
This merges from linux-arm at 860660fd82 ("ARM: 9055/1: mailbox:
arm_mhuv2: make remove callback return void") into char-misc-next to get
the amba fixes from Uwe.
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All amba drivers return 0 in their remove callback. Together with the
driver core ignoring the return value anyhow, it doesn't make sense to
return a value here.
Change the remove prototype to return void, which makes it explicit that
returning an error value doesn't work as expected. This simplifies changing
the core remove callback to return void, too.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org> # for drivers/memory
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> # for hwtracing/coresight
Acked-By: Vinod Koul <vkoul@kernel.org> # for dmaengine
Acked-by: Guenter Roeck <linux@roeck-us.net> # for watchdog
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Takashi Iwai <tiwai@suse.de> # for sound
Acked-by: Vladimir Zapolskiy <vz@mleia.com> # for memory/pl172
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210126165835.687514-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
After extending v7s, our pagetable already support iova reach
16GB(34bit). the master got the iova via dma_alloc_attrs may reach
34bits, but its HW register still is 32bit. then how to set the
bit32/bit33 iova? this depend on a SMI larb setting(bank_sel).
we separate whole 16GB iova to four banks:
bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G;
The bank number is (iova >> 32).
We will preassign which bank the larbs belong to. currently we don't
have a interface for master to adjust its bank number.
Each a bank is a iova_region which is a independent iommu-domain.
the iova range for each iommu-domain can't cross 4G.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org> #for memory part
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-31-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Use the common memory header(larb-port) in the source code.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-9-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
There is no point calling dev_pm_opp_set_clkname() with the "name"
parameter set to NULL, this is already done by the OPP core at setup
time and should work as it is.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/0f22cc1791d8b88c50a9790c2dc19455b34ec7b0.1611742564.git.viresh.kumar@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add support for building the SMI driver as module. Switch MTK_SMI to
tristate, and add module_exit/module_license.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Link: https://lore.kernel.org/r/20210126060055.11050-1-yong.wu@mediatek.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Call of_node_put() to decrement the reference count of the child node
child_np when jumping out of the loop body of
for_each_available_child_of_node(), which is a macro that increments and
decrements the reference count of child node. If the loop is broken, the
reference of the child node should be dropped manually.
Fixes: 5a7c81547c ("memory: ti-aemif: introduce AEMIF driver")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Link: https://lore.kernel.org/r/20210121090359.61763-1-bianpan2016@163.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Check whether memory client reset is already asserted in order to prevent
DMA-flush error on trying to re-assert an already asserted reset.
This becomes a problem once PMC GENPD is enabled to use memory resets
since GENPD will get a error and fail to toggle power domain. PMC GENPDs
can't be toggled safely without holding memory reset on Tegra and we're
about to fix this.
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210119235210.13006-1-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This driver is for the EMIF private feature implemented under FPGA
Device Feature List (DFL) framework. It is used to expose memory
interface status information as well as memory clearing control.
The purpose of memory clearing block is to zero out all private memory
when FPGA is to be reprogrammed. This gives users a reliable method to
prevent potential data leakage.
[mdf@kernel.org: Fixed up ABI doc]
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20210107043714.991646-9-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Renesas RPC-IF is present on the RZ/G2 Series. Add that to
the description.
Suggested-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20210102115412.3402059-2-aford173@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Now Internal and External memory controllers are memory interconnection
providers. This allows us to use interconnect API for tuning of memory
configuration. EMC driver now supports OPPs and DVFS.
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201228154920.18846-4-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
EMC driver will become mandatory after turning it into interconnect
provider because interconnect users, like display controller driver, will
fail to probe using newer device-trees that have interconnect properties.
Thus make EMC driver to probe even if timings are missing in device-tree.
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201228154920.18846-3-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add modularization support to the Tegra124 EMC driver, which now can be
compiled as a loadable kernel module.
Note that EMC clock must be registered at clk-init time, otherwise PLLM
will be disabled as unused clock at boot time if EMC driver is compiled
as a module. Hence add a prepare/complete callbacks. similarly to what is
done for the Tegra20/30 EMC drivers.
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201228154920.18846-2-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Spinlock can be initialized automatically with DEFINE_SPINLOCK() rather
than explicitly calling spin_lock_init().
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201228135056.28511-1-zhengyongjun3@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
pm_runtime_get_sync will increment pm usage counter
even it failed. Forgetting to putting operation will
result in reference leak here. We fix it by replacing
it with pm_runtime_resume_and_get to keep usage counter
balanced.
Fixes: 4f0a1a1ae3 ("memory: mtk-smi: Invoke pm runtime_callback to enable clocks")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201123102118.3866195-1-zhangqilong3@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Memory controller drivers for v5.11 - Tegra SoC, part two
Continuation of work on Tegra SoC memory controllers towards adding
interconnect support and integration with devfreq.
This brings few more patches including one which removes/fixes annoying
warning if the DTS patches get applied. This is expected and only
informs that new features of Tegra memory controller drivers will not be
enabled however the warning itself could look worrying.
* tag 'memory-controller-drv-tegra-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: tegra30: Support interconnect framework
memory: tegra20: Support hardware versioning and clean up OPP table initialization
dt-bindings: memory: tegra20-emc: Document opp-supported-hw property
Link: https://lore.kernel.org/r/20201207075758.5501-2-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Memory controller drivers for v5.11, part two
1. Several fixes for Renesas RPC-IF driver.
2. Correct compile testing of TI EMIF SRAM driver.
3. Fix potential NULL pointer in JZ4780 NEMC driver.
* tag 'memory-controller-drv-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
memory: ti-emif-sram: only build for ARMv7
memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static inline
memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()
memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm
memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer()
Link: https://lore.kernel.org/r/20201207075758.5501-1-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.
This is detected by Coccinelle semantic patch.
Fixes: 911a888297 ("memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/1607070717-32880-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
The driver can be compile-tested on all ARM machines, but
causes a failure when built for ARMv7-M:
arm-linux-gnueabi-ld: error: drivers/memory/ti-emif-sram-pm.o: conflicting architecture profiles A/M
Limit the target machines to configurations that have ARMv7 enabled.
Fixes: ea0c0ad6b6 ("memory: Enable compile testing for most of the drivers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201203230832.1481767-1-arnd@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Now Internal and External memory controllers are memory interconnection
providers. This allows us to use interconnect API for tuning of memory
configuration. EMC driver now supports OPPs and DVFS. MC driver now
supports tuning of memory arbitration latency, which needs to be done
for ISO memory clients, like a Display client for example.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Acked-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201203192439.16177-4-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Support hardware versioning, which is now required for Tegra20 EMC OPP.
Clean up OPP table initialization by using a error code returned by OPP
API for judging about the OPP table presence in a device-tree and remove
OPP regulator initialization because we're now going to use power domain
instead of a raw regulator. This puts Tegra20 EMC OPP preparation on par
with the Tegra30/124 EMC drivers.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201203192439.16177-3-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Define rpcif_enable_rpm() and rpcif_disable_rpm() as static
inline in the header instead of exporting them.
Suggested-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Pavel Machek (CIP) <pavel@denx.de>
Link: https://lore.kernel.org/r/20201126191146.8753-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
In the error path of rpcif_manual_xfer() the value of ret is overwritten
by value returned by reset_control_reset() function and thus returning
incorrect value to the caller.
This patch makes sure the correct value is returned to the caller of
rpcif_manual_xfer() by dropping the overwrite of ret in error path.
Also now we ignore the value returned by reset_control_reset() in the
error path and instead print a error message when it fails.
Fixes: ca7d8b980b ("memory: add Renesas RPC-IF driver")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Pavel Machek (CIP) <pavel@denx.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201126191146.8753-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
There is a bigger work from Dmitry Osipenko around Tegra SoC memory
controller drivers, mostly towards adding interconnect support and
integration with devfreq. This work touches all Tegra memory controller
drivers and also few other SoC-related parts. It's not yet finished but
the intermediate stage seems ready to merge.
Beside that Tegra 210 memory controller got few fixes and received new
swgroups (work of Nicolin Chen).
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Merge tag 'memory-controller-drv-tegra-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers
Memory controller drivers for v5.11 - Tegra SoC
There is a bigger work from Dmitry Osipenko around Tegra SoC memory
controller drivers, mostly towards adding interconnect support and
integration with devfreq. This work touches all Tegra memory controller
drivers and also few other SoC-related parts. It's not yet finished but
the intermediate stage seems ready to merge.
Beside that Tegra 210 memory controller got few fixes and received new
swgroups (work of Nicolin Chen).
* tag 'memory-controller-drv-tegra-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: (38 commits)
memory: tegra30-emc: Remove unnecessary of_node_put in tegra_emc_probe
memory: tegra: Complete tegra210_swgroups
memory: tegra30-emc: Continue probing if timings are missing in device-tree
memory: tegra30-emc: Make driver modular
memory: tegra30: Add FIFO sizes to memory clients
memory: tegra20-emc: Add devfreq support
memory: tegra20-emc: Remove IRQ number from error message
memory: tegra20-emc: Factor out clk initialization
memory: tegra20-emc: Use dev_pm_opp_set_clkname()
memory: tegra: Correct stub of devm_tegra_memory_controller_get()
memory: tegra20: Support interconnect framework
memory: tegra20-emc: Continue probing if timings are missing in device-tree
memory: tegra20-emc: Make driver modular
memory: tegra-mc: Add interconnect framework
memory: tegra: Add missing latency allowness entry for Page Table Cache
memory: tegra: Remove superfluous error messages around platform_get_irq()
memory: tegra: Use devm_platform_ioremap_resource()
memory: tegra: Add and use devm_tegra_memory_controller_get()
dt-bindings: host1x: Document new interconnect properties
dt-bindings: tegra30-actmon: Document OPP and interconnect properties
...
Link: https://lore.kernel.org/r/20201126191241.23302-1-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Clang warns:
drivers/memory/tegra/tegra30-emc.c:1275:15: warning: variable 'np' is uninitialized when used here [-Wuninitialized]
of_node_put(np);
^~
drivers/memory/tegra/tegra30-emc.c:1269:24: note: initialize the variable 'np' to silence this warning
There does not need to be an of_node_put call in this error handling
block after the shuffling of the np assignment. Remove it so there is
no use of uninitialized memory.
Fixes: 5e00fd90183a ("memory: tegra30-emc: Continue probing if timings are missing in device-tree")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201119195244.1517236-1-natechancellor@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
According to Tegra X1 TRM, there are missing swgroups in the
tegra210_swgroups list. So this patch adds them to the list.
Note that the TEGRA_SWGROUP_GPU (in list) should be actually
TEGRA_SWGROUP_GPUB (in TRM), yet TEGRA_SWGROUP_GPU (in TRM) is not being
used -- only TEGRA_SWGROUP_GPUB (in TRM) is. So this patch does not add
TEGRA_SWGROUP_GPU (in TRM) and keeps TEGRA_SWGROUP_GPU (in list)
as it is.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201008003746.25659-6-nicoleotsuka@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
EMC driver will become mandatory after turning it into interconnect
provider because interconnect users, like display controller driver, will
fail to probe using newer device-trees that have interconnect properties.
Thus make EMC driver to probe even if timings are missing in device-tree.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-9-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add modularization support to the Tegra30 EMC driver, which now can be
compiled as a loadable kernel module.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-8-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
The latency allowness is calculated based on buffering capabilities of
memory clients. Add FIFO sizes to the Tegra30 memory clients.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-7-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add devfreq support to the Tegra20 EMC driver. Memory utilization
statistics will be periodically polled from the memory controller and
appropriate minimum clock rate will be selected by the devfreq governor.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20201111011456.7875-5-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Remove IRQ number from error message since it doesn't add any useful
information, especially because this number is virtual.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-6-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Factor out clk initialization and make it resource-managed. This makes
easier to follow code and will help to make further changes cleaner.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-4-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
The dev_pm_opp_get_opp_table() shouldn't be used by drivers, use
dev_pm_opp_set_clkname() instead.
Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-3-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Now Internal and External Memory Controllers are memory interconnection
providers. This allows us to use interconnect API for tuning of memory
configuration. EMC driver now supports OPPs and DVFS.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201104164923.21238-36-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
EMC driver will become mandatory after turning it into interconnect
provider because interconnect users, like display controller driver, will
fail to probe using newer device-trees that have interconnect properties.
Thus make EMC driver to probe even if timings are missing in device-tree.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201104164923.21238-35-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add modularization support to the Tegra20 EMC driver, which now can be
compiled as a loadable kernel module.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201104164923.21238-34-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add common SoC-agnostic ICC framework which turns Tegra Memory Controller
into a memory interconnection provider. This allows us to use interconnect
API for tuning of memory configurations.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Link: https://lore.kernel.org/r/20201104164923.21238-33-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add missing PTC memory client latency allowness entry to the Tegra MC
drivers.
This prevents erroneous clearing of MC_INTSTATUS 0x0 register during
of the LA programming in tegra_mc_setup_latency_allowance() due to the
missing entry. Note that this patch doesn't fix any known problems.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201104164923.21238-32-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
The platform_get_irq() prints error message telling that interrupt is
missing, hence there is no need to duplicated that message in the drivers.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201104164923.21238-31-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
