| Commit message (Collapse) | Author | Age | Files | Lines |
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Extend the probe by index API in common code to be used
by other qcom clock controller.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add support for the WCSS QDSP gcc clock control used on qcs404
based devices. This would allow wcss remoteproc driver to control
the required gcc clocks to bring the subsystem out of reset.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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QCOM_A53PLL and QCOM_CLK_APCS_MSM8916 stand out as the only options
built by default. Let's bring them back in line with the rest.
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Link: https://lkml.kernel.org/r/d654907d-a3a2-a00f-d6f5-3a34ae25ebcf@free.fr
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add the clocks supported in global clock controller which clock the
peripherals like BLSPs, SDCC, USB, MDSS etc. Register all the clocks
to the clock framework for the clients to be able to request for them.
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[vkoul: port to upstream and tidy-up
port to new parent scheme
Add comments for critical clocks]]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-6-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add programming sequence support for managing the Trion
PLLs.
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[vkoul: port to upstream and tidy-up
use upstream way of specifying PLLs]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-4-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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We want users to code properly and fix the post_div_table missing and
not rely on core to check. So remove the post_div_table check.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-3-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Commit 8f9fab480c7a ("linux/kernel.h: fix overflow for
DIV_ROUND_UP_ULL") fixed the overflow for DIV_ROUND_UP_ULL, so we no
longer need the cast for DIV_ROUND_UP_ULL, so remove the unnecessary
u64 casts.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20190722074348.29582-2-vkoul@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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'clk-const-bulk-data' and 'clk-debugfs' into clk-next
- Add SDIO gate to aspeed driver
- Support aspeed AST2600 SoC
- Add missing of_node_put() calls in various clk drivers
- Drop NULL checks in clk debugfs
- Add min/max rates to clk debugfs
* clk-aspeed:
clk: Add support for AST2600 SoC
clk: aspeed: Move structures to header
clk: aspeed: Add SDIO gate
* clk-unused:
clk: st: clkgen-pll: remove unused variable 'st_pll3200c32_407_a0'
clk: st: clkgen-fsyn: remove unused variable 'st_quadfs_fs660c32_ops'
clk: composite: Drop unused clk.h include
clk: Si5341/Si5340: remove redundant assignment to n_den
clk: qoriq: Fix -Wunused-const-variable
* clk-of-node-put:
clk: ti: dm814x: Add of_node_put() to prevent memory leak
clk: st: clk-flexgen: Add of_node_put() in st_of_flexgen_setup()
clk: davinci: pll: Add of_node_put() in of_davinci_pll_init()
clk: versatile: Add of_node_put() in cm_osc_setup()
* clk-const-bulk-data:
clk: Constify struct clk_bulk_data * where possible
* clk-debugfs:
clk: Drop !clk checks in debugfs dumping
clk: Use seq_puts() in possible_parent_show()
clk: Assert prepare_lock in clk_core_get_boundaries
clk: Add clk_min/max_rate entries in debugfs
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These recursive functions have checks for !clk being passed in, but the
callers are always looping through lists and therefore the pointers
can't be NULL. Drop the checks to simplify the code.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190826234729.145593-1-sboyd@kernel.org
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A string which did not contain a data format specification should be put
into a sequence. Thus use the corresponding function “seq_puts”.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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This function iterates the clk consumer list on clk_core so it must be
called under prepare_lock. This is already done by all callers but add a
lockdep assert to check anyway.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/29453ee8e820457d87a8faf9d496390e59c6826f.1562073871.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add two files to expose min/max clk rates as determined by
clk_core_get_boundaries, taking all consumer requests into account.
This information does not appear to be otherwise exposed to userspace.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/68e96af2df96512300604d797ade2088d7e6e496.1562073871.git.leonard.crestez@nxp.com
[sboyd@kernel.org: Drop if statements for JSON printing]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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In function dm814x_adpll_early_init, variable np takes the value
returned by of_find_node_by_name, which gets a node but does not put it.
If np is not put before return, it may cause a memory leak. Hence put np
before return.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lkml.kernel.org/r/20190804163328.6693-1-nishkadg.linux@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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In function st_of_flexgen_setup, variable pnode takes the return value
of of_get_parent, which gets a node but does not put it. If pnode is not
put before the function returns, it may cause a memory leak. Hence put
pnode after its last occurrence.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lkml.kernel.org/r/20190804163151.6511-1-nishkadg.linux@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The variable child in the function of_davinci_pll_init takes the value
of of_get_child_by_name, which gets a node but does not put it. If child
is not put before the function returns it may cause a memory leak. Hence
put child before two return statements.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lkml.kernel.org/r/20190804162824.6338-1-nishkadg.linux@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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In function cm_osc_setup, variable parent takes the value returned by
of_get_parent, which gets a node but does not put it. If parent is not
put before it goes out of scope, it may cause a memory leak.
Hence put parent before the function terminates.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lkml.kernel.org/r/20190804163445.6862-1-nishkadg.linux@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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drivers/clk/st/clkgen-pll.c:64:37: warning:
st_pll3200c32_407_a0 defined but not used [-Wunused-const-variable=]
It is never used, so can be removed.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lkml.kernel.org/r/20190816135523.73520-1-yuehaibing@huawei.com
Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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drivers/clk/st/clkgen-fsyn.c:70:29: warning:
st_quadfs_fs660c32_ops defined but not used [-Wunused-const-variable=]
It is never used, so can be removed.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lkml.kernel.org/r/20190816135341.52248-1-yuehaibing@huawei.com
Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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This include isn't used. Drop it.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190815042500.9519-1-sboyd@kernel.org
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The variable n_den is initialized however that value is never read
as n_den is re-assigned a little later in the two paths of a
following if-statement. Remove the redundant assignment.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lkml.kernel.org/r/20190701165020.19840-1-colin.king@canonical.com
Acked-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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drivers/clk/clk-qoriq.c:138:38: warning: unused variable
'p5020_cmux_grp1' [-Wunused-const-variable] static const struct
clockgen_muxinfo p5020_cmux_grp1
drivers/clk/clk-qoriq.c:146:38: warning: unused variable
'p5020_cmux_grp2' [-Wunused-const-variable] static const struct
clockgen_muxinfo p5020_cmux_grp2
In the definition of the p5020 chip, the p2041 chip's info was used
instead. The p5020 and p2041 chips have different info. This is most
likely a typo.
Link: https://github.com/ClangBuiltLinux/linux/issues/525
Cc: clang-built-linux@googlegroups.com
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Link: https://lkml.kernel.org/r/20190627220642.78575-1-nhuck@google.com
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The ast2600 is a new BMC SoC from ASPEED. It contains many more clocks
than the previous iterations, so support is broken out into it's own
driver.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lkml.kernel.org/r/20190825141848.17346-3-joel@jms.id.au
[sboyd@kernel.org: Mark arrays const]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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They will be reused by the ast2600 driver.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lkml.kernel.org/r/20190825141848.17346-2-joel@jms.id.au
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The clock divisor comes with an enable bit (gate). This was not
implemented as we didn't have access to SD hardware when writing the
driver. Now that we can test it, add the gate as a parent to the
divisor.
There is no reason to expose the gate separately, so users will enable
it by turning on the ASPEED_CLK_SDIO divisor.
Signed-off-by: Joel Stanley <joel@jms.id.au>
[aj: Minor style cleanup]
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lkml.kernel.org/r/20190710141009.20651-1-andrew@aj.id.au
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big char/misc driver pull request for 5.4-rc1.
As has been happening in previous releases, more and more individual
driver subsystem trees are ending up in here. Now if that is good or
bad I can't tell, but hopefully it makes your life easier as it's more
of an aggregation of trees together to one merge point for you.
Anyway, lots of stuff in here:
- habanalabs driver updates
- thunderbolt driver updates
- misc driver updates
- coresight and intel_th hwtracing driver updates
- fpga driver updates
- extcon driver updates
- some dma driver updates
- char driver updates
- android binder driver updates
- nvmem driver updates
- phy driver updates
- parport driver fixes
- pcmcia driver fix
- uio driver updates
- w1 driver updates
- configfs fixes
- other assorted driver updates
All of these have been in linux-next for a long time with no reported
issues"
* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits)
misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation
habanalabs: correctly cast variable to __le32
habanalabs: show correct id in error print
habanalabs: stop using the acronym KMD
habanalabs: display card name as sensors header
habanalabs: add uapi to retrieve aggregate H/W events
habanalabs: add uapi to retrieve device utilization
habanalabs: Make the Coresight timestamp perpetual
habanalabs: explicitly set the queue-id enumerated numbers
habanalabs: print to kernel log when reset is finished
habanalabs: replace __le32_to_cpu with le32_to_cpu
habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64
habanalabs: Handle HW_IP_INFO if device disabled or in reset
habanalabs: Expose devices after initialization is done
habanalabs: improve security in Debug IOCTL
habanalabs: use default structure for user input in Debug IOCTL
habanalabs: Add descriptive name to PSOC app status register
habanalabs: Add descriptive names to PSOC scratch-pad registers
habanalabs: create two char devices per ASIC
habanalabs: change device_setup_cdev() to be more generic
...
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into char-misc-next
Georgi writes:
interconnect patches for 5.4
Here are the interconnect driver updates for the 5.4-rc1 merge window.
- New feature is the path tagging support that helps with grouping and
aggregating the bandwidth requests into separate buckets based on a tag.
- The first user of the path tagging is the Qualcomm sdm845 driver that
now implements support for wake/sleep sets. This allows consumer drivers
to express their bandwidth needs for the different CPU power states.
- New interconnect driver for the qcs404 platforms and a driver that
communicates bandwidth requests with remote processor over shared memory.
- Cleanups and fixes.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
* tag 'icc-5.4-rc1' of https://git.linaro.org/people/georgi.djakov/linux:
drivers: qcom: Add BCM vote macro to header
interconnect: qcom: remove COMPILE_TEST from CONFIG_INTERCONNECT_QCOM_QCS404
interconnect: qcom: Add QCS404 interconnect provider driver
interconnect: qcom: Add interconnect RPM over SMD driver
dt-bindings: interconnect: Add Qualcomm QCS404 DT bindings
interconnect: qcom: Add tagging and wake/sleep support for sdm845
interconnect: Add pre_aggregate() callback
interconnect: Add support for path tags
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The macro to generate a Bus Controller Manager (BCM) TCS command is used
by the interconnect driver but might also be interesting to other
drivers that need to construct TCS commands for sub processors so move
it out of the sdm845 specific file and into the header.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Pull ARM DT updates from Arnd Bergmann:
"This is another huge branch with close to 450 changessets related to
devicetree files, roughly half of this for 32-bit and 64-bit
respectively. There are lots of cleanups and additional hardware
support for platforms we already support based on SoCs from Renesas,
ST-Microelectronics, Intel/Altera, Rockchips, Allwinner, Broadcom and
other manufacturers.
A total of 6 new SoCs and 37 new boards gets added this time, one more
SoC will come in a follow-up branch. Most of the new boards are for
64-bit ARM SoCs, the others are typically for the 32-bit Cortex-A7.
Going more into details for SoC platforms with new hardware support:
- The Snapdragon 855 (SM8150) is Qualcomm's current high-end phone
platform, usually paired with an external 5G modem. So far we only
support the Qualcomm SM8150 MTP reference platform, but no actual
products.
- For the slightly older Qualcomm platforms, support for several
interesting products is getting added: Three laptops based on
Snapdragon 835/MSM8998 (Asus NovaGo, HP Envy X2 and Lenovo Miix
630), one laptop based on Snapdragon 850/sdm850 (Lenovo Yoga C630)
and several phones based on the older Snapdragon 410/MSM8916
(Samsung A3 and A5, Longcheer L8150 aka Android One 2nd gen "seed"
aka Wileyfox Swift).
- Mediatek MT7629 is a new wireless network router chip, similar to
the older MT7623. It gets added together with the reference board
implementation.
- Allwinner V3 is a repackaged version of the existing low-end V3s
chip, and is used in the tiny Lichee Pi Zero plus, also added here.
There is also a new TV set-top box based on Allwinner H6, the Tanix
TX6, and the eMMC variant of the Olimex A64-Olinuxino development
board.
- NXP i.MX8M Nano is a new member of the ever-expanding i.MX SoC
family, similar to the i.MX8M Mini. As usual, there is a large
number of new boards for i.MX SoCs: Einfochips i.MX8QXP AI_ML,
SolidRun Hummingboard Pulse baseboard and System-on-Module,
Boundary Devices i.MX8MQ Nitrogen8M, and TechNexion
PICO-PI-IMX8M-DEV for the 64-bit i.MX8 line. For 32-bit, we get the
Kontron i.MX6UL N6310 SoM with two baseboards, the PHYTEC
phyBOARD-Segin SoM with three baseboards, and the Zodiac Inflight
Innovations i.MX7 RMU2 board.
- In a different NXP product line, the Layerscape LS1046A "Freeway"
reference board gets added.
- Amlogic SM1 (S905X3) and G12B (S922X, A311D) are updated chips from
their set-top-box line and smart speaker with newer CPU and GPU
cores compared to their predecessors. Both are now also supported
by the Khadas VIM3 development board series, and the dts files for
that get reorganized a bit to better deal with all variants.
Another board based on SM1 that gets added is the SEI Robotics
SEI610.
- There are a handful of new x86 and Power9 server boards using
Aspeed BMC chips that are gaining support for running Linux on the
BMC through the OpenBMC project: Facebook
Minipack/Wedge100/Wedge40, Lenovo Hr855xg2, and Mihawk. Notably
these are still new machines using SoCs based on the ARM9 and ARM11
CPU cores, as support for the new Cortex-A7 based AST2600 is still
ramping up.
- There are three new end-user products using 32-bit Rockchips SoCs:
Mecer Xtreme Mini S6 is an Android "mini PC" box based on the
low-end RK3229 chip, while the two AOpen products Chromebox Mini
(Fievel) and Chromebase Mini (Tiger) run ChromeOS and are meant for
commercial settings(digital signage, PoS, ...).
- One more single-board computer based on the popular 64-bit RK3399
is added: the Leez RK3399 P710"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (467 commits)
arm64: dts: qcom: Add Lenovo Yoga C630
ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit
ARM; dts: aspeed: mihawk: File should not be executable
ARM: dts: aspeed: swift: Change power supplies to version 2
ARM: dts: aspeed: vesnin: Add secondary SPI flash chip
ARM: dts: aspeed: vesnin: Add wdt2 with alt-boot option
ARM: dts: aspeed-g4: Add all flash chips
ARM: dts: exynos: Enable GPU/Mali T604 on Arndale board
ARM: dts: exynos: Enable GPU/Mali T604 on Chromebook Snow
ARM: dts: exynos: Add GPU/Mali T604 node to Exynos5250
ARM: dts: exynos: Fix min/max buck4 for GPU on Arndale board
ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks
ARM: dts: exynos: Remove not accurate secondary ADC compatible
arm64: dts: rockchip: limit clock rate of MMC controllers for RK3328
arm64: dts: meson-sm1-sei610: add stdout-path property back
arm64: dts: meson-sm1-sei610: enable DVFS
arm64: dts: khadas-vim3: add support for the SM1 based VIM3L
dt-bindings: arm: amlogic: add Amlogic SM1 based Khadas VIM3L bindings
arm64: dts: khadas-vim3: move common nodes into meson-khadas-vim3.dtsi
arm64: dts: meson: g12a: add reset to tdm formatters
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt
i.MX device tree update with new clocks:
- A series from Anson Huang to add i.MX8MN SoC and DDR4 EVK board
device tree support.
- Add DSP device tree support for i.MX8QXP SoC.
* tag 'imx-dt-clkdep-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: imx8qxp: Add DSP DT node
arm64: dts: imx8mn: Add cpu-freq support
arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support
arm64: dts: imx8mn-ddr4-evk: Add i2c1 support
arm64: dts: freescale: Add i.MX8MN DDR4 EVK board support
arm64: dts: imx8mn: Add gpio-ranges property
arm64: dts: freescale: Add i.MX8MN dtsi support
clk: imx8: Add DSP related clocks
clk: imx: Add support for i.MX8MN clock driver
clk: imx: Add API for clk unregister when driver probe fail
clk: imx8mm: Make 1416X/1443X PLL macro definitions common for usage
dt-bindings: imx: Add clock binding doc for i.MX8MN
Link: https://lore.kernel.org/r/20190825153237.28829-4-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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i.MX8QXP contains Hifi4 DSP. There are four clocks
associated with DSP:
* dsp_lpcg_core_clk
* dsp_lpcg_ipg_clk
* dsp_lpcg_adb_aclk
* ocram_lpcg_ipg_clk
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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This patch adds i.MX8MN clock driver support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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For i.MX clock drivers probe fail case, clks should be unregistered
in the return path, this patch adds a common API for i.MX clock
drivers to unregister clocks when fail.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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1416X/1443X PLL are used on i.MX8MM and i.MX8MN and maybe
other i.MX8M series SoC later, the macro definitions of
these PLLs' initialization should be common for usage.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt
arm64: dts: Amlogic updates for v5.4
Highlights
- new SoCs (G12B family): S922X, A311D
- new SoCs (SM1 family): S905X3
- new board: SEI Robotics SEI610 (SM1/S905X3)
- new board: Khadas VIM3 (G12B/A311D)
- DVFS/CPUfreq support on G12[AB] family
* tag 'amlogic-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: (40 commits)
arm64: dts: add support for SM1 based SEI Robotics SEI610
dt-bindings: arm: amlogic: add SEI Robotics SEI610 bindings
dt-bindings: arm: amlogic: add SM1 bindings
arm64: dts: meson-g12b-odroid-n2: enable DVFS
arm64: dts: meson-g12b-khadas-vim3: add initial device-tree
dt-bindings: arm: amlogic: fix x96-max/sei510 section in amlogic.yaml
arm64: dts: amlogic: g12 CPU timers stop in suspend
arm64: dts: meson-g12b: support a311d and s922x cpu operating points
dt-bindings: arm: amlogic: add support for the Khadas VIM3
dt-bindings: arm: amlogic: add bindings for the Amlogic G12B based A311D SoC
dt-bindings: arm: amlogic: add bindings for G12B based S922X SoC
arm64: dts: meson: add video decoder entries
arm64: dts: meson-gx: add video decoder entry
dt-bindings: media: amlogic,vdec: add default compatible
arm64: dts: meson: add ethernet fifo sizes
arm64: dts: meson-g12b: add cpus OPP tables
arm64: dts: meson-g12a: enable DVFS on G12A boards
arm64: dts: meson-g12a: add cpus OPP table
arm64: dts: meson-g12-common: add pwm_a on GPIOE_2 pinmux
arm64: dts: move common G12A & G12B modes to meson-g12-common.dtsi
...
Link: https://lore.kernel.org/r/7hr25fbi4v.fsf@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Expose the CPUB clock id to add DVFS to the second CPU cluster of
the Amlogic G12B SoC.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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In order to implement clock switching for the CLKID_CPU_CLK and
CLKID_CPUB_CLK, notifiers are added on specific points of the
clock tree :
cpu_clk / cpub_clk
| \- cpu_clk_dyn
| | \- cpu_clk_premux0
| | |- cpu_clk_postmux0
| | | |- cpu_clk_dyn0_div
| | | \- xtal/fclk_div2/fclk_div3
| | \- xtal/fclk_div2/fclk_div3
| \- cpu_clk_premux1
| |- cpu_clk_postmux1
| | |- cpu_clk_dyn1_div
| | \- xtal/fclk_div2/fclk_div3
| \- xtal/fclk_div2/fclk_div3
\ sys_pll / sys1_pll
This for each cluster, a single one for G12A, two for G12B.
Each cpu_clk_premux1 tree is marked as read-only and CLK_SET_RATE_NO_REPARENT,
to be used as "parking" clock in a safe clock frequency.
A notifier is added on each cpu_clk_premux0 to detech when CCF want to
change the frequency of the cpu_clk_dyn tree.
In this notifier, the cpu_clk_premux1 tree is configured to use the xtal
clock and then the cpu_clk_dyn is switch to cpu_clk_premux1 while CCF
updates the cpu_clk_premux0 tree.
A notifier is added on each sys_pll/sys1_pll to detect when CCF wants to
change the PLL clock source of the cpu_clk.
In this notifier, the cpu_clk is switched to cpu_clk_dyn while CCF
updates the sys_pll/sys1_pll frequency.
A third small notifier is added on each cpu_clk / cpub_clk and cpu_clk_dyn,
add a small delay at PRE_RATE_CHANGE/POST_RATE_CHANGE to let the other
notofiers change propagate before changing the cpu_clk_premux0 and sys_pll
clock trees.
This notifier set permits switching the cpu_clk / cpub_clk without any
glitches and using a safe parking clock while switching between sub-GHz
clocks using the cpu_clk_dyn tree.
This setup has been tested and validated on the Amlogic G12A and G12B
SoCs running the arm64 cpuburn at [1] and cycling between all the possible
cpufreq translations of each cluster and checking the final frequency using
the clock-measurer, script at [2].
[1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S
[2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Add a clock driver for the cpu dynamic divider, this divider needs
to have a flag set before setting the divider value then removed
while writing the new value to the register.
This drivers implements this behavior and will be used essentially
on the Amlogic G12A and G12B SoCs for cpu clock trees.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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Introduce the clk_hw_set_parent() provider call to change parent of
a clock by using the clk_hw pointers.
This eases the clock reparenting from clock rate notifiers and
implementing DVFS with simpler code avoiding the boilerplates
functions as __clk_lookup(clk_hw_get_name()) then clk_set_parent().
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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The clk input function which allows clock controllers to register a bypass
clock from a clock producer is no longer needed anymore since meson clock
controllers have migrated to a new parent allocation method.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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During probe, bypass clocks (i.e. ee-in-xtal) are made from device-tree
inputs to provide input clocks which can be access through global name.
The cons of this method are the duplicated clocks, means more string
comparison.
Specify parent directly with device-tree clock name.
Remove the bypass clock registration from the ee probe function.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (ie. when
all clocks are local to the controller) and use .parent_data otherwise.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (ie. when
all clocks are local to the controller) and use .parent_data otherwise.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (ie. when
all clocks are local to the controller) and use .parent_data otherwise.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (ie. when
all clocks are local to the controller) and use .parent_data otherwise.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (ie. when
all clocks are local to the controller) and use .parent_data otherwise.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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During probe, bypass clocks (i.e. ao-in-xtal) are made from device-tree
inputs to provide input clocks which can be access through global name.
The cons of this method are the duplicated clocks, means more string
comparison.
Specify parent directly with device-tree clock name.
Function to regiter bypass clocks is removed.
Input parameters from meson aoclk data structure are deprecated and then
deleted since all aoclk files are migrated.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (when parent
clocks are localy declared in the controller) and use .parent_data
otherwise.
Remove clk input helper and all bypass clocks (declared in probe function)
which are no longer used since we are able to use device-tree clock name
directly.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (when parent
clocks are localy declared in the controller) and use .parent_data
otherwise.
Remove clk input helper and all bypass clocks (declared in probe function)
which are no longer used since we are able to use device-tree clock name
directly.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.
Migrate to the new way by using .parent_hws where possible (when parent
clocks are localy declared in the controller) and use .parent_data
otherwise.
Remove clk input helper and all bypass clocks (declared in probe function)
which are no longer used since we are able to use device-tree clock name
directly.
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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