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2019-09-11mmc: sdhci: constify references of parameters to __sdhci_read_caps()Masahiro Yamada
__sdhci_read_caps() does not modify *ver, *caps, or *caps1. Probably, the caller of this function will want to constifythe parameters passed in. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: mediatek: enable SDIO IRQ low level trigger functionyong mao
SDIO IRQ is not defaultly triggered by low level, but by falling edge. It needs to set related register to enable SDIO IRQ low level trigger function. Otherwise the SDIO IRQ may be lost in some specail condition. Signed-off-by: Yong Mao <yong.mao@mediatek.com> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci: Export sdhci_abort_tuning function symbolBen Chuang
Export sdhci_abort_tuning() function symbols which are used by other SD Host controller driver modules. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Co-developed-by: Michael K Johnson <johnsonm@danlj.org> Signed-off-by: Michael K Johnson <johnsonm@danlj.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci: Add PLL Enable support to internal clock setupBen Chuang
The GL9750 and GL9755 chipsets, and possibly others, require PLL Enable setup as part of the internal clock setup as described in 3.2.1 Internal Clock Setup Sequence of SD Host Controller Simplified Specification Version 4.20. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Co-developed-by: Michael K Johnson <johnsonm@danlj.org> Signed-off-by: Michael K Johnson <johnsonm@danlj.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci: Change timeout of loop for checking internal clock stableBen Chuang
According to section 3.2.1 internal clock setup in SD Host Controller Simplified Specifications 4.20, the timeout of loop for checking internal clock stable is defined as 150ms. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Co-developed-by: Michael K Johnson <johnsonm@danlj.org> Signed-off-by: Michael K Johnson <johnsonm@danlj.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-of-arasan: Add Support for Intel LGM eMMCRamuthevar Vadivel Muruganx
The current arasan sdhci PHY configuration isn't compatible with the PHY on Intel's LGM(Lightning Mountain) SoC devices. Therefore, add a new compatible, to adapt the Intel's LGM eMMC PHY with arasan-sdhc controller to configure the PHY. Signed-off-by: Ramuthevar Vadivel Muruganx <vadivel.muruganx.ramuthevar@linux.intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-of-aspeed: Fix return value check in aspeed_sdc_probe()Wei Yongjun
In case of error, the function of_platform_device_create() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: bcm2835: Take SWIOTLB memory size limitation into accountStefan Wahren
Make sure the sdhost driver doesn't use requests bigger than SWIOTLB can handle. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-of-aspeed: Add support for the ASPEED SD controllerAndrew Jeffery
Add a minimal driver for ASPEED's SD controller, which exposes two SDHCIs. The ASPEED design implements a common register set for the SDHCIs, and moves some of the standard configuration elements out to this common area (e.g. 8-bit mode, and card detect configuration which is not currently supported). The SD controller has a dedicated hardware interrupt that is shared between the slots. The common register set exposes information on which slot triggered the interrupt; early revisions of the patch introduced an irqchip for the register, but reality is it doesn't behave as an irqchip, and the result fits awkwardly into the irqchip APIs. Instead I've taken the simple approach of using the IRQ as a shared IRQ with some minor performance impact for the second slot. Ryan was the original author of the patch - I've taken his work and massaged it to drop the irqchip support and rework the devicetree integration. The driver has been smoke tested under qemu against a minimal SD controller model and lightly tested on an ast2500-evb. Signed-off-by: Ryan Chen <ryanchen.aspeed@gmail.com> Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: mediatek: support 24bits segment sizeChaotian Jing
MSDC IP which support 64G DRAM will support 24bits BDMA buffer length, so add support it. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: mediatek: fix controller busy when plug out SDChaotian Jing
when plug out SD card, may get data CRC error, the MMC core will issue CMD13 to get card status, then CMD13 timeout(due to card plug out) will trigger CMD19 tuning, first CMD19 timeout has not call msdc_reset_hw() and cause the next CMD19 gets controller busy. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: renesas_sdhi_sys_dmac: Remove all R-Car Gen3 SoCsYoshihiro Shimoda
All R-Car Gen3 SoCs with any ES version cannot use this DMAC actually. So, this patch removes the compatibles of R-Car Gen3 SoCs from renesas_sdhi_sys_dmac_of_match. Since the previous code has an empty whitelist to prevent probing of R-Car Gen3 SoCs, no behavior changes. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: jz4740: Drop dependency on arch headerPaul Cercueil
We don't need to set the 'slave_id' anymore - that field is never read by the DMA driver. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: jz4740: Code cleanupPaul Cercueil
Fix wrong code indentation which made the code hard to read, and fix return with value in void function. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-cadence: use struct_size() helperGustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct sdhci_cdns_priv { ... struct sdhci_cdns_phy_param phy_params[0]; }; Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes. So, replace the following form: sizeof(*priv) + sizeof(priv->phy_params[0]) * nr_phy_params with: struct_size(priv, phy_params, nr_phy_params) Also, notice that, in this case, variable priv_size is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-of-esdhc: add erratum A011334 support in ls1028a 1.0 SoCYinbo Zhu
This patch is to add erratum A011334 support in ls1028a 1.0 SoC Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: Remove dev_err() usage after platform_get_irq()Stephen Boyd
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: linux-mmc@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-pci: Add another Id for Intel CMLAdrian Hunter
Add another PCI Id for Intel CML. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-s3c: Mark expected switch fall-throughGustavo A. R. Silva
Mark switch cases where we are expecting to fall through. This patch fixes the following warnings: drivers/mmc/host/sdhci-s3c.c: In function 'sdhci_s3c_probe': drivers/mmc/host/sdhci-s3c.c:613:19: warning: this statement may fall through [-Wimplicit-fallthrough=] host->mmc->caps |= MMC_CAP_8_BIT_DATA; drivers/mmc/host/sdhci-s3c.c:614:2: note: here case 4: ^~~~ Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: atmel-mci: Mark expected switch fall-throughsGustavo A. R. Silva
Mark switch cases where we are expecting to fall through. This patch fixes the following warnings: drivers/mmc/host/atmel-mci.c: In function 'atmci_get_cap': drivers/mmc/host/atmel-mci.c:2415:30: warning: this statement may fall through [-Wimplicit-fallthrough=] host->caps.has_odd_clk_div = 1; ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ drivers/mmc/host/atmel-mci.c:2416:2: note: here case 0x400: ^~~~ drivers/mmc/host/atmel-mci.c:2422:28: warning: this statement may fall through [-Wimplicit-fallthrough=] host->caps.has_highspeed = 1; ~~~~~~~~~~~~~~~~~~~~~~~~~^~~ drivers/mmc/host/atmel-mci.c:2423:2: note: here case 0x200: ^~~~ drivers/mmc/host/atmel-mci.c:2426:40: warning: this statement may fall through [-Wimplicit-fallthrough=] host->caps.need_notbusy_for_read_ops = 1; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ drivers/mmc/host/atmel-mci.c:2427:2: note: here case 0x100: ^~~~ Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-pltfm: Use devm_platform_ioremap_resource() to simplify codeJisheng Zhang
devm_platform_ioremap_resource() wraps platform_get_resource() and devm_ioremap_resource() in a single helper, let's use that helper to simplify the code. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: mmci: Clarify comments and some code for busy detectionUlf Hansson
The code dealing with busy detection is somewhat complicated. In a way to make it a bit clearer, let's try to clarify the comments in the code about it. Additionally, move the part for clearing the so called busy start IRQ, to the place where the IRQ is actually delivered. Ideally, this should make the code a bit more robust. Finally, to improve understanding of the code and the sequence of the busy detection, move the corresponding code around a bit in mmci_cmd_irq(). Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Jean Nicolas GRAUX <jean-nicolas.graux@st.com> Reviewed-by: Jean Nicolas GRAUX <jean-nicolas.graux@st.com>
2019-09-11memstick: r592: Use dev_get_drvdataChuhong Yuan
Instead of using to_pci_dev + pci_get_drvdata, use dev_get_drvdata to make code simpler. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-pci: Use dev_get_drvdataChuhong Yuan
Instead of using to_pci_dev + pci_get_drvdata, use dev_get_drvdata to make code simpler. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: sdhci-iproc: Add support for emmc2 of the BCM2711Stefan Wahren
The additional emmc2 interface of the BCM2711 is an improved version of the old emmc controller, which is able to provide DDR50 mode on the Raspberry Pi 4. Except 32 bit only register access no other quirks are known yet. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Matthias Brugger <mbrugger@suse.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: mxs: use devm_platform_ioremap_resource() to simplify codeAnson Huang
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11Revert "mmc: sdhci: Remove unneeded quirk2 flag of O2 SD host controller"Daniel Drake
This reverts commit 414126f9e5abf1973c661d24229543a9458fa8ce. This commit broke eMMC storage access on a new consumer MiniPC based on AMD SoC, which has eMMC connected to: 02:00.0 SD Host controller: O2 Micro, Inc. Device 8620 (rev 01) (prog-if 01) Subsystem: O2 Micro, Inc. Device 0002 During probe, several errors are seen including: mmc1: Got data interrupt 0x02000000 even though no data operation was in progress. mmc1: Timeout waiting for hardware interrupt. mmc1: error -110 whilst initialising MMC card Reverting this commit allows the eMMC storage to be detected & usable again. Signed-off-by: Daniel Drake <drake@endlessm.com> Fixes: 414126f9e5ab ("mmc: sdhci: Remove unneeded quirk2 flag of O2 SD host controller") Cc: stable@vger.kernel.org # v5.1+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11Revert "mmc: bcm2835: Terminate timeout work synchronously"Stefan Wahren
The commit 37fefadee8bb ("mmc: bcm2835: Terminate timeout work synchronously") causes lockups in case of hardware timeouts due the timeout work also calling cancel_delayed_work_sync() on its own. So revert it. Fixes: 37fefadee8bb ("mmc: bcm2835: Terminate timeout work synchronously") Cc: stable@vger.kernel.org Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11Merge tag 'mac80211-next-for-davem-2019-09-11' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== We have a number of changes, but things are settling down: * a fix in the new 6 GHz channel support * a fix for recent minstrel (rate control) updates for an infinite loop * handle interface type changes better wrt. management frame registrations (for management frames sent to userspace) * add in-BSS RX time to survey information * handle HW rfkill properly if !CONFIG_RFKILL * send deauth on IBSS station expiry, to avoid state mismatches * handle deferred crypto tailroom updates in mac80211 better when device restart happens * fix a spectre-v1 - really a continuation of a previous patch * advertise NL80211_CMD_UPDATE_FT_IES as supported if so * add some missing parsing in VHT extended NSS support * support HE in mac80211_hwsim * let mac80211 drivers determine the max MTU themselves along with the usual cleanups etc. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-11gpio: creg-snps: use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190906131032.22148-1-yuehaibing@huawei.com Acked-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11gpio: devres: Switch to EXPORT_SYMBOL_GPL()Geert Uytterhoeven
Change all exported symbols for managed GPIO functions from EXPORT_SYMBOL() to EXPORT_SYMBOL_GPL(), like is used for their non-managed counterparts. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20190906084539.21838-5-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11gpio: of: Switch to EXPORT_SYMBOL_GPL()Geert Uytterhoeven
All exported functions provide genuine Linux-specific functionality. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20190906084539.21838-4-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11gpio: of: Make of_gpio_simple_xlate() privateGeert Uytterhoeven
Since commit 9a95e8d25a140ba9 ("gpio: remove etraxfs driver"), there are no more users of of_gpio_simple_xlate() outside gpiolib-of.c. All GPIO drivers that need it now rely on of_gpiochip_add() setting it up as the default translate function. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20190906084539.21838-3-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11gpio: of: Make of_get_named_gpiod_flags() privateGeert Uytterhoeven
Since commit f626d6dfb7098525 ("gpio: of: Break out OF-only code"), there are no more users of of_get_named_gpiod_flags() outside gpiolib-of.c. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20190906084539.21838-2-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11swiotlb-xen: merge xen_unmap_single into xen_swiotlb_unmap_pageChristoph Hellwig
No need for a no-op wrapper. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2019-09-11swiotlb-xen: simplify cache maintainanceChristoph Hellwig
Now that we know we always have the dma-noncoherent.h helpers available if we are on an architecture with support for non-coherent devices, we can just call them directly, and remove the calls to the dma-direct routines, including the fact that we call the dma_direct_map_page routines but ignore the value returned from it. Instead we now have Xen wrappers for the arch_sync_dma_for_{device,cpu} helpers that call the special Xen versions of those routines for foreign pages. Note that the new helpers get the physical address passed in addition to the dma address to avoid another translation for the local cache maintainance. The pfn_valid checks remain on the dma address as in the old code, even if that looks a little funny. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2019-09-11swiotlb-xen: remove xen_swiotlb_dma_mmap and xen_swiotlb_dma_get_sgtableChristoph Hellwig
There is no need to wrap the common version, just wire them up directly. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2019-09-11xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainanceChristoph Hellwig
Copy the arm64 code that uses the dma-direct/swiotlb helpers for DMA on-coherent devices. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2019-09-11Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', ↵Joerg Roedel
'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next
2019-09-11iommu/vt-d: Declare Broadwell igfx dmar support snafuChris Wilson
Despite the widespread and complete failure of Broadwell integrated graphics when DMAR is enabled, known over the years, we have never been able to root cause the issue. Instead, we let the failure undermine our confidence in the iommu system itself when we should be pushing for it to be always enabled. Quirk away Broadwell and remove the rotten apple. References: https://bugs.freedesktop.org/show_bug.cgi?id=89360 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Martin Peres <martin.peres@linux.intel.com> Cc: Joerg Roedel <joro@8bytes.org> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11iommu/vt-d: Add Scalable Mode fault informationKyung Min Park
Intel VT-d specification revision 3 added support for Scalable Mode Translation for DMA remapping. Add the Scalable Mode fault reasons to show detailed fault reasons when the translation fault happens. Link: https://software.intel.com/sites/default/files/managed/c5/15/vt-directed-io-spec.pdf Reviewed-by: Sohil Mehta <sohil.mehta@intel.com> Signed-off-by: Kyung Min Park <kyung.min.park@intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11iommu/vt-d: Use bounce buffer for untrusted devicesLu Baolu
The Intel VT-d hardware uses paging for DMA remapping. The minimum mapped window is a page size. The device drivers may map buffers not filling the whole IOMMU window. This allows the device to access to possibly unrelated memory and a malicious device could exploit this to perform DMA attacks. To address this, the Intel IOMMU driver will use bounce pages for those buffers which don't fill whole IOMMU pages. Cc: Ashok Raj <ashok.raj@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Tested-by: Xu Pengfei <pengfei.xu@intel.com> Tested-by: Mika Westerberg <mika.westerberg@intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11iommu/vt-d: Add trace events for device dma map/unmapLu Baolu
This adds trace support for the Intel IOMMU driver. It also declares some events which could be used to trace the events when an IOVA is being mapped or unmapped in a domain. Cc: Ashok Raj <ashok.raj@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11iommu/vt-d: Don't switch off swiotlb if bounce page is usedLu Baolu
The bounce page implementation depends on swiotlb. Hence, don't switch off swiotlb if the system has untrusted devices or could potentially be hot-added with any untrusted devices. Cc: Ashok Raj <ashok.raj@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11iommu/vt-d: Check whether device requires bounce bufferLu Baolu
This adds a helper to check whether a device needs to use bounce buffer. It also provides a boot time option to disable the bounce buffer. Users can use this to prevent the iommu driver from using the bounce buffer for performance gain. Cc: Ashok Raj <ashok.raj@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Tested-by: Xu Pengfei <pengfei.xu@intel.com> Tested-by: Mika Westerberg <mika.westerberg@intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11swiotlb: Split size parameter to map/unmap APIsLu Baolu
This splits the size parameter to swiotlb_tbl_map_single() and swiotlb_tbl_unmap_single() into an alloc_size and a mapping_size parameter, where the latter one is rounded up to the iommu page size. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11regulator: core: Fix error return for /sys accessH. Nikolaus Schaller
regulator_uV_show() is missing error handling if regulator_get_voltage_rdev() returns negative values. Instead it prints the errno as a string, e.g. -EINVAL as "-22" which could be interpreted as -22 µV. We also do not need to hold the lock while converting the integer to a string. Reported-by: Adam Ford <aford173@gmail.com> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Tested-by: Adam Ford <aford173@gmail.com> Link: https://lore.kernel.org/r/f37f2a1276efcb34cf3b7f1a25481175be048806.1568143348.git.hns@goldelico.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-11regulator: da9211: fix obtaining "enable" GPIODmitry Torokhov
This fixes 11da04af0d3b, as devm_gpiod_get_from_of_node() does not do translation "con-id" -> "con-id-gpios" that our bindings expects, and therefore it was wrong to change connection ID to be simply "enable" when moving to using devm_gpiod_get_from_of_node(). Fixes: 11da04af0d3b ("regulator: da9211: Pass descriptors instead of GPIO numbers") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20190910170246.GA56792@dtor-ws Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-11regulator: max77686: fix obtaining "maxim,ena" GPIODmitry Torokhov
This fixes 96392c3d8ca4, as devm_gpiod_get_from_of_node() does not do translation "con-id" -> "con-id-gpios" that our bindings expects, and therefore it was wrong to change connection ID to be simply "maxim,ena" when moving to using devm_gpiod_get_from_of_node(). Fixes: 96392c3d8ca4 ("regulator: max77686: Pass descriptor instead of GPIO number") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20190910170050.GA55530@dtor-ws Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-11gpio: aspeed: Add in ast2600 details to Aspeed driverRashmica Gupta
The ast2600 is a new generation of SoC from ASPEED. Similarly to the ast2400 and ast2500, it has a GPIO controller for it's 3.3V GPIO pins. Additionally, it has a GPIO controller for 1.8V GPIO pins. As the register names for both controllers are the same and the 36 1.8V GPIOs and the first 36 of the 3.3V GPIOs are all bidirectional, we can use the same configuration struct and use the ngpio property to differentiate between the two sets of GPIOs. Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com> Link: https://lore.kernel.org/r/20190906063737.15428-1-rashmica.g@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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