2113 Commits

Author SHA1 Message Date
Thierry Reding
1f44febf71 soc/tegra: fuse: Add Tegra234 support
Add support for FUSE block found on the Tegra234 SoC, which is largely
similar to the IP found on previous generations.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:29 +02:00
Thierry Reding
52e6d399a4 soc/tegra: fuse: Implement tegra_is_silicon()
This function can be used by drivers to determine whether code is
running on silicon or on a simulation platform.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:26 +02:00
Thierry Reding
775edf7856 soc/tegra: fuse: Extract tegra_get_platform()
This function extracts the PRE_SI_PLATFORM field from the HIDREV
register and can be used to determine which platform the kernel runs on
(silicon, simulation, ...). Note that while only Tegra194 and later
define this field, it should be safe to call this on prior generations
as well since this field should read as 0, indicating silicon.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:55:22 +02:00
Qilong Zhang
2899347249 soc: qcom: llcc: use devm_platform_ioremap_resource_byname()
Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20200916111517.99670-1-zhangqilong3@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-17 04:24:49 +00:00
Yoshihiro Shimoda
1b4298f000 soc: renesas: r8a779a0-sysc: Add r8a779a0 support
Add support for R-Car V3U (R8A779A0) SoC power areas and register
access, because register specification differs from R-Car Gen2/3.

Inspired by patches in the BSP by Tho Vu.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599810232-29035-5-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-16 08:57:31 +02:00
Sibi Sankar
ba34f977c3 soc: qcom: apr: Fixup the error displayed on lookup failure
APR client incorrectly prints out "ret" variable on pdr_add_lookup failure,
it should be printing the error value returned by the lookup instead.

Fixes: 8347356626028 ("soc: qcom: apr: Add avs/audio tracking functionality")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200915154232.27523-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-15 16:12:59 +00:00
Sibi Sankar
7a366707bb soc: qcom: pdr: Fixup array type of get_domain_list_resp message
The array type of get_domain_list_resp is incorrectly marked as NO_ARRAY.
Due to which the following error was observed when using pdr helpers with
the downstream proprietary pd-mapper. Fix this up by marking it as
VAR_LEN_ARRAY instead.

Err logs:
qmi_decode_struct_elem: Fault in decoding: dl(2), db(27), tl(160), i(1), el(1)
failed to decode incoming message
PDR: tms/servreg get domain list txn wait failed: -14
PDR: service lookup for tms/servreg failed: -14

Tested-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Fixes: fbe639b44a82 ("soc: qcom: Introduce Protection Domain Restart helpers")
Reported-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200914145807.1224-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-14 23:53:29 +00:00
Konrad Dybcio
a32a43e00e soc: qcom: socinfo: Add msm8992/4 and apq8094 SoC IDs
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200602201229.322578-1-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-14 23:27:24 +00:00
Olof Johansson
bd2fad8cd3 This pull request contains Broadcom SoCs drivers changes for 5.10,
please pull the following:
 
 - Alvaro adds support for the BCM63xx (DSL) SoCs power domain controller
   and adds support for the 6318, 6328, 6362, 63268.
 
 - Florian adds support for tuning the Bus Interface Unit on 72164 and
   72165, enables the Brahma-B53 and Cortex-A72 read-ahead cache for the
   64-bit capable ARCH_BRCMSTB platforms, and finally updates the GISB
   driver to support breakpoint notifications.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEm+Rq3+YGJdiR9yuFh9CWnEQHBwQFAl9ZkK4ACgkQh9CWnEQH
 BwS8bQ//dn66KKeK2Fcw6pofTypsE7y69P2Jz7vA8IkYigNaNwIWABXXE+/FXrPE
 ZVk9se/ZAI/kvWQXKj5T2JyjXWU8jphidwX0aK1xUymab60W6EdZUJcTiKdsdamA
 KGSAQ0jjWaNuZHnNR2nsqa4OLDrnQz2ujdWCnz9SSBNtPFcAknbj+nkicbpWmHb7
 1fjBXg7e+RkUuaHGNETIkKnjdEA/e2frlTCzwendsLTgJkhbr9j9y6jAOtJiXjE4
 +UQd84cEPsuvSrx6dx6pnCVoL19m2aPFE9JTDVCXVYCOinjm+gQDXQTl8w+HvoZn
 /w0deVOJSOF+YHoRbC7xLghaY2jjRmM86jjmopSB7/OF5KUbkuMj1Nz5xQxUI7gA
 BuvRQvry+TedEiY1vfsDnrJZpv3vZTS2BRkTfiZXvhtfDM/unMr9L6vScxzQU7gA
 Gj2hPEai3bB+pfTB+e1H4IAWFmQXgS+3Q+JpCtgHjZFZtmYy89MaJK5TY88pYceR
 ZfnK6aHhHXNF3L594CYCNxZBovC2Jt/Mp6+MIPgFpvwTFKhqoLIjUP5bnuZRqHZ6
 yVz0WJgU6R7FPtp8uTwES5moreeAWMdVdzHdZvTkOrPzRvBpT1tMWpk00eFaAn7E
 PlTdM5OMuxDi2tZKcLNCW92To1Un0YRnMLZh8Q5sSS9MekY++hk=
 =njcZ
 -----END PGP SIGNATURE-----

Merge tag 'arm-soc/for-5.10/drivers' of https://github.com/Broadcom/stblinux into arm/drivers

This pull request contains Broadcom SoCs drivers changes for 5.10,
please pull the following:

- Alvaro adds support for the BCM63xx (DSL) SoCs power domain controller
  and adds support for the 6318, 6328, 6362, 63268.

- Florian adds support for tuning the Bus Interface Unit on 72164 and
  72165, enables the Brahma-B53 and Cortex-A72 read-ahead cache for the
  64-bit capable ARCH_BRCMSTB platforms, and finally updates the GISB
  driver to support breakpoint notifications.

* tag 'arm-soc/for-5.10/drivers' of https://github.com/Broadcom/stblinux:
  bus: brcmstb_gisb: Add support for breakpoint interrupts
  dt-bindings: bus: Document breakpoint interrupt for gisb-arb
  soc: bcm: brcmstb: biuctrl: Change RAC data line prefetching after 4 consecutive lines
  soc: bcm: brcmstb: biuctrl: Change RAC prefetch distance from +/-1 to +/- 2
  soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72165
  soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72164
  MIPS: BMIPS: dts: add BCM63268 power domain support
  MIPS: BMIPS: dts: add BCM6362 power domain support
  MIPS: BMIPS: dts: add BCM6328 power domain support
  soc: bcm: add BCM63xx power domain driver
  MIPS: BMIPS: add BCM6318 power domain definitions
  MIPS: BMIPS: add BCM63268 power domain definitions
  MIPS: BMIPS: add BCM6362 power domain definitions
  MIPS: BMIPS: add BCM6328 power domain definitions
  dt-bindings: soc: brcm: add BCM63xx power domain binding
  soc: bcm: brcmstb: biuctrl: Enable Read-ahead cache
  bus: brcmstb_gisb: Shorten prints

Link: https://lore.kernel.org/r/20200912032153.1216354-3-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:40:18 -07:00
Olof Johansson
989286ffe8 Add initial genpd support for omaps to drop more platform data
We now drop legacy platform data for RTC on am3, am4 and dra7.
 And we add initial genpd support for PRM (Power and Reset Manager)
 and use it to drop legacy platform data for am3 sgx and omap4/5
 l4_abe interconnect instance.
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEkgNvrZJU/QSQYIcQG9Q+yVyrpXMFAl9Qsw8RHHRvbnlAYXRv
 bWlkZS5jb20ACgkQG9Q+yVyrpXNnORAAwV+49gsZdnGLQxqzLThegu5auzfQuRdZ
 E82KGonAjoHONaBdk+pgVrEePpcJTUbUNQm8HeQRjusp/5CR8C+S6A9/RD+R1crc
 F+9gDsbTuBSkUkOAVkMT6oGPom8zN8bISJ4gFymLoGsT7MTD3K1nK6wVXpRhCJs6
 R2z/KpFIPMfz0psuYEgl5Uwu9RA+yi7P8ePulEBoOfOfMU/70nTRNhFoAAQK2vyO
 fvQCRY+4gf6Y76iY+WBXlf/2Iq4Kd4Rbs/Jr3MBC9ov8owqZKlnZ4u3HXrCQPin5
 ULS256Een4g8lnVZr48Dc0v6PWvu3AoHH6+gGsxFozKvmh+x5UXW+gUYozsvd/cW
 y61RARwo0F1ZJRil95Qgp/0jk0uAjTPdU5q5/owMIaFEoHK+1oHruj7dajdoJ22y
 9URXuCMwMKJIcefGvu8BWwuCZQx0zF16NffYmqkm3DPIobzNzCcMIbKNq6LPpgD4
 AnDtaw9Bhoq3O4/pVI3AMqEpBtHRJdWBoObFG3Lg3TpYDIrWSPzjaDo+HNwgD5u4
 7a1AqVrl1ZkTZIuJSfS7zZdeL5l8K02qYM1yjX13PderGTCzGmFVR4qRmItT9oVS
 zIl0mnoFngUxw9qiTRHgkcQ90Z65KwWcJDBoX5bVxanEnOQXdToaJ3TG5Fh1L4lv
 MWJhSe46Pdw=
 =w5Zl
 -----END PGP SIGNATURE-----

Merge tag 'omap-for-v5.10/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc

Add initial genpd support for omaps to drop more platform data

We now drop legacy platform data for RTC on am3, am4 and dra7.
And we add initial genpd support for PRM (Power and Reset Manager)
and use it to drop legacy platform data for am3 sgx and omap4/5
l4_abe interconnect instance.

* tag 'omap-for-v5.10/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Drop legacy platform data for dra7 rtcss
  ARM: OMAP2+: Drop legacy platform data for am3 and am4 rtc
  soc: ti: pm33xx: Simplify RTC usage to prepare to drop platform data
  ARM: dts: Configure omap4 and 5 l4_abe for genpd and drop platform data
  ARM: dts: Configure am3 and am4 sgx for genpd and drop platform data
  soc: ti: omap-prm: Configure omap4 and 5 l4_abe power domain
  soc: ti: omap-prm: Configure sgx power domain for am3 and am4
  soc: ti: omap-prm: Add basic power domain support
  dt-bindings: omap: Update PRM binding for genpd

Link: https://lore.kernel.org/r/pull-1599132307-761202@atomide.com-2
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:17:42 -07:00
Olof Johansson
c9c7ddd0d7 Versatile SoC updates for the v5.10 kernel cycle:
- Drop a static qualifier in integrator_soc_init()
 - Remove Integrator and Versatile from PHYS_OFFSET
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl9OEHkACgkQQRCzN7AZ
 XXPFcQ/+JV/W2nI5QQ0tE0OpUwDdfmkU93dEgF38tNB97LnG/mhS5T7u78u8/d8H
 CBurShFXq3I/75Gfxno741K1h3qtf0XlYsuQ9vN0aDP3lqcgaQtfAlYDA/cg7z6a
 ppanIC/Akxu6zEETPCbG+j0n/TIQqWuT+0y+65jbeKm+eAEVDy/sPIXuVd5YTDd2
 8f1EjLywMzSDfmn3YP6AOzoQWg0HPC52bzea0MAFv0L9vOa2X4/SkJnFGPyJu46h
 jgrobaaqOKNq/7lxUfXBsfEEE5QbEQ26G67rIVAjYGk8CjdfWg0qJUBsDpKgnfVt
 79VnKqk13YJ2ywlD2+IG+rbWraE+ZI9aShITx3JFR3JM9Nsjbae/myYN+9Hqh75v
 Sxs7V0mEqtt4sf0+Dxvw97FmOGIB827V1q4kzglk9jiP1flf+orVhFYjtbNzEQld
 RTceCK9W4thPkJJnCx6id0GkYG0EnIaCrfY3pMuZDvO45M15E9zdPD+0FzwtYtFE
 jcGtINCfKOUJujLu3QfwbheInHTY+MnEo6crI0q7MRElg8YDtSWiSjyBJ2A/Fcs1
 iGIrrthBNoBfNBCODBuYE8WbjTpZ8SX8OQLdjcFqjmzrTlgdcIJQZVqNGn2fGaEi
 t5Ga2+gU3YFcqm9XsK7tWNMbwi+IvxzkjWRdPDplNoYClcK/i5w=
 =xtzo
 -----END PGP SIGNATURE-----

Merge tag 'versatile-soc-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into arm/soc

Versatile SoC updates for the v5.10 kernel cycle:

- Drop a static qualifier in integrator_soc_init()
- Remove Integrator and Versatile from PHYS_OFFSET

* tag 'versatile-soc-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
  ARM: versatile: Remove Integrator and Realview from PHYS_OFFSET
  soc: integrator: Drop pointless static qualifier in integrator_soc_init()

Link: https://lore.kernel.org/r/CACRpkdYYDSg8FAjJAqew5yEu7H1Y3E1rPN9TL25K31T=QWATuA@mail.gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:16:09 -07:00
Olof Johansson
465c335bb5 Samsung S3C24xx and S3C64xx machine code cleanup for v5.10
Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
 also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
 Bergmann work which Krzysztof Kozlowski took over, rebased and polished.
 
 The goal is to cleanup, merge and finally make the Samsung S3C24xx and
 S3C64xx architectures multiplatform.  The multiplatform did not happen
 yet here - just cleaning up and merging into one arch/arm/mach-s3c
 directory.  However this is step forward for multiplatform or at least
 to keep this code still maintainable.
 
 This pulls also branch with changes for Samsung SoC sound drivers from
 broonie/sound because the cleanups there were part of this series and
 all further patches depend on them.
 -----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCgAuFiEE3dJiKD0RGyM7briowTdm5oaLg9cFAl9NGucQHGtyemtAa2Vy
 bmVsLm9yZwAKCRDBN2bmhouD1zzWD/0T5JdPls++8JUK04hxkunMJO3Ye2ir/a2C
 YAI2M6fbOludcPeGCRnPBZ3uTbeSOXFrV6UuSVi8EVKoAb0EV3G50XGQecmy/TVx
 nq/c90gtnsODL0Kxjm0767WZl9clKaIE3+VNSyQXAhqJqXK8A1L8ovsUpQEj6fr4
 vaNQi6lW7o0r98OEB14M0z59lSWjanUZ33/R22L3AsRihlJTH0Sye2+zVG85LfMD
 5okekSHndt2/NCUxgLTZIkp/cD/pzmhMRZTl1zWvZPPFsbzpuB9wZt46b7vkEzuN
 NgPElEB9AJgyh/28D064lER6TFhz3TcATZjmEIXX+3tYIaoA2lj60QiSejM2FyBk
 U5a0DYAyzwNs4R1GSQxrKnQS1AXQ+yoDniPcyNaSmuZbxaodAs9Hjxg9KfJ2bfs5
 DFfSUJhf1Uam8UYolMbXqSkhd2KQjXpkF0eLK7sGk3wanO+YEqVs777fHpwIPLmd
 767PD0YN+EfDUwmXAJ5Jgv2kvOJIGul7BTgpWtbRHEaDvLHRQl5OhjsWsj9kWCFX
 fx0Jz1sAUqi+gNq3XUFM88/VPEkTgejmVRULnBxqVsar5b/0BeRJEgA6Ljycv0Jv
 2ux5zdMuX/+Xc4zdaJOWaL8NqRuT8nSynKXbWHTzJk4cF3p12/g3q3LOHBBLcLL6
 AzTEA6iZ0w==
 =bjMI
 -----END PGP SIGNATURE-----

Merge tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung S3C24xx and S3C64xx machine code cleanup for v5.10

Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
Bergmann work which Krzysztof Kozlowski took over, rebased and polished.

The goal is to cleanup, merge and finally make the Samsung S3C24xx and
S3C64xx architectures multiplatform.  The multiplatform did not happen
yet here - just cleaning up and merging into one arch/arm/mach-s3c
directory.  However this is step forward for multiplatform or at least
to keep this code still maintainable.

This pulls also branch with changes for Samsung SoC sound drivers from
broonie/sound because the cleanups there were part of this series and
all further patches depend on them.

* tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (62 commits)
  ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
  ARM: s3c: Cleanup from old plat-samsung include
  ARM: s3c: make headers local if possible
  ARM: s3c: move into a common directory
  ARM: s3c24xx: stop including mach/hardware.h from mach/io.h
  cpufreq: s3c24xx: move low-level clk reg access into platform code
  cpufreq: s3c2412: use global s3c2412_cpufreq_setrefresh
  ARM: s3c: remove cpufreq header dependencies
  cpufreq: s3c24xx: split out registers
  fbdev: s3c2410fb: remove mach header dependency
  ARM: s3c24xx: bast: avoid irq_desc array usage
  ARM: s3c24xx: spi: avoid hardcoding fiq number in driver
  ARM: s3c24xx: include mach/irqs.h where needed
  ARM: s3c24xx: move s3cmci pinctrl handling into board files
  ARM: s3c24xx: move iis pinctrl config into boards
  ARM: s3c24xx: move spi fiq handler into platform
  ARM: s3c: adc: move header to linux/soc/samsung
  ARM: s3c24xx: move irqchip driver back into platform
  ARM: s3c24xx: move regs-spi.h into spi driver
  ARM: s3c64xx: remove mach/hardware.h
  ...

Link: https://lore.kernel.org/r/20200831154751.7551-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:15:01 -07:00
Peter Ujfalusi
4f02044123 soc: ti: k3-socinfo: Add entry for J7200
Update K3 chipinfo driver to support new TI J7200 SoC.
It's JTAG PARTNO is 0xBB6D.

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:47:39 -07:00
Grzegorz Jaszczyk
ba59c9b43c soc: ti: pruss: support CORECLK_MUX and IEPCLK_MUX
The IEPCLK_MUX is present on all SoCs whereas the CORECLK_MUX is present
only on AM65x SoCs and J721E. Add support for both these CLK muxes.

This allows the clock rates and clock parents for these to be controlled
through DT leveraging the clk infrastructure for configuring the default
parents and rates.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:47:10 -07:00
Tero Kristo
efa5c01cd7 soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one
Current implementation of the genpd support over TI SCI uses a single
genpd across the whole SoC, and attaches multiple devices to this. This
solution has its drawbacks, like it is currently impossible to attach
more than one power domain to a device; the core genpd implementation
requires one genpd per power-domain entry in DT for a single device.
Also, some devices like USB apparently require their own genpd during
probe time, the current shared approach in use does not work at all.

Switch the implementation over to use a single genpd per power domain
entry in DT. The domains are registered with the onecell approach, but
we also add our own xlate service due to recent introduction of the
extended flag for TI SCI PM domains; genpd core xlate service requires
a single cell per powerdomain, but we are using two cells.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:47:08 -07:00
Suman Anna
557003a98f soc: ti: pruss: Enable support for ICSSG subsystems on K3 J721E SoCs
The K3 J721E family of SoCs have a revised version of the PRU-ICSS (ICSSG)
processor subsystem present on K3 AM65x SoCs. These SoCs contain typically
two ICSSG instances named ICSSG0 and ICSSG1. The two ICSSGs are identical
to each other for the most part with minor SoC integration differences and
capabilities. The ICSSG1 supports slightly enhanced features like SGMII
mode Ethernet, while the ICSSG0 instance is limited to MII mode only.

There is no change in the Interrupt Controller w.r.t AM65x. All other
integration aspects are very similar to the ICSSGs on AM65x SoCs.

The existing pruss platform driver has been updated to support these new
ICSSG instances through new J721E specific compatibles.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:37 -07:00
Suman Anna
6530cd9b20 soc: ti: pruss: Enable support for ICSSG subsystems on K3 AM65x SoCs
The K3 AM65x family of SoCs have the next generation of the PRU-ICSS
processor subsystem capable of supporting Gigabit Ethernet, and is
commonly referred to as ICSSG. These SoCs contain typically three
ICSSG instances named ICSSG0, ICSSG1 and ICSSG2. The three ICSSGs are
identical to each other for the most part with minor SoC integration
differences and capabilities. The ICSSG2 supports slightly enhanced
features like SGMII mode Ethernet, while the ICSS0 and ICSSG1 instances
are limited to MII mode only.

The ICSSGs on K3 AM65x SoCs are in general super-sets of the PRUSS on the
AM57xx/66AK2G SoCs. They include two additional auxiliary PRU cores called
RTUs and few other additional sub-modules. The interrupt integration is
also different on the K3 AM65x SoCs and are propagated through various
SoC-level Interrupt Router and Interrupt Aggregator blocks. Other IP level
differences include different constant tables, differences in system event
interrupt input sources etc. They also do not have a programmable module
reset line like those present on AM33xx/AM43xx SoCs. The modules are reset
just like any other IP with the SoC's global cold/warm resets.

The existing pruss platform driver has been updated to support these new
ICSSG instances through new AM65x specific compatibles. A build dependency
with ARCH_K3 is added to enable building all the existing PRUSS platform
drivers for this ARMv8 platform.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:36 -07:00
Suman Anna
3227c8daac soc: ti: pruss: Add support for PRU-ICSS subsystems on 66AK2G SoC
The 66AK2G SoC supports two PRU-ICSS instances, named PRUSS0 and PRUSS1,
each of which has two PRU processor cores. The two PRU-ICSS instances
are identical to each other with few minor SoC integration differences,
and are very similar to the PRU-ICSS1 of AM57xx/AM43xx. The Shared Data
RAM size is larger and the number of interrupts coming into MPU INTC
is like the instances on AM437x. There are also few other differences
attributing to integration in Keystone architecture (like no SYSCFG
register or PRCM handshake protocols). Other IP level differences
include different constant table, differences in system event interrupt
input sources etc. They also do not have a programmable module reset
line like those present on AM33xx/AM43xx SoCs. The modules are reset
just like any other IP with the SoC's global cold/warm resets.

The existing PRUSS platform driver has been enhanced to support these
66AK2G PRU-ICSS instances through new 66AK2G specific compatible for
properly probing and booting all the different PRU cores in each
PRU-ICSS processor subsystem. A build dependency with ARCH_KEYSTONE
is added to enable the driver to be built in K2G-only configuration.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:36 -07:00
Suman Anna
ae19b8a145 soc: ti: pruss: Add support for PRU-ICSS subsystems on AM57xx SoCs
The AM57xx family of SoCs supports two PRU-ICSS instances, each of
which has two PRU processor cores. The two PRU-ICSS instances are
identical to each other, and are very similar to the PRU-ICSS1 of
AM33xx/AM43xx except for a few minor differences like the RAM sizes
and the number of interrupts coming into the MPU INTC. They do
not have a programmable module reset line unlike those present on
AM33xx/AM43xx SoCs. The modules are reset just like any other IP
with the SoC's global cold/warm resets. Each PRU-ICSS's INTC is also
preceded by a Crossbar that enables multiple external events to be
routed to a specific number of input interrupt events. Any interrupt
event directed towards PRUSS needs this crossbar to be setup properly
on the firmware side.

The existing PRUSS platform driver has been enhanced to support
these AM57xx PRU-ICSS instances through new AM57xx specific
compatible for properly probing and booting all the different PRU
cores in each PRU-ICSS processor subsystem. A build dependency with
SOC_DRA7XX is also added to enable the driver to be built in
AM57xx-only configuration (there is no separate Kconfig option
for AM57xx vs DRA7xx).

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:35 -07:00
Suman Anna
78251639d3 soc: ti: pruss: Add support for PRU-ICSSs on AM437x SoCs
The AM437x SoCs have two different PRU-ICSS subsystems: PRU-ICSS1
and a smaller PRU-ICSS0. Enhance the PRUSS platform driver to support
both the PRU-ICSS sub-systems on these SoCs.

The PRU-ICSS1 on AM437x is very similar to the PRU-ICSS on AM33xx
except for few minor differences - increased Instruction RAM, increased
Shared Data RAM2, and 1 less interrupt (PRUSS host interrupt 7 which is
redirected to the other PRUSS) towards the MPU INTC. The PRU-ICSS0 is
a cut-down version of the IP, with less DRAM per PRU, no Shared DRAM etc.
It also does not have direct access to L3 bus regions, there is a single
interface to L3 for both PRUSS0 and PRUSS1, and it would have to go
through the PRUSS1's interface. The PRUSS_SYSCFG register is reserved on
PRUSS0, so any external access requires the programming the corresponding
PRUSS_SYSCFG register in PRUSS1. It does have its own dedicated I/O lines
though. Note that this instance does not support any PRU Ethernet related
use cases.

The adaptation uses SoC-specific compatibles in the driver and uses
a newly introduced pruss_match_private_data structure and the
pruss_get_private_data() function to retrieve a PRUSS instance specific
data using a device-name based lookup logic. The reset and the L3 external
access are managed by the parent interconnect ti-sysc bus driver so that
PRUSS1 and PRUSS0 can be independently supported.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:35 -07:00
Suman Anna
dc1129564a soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs
The Programmable Real-Time Unit - Industrial Communication
Subsystem (PRU-ICSS) is present on various TI SoCs such as
AM335x or AM437x or the Keystone 66AK2G. Each SoC can have
one or more PRUSS instances that may or may not be identical.
For example, AM335x SoCs have a single PRUSS, while AM437x has
two PRUSS instances PRUSS1 and PRUSS0, with the PRUSS0 being
a cut-down version of the PRUSS1.

The PRUSS consists of dual 32-bit RISC cores called the
Programmable Real-Time Units (PRUs), some shared, data and
instruction memories, some internal peripheral modules, and
an interrupt controller. The programmable nature of the PRUs
provide flexibility to implement custom peripheral interfaces,
fast real-time responses, or specialized data handling.

The PRU-ICSS functionality is achieved through three different
platform drivers addressing a specific portion of the PRUSS.
Some sub-modules of the PRU-ICSS IP reuse some of the existing
drivers (like davinci mdio driver or the generic syscon driver).
This design provides flexibility in representing the different
modules of PRUSS accordingly, and at the same time allowing the
PRUSS driver to add some instance specific configuration within
an SoC.

The PRUSS platform driver deals with the overall PRUSS and is
used for managing the subsystem level resources like various
memories and the CFG module. It is responsible for the creation
and deletion of the platform devices for the child PRU devices
and other child devices (like Interrupt Controller, MDIO node
and some syscon nodes) so that they can be managed by specific
platform drivers. The PRUSS interrupt controller is managed by
an irqchip driver, while the individual PRU RISC cores are
managed by a PRU remoteproc driver.

The driver currently supports the AM335x SoC, and support for
other TI SoCs will be added in subsequent patches.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:43:34 -07:00
Grygorii Strashko
95e7be062a soc: ti: k3: ringacc: add am65x sr2.0 support
The AM65x SR2.0 Ringacc has fixed errata i2023 "RINGACC, UDMA: RINGACC and
UDMA Ring State Interoperability Issue after Channel Teardown". This errata
also fixed for J271E SoC.

Use SOC bus data for K3 SoC identification and enable i2023 errate w/a only
for the AM65x SR1.0. This also makes obsolete "ti,dma-ring-reset-quirk" DT
property.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11 21:34:17 -07:00
Jason Yan
1893a2d526
soc: sunxi: sram: remove unneeded semicolon
Eliminate the following coccicheck warning:

drivers/soc/sunxi/sunxi_sram.c:197:2-3: Unneeded semicolon

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200910140546.1191280-1-yanaijie@huawei.com
2020-09-11 17:02:39 +02:00
Stephen Boyd
2bc20f3c84 soc: qcom: rpmh-rsc: Sleep waiting for tcs slots to be free
The busy loop in rpmh_rsc_send_data() is written with the assumption
that the udelay will be preempted by the tcs_tx_done() irq handler when
the TCS slots are all full. This doesn't hold true when the calling
thread is an irqthread and the tcs_tx_done() irq is also an irqthread.
That's because kernel irqthreads are SCHED_FIFO and thus need to
voluntarily give up priority by calling into the scheduler so that other
threads can run.

I see RCU stalls when I boot with irqthreads on the kernel commandline
because the modem remoteproc driver is trying to send an rpmh async
message from an irqthread that needs to give up the CPU for the rpmh
irqthread to run and clear out tcs slots.

 rcu: INFO: rcu_preempt self-detected stall on CPU
 rcu:     0-....: (1 GPs behind) idle=402/1/0x4000000000000002 softirq=2108/2109 fqs=4920
  (t=21016 jiffies g=2933 q=590)
 Task dump for CPU 0:
 irq/11-smp2p    R  running task        0   148      2 0x00000028
 Call trace:
  dump_backtrace+0x0/0x154
  show_stack+0x20/0x2c
  sched_show_task+0xfc/0x108
  dump_cpu_task+0x44/0x50
  rcu_dump_cpu_stacks+0xa4/0xf8
  rcu_sched_clock_irq+0x7dc/0xaa8
  update_process_times+0x30/0x54
  tick_sched_handle+0x50/0x64
  tick_sched_timer+0x4c/0x8c
  __hrtimer_run_queues+0x21c/0x36c
  hrtimer_interrupt+0xf0/0x22c
  arch_timer_handler_phys+0x40/0x50
  handle_percpu_devid_irq+0x114/0x25c
  __handle_domain_irq+0x84/0xc4
  gic_handle_irq+0xd0/0x178
  el1_irq+0xbc/0x180
  save_return_addr+0x18/0x28
  return_address+0x54/0x88
  preempt_count_sub+0x40/0x88
  _raw_spin_unlock_irqrestore+0x4c/0x6c
  ___ratelimit+0xd0/0x128
  rpmh_rsc_send_data+0x24c/0x378
  __rpmh_write+0x1b0/0x208
  rpmh_write_async+0x90/0xbc
  rpmhpd_send_corner+0x60/0x8c
  rpmhpd_aggregate_corner+0x8c/0x124
  rpmhpd_set_performance_state+0x8c/0xbc
  _genpd_set_performance_state+0xdc/0x1b8
  dev_pm_genpd_set_performance_state+0xb8/0xf8
  q6v5_pds_disable+0x34/0x60 [qcom_q6v5_mss]
  qcom_msa_handover+0x38/0x44 [qcom_q6v5_mss]
  q6v5_handover_interrupt+0x24/0x3c [qcom_q6v5]
  handle_nested_irq+0xd0/0x138
  qcom_smp2p_intr+0x188/0x200
  irq_thread_fn+0x2c/0x70
  irq_thread+0xfc/0x14c
  kthread+0x11c/0x12c
  ret_from_fork+0x10/0x18

This busy loop naturally lends itself to using a wait queue so that each
thread that tries to send a message will sleep waiting on the waitqueue
and only be woken up when a free slot is available. This should make
things more predictable too because the scheduler will be able to sleep
tasks that are waiting on a free tcs instead of the busy loop we
currently have today.

Reviewed-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Maulik Shah <mkshah@codeaurora.org>
Cc: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200724211711.810009-1-sboyd@kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-10 16:56:12 +00:00
Douglas Anderson
cb8aed7b92 soc: qcom: socinfo: add SC7180 entry to soc_id array
Add an entry for SC7180 SoC.

Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200813080345.1.I85bb28f9ea3fa3bf797ecaf0a5218ced4cfaa6e2@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-10 16:53:48 +00:00
Kathiravan T
7303fbd2f0 soc: qcom: socinfo: add soc id for IPQ6018
Add the SoC ID for IPQ6018 variant.

Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1597645830-30409-1-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-10 16:52:45 +00:00
Yoshihiro Shimoda
8e9529f5cd soc: renesas: rcar-rst: Add support for R-Car V3U
Add support for R-Car V3U (R8A779A0) to the R-Car RST driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599470390-29719-12-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Yoshihiro Shimoda
090e87e7fb soc: renesas: Identify R-Car V3U
Add support for identifying the R-Car V3U (R8A779A0) SoC.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599470390-29719-10-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Kuninori Morimoto
6d5aded8d5 soc: renesas: Sort driver description title
This patch sorts each driver by description title in alphabetical order.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6y2v54o.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Kuninori Morimoto
8fae675850 soc: renesas: Use ARM32/ARM64 for menu description
For easy understanding of architecture and alphabetical merging, this
patch uses ARM32/ARM64 for description.
This prepares for sorting the menu.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87bliiv54u.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 17:01:38 +02:00
Florian Fainelli
10e7dd54cd soc: bcm: brcmstb: biuctrl: Change RAC data line prefetching after 4 consecutive lines
Change the RACPREFDATA(x) setting to prefetch the next 256-byte line
after 4 consecutive lines have been used, instead of after 2 consecutive
lines. This does improve the synthetic memcpy benchmark by an additional
+0.5% on top of the previous change for Cortex-A72 CPUs.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-06 12:43:02 -07:00
Florian Fainelli
091353c88b soc: bcm: brcmstb: biuctrl: Change RAC prefetch distance from +/-1 to +/- 2
Change the RAC prefetch distance from +/- 1 to +/- 2 for Cortex-A72 CPUs
since this provides an average of a 3.8% performance increase for
synthetic memcpy benchmarks.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-04 13:48:49 -07:00
Florian Fainelli
4029f3b419 soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72165
72165 uses a Brahma-B53 CPU and its Bus Interface Unit, tune it
according to the existing values we have.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-04 13:48:42 -07:00
Florian Fainelli
5dfd145aad soc: bcm: brcmstb: biuctrl: Tune MCP settings for 72164
72164 uses a Brahma-B53 CPU and its Bus Interface Unit, tune it
according to the existing values we have.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-09-04 13:44:32 -07:00
Tony Lindgren
0d7ce5c5c4 Merge branch 'omap-for-v5.10/prm-genpd' into omap-for-v5.10/ti-sysc-drop-pdata 2020-09-03 12:06:18 +03:00
Kuninori Morimoto
464d9b349b soc: renesas: Align driver description titles
Now, Renesas SoC drivers are under menu, but current descriptions are
not aligned.
This patch aligns them.

    - Emma Mobile EV2
    - RZ/A1H (R7S72100)
      ...
    - R-Car H2 (R8A77900)
      ...
    - Renesas R-Car H3 ES1.x SoC Platform
      ...
    - R-Car H2 System Controller support
    - R-Car M2-W/N System Controller support
    - R-Car V2H System Controller support
    - R-Car E2 System Controller support
    - R-Car H3 System Controller support
    - R-Car M3-W System Controller support
    - R-Car M3-W+ System Controller support
    - R-Car M3-N System Controller support

    + SoC Platform support for Emma Mobile EV2
    + SoC Platform support for RZ/A1H+
      ...
    + SoC Platform support for R-Car H2
      ...
    + SoC Platform support for R-Car H3 ES1.x
      ...
    + System Controller support for R-Car H2
    + System Controller support for R-Car M2-W/N
    + System Controller support for R-Car V2H
    + System Controller support for R-Car E2
    + System Controller support for R-Car H3
    + System Controller support for R-Car M3-W
    + System Controller support for R-Car M3-W+
    + System Controller support for R-Car M3-N

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zh6kyedc.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-01 10:22:16 +02:00
Kuninori Morimoto
928bfbc6c7 soc: renesas: Use menu for Renesas SoC
Renesas related SoC settings are located on TOP level menu,
thus it is very verbose.
This patch groups Renesas related settings into
"Renesas SoC driver support" menu.

And it aligns config menu names.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k0xxho7t.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-08-25 11:21:55 +02:00
Stephan Gerhold
dd461cd918 opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER
The OPP core manages various resources, e.g. clocks or interconnect paths.
These resources are looked up when the OPP table is allocated once
dev_pm_opp_get_opp_table() is called the first time (either directly
or indirectly through one of the many helper functions).

At this point, the resources may not be available yet, i.e. looking them
up will result in -EPROBE_DEFER. Unfortunately, dev_pm_opp_get_opp_table()
is currently unable to propagate this error code since it only returns
the allocated OPP table or NULL.

This means that all consumers of the OPP core are required to make sure
that all necessary resources are available. Usually this happens by
requesting them, checking the result and releasing them immediately after.

For example, we have added "dev_pm_opp_of_find_icc_paths(dev, NULL)" to
several drivers now just to make sure the interconnect providers are
ready before the OPP table is allocated. If this call is missing,
the OPP core will only warn about this and then attempt to continue
without interconnect. This will eventually fail horribly, e.g.:

    cpu cpu0: _allocate_opp_table: Error finding interconnect paths: -517
    ... later ...
    of: _read_bw: Mismatch between opp-peak-kBps and paths (1 0)
    cpu cpu0: _opp_add_static_v2: opp key field not found
    cpu cpu0: _of_add_opp_table_v2: Failed to add OPP, -22

This example happens when trying to use interconnects for a CPU OPP
table together with qcom-cpufreq-nvmem.c. qcom-cpufreq-nvmem calls
dev_pm_opp_set_supported_hw(), which ends up allocating the OPP table
early. To fix the problem with the current approach we would need to add
yet another call to dev_pm_opp_of_find_icc_paths(dev, NULL).
But actually qcom-cpufreq-nvmem.c has nothing to do with interconnects...

This commit attempts to make this more robust by allowing
dev_pm_opp_get_opp_table() to return an error pointer. Fixing all
the usages is trivial because the function is usually used indirectly
through another helper (e.g. dev_pm_opp_set_supported_hw() above).
These other helpers already return an error pointer.

The example above then works correctly because set_supported_hw() will
return -EPROBE_DEFER, and qcom-cpufreq-nvmem.c already propagates that
error. It should also be possible to remove the remaining usages of
"dev_pm_opp_of_find_icc_paths(dev, NULL)" from other drivers as well.

Note that this commit currently only handles -EPROBE_DEFER for the
clock/interconnects within _allocate_opp_table(). Other errors are just
ignored as before. Eventually those should be propagated as well.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
[ Viresh: skip checking return value of dev_pm_opp_get_opp_table() for
	  EPROBE_DEFER in domain.c, fix NULL return value and reorder
	  code a bit in core.c, and update exynos-asv.c ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-08-25 11:08:54 +05:30
Tony Lindgren
2152fbbd47 soc: ti: pm33xx: Simplify RTC usage to prepare to drop platform data
We must re-enable the RTC module clock enabled in RTC+DDR suspend, and
pm33xx has been using platform data callbacks for that. Looks like for
retention suspend the RTC module clock must not be re-enabled.

To remove the legacy platform data callbacks, and eventually be able to
drop the RTC legacy platform data, let's manage the RTC module clock
and register range directly in pm33xx.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-08-24 08:38:32 +03:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Anson Huang
b663b798d0 soc: imx: gpcv2: Use dev_err_probe() to simplify error handling
dev_err_probe() can reduce code size, uniform error handling and record the
defer probe reason etc., use it to simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-08-22 20:57:57 +08:00
YueHaibing
9f467393e2 soc: integrator: Drop pointless static qualifier in integrator_soc_init()
There is no need to have the 'struct regmap *syscon_regmap' variable
static since new value always be assigned before use it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200715024701.28356-1-yuehaibing@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-20 08:57:05 +02:00
Arnd Bergmann
17132da70e ARM: samsung: move pm check code to drivers/soc
This is the only part of plat-samsung that is really
shared between the s3c and s5p ports. Moving it to
drivers/soc/ lets us make them completely independent.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-16-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19 21:23:46 +02:00
Tony Lindgren
2bbcd6590a soc: ti: omap-prm: Configure omap4 and 5 l4_abe power domain
Let's add omap4 and 5 l4_abe interconnect instance for the power
domain.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-08-18 10:40:03 +03:00
Tony Lindgren
f8f91486e8 soc: ti: omap-prm: Configure sgx power domain for am3 and am4
Let's configure only sgx power domain for am3 and am4 to start with.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-08-18 10:40:03 +03:00
Tony Lindgren
58cbff023b soc: ti: omap-prm: Add basic power domain support
The PRM controller has currently only support for resets while the power
domains are still handled in the platform code.

Let's add basic power domain support to enable and disable a PRM
controlled power domain if configured in the devicetree. This can be
used for various hardware accelerators, and interconnect instances.

Further support can be added later on as needed for runtime configuration
based on domain-idle-states.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-08-18 10:40:02 +03:00
Álvaro Fernández Rojas
6c41106f17 soc: bcm: add BCM63xx power domain driver
BCM6318, BCM6328, BCM6362 and BCM63268 SoCs have a power domain controller
to enable/disable certain components in order to save power.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <F.fainelli@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-08-17 09:14:04 -07:00
Florian Fainelli
9eda7c1f6f soc: bcm: brcmstb: biuctrl: Enable Read-ahead cache
Brahma-B53 and Cortex-A72 CPUs integrated on Broadcom STB SoCs feature a
read-ahead cache that performs cache line size adaptation between the
bus interface unit and the memory controller.

On 32-bit ARM kernels we have to resort to a full featured read-ahead
cache driver under arch/arm/mm/cache-b15-rac.c (CONFIG_CACHE_B15_RAC)
because there are still cache maintenance operations by set/ways/index
that cannot be transparently handled by the ARM Coherency Extension that
the read-ahead cache interfaces to.

The 64-bit ARM kernel however has long deprecated all of those, so this
is simply a one time configuration.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2020-08-17 09:14:04 -07:00
Linus Torvalds
b79675e15a Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
 "No common topic whatsoever in those, sorry"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: define inode flags using bit numbers
  iov_iter: Move unnecessary inclusion of crypto/hash.h
  dlmfs: clean up dlmfs_file_{read,write}() a bit
2020-08-07 21:14:30 -07:00
Linus Torvalds
30185b69a2 It looks like a smaller batch of clk updates this time around. In the core
framework we just have some minor tweaks and a debugfs feature, so not much to
 see there. The driver updates are fairly well split between AT91 and Qualcomm
 clk support. Adding those two drivers together equals about 50% of the
 diffstat. Otherwise, the big amount of work this time was on supporting
 Broadcom's Raspberry Pi firmware clks. See below for some more highlights.
 
 Core:
  - Document clk_hw_round_rate() so it gets some more use
  - Remove unused __clk_get_flags()
  - Add a prepare/enable debugfs feature similar to rate setting
 
 New Drivers:
  - Add support for SAMA7G5 SoC clks
  - Enable CPU clks on Qualcomm IPQ6018 SoCs
  - Enable CPU clks on Qualcomm MSM8996 SoCs
  - GPU clk support for Qualcomm SM8150 and SM8250 SoCs
  - Audio clks on Qualcomm SC7180 SoCs
  - Microchip Sparx5 DPLL clk
  - Add support for the new Renesas RZ/G2H (R8A774E1) SoC
 
 Updates:
  - Make defines for bcm63xx-gate clks to use in DT
  - Support BCM2711 SoC firmware clks
  - Add HDMI clks for BCM2711 SoCs
  - Add RTC related clks on Ingenic SoCs
  - Support USB PHY clks on Ingenic SoCs
  - Support gate clks on BCM6318 SoCs
  - RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
  - Use poll_timeout functions in Rockchip clk driver
  - Support Rockchip rk3288w SoC variant
  - Mark mac_lbtest critical on Rockchip rk3188
  - Add CAAM clock support for i.MX vf610 driver
  - Add MU root clock support for i.MX imx8mp driver
  - Amlogic g12: add neural network accelerator clock sources
  - Amlogic meson8: remove critical flag for main PLL divider
  - Amlogic meson8: add video decoder clock gates
  - Convert one more Renesas DT binding to json-schema
  - Enhance critical clock handling on Renesas platforms to only consider
    clocks that were enabled at boot time
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl8tspERHHNib3lkQGtl
 cm5lbC5vcmcACgkQrQKIl8bklSX0og//TXp134IBXVZ2Z5Wca4J41itv7tPGJFsX
 EslQ/eMm6xhGEqqrA6BVsQ228JF9rUmg1fbvdl82UPK7Zyp9P2fo6CMC65ngDTky
 B1rLZOaKitER9JdL9DmmnIR772pI//rAMdIeVC/Jn5RR7OpP4lgY6+qvK0pJjVFl
 8aK3uHY+UWVFtqZxuJEAAyZBq1+bREqmVwNC1my6kmMIf0j0KwcGhrZgASWWtjQK
 4TRmroehLC4FBqnJ78Y3E6UAOBlz6C7XnP38qJge2672Ef7QhXZU7AGrGiTtxc4h
 5fB6MNMF+5QGel54qR1eH+JxaEoKsAjLaX1VBr7hAHrGIQ26dBFHFPsPvWDA+VVR
 4bwXJKz2objAWyqlMVM/cVV3q6uDixuScdrw2aAiojmV7ZvdZXflacdmZuS5v7e4
 sh86llN+lF0YrViYz33z+up0risCAi089xVo7Z99VgyLe2DR8TE+4/d6DQTFRNxl
 m66m6mlB9pPPgIV028SAf/zmzyoVWEarwdEAQPjJC6KVRbnR9mFlhSiTQMmCsSvU
 zHRxVcInc+8qIJY6VJ552UFu/JAan/AFl5knb+kW21a7hM8p81H9HuSnS4aHDDq4
 yETPU3XSMYz8ARHX4lKo1UIB6+k9iF2CWdCP+gXHNP+QYSAsRBIJsonjul9lLUCi
 8i6mUGkS0OU=
 =QLRg
 -----END PGP SIGNATURE-----

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "It looks like a smaller batch of clk updates this time around.

  In the core framework we just have some minor tweaks and a debugfs
  feature, so not much to see there. The driver updates are fairly well
  split between AT91 and Qualcomm clk support. Adding those two drivers
  together equals about 50% of the diffstat.

  Otherwise, the big amount of work this time was on supporting
  Broadcom's Raspberry Pi firmware clks.

  Highlights:

  Core:
   - Document clk_hw_round_rate() so it gets some more use
   - Remove unused __clk_get_flags()
   - Add a prepare/enable debugfs feature similar to rate setting

  New Drivers:
   - Add support for SAMA7G5 SoC clks
   - Enable CPU clks on Qualcomm IPQ6018 SoCs
   - Enable CPU clks on Qualcomm MSM8996 SoCs
   - GPU clk support for Qualcomm SM8150 and SM8250 SoCs
   - Audio clks on Qualcomm SC7180 SoCs
   - Microchip Sparx5 DPLL clk
   - Add support for the new Renesas RZ/G2H (R8A774E1) SoC

  Updates:
   - Make defines for bcm63xx-gate clks to use in DT
   - Support BCM2711 SoC firmware clks
   - Add HDMI clks for BCM2711 SoCs
   - Add RTC related clks on Ingenic SoCs
   - Support USB PHY clks on Ingenic SoCs
   - Support gate clks on BCM6318 SoCs
   - RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
   - Use poll_timeout functions in Rockchip clk driver
   - Support Rockchip rk3288w SoC variant
   - Mark mac_lbtest critical on Rockchip rk3188
   - Add CAAM clock support for i.MX vf610 driver
   - Add MU root clock support for i.MX imx8mp driver
   - Amlogic g12: add neural network accelerator clock sources
   - Amlogic meson8: remove critical flag for main PLL divider
   - Amlogic meson8: add video decoder clock gates
   - Convert one more Renesas DT binding to json-schema
   - Enhance critical clock handling on Renesas platforms to only
     consider clocks that were enabled at boot time"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (79 commits)
  clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845
  ipq806x: gcc: add support for child probe
  clk: qcom: msm8996: Make symbol 'cpu_msm8996_clks' static
  clk: qcom: ipq8074: Add correct index for PCIe clocks
  clk: <linux/clk-provider.h>: drop a duplicated word
  clk: renesas: cpg-mssr: Add r8a774e1 support
  dt-bindings: clock: renesas,cpg-mssr: Document r8a774e1
  clk: Drop duplicate selection in Kconfig
  clk: qcom: smd: Add support for MSM8992/4 rpm clocks
  clk: qcom: ipq8074: Add missing clocks for pcie
  dt-bindings: clock: qcom: ipq8074: Add missing bindings for PCIe
  Replace HTTP links with HTTPS ones: Common CLK framework
  clk: qcom: Add CPU clock driver for msm8996
  dt-bindings: clk: qcom: Add bindings for CPU clock for msm8996
  soc: qcom: Separate kryo l2 accessors from PMU driver
  clk: meson: meson8b: add the vclk2_en gate clock
  clk: meson: meson8b: add the vclk_en gate clock
  clk: qcom: Fix return value check in apss_ipq6018_probe()
  clk: bcm: dvp: Add missing module informations
  clk: meson: meson8b: Drop CLK_IS_CRITICAL from fclk_div2
  ...
2020-08-07 13:35:51 -07:00