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path: root/drivers/soc/renesas/rcar-sysc.c (follow)
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* soc: renesas: Move away from using OF_POPULATED for fw_devlinkSaravana Kannan2023-02-081-1/+1
| | | | | | | | | | | | | | | | | | | | The OF_POPULATED flag was set to let fw_devlink know that the device tree node will not have a struct device created for it. This information is used by fw_devlink to avoid deferring the probe of consumers of this device tree node. Let's use fwnode_dev_initialized() instead because it achieves the same effect without using OF specific flags. This allows more generic code to be written in driver core. Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Douglas Anderson <dianders@chromium.org> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Luca Weiss <luca.weiss@fairphone.com> # qcom/sm7225-fairphone-fp4 Link: https://lore.kernel.org/r/20230207014207.1678715-4-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* soc: renesas: Prefer memcpy() over strcpy()Len Baker2021-08-121-2/+4
| | | | | | | | | | | | | strcpy() performs no bounds checking on the destination buffer. This could result in linear overflows beyond the end of the buffer, leading to all kinds of misbehaviors. So, use memcpy() as a safe replacement. This is a previous step in the path to remove the strcpy() function entirely from the kernel. Signed-off-by: Len Baker <len.baker@gmx.com> Link: https://lore.kernel.org/r/20210808125012.4715-3-len.baker@gmx.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* soc: renesas: rcar-sysc: Mark device node OF_POPULATED after initGeert Uytterhoeven2021-01-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | The R-Car System Controller (SYSC) driver registers PM domains from an early_initcall(). It does not use a platform driver, as secondary CPU startup on R-Car H1 needs to control the CPU power domains, before initialization of the driver framework. As fw_devlink only considers devices, it does not know that the System Controller is ready. Hence probing of on-chip devices that are part of the SYSC PM domain fails if fw_devlink is enabled: probe deferral - supplier e6180000.system-controller not ready Fix this by setting the OF_POPULATED flag for the SYSC device node after successful initialization. This will make of_link_to_phandle() ignore the SYSC device node as a dependency, and consumer devices will be probed again. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20210128082847.2205950-1-geert+renesas@glider.be
* soc: renesas: rcar-sysc: Use readl_poll_timeout_atomic()Geert Uytterhoeven2021-01-261-20/+15
| | | | | | | | | Replace the open-coded polling loops by calls to the readl_poll_timeout_atomic() helper macro. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/20210125142606.1050130-1-geert+renesas@glider.be
* soc: renesas: rcar-sysc: Add r8a774e1 supportMarian-Cristian Rotariu2020-07-131-0/+3
| | | | | | | | | | Add support for RZ/G2H (R8A774E1) SoC power areas to the R-Car SYSC driver. Signed-off-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/1594138692-16816-6-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* soc: renesas: rcar-sysc: Add R8A7742 supportLad Prabhakar2020-04-301-0/+3
| | | | | | | | | Add support for RZ/G1H (R8A7742) SoC power areas to the R-Car SYSC driver. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com> Link: https://lore.kernel.org/r/1587678050-23468-4-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* soc: renesas: rcar-sysc: Add R8A77961 supportGeert Uytterhoeven2019-11-011-0/+3
| | | | | | | | | | | | | | | | | | | | | | Add support for the power areas in the Renesas R-Car M3-W+ (R8A77961) SoC to the R-Car System Controller driver. R-Car M3-W+ (aka R-Car M3-W ES3.0) is very similar to R-Car M3-W (R8A77960), which allows for both SoCs to share a driver: - R-Car M3-W+ lacks the A2VC power area, so its area must be nullified, - The existing support for the SYSCEXTMASK register added in commit 9bd645af9d2a49ac ("soc: renesas: r8a7796-sysc: Fix power request conflicts") applies to ES3.0 and later only. As R-Car M3-W+ uses a different compatible value, differentiate based on that, instead of on the ES version. Based on a patch in the BSP by Dien Pham <dien.pham.ry@renesas.com>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-7-geert+renesas@glider.be
* soc: renesas: Rename SYSC_R8A7796 to SYSC_R8A77960Geert Uytterhoeven2019-11-011-2/+2
| | | | | | | | | | | | Rename CONFIG_SYSC_R8A7796 for R-Car M3-W (R8A77960) to CONFIG_SYSC_R8A77960, to avoid confusion with R-Car M3-W+ (R8A77961), which will use CONFIG_SYSC_R8A77961. Rename r8a7796_sysc_info and r8a7796_sysc_init for consistency. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20191023123342.13100-2-geert+renesas@glider.be
* soc: renesas: rcar-sysc: Add r8a774b1 supportBiju Das2019-10-011-0/+3
| | | | | | | | | Add support for RZ/G2N (R8A774B1) SoC power areas to the R-Car SYSC driver. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Link: https://lore.kernel.org/r/1569223780-54304-1-git-send-email-biju.das@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* soc: renesas: rcar-sysc: Prepare for fixing power request conflictsGeert Uytterhoeven2019-10-011-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | Recent R-Car Gen3 SoCs added an External Request Mask Register to the System Controller (SYSC). This register allows to mask external power requests for CPU or 3DG domains, to prevent conflicts between powering off CPU cores or the 3D Graphics Engine, and changing the state of another power domain through SYSC, which could lead to CPG state machine lock-ups. Add support for making use of this register. Take into account that the register is optional, and that its location and contents are SoC-specific. Note that the issue fixed by this cannot happen in the upstream kernel, as upstream has no support for graphics acceleration yet. SoCs lacking the External Request Mask Register may need a different mitigation in the future. Inspired by a patch in the BSP by Dien Pham <dien.pham.ry@renesas.com>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Link: https://lore.kernel.org/r/20190828113618.6672-2-geert+renesas@glider.be
* soc: renesas: rcar-sysc: Eliminate local variable govGeert Uytterhoeven2019-08-191-2/+1
| | | | | | | | | | As of commit 980532a5dda319ee ("soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON"), the local variable "gov" is assigned just once, so it can be eliminated. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
* soc: renesas: rcar-sysc: Add goto to of_node_put() before returnNishka Dasgupta2019-08-191-1/+1
| | | | | | | | | | | | | | | | | The local variable np in function rcar_sysc_pd_init takes the return value of of_find_matching_node_and_match(), which gets a node but does not put it. If np is not put before the function returns, it may cause a memory leak. Hence, remove the return statement that does not immediately follow a putting of np. Replace it with a goto pointing to a pre-existing label that first puts np and then returns the required value. Issue found with Coccinelle. Fixes: afa6f53df6052968 ("soc: renesas: rcar-sysc: Add support for fixing up power area tables") Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* soc: renesas: rcar-sysc: Use [] to denote a flexible array memberGeert Uytterhoeven2019-07-291-1/+1
| | | | | | | | Flexible array members should be denoted using [] instead of [0], else gcc will not warn when they are no longer at the end of the structure. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Fix power domain control after system resumeGeert Uytterhoeven2018-12-061-19/+9
| | | | | | | | | | | | | | | | | | | | | | | To control power to a power domain, the System Controller (SYSC) needs the corresponding interrupt source to be enabled, but masked, to prevent the CPU from receiving it. Currently this is handled in the driver's probe() routine, and set up for every domain present, even if it will not be controlled directly by SYSC (CPU domains are powered through the APMU on R-Car Gen2 and later). On R-Car Gen3, PSCI powers down the SoC during system suspend, thus losing any configured interrupt state. Hence after system resume, power domains not controlled through the APMU (e.g. A3IR, A3VC, A3VP) fail to power up. Fix this by replacing the global interrupt setup in the probe() routine by a domain-specific interrupt setup in rcar_sysc_power(), where the domain's power is actually controlled. This brings the code more in line with the flowchart in the Hardware User's Manual. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Merge PM Domain registration and linkingGeert Uytterhoeven2018-12-061-13/+5
| | | | | | | | | | | | | | | | Commit 977d5ba4507dfe5b ("soc: renesas: rcar-sysc: Make PM domain initialization more robust") split PM Domain registration and the linking of children to their parents, to accommodate PM Domain tables that list child domains before their parents. However, this failed to realize that parent power domains must be powered up before their children anyway, and that this thus must be reflected by the order in the PM Domain tables. Revert the split, as it did not help anyway. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Remove rcar_sysc_power_{down,up}() helpersGeert Uytterhoeven2018-12-061-15/+4
| | | | | | | | | | | | | | | | | Until commit 7e8a50df26f4e700 ("soc: renesas: rcar-sysc: Drop legacy handling"), the rcar_sysc_power_{down,up}() helpers were public, as they were called by the legacy (pre-DT) CPU power management code on R-Car H1 and R-Car Gen2 before. As they are just one-line wrappers around rcar_sysc_power(), it makes sense to just remove them. This also avoids a bool/helper/bool conversion in rcar_sysc_power_cpu(), where a bool is checked to call one of two helper functions, which just call rcar_sysc_power() with hardcoded boolean values again. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add r8a7744 supportBiju Das2018-09-171-0/+2
| | | | | | | | | Add support for RZ/G1N (R8A7744) SoC power areas to the R-Car SYSC driver. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add r8a774c0 supportFabrizio Castro2018-09-141-0/+3
| | | | | | | | | Add support for the RZ/G2E (R8A774C0) SoC power areas to the R-Car SYSC driver. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: convert to SPDX identifiersKuninori Morimoto2018-09-121-4/+1
| | | | | | | | | This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add r8a774a1 supportBiju Das2018-09-121-0/+3
| | | | | | | | | | Add support for RZ/G2M (R8A774A1) SoC power areas to the R-Car SYSC driver. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Chris Paterson <chris.paterson2@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Merge tag 'renesas-arm-soc-for-v4.19' of ↵Olof Johansson2018-07-021-23/+41
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Renesas ARM Based SoC Arm SoC Updates for v4.19 * Convert to SPDX identifier * Remove legacy SMP fallback code for R-CAR H2 and M2-W - DT enablement has been in since 4.8, no longer needed * APMU cleanups after legacy SMP fallback removal * Drop legacy SYSC fallback code for R-Car H1, H2 and M2-W - DT enablement has been in since 4.7, no longer needed. * tag 'renesas-arm-soc-for-v4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: convert to SPDX identifier soc: renesas: rcar-sysc: Drop legacy handling ARM: shmobile: r8a7779: Remove explicit SYSC config and init ARM: shmobile: r8a7779: Use rcar_sysc_power_{down,up}_cpu() soc: renesas: rcar-sysc: Provide helpers to power up/down CPUs ARM: shmobile: r8a7779: Stop powering down secondary CPUs during early boot ARM: shmobile: rcar-gen2: Remove explicit SYSC config and init ARM: shmobile: apmu: Remove platsmp-apmu.h ARM: shmobile: apmu: Remove obsolete shmobile_smp_apmu_prepare_cpus() ARM: shmobile: apmu: Move cpu_leave_lowpower() to SUSPEND section ARM: shmobile: Remove unused shmobile_smp_init_fallback_ops() ARM: shmobile: r8a7791: Use common R-Car Gen2 machine definition ARM: shmobile: r8a7791: Remove legacy SMP fallback code ARM: shmobile: r8a7790: Use common R-Car Gen2 machine definition ARM: shmobile: r8a7790: Remove legacy SMP fallback code Signed-off-by: Olof Johansson <olof@lixom.net>
| * soc: renesas: rcar-sysc: Drop legacy handlingGeert Uytterhoeven2018-06-181-30/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now the R-Car platform code no longer supports DTBs lacking a SYSC device node in DT, all legacy handling can be dropped from the R-Car SYSC driver: - Make rcar_sysc_ch private to the driver, - Make rcar_sysc_power_{down,up}() static (they have been replaced by rcar_sysc_power_{down,up}_cpu()), - Remove the legacy wrapper rcar_sysc_init(), and the check for double initialization (only the early_initcall is left). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| * soc: renesas: rcar-sysc: Provide helpers to power up/down CPUsGeert Uytterhoeven2018-06-181-0/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | Provide helpers to control CPU power areas from platform code, taking just a CPU index. This will avoid having to pass full CPU power area parameter blocks, and thus duplicating information already provided by SoC-specific SYSC drivers. This will be used on R-Car H1 only. Later R-Car generations rely on APMU/RST for CPU power area control. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* | soc: renesas: rcar-sysc: Make PM domain initialization more robustGeert Uytterhoeven2018-06-081-6/+29
|/ | | | | | | | | | | | | | | | | | | | | | | The quirk for R-Car E3 ES1.0 added in commit 086b399965a7ee7e ("soc: renesas: r8a77990-sysc: Add workaround for 3DG-{A,B}") makes the 3DG-A PM domain a subdomain of the 3DG-B PM domain. However, registering 3DG-A with its parent fails silently, as the 3DG-B PM domain hasn't been registered yet, and such failures are never reported. Fix this by: 1. Splitting PM Domain initialization in two steps, so all PM domains are registered before any child-parent links are established, 2. Reporting any failures in establishing child-parent relations. Check for and report pm_genpd_init() failures, too, as that function gained a return value in commit 7eb231c337e00735 ("PM / Domains: Convert pm_genpd_init() to return an error code"). Fixes: 086b399965a7ee7e ("soc: renesas: r8a77990-sysc: Add workaround for 3DG-{A,B}") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add support for R-Car E3 power areasTakeshi Kihara2018-05-161-0/+3
| | | | | | | | | | | This patch adds Cortex-A53 CPU{0,1}, Cortex-A53 SCU, Cortex-R7, A3VC, A2VC1 and 3DG-{A,B} power domain areas for the R8A77990 SoC. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> [shimoda: fix 3DG-{A,B} and add SPDX-License-Identifier] Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add r8a77470 supportBiju Das2018-04-161-0/+3
| | | | | | | | | | Add support for RZ/G1C (R8A77470) SoC power areas to the R-Car SYSC driver. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add R-Car M3-N supportJacopo Mondi2018-02-211-0/+3
| | | | | | | | Add support for R-Car M3-N (R8A77965) power areas. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: add R8A77980 supportSergei Shtylyov2018-02-191-0/+3
| | | | | | | | | | | | Add support for R-Car V3H (R8A77980) SoC power areas to the R-Car SYSC driver. Based on the original (and large) patch by Vladimir Barinov. Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Mark rcar_sysc_matches[] __initconstGeert Uytterhoeven2018-02-121-1/+1
| | | | | | | | | | | rcar_sysc_matches[] is used only by rcar_sysc_pd_init(), which is __init. Hence mark rcar_sysc_matches[] __initconst. This frees another 1764 bytes (arm32/shmobile_defconfig) or 1000 bytes (arm64/renesas_defconfig) of memory after kernel init. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Keep wakeup sources active during system suspendGeert Uytterhoeven2017-12-201-1/+1
| | | | | | | | | | | | | | | | | | If an R-Car SYSC slave device is part of the CPG/MSTP or CPG/MSSR Clock Domain and to be used as a wakeup source, it must be kept active during system suspend. Currently this is handled in device-specific drivers by explicitly increasing the use count of the module clock when the device is configured as a wakeup source. However, the proper way to prevent the device from being stopped is to inform this requirement to the genpd core, by setting the GENPD_FLAG_ACTIVE_WAKEUP flag. Note that this will only affect devices configured as wakeup sources. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: add R8A77970 supportSergei Shtylyov2017-09-181-0/+3
| | | | | | | | | | | | | Add support for R-Car V3M (R8A77970) SoC power areas to the R-Car SYSC driver. Based on the original (and large) patch by Daisuke Matsushita <daisuke.matsushita.ns@hitachi.com>. Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Merge tag 'renesas-drivers-for-v4.14' of ↵Arnd Bergmann2017-08-161-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers Pull "Renesas ARM Based SoC Drivers Updates for v4.14" from Simon Horman: Add R-Car D3 (r8a77995) support to the Renesas-specific SoC drivers - SoC identification - System controller - Reset controller * tag 'renesas-drivers-for-v4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: soc: renesas: rcar-rst: Add support for R-Car D3 soc: renesas: rcar-sysc: Add support for R-Car D3 power areas soc: renesas: Add r8a77995 SYSC PM Domain Binding Definitions soc: renesas: Identify R-Car D3
| * soc: renesas: rcar-sysc: Add support for R-Car D3 power areasGeert Uytterhoeven2017-07-271-0/+3
| | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* | soc: Convert to using %pOF instead of full_nameRob Herring2017-08-161-3/+3
|/ | | | | | | | | | | | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Cc: Scott Wood <oss@buserror.net> Cc: Qiang Zhao <qiang.zhao@nxp.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Merge tag 'renesas-rcar-sysc-for-v4.13' of ↵Olof Johansson2017-06-191-24/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers Renesas ARM Based SoC R-Car SYSC Updates for v4.13 Use GENPD_FLAG_ALWAYS_ON in R-Car SYSC driver * tag 'renesas-rcar-sysc-for-v4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON Signed-off-by: Olof Johansson <olof@lixom.net>
| * soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ONGeert Uytterhoeven2017-06-151-24/+4
| | | | | | | | | | | | | | | | | | | | Improve handling of always-on PM domains by using the GENPD_FLAG_ALWAYS_ON flag introduced in commit ffaa42e8a40b7f10 ("PM / Domains: Enable users of genpd to specify always on PM domains"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* | Merge tag 'renesas-drivers-for-v4.13' of ↵Olof Johansson2017-06-191-13/+11
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers Renesas ARM Based SoC Drivers Updates for v4.13 * Rework Kconfig and Makefile logic * tag 'renesas-drivers-for-v4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: soc: renesas: Rework Kconfig and Makefile logic Signed-off-by: Olof Johansson <olof@lixom.net>
| * soc: renesas: Rework Kconfig and Makefile logicGeert Uytterhoeven2017-06-121-13/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The goals are to: - Allow precise control over and automatic selection of which (sub)drivers are used for which SoC, - Allow adding support for new SoCs easily, - Allow compile-testing of all (sub)drivers, - Keep driver selection logic in the subsystem-specific Kconfig, independent from the architecture-specific Kconfig (i.e. no "select" from arch/arm64/Kconfig.platforms), to avoid dependencies. This is implemented by: - Introducing Kconfig symbols for all drivers and sub-drivers, - Introducing the Kconfig symbol SOC_RENESAS, which is enabled automatically when building for a Renesas ARM platform, and which enables all required drivers without interaction of the user, based on SoC-specific ARCH_* symbols, - Allowing the user to enable any Kconfig symbol manually if COMPILE_TEST is enabled, - Using the new Kconfig symbols instead of the ARCH_* symbols to control compilation in the Makefile, - Always entering drivers/soc/renesas/ during the build. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* | soc: renesas: rcar-sysc: Add support for fixing up power area tablesGeert Uytterhoeven2017-04-071-1/+24
|/ | | | | | | | | | | | | | | | The same SoC may have different power areas, depending on SoC revision. One option is to use different sets of power area tables for each SoC revision. However, if the differences are small, it is much more space-efficient to have a single set of tables, and fix those up at runtime instead. Hence provide a helper to NULLify power areas that do not exist on some revisions (NULLified power areas are skipped during the registration phase), and support for an optional initialization callback to e.g. fix up power area tables. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* Merge tag 'renesas-r8a7745-sysc-for-v4.10' of ↵Arnd Bergmann2016-11-301-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers Pull "Renesas ARM Based SoC r8a7745 SYSC Driver Updates for v4.10" from Simon Horman: * Add support for the r8a7745 SoC to rcar-sysc * tag 'renesas-r8a7745-sysc-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: soc: renesas: rcar-sysc: add R8A7745 support ARM: shmobile: r8a7745: add power domain index macros Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * soc: renesas: rcar-sysc: add R8A7745 supportSergei Shtylyov2016-11-231-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | Add support for RZ/G1E (R8A7745) SoC power areas to the R-Car SYSC driver. Based on the original (and large) patch by Dmitry Shifrin <dmitry.shifrin@cogentembedded.com>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* | soc: renesas: rcar-sysc: add R8A7743 supportSergei Shtylyov2016-10-171-0/+3
|/ | | | | | | | | | | Add support for RZ/G1M (R8A7743) SoC power areas to the R-Car SYSC driver. Based on the original (and large) patch by Dmitry Shifrin <dmitry.shifrin@cogentembedded.com>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Improve SYSC interrupt config in legacy wrapperGeert Uytterhoeven2016-06-291-2/+15
| | | | | | | | | | | | Align SYSC interrupt configuration in the legacy wrapper with the DT version: - Mask SYSC interrupt sources before enabling them (doesn't matter much as they're disabled at the GIC level anyway), - Make sure not to clear reserved SYSCIMR bits that were set before. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Move SYSC interrupt config to rcar-sysc driverGeert Uytterhoeven2016-06-291-4/+8
| | | | | | | | | | | | | | | | | | | | On R-Car H1 and Gen2, the SYSC interrupt registers are always configured using hardcoded values in platform code. For R-Car Gen2, values are provided for H2 and M2-W only, other SoCs are not yet supported, and never will be. Move this configuration from SoC-specific platform code to the rcar_sysc_init() wrapper, so it can be skipped if the SYSC is configured from DT. This would be the case not only for H1, H2, and M2-W using a modern DTS, but also for other R-Car Gen2 SoCs not supported by the platform code, relying purely on DT. There is no longer a need to return the mapped register block, hence make the function return void. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Make rcar_sysc_init() init the PM domainsGeert Uytterhoeven2016-06-291-9/+11
| | | | | | | | | | Let rcar_sysc_init() trigger initialization of the SYSC PM domains from DT if called before the early_initcall. On failure, it falls back to mapping the passed register block, as before. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Fix uninitialized error code in rcar_sysc_pd_init()Geert Uytterhoeven2016-06-291-1/+1
| | | | | | | | | | | On success, rcar_sysc_pd_init() returns an uninitialized error code. Use the return value of of_genpd_add_provider_onecell() to fix this. This went unnoticed, as early_initcall() doesn't care about the return value. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: add R8A7792 supportSergei Shtylyov2016-06-161-0/+3
| | | | | | | | Add support for R-Car V2H (R8A7792) SoC power areas to the SYSC driver. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add support for R-Car M3-W power areasGeert Uytterhoeven2016-06-061-0/+3
| | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add support for R-Car H3 power areasGeert Uytterhoeven2016-04-261-0/+3
| | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
* soc: renesas: rcar-sysc: Add support for R-Car E2 power areasGeert Uytterhoeven2016-04-261-0/+3
| | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-31 05:10:50 +0100