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2018-08-27Merge branch 'stable/for-jens-4.19' of ↵Jens Axboe
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus Pull Xen block driver fixes from Konrad: "Fix for flushing out persistent pages at a deterministic rate" * 'stable/for-jens-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring xen/blkback: move persistent grants flags to bool xen/blkfront: reorder tests in xlblk_init() xen/blkfront: cleanup stale persistent grants xen/blkback: don't keep persistent grants too long
2018-08-27blk-wbt: improve waking of tasksJens Axboe
We have two potential issues: 1) After commit 2887e41b910b, we only wake one process at the time when we finish an IO. We really want to wake up as many tasks as can queue IO. Before this commit, we woke up everyone, which could cause a thundering herd issue. 2) A task can potentially consume two wakeups, causing us to (in practice) miss a wakeup. Fix both by providing our own wakeup function, which stops __wake_up_common() from waking up more tasks if we fail to get a queueing token. With the strict ordering we have on the wait list, this wakes the right tasks and the right amount of tasks. Based on a patch from Jianchao Wang <jianchao.w.wang@oracle.com>. Tested-by: Agarwal, Anchal <anchalag@amazon.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-27blk-wbt: abstract out end IO completion handlerJens Axboe
Prep patch for calling the handler from a different context, no functional changes in this patch. Tested-by: Agarwal, Anchal <anchalag@amazon.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-27xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ringJuergen Gross
pers_gnts_lock isn't being used anywhere. Remove it. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2018-08-27xen/blkback: move persistent grants flags to boolJuergen Gross
The struct persistent_gnt flags member is meant to be a bitfield of different flags. There is only PERSISTENT_GNT_ACTIVE flag left, so convert it to a bool named "active". Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2018-08-27xen/blkfront: reorder tests in xlblk_init()Juergen Gross
In case we don't want pv block devices we should not test parameters for sanity and eventually print out error messages. So test precluding conditions before checking parameters. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2018-08-27xen/blkfront: cleanup stale persistent grantsJuergen Gross
Add a periodic cleanup function to remove old persistent grants which are no longer in use on the backend side. This avoids starvation in case there are lots of persistent grants for a device which no longer is involved in I/O business. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2018-08-27xen/blkback: don't keep persistent grants too longJuergen Gross
Persistent grants are allocated until a threshold per ring is being reached. Those grants won't be freed until the ring is being destroyed meaning there will be resources kept busy which might no longer be used. Instead of freeing only persistent grants until the threshold is reached add a timestamp and remove all persistent grants not having been in use for a minute. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2018-08-27Fix up libata MAINTAINERS entryJens Axboe
The email was botched in one entry, and I also forgot to update the location of the git tree. It'll be under the linux-block umbrella, just with different branches. Reported-by: Baruch Siach <baruch@tkos.co.il> Fixes: 7634ccd2da97 ("libata: maintainership update") Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-27x86/xen: don't write ptes directly in 32-bit PV guestsJuergen Gross
In some cases 32-bit PAE PV guests still write PTEs directly instead of using hypercalls. This is especially bad when clearing a PTE as this is done via 32-bit writes which will produce intermediate L1TF attackable PTEs. Change the code to use hypercalls instead. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-08-27arm64: dts: renesas: Convert to new LVDS DT bindingsLaurent Pinchart
The internal LVDS encoder now has DT bindings separate from the DU. Port the r8a7795 and r8a7796 device trees over to the new model. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27arm64: dts: renesas: r8a77995: Attach the SYS-DMAC to the IPMMUMagnus Damm
Hook up SYS-DMAC0, SYS-DMAC1 and SYS-DMAC2 to IPMMU-DS0 and IPMMU-DS1 following the R-Car Gen3 Rev.1.00 (April 2018) datasheet. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27arm64: dts: renesas: Include R-Car product name in DTSI filesMagnus Damm
Browsing the DTS for all the R-Car SoCs with similar part numbers makes my head hurt, so to improve the user friendliness of the DTS code base include R-Car product name in each DTSI file. Product names are derived from Documentation/devicetree/bindings/arm/shmobile.txt Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27arm64: dts: renesas: r8a77980: add RWDT supportSergei Shtylyov
Describe RWDT in the R8A77980 SoC device tree. Enable RWDT on the Condor and V3H Starter Kit boards. 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>
2018-08-27ARM: dts: Include R-Car Gen1 product name in DTSI filesMagnus Damm
Browsing the DTS for all the R-Car SoCs with similar part numbers still makes my head hurt, so to improve the user friendliness of the 32-bit ARM DTS code base include R-Car Gen1 product names for each DTSI file. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27ARM: dts: stout: Add DA9063 OnKey nodeMarek Vasut
Add DA9063 OnKey subnode to DA9063 PMIC node on Stout. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27ARM: dts: silk: Add DA9063 RTC and OnKey nodeMarek Vasut
Add DA9063 RTC and OnKey subnode to DA9063 PMIC node on Silk. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27ARM: dts: iwg23s-sbc: specify EtherAVB PHY IRQBiju Das
Specify EtherAVB PHY IRQ in the board specific device tree, now that we have GPIO support. 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>
2018-08-27ARM: dts: r8a77470: Add GPIO supportBiju Das
Describe GPIO blocks in the R8A77470 device tree. 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>
2018-08-27ARM: dts: silk: Add DA9063 PMIC nodeMarek Vasut
Add DA9063 PMIC node to the I2C bus. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27ARM: dts: gose: Add DA9210 node for CPU DVFSMarek Vasut
Add DA9210 DVFS node to the I2C bus and link it to CPU0 for DVFS. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27ARM: dts: rcar-gen2: Convert to new DU DT bindingsLaurent Pinchart
The DU DT bindings have been updated to drop the reg-names property. Update the r8a7792 and r8a7794 device trees accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27ARM: dts: iwg23s-sbc: Add pinctl support for scif1Biju Das
Adding pinctrl support for scif1 interface. 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>
2018-08-27ARM: dts: r8a77470: Add PFC supportBiju Das
Define the generic R8A77470 part of the PFC device node. 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>
2018-08-27ARM: dts: r8a77470: Use r8a77470-sysc binding definitionsBiju Das
Replace the hardcoded power domain indices by R8A77470_PD_* symbols. 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>
2018-08-27ARM: dts: rcar: Correct SATA device sizes to 2 MiBGeert Uytterhoeven
Update the SATA device nodes on R-Car H1, H2, and M2-W to use a 2 MiB I/O space, as specified in Rev.1.0 of the R-Car H1 and R-Car Gen2 hardware user manuals. See also commit e9f0089b2d8a3d45 ("arm64: dts: r8a7795: Correct SATA device size to 2MiB"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-08-27x86/Kconfig: Fix trivial typoNikolas Nyby
Fix a typo in the Kconfig help text: adverticed -> advertised. Signed-off-by: Nikolas Nyby <nikolas@gnu.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: trivial@kernel.org Cc: tglx@linutronix.de Cc: x86@kernel.org Link: https://lkml.kernel.org/r/20180825231054.23813-1-nikolas@gnu.org
2018-08-27x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+Andi Kleen
On Nehalem and newer core CPUs the CPU cache internally uses 44 bits physical address space. The L1TF workaround is limited by this internal cache address width, and needs to have one bit free there for the mitigation to work. Older client systems report only 36bit physical address space so the range check decides that L1TF is not mitigated for a 36bit phys/32GB system with some memory holes. But since these actually have the larger internal cache width this warning is bogus because it would only really be needed if the system had more than 43bits of memory. Add a new internal x86_cache_bits field. Normally it is the same as the physical bits field reported by CPUID, but for Nehalem and newerforce it to be at least 44bits. Change the L1TF memory size warning to use the new cache_bits field to avoid bogus warnings and remove the bogus comment about memory size. Fixes: 17dbca119312 ("x86/speculation/l1tf: Add sysfs reporting for l1tf") Reported-by: George Anchev <studio@anchev.net> Reported-by: Christopher Snowhill <kode54@gmail.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: Michael Hocko <mhocko@suse.com> Cc: vbabka@suse.cz Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180824170351.34874-1-andi@firstfloor.org
2018-08-27x86/spectre: Add missing family 6 check to microcode checkAndi Kleen
The check for Spectre microcodes does not check for family 6, only the model numbers. Add a family 6 check to avoid ambiguity with other families. Fixes: a5b296636453 ("x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes") Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180824170351.34874-2-andi@firstfloor.org
2018-08-27mtd: rawnand: docg4: Remove wrong __init annotationsGeert Uytterhoeven
If gcc (e.g. 4.1.2) decides not to inline init_mtd_structs() and read_id_reg(), this will cause section mismatches, and crashes: WARNING: drivers/mtd/nand/raw/docg4.o(.text+0xc10): Section mismatch in reference from the function docg4_attach_chip() to the function .init.text:init_mtd_structs() The function docg4_attach_chip() references the function __init init_mtd_structs(). This is often because docg4_attach_chip lacks a __init annotation or the annotation of init_mtd_structs is wrong. WARNING: drivers/mtd/nand/raw/docg4.o(.text+0xc3e): Section mismatch in reference from the function docg4_attach_chip() to the function .init.text:read_id_reg() The function docg4_attach_chip() references the function __init read_id_reg(). This is often because docg4_attach_chip lacks a __init annotation or the annotation of read_id_reg is wrong. Fix this by dropping the now incorrect __init annotations from init_mtd_structs() and read_id_reg(). Fixes: 66a38478dcc5b5a3 ("mtd: rawnand: docg4: convert driver to nand_scan()") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-08-27ARM: imx_v6_v7_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1GFabio Estevam
imx6sl-evk, imx6sll-evk and imx6sx-sdb boards use a Seiko 43WVF1G panel. Now that the DRM mxsfb driver is the one selected by default, let's also select CONFIG_DRM_PANEL_SEIKO_43WVF1G so that these boards continue to have a working display by default. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27ARM: mxs_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1GFabio Estevam
imx23-evk and imx28-evk boards use a Seiko 43WVF1G panel. Now that the DRM mxsfb driver is the one selected by default, let's also select CONFIG_DRM_PANEL_SEIKO_43WVF1G so that these boards continue to have a working display by default. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27ARM: dts: imx23-evk: Convert to the new display bindingsFabio Estevam
imx23-evk board has a Seiko 43WVF1G parallel display. Instead of hardcoding the display timings in the device tree, use the "sii,43wvf1g" compatible instead. This aligns with the new mxsfb bindings scheme documented at: Documentation/devicetree/bindings/display/mxsfb.txt Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27ARM: dts: imx23-evk: Move regulators outside simple-busFabio Estevam
It is recommended to place regulators outside simple-bus, so move them accordingly. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27ARM: dts: imx28-evk: Convert to the new display bindingsFabio Estevam
imx28-evk board has a Seiko 43WVF1G parallel display. Instead of hardcoding the display timings in the device tree, use the "sii,43wvf1g" compatible instead. This aligns with the new mxsfb bindings scheme documented at: Documentation/devicetree/bindings/display/mxsfb.txt Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27ARM: dts: imx28-evk: Move regulators outside simple-busFabio Estevam
It is recommended to place regulators outside simple-bus, so move them accordingly. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping"Leonard Crestez
This reverts commit 1c86c9dd82f859b474474a7fee0d5195da2c9c1d. That commit followed the reference manual but unfortunately the imx7d manual is incorrect. Tested with ath9k pcie card and confirmed internally. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Acked-by: Lucas Stach <l.stach@pengutronix.de> Fixes: 1c86c9dd82f8 ("ARM: dts: imx7d: Invert legacy PCI irq mapping") Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-08-27arm64: dts: rockchip: add sdmmc UHS support for roc-rk3328-ccLevin Du
In roc-rk3328-cc board, the signal voltage of sdmmc is supplied by the vcc_sdio regulator, which is a mux between 1.8V and 3.3V, controlled by a special output only gpio pin labeled "gpiomut_pmuio_iout", corresponding bit 1 of the syscon GRF_SOC_CON10. This special pin can now be reference as <&grf_gpio 0>, thanks to the gpio-syscon driver, which makes writing regulator-gpio possible. If the signal voltage changes, the io domain needs to change correspondingly. To use this feature, the following options are required in kernel config: - CONFIG_GPIO_SYSCON=y - CONFIG_POWER_AVS=y - CONFIG_ROCKCHIP_IODOMAIN=y Signed-off-by: Levin Du <djw@t-chip.com.cn> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27arm64: dts: rockchip: add GRF GPIO controller to rk3328Levin Du
Adding a GRF GPIO controller labled "grf_gpio" to rk3328, currently providing access to the GPIO_MUTE pin, which is manupulated by the GRF_SOC_CON10 register. The GPIO_MUTE pin is referred to as <&grf_gpio 0>. Signed-off-by: Levin Du <djw@t-chip.com.cn> [dropped default-status disabled] Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27arm64: dts: rockchip: add io-domain to roc-rk3328-ccLevin Du
It is necessary for the io domain setting of the SoC to match the voltage supplied by the regulators. Signed-off-by: Levin Du <djw@t-chip.com.cn> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27arm64: dts: rockchip: add PX30 evaluation board devicetreeLiang Chen
This patch add px30-evb.dts for PX30 evaluation board. Tested on PX30 evb. Signed-off-by: Liang Chen <cl@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27arm64: dts: rockchip: add core dtsi file for PX30 SoCsLiang Chen
This patch adds core dtsi file for Rockchip PX30 SoCs. Signed-off-by: Liang Chen <cl@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27dt-bindings: rockchip: grf: add grf and pmugrf description for px30Liang Chen
This patch adds the compatible of GRF and PMUGRF for PX30 SoCs. Signed-off-by: Liang Chen <cl@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27arm64: dts: rockchip: add support for ROC-RK3399-PC boardLevin Du
ROC-RK3399-PC is a power efficient 4GB LPDDR4 single board computer with USB 3.0 and Gigabit Ethernet in a form factor compatible with the Raspberry Pi. It is based on the Rockchip RK3399 SoC, powered by the Type-C port. The devicetree currently supports peripherals of: - Ethernet - HDMI - SD Card - UART2 debug - Type-C - eMMC USB3 in Type-C port currently only works with normal orientation, not flip one. Signed-off-by: Levin Du <djw@t-chip.com.cn> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-27drm/mediatek: fix connection from RDMA2 to DSI1Stu Hsieh
This patch fix connection from RDMA2 to DSI1 Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2018-08-27drm/mediatek: update some variable name from ovl to compStu Hsieh
This patch update some variable name from ovl to comp Because RDMA would be first HW in ddp, the naming ovl should be change to comp. Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2018-08-27drm/mediatek: use layer_nr function to get layer number to init planeStu Hsieh
This patch use layer_nr function to get layer number to init plane When plane init in crtc create, it use the number of OVL layer to init plane. That's OVL can read 4 memory address. For mt2712 third ddp, it use RDMA to read memory. RDMA can read 1 memory address, so it just init one plane. For compatibility, this patch use mtk_ddp_comp_layer_nr function to get layer number from their HW component in ddp for plane init. Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2018-08-27drm/mediatek: add function to return RDMA layer numberStu Hsieh
This patch add function to return RDMA layer number RDMA always has one layer. Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2018-08-27drm/mediatek: add function to return OVL layer numberStu Hsieh
This patch add function to return OVL layer number For now, MT8173, MT2712, MT2701 OVL all has 4 layer. Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2018-08-27drm/mediatek: add function to get layer number for componentStu Hsieh
This patch add function to get layer number for component Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>