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2017-12-21soc: mediatek: add MT2712 scpsys supportweiyi.lu@mediatek.com1-6/+100
add scpsys driver for MT2712 Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-21soc: mediatek: add dependent clock jpgdec/audio for scpsysweiyi.lu@mediatek.com1-1/+5
There are dependent clock jpgdec/audio in scpsys on MT2712, and will exist three dependent clocks on MT2712 VDEC. Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-21soc: mediatek: extend bus protection APIweiyi.lu@mediatek.com2-12/+42
MT2712 add "set/clear" bus control register to each control register set instead of providing only one "enable" control register, we could avoid the read-modify-write racing by declaring "bus_prot_reg_update" as "false" in scp_soc_data or declaring as "true" to use the legacy update method. By improving the mtk-infracfg bus protection implementation to support set/clear bus protection control method by IC configuration. Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-11-17Merge tag 'armsoc-drivers' of ↵Linus Torvalds2-83/+436
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "This branch contains platform-related driver updates for ARM and ARM64, these are the areas that bring the changes: New drivers: - driver support for Renesas R-Car V3M (R8A77970) - power management support for Amlogic GX - a new driver for the Tegra BPMP thermal sensor - a new bus driver for Technologic Systems NBUS Changes for subsystems that prefer to merge through arm-soc: - the usual updates for reset controller drivers from Philipp Zabel, with five added drivers for SoCs in the arc, meson, socfpa, uniphier and mediatek families - updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla, Heiner Kallweit and Lorenzo Pieralisi Changes specific to some ARM-based SoC - the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on ARM as well - several changes for power management on Broadcom SoCs - various improvements on Qualcomm, Broadcom, Amlogic, Atmel, Mediatek - minor Cleanups for Samsung, TI OMAP SoCs" [ NOTE! This doesn't work without the previous ARM SoC device-tree pull, because the R8A77970 driver is missing a header file that came from that pull. The fact that this got merged afterwards only fixes it at this point, and bisection of that driver will fail if/when you walk into the history of that driver. - Linus ] * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits) soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader bus: add driver for the Technologic Systems NBUS memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg() soc: qcom: remove unused label soc: amlogic: gx pm domain: add PM and OF dependencies drivers/firmware: psci_checker: Add missing destroy_timer_on_stack() dt-bindings: power: add amlogic meson power domain bindings soc: amlogic: add Meson GX VPU Domains driver soc: qcom: Remote filesystem memory driver dt-binding: soc: qcom: Add binding for rmtfs memory of: reserved_mem: Accessor for acquiring reserved_mem of/platform: Generalize /reserved-memory handling soc: mediatek: pwrap: fix fatal compiler error soc: mediatek: pwrap: fix compiler errors arm64: mediatek: cleanup message for platform selection soc: Allow test-building of MediaTek drivers soc: mediatek: place Kconfig for all SoC drivers under menu soc: mediatek: pwrap: add support for MT7622 SoC soc: mediatek: pwrap: add common way for setup CS timing extenstion soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap ..
2017-11-08soc: mediatek: Use GENPD_FLAG_ACTIVE_WAKEUPGeert Uytterhoeven1-12/+2
Set the newly introduced GENPD_FLAG_ACTIVE_WAKEUP, which allows to remove the driver's own flag-based callback. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-10-21soc: mediatek: pwrap: fix fatal compiler errorMatthias Brugger1-0/+1
When adding the MT6380 compatible, the sentinel for of_device_id was deleted, which leades to the following compiler error: FATAL: drivers/soc/mediatek/mtk-pmic-wrap: struct of_device_id is not terminated with a NULL entry! Fix this by adding the sentinel again. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-21soc: mediatek: pwrap: fix compiler errorsMatthias Brugger1-1/+1
When compiling using sparse, we got the following error: drivers/soc/mediatek/mtk-pmic-wrap.c:686:25: error: dubious one-bit signed bitfield Changing the data type to unsigned fixes this. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: place Kconfig for all SoC drivers under menuSean Wang1-3/+5
Add cleanup for placing all Kconfig for all MediaTek SoC drivers under the independent menu as other SoCs vendor usually did. Since the menu would be shown depending on "ARCH_MEDIATEK || COMPILE_TEST" selected and MTK_PMIC_WRAP is still safe compiling with the case of "COMPILE_TEST" only, the superfluous dependency for those items under the menu also is also being removed for the sake of simplicity. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: pwrap: add support for MT7622 SoCChenglin Xu1-0/+170
Add the registers, callbacks and data structures required to make the PMIC wrapper work on MT7622. Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com> Signed-off-by: Chen Zhong <chen.zhong@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: pwrap: add common way for setup CS timing extenstionSean Wang1-22/+37
Multiple platforms would always use their own way handling CS timing extension on the bus which leads to a little bit code duplication. Therefore, the patch groups the similar logic to handle CS timing extension into the common function which allows the following SoCs have more reusability for configing CS timing. Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrapSean Wang1-3/+21
Add MediaTek MT6380 regulator becoming one of PMIC wrapper slave and also add extra new regmap_config of 32-bit mode for MT6380 since old regmap_config of 16-bit mode can't be fit into the need. Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com> Signed-off-by: Chen Zhong <chen.zhong@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: pwrap: refactor pwrap_init for the various PMIC typesSean Wang1-40/+90
pwrap initialization is highly associated with the base SoC and the target PMICs, so slight refactorization is made here for allowing pwrap_init to run on those PMICs with different capability from the previous MediaTek PMICs and the determination for the enablement of the pwrap capability depending on PMIC type. Apart from this, the patch makes the driver more extensible especially when more PMICs join into the pwrap driver. Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: pwrap: add pwrap_write32 for writing in 32-bit modeSean Wang1-16/+54
Some regulators such as MediaTek MT6380 also has to be written in 32-bit mode. So the patch adds pwrap_write32, rename old pwrap_write into pwrap_write16 and one additional function pointer is introduced for increasing flexibility allowing the determination which mode is used by the pwrap slave detection through device tree. Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com> Signed-off-by: Chen Zhong <chen.zhong@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-20soc: mediatek: pwrap: add pwrap_read32 for reading in 32-bit modeSean Wang1-1/+54
Some regulators such as MediaTek MT6380 has to be read in 32-bit mode. So the patch adds pwrap_read32, rename old pwrap_read into pwrap_read16 and one function pointer is introduced for increasing flexibility allowing the determination which mode is used by the pwrap slave detection through device tree. Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com> Signed-off-by: Chen Zhong <chen.zhong@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-10-10soc: mediatek: pwrap: fixup warnings from coding styleSean Wang1-7/+13
fixup those warnings such as lines over 80 words and parenthesis alignment which would be complained by checkpatch.pl. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-08-19Merge tag 'v4.13-next-soc' of https://github.com/mbgg/linux-mediatek into ↵Arnd Bergmann2-103/+150
next/drivers Pull "arm: mediatek: soc updates for v4.14" from Matthias Brugger: - add mt7623a smp support - scpsys: reduce code duplication - scpsys: add mt7622 support - pmic wrapper: make of_device_ids constant * tag 'v4.13-next-soc' of https://github.com/mbgg/linux-mediatek: soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC soc: mediatek: add header files required for MT7622 SCPSYS dt-binding soc: mediatek: reduce code duplication of scpsys_probe across all SoCs dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC soc: mtk-pmic-wrap: make of_device_ids const. ARM: mediatek: add MT7623a smp bringup code
2017-08-16soc: Convert to using %pOF instead of full_nameRob Herring1-2/+2
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>
2017-08-14soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoCSean Wang1-0/+71
Add SCPSYS power domain driver for MT7622 SoC having four power domains which are respectively ETHSYS for Ethernet including embedded switch, WBSYS for WIFI and Bluetooth, HIF0SYS for PCI-E and SATA, and HIF1SYS for USB. Those functions could be selectively powered gated when the corresponding function is no longer to use in order to reach more minimal power dissipation. Signed-off-by: Chen Zhong <chen.zhong@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-08-14soc: mediatek: reduce code duplication of scpsys_probe across all SoCsSean Wang1-103/+79
Reduce code duplication of scpsys_probe_mtXXXX across all SoCs using the more generic scpsys_probe all covering all cases to avoid starting to bloat the driver when more MediaTek SoCs supported are added. Suggested-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-08-02soc: mtk-pmic-wrap: make of_device_ids const.Arvind Yadav1-3/+3
of_device_ids are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by: Chen Zhong <chen.zhong@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-05-15soc: mediatek: PMIC wrap: Fix possible NULL derefrence.shailendra.v@samsung.com1-0/+5
of_match_device could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-05-15soc: mediatek: PMIC wrap: Fix error handlingChristophe Jaillet1-3/+6
According to error handling in this function, it is likely that going to 'err_out2' was expected here. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-05-15soc: mediatek: add MT6797 scpsys supportMars Cheng1-0/+114
This adds scpsys support for MT6797 Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-05-15soc: mediatek: add vdec item for scpsysMars Cheng1-0/+2
for some chips, there is vdec item in scpsys, this patch adds it. Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-05-15soc: mediatek: avoid using fixed spm power status definesMars Cheng1-6/+27
Use variables to replace fixed defines since the offset of the status of spm power might be different for some chips Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-10-31soc: mediatek: Add MT2701 scpsys driverShunli Wang2-2/+117
Add scpsys driver for MT2701. mtk-scpsys now supports MT8173 (arm64) and MT2701 (arm). So it should be enabled on both arm64 and arm platforms. Signed-off-by: Shunli Wang <shunli.wang@mediatek.com> Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-10-31soc: mediatek: Refine scpsys to support multiple platformJames Liao1-138/+210
Refine scpsys driver common code to support multiple SoC / platform. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-08-22soc: mediatek: PMIC wrap: Extend the waiting time to 10ms.Henry Chen1-1/+1
Read data fails sometimes because of a timeout that PMIC cannot transfer data to PMIC wrap on time, extend the waiting time to 10ms to reduce the failed rate. Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-05-19soc: mtk-pmic-wrap: avoid integer overflow warningArnd Bergmann1-3/+3
On ARM64, the mtk-pmic-wrap driver causes a harmless warning: mtk-pmic-wrap.c:1062:16: warning: large integer implicitly truncated to unsigned type [-Woverflow] mtk-pmic-wrap.c:1074:16: warning: large integer implicitly truncated to unsigned type [-Woverflow] mtk-pmic-wrap.c:1086:16: warning: large integer implicitly truncated to unsigned type [-Woverflow] .int_en_all = ~(BIT(31) | BIT(1)), The problem is that the result of the BIT() macro is an 'unsigned long', so taking the bitwise NOT operation of that results in an integer with the upper 32 bits all set and that cannot be assigned to a 'u32' variable without loss of information. This is harmless because we were never interested in the upper bits here anyway, so we can shut up the warning by adding a simple cast to 'u32'. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-05-18Merge tag 'armsoc-drivers' of ↵Linus Torvalds1-131/+413
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, these contain various things that touch the drivers/ directory but got merged through arm-soc for practical reasons. For the most part, this is now related to power management controllers, which have not yet been abstracted into a separate subsystem, and typically require some code in drivers/soc or arch/arm to control the power domains. Another large chunk here is a rework of the NVIDIA Tegra USB3.0 support, which was surprisingly tricky and took a long time to get done. Finally, reset controller handling as always gets merged through here as well" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits) arm-ccn: Enable building as module soc/tegra: pmc: Add generic PM domain support usb: xhci: tegra: Add Tegra210 support usb: xhci: Add NVIDIA Tegra XUSB controller driver dt-bindings: usb: xhci-tegra: Add Tegra210 XUSB controller support dt-bindings: usb: Add NVIDIA Tegra XUSB controller binding PCI: tegra: Support per-lane PHYs dt-bindings: pci: tegra: Update for per-lane PHYs phy: tegra: Add Tegra210 support phy: Add Tegra XUSB pad controller support dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding phy: core: Allow children node to be overridden clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs drivers: firmware: psci: make two helper functions inline soc: renesas: rcar-sysc: Add support for R-Car H3 power areas soc: renesas: rcar-sysc: Add support for R-Car E2 power areas soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas soc: renesas: rcar-sysc: Add support for R-Car H2 power areas ...
2016-04-20soc: mediatek: PMIC wrap: add MT2701/7623 supportJohn Crispin1-0/+154
Add the registers, callbacks and data structures required to make the wrapper work on MT2701 and MT7623. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: add mt6323 slave supportJohn Crispin1-0/+43
Add support for MT6323 slaves. This PMIC can be found on MT2701 and MT7623 EVB. The only function that we need to touch is pwrap_init_cipher(). Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: add a slave specific structJohn Crispin1-47/+112
This patch adds a new struct pwrap_slv_type that we use to store the slave specific data. The patch adds 2 new helper functions to access the dew registers. The slave type is looked up via the wrappers child node. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: remove pwrap_is_mt8135() and pwrap_is_mt8173()John Crispin1-16/+12
With more SoCs being added the list of helper functions like these would grow. To mitigate this problem we remove the existing helpers and change the code to test against the pmic type stored inside the pmic specific datastructure that our context structure points at. There is one usage of pwrap_is_mt8135() that is ambiguous as the test should not be dependent on mt8135, but rather on the existence of a bridge. Add a new element to pmic_wrapper_type to indicate if a bridge is present and use this where appropriate. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type structJohn Crispin1-4/+5
Different SoCs will use different bitmask for the wdt_src. This patch defines the bitmask in the pmic_wrapper_type struct. This allows us to support new SoCs with a different bitmask to the one currently used. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: SPI_WRITE needs a different bitmask for MT2701/7623John Crispin1-4/+7
Different SoCs will use different bitmask for the SPI_WRITE command. This patch defines the bitmask in the pmic_wrapper_type struct. This allows us to support new SoCs with a different bitmask to the one currently used. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for MT2701/7623John Crispin1-1/+4
MT2701 and MT7623 use a different bitmask for PWRAP_INT_EN. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: split SoC specific init into callbackJohn Crispin1-25/+42
This patch moves the SoC specific wrapper init code into separate callback to avoid pwrap_init() getting too large. This is done by adding a new element called init_special to pmic_wrapper_type. Each currently supported SoC gets its own version of the callback and we copy the code that was previously inside pwrap_init() to these new callbacks. Finally we point the 2 instances of pmic_wrapper_type at the 2 new functions. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clockJohn Crispin1-32/+38
Split init_reg_clock up into SoC specific callbacks. The patch also reorders the code to avoid the need for callback function prototypes. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-20soc: mediatek: PMIC wrap: don't duplicate the wrapper dataJohn Crispin1-14/+8
As we add support for more devices struct pmic_wrapper_type will grow and we do not really want to start duplicating all the elements in struct pmic_wrapper. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-13Revert "soc: mediatek: SCPSYS: Fix double enabling of regulators"James Liao1-5/+6
This reverts commit cc8ed76938b5cf6a54ab3d60edabaf808dc960d1 ("soc: mediatek: SCPSYS: Fix double enabling of regulators") [1]. This patch fixes mt8173-evb failing boot issue. With commit [1], genpd state will not sync to real power domain state. So some resources such as clocks and regulators may stay in a wrong state. There is no regulator double enabling issue on mainline kernel, so we can refert commit [1] safely. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-02-01soc: mediatek: SCPSYS: Fix double enabling of regulatorsSascha Hauer1-6/+5
With CONFIG_PM enabled do not call genpd->power_on manually as this will cause the regulators being turned on once in SCPSYS probe and then again when the genpd core turns on the domains. Instead, call genpd->power_on only with CONFIG_PM disabled and tell the genpd core that the domains are disabled when registered. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-01-25soc: mediatek: SCPSYS: use builtin_platform_driverMatthias Brugger1-28/+21
SCPSYS can't be built as module. Use builtin_platform_driver instead. For this probe must not be __init and the data accessed can't be __initconst. Remove this macros. To make the impact as small as possible, fold scp_domain_data into scp_domain via a pointer. Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Reported-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Tested-by: Daniel Kurtz <djkurtz@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
2016-01-25soc: mediatek: PMIC wrap: clear the STAUPD_TRIG bit of WDT_SRC_ENHenry Chen1-2/+17
Since STAUPD interrupts aren't handled on mt8173, disable watchdog timeout monitor of STAUPD to avoid WDT_INT triggered by STAUPD. Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-01-25soc: mediatek: PMIC wrap: Clear the vldclr if state machine stay on ↵Henry Chen1-2/+20
FSM_VLDCLR state. Sometimes PMIC is too busy to send data in time to cause pmic wrap timeout, because pmic wrap is waiting for FSM_VLDCLR after finishing WACS2_CMD. It just return error when issue happened, so the state machine will stay on FSM_VLDCLR state when data send back later by PMIC and timeout again in next time because pmic wrap waiting for FSM_IDLE state at the beginning of the read/write function. Clear the vldclr when timeout if state machine stay on FSM_VLDCLR. Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Tested-by: Ricky Liang <jcliang@chromium.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-12-23Merge tag 'v4.4-next-soc' of https://github.com/mbgg/linux-mediatek into ↵Olof Johansson1-3/+29
next/drivers Change the scpsys to builtin_platform_driver_probe. Add regulator support for scpsys driver. * tag 'v4.4-next-soc' of https://github.com/mbgg/linux-mediatek: drivers/soc: make mediatek/mtk-scpsys.c explicitly non-modular soc: mediatek: SCPSYS: Add regulator support Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-18drivers/soc: make mediatek/mtk-scpsys.c explicitly non-modularPaul Gortmaker1-3/+2
The Kconfig currently controlling compilation of this code is: drivers/soc/mediatek/Kconfig:config MTK_SCPSYS drivers/soc/mediatek/Kconfig: bool "MediaTek SCPSYS Support" ...meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modularity so that when reading the driver there is no doubt it is builtin-only. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Daniel Kurtz <djkurtz@chromium.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Olof Johansson <olof@lixom.net> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-12-18soc: mediatek: SCPSYS: Add regulator supportSascha Hauer1-0/+27
The power domains are supplied by regulators. Add support for them so that the regulators are properly turned on before a domain is powered up and turned off when a domain is powered down. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-11-24soc: Mediatek: Enable SCPSYS power domain driver by defaultEddie Huang1-0/+1
If enable Mediatek 8173 SoC, it should also enable power domain driver. Otherwise access clk subsystem register will fail. Signed-off-by: Eddie Huang <eddie.huang@mediatek.com> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-10-14soc: mediatek: Fix random hang up issue while kernel initJames Liao1-23/+44
In kernel late init, it turns off all unused clocks, which needs to access subsystem registers such as VENC and VENC_LT. Accessing MT8173 VENC registers needs two top clocks, mm_sel and venc_sel. Accessing VENC_LT registers needs mm_sel and venclt_sel. So we need to keep these clocks on before accessing their registers. This patch keeps venc_sel / venclt_sel clock on when VENC / VENC_LT's power is on, to prevent system hang up while accessing its registeres. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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