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2020-03-20staging: gdm724x: use netdev_err() instead of pr_err()Lourdes Pedrajas
use netdev_err() which is a message printing function specific for network devices instead of pr_err(), in function netlink_send(). Signed-off-by: Lourdes Pedrajas <lu@pplo.net> Link: https://lore.kernel.org/r/20200320003947.31726-1-lu@pplo.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20staging: rtl8712: Remove unnecessary bracesGokce Kuler
Remove unnecessary braces for single statement block Signed-off-by: Gokce Kuler <gokcekuler@gmail.com> Link: https://lore.kernel.org/r/20200320000326.GA9349@siyah2 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20soundwire: qcom: add support for get_sdw_stream()Srinivas Kandagatla
Adding support to new get_sdw_stream() that can help machine driver to deal with soundwire stream. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200317092645.5705-1-srinivas.kandagatla@linaro.org [fix checkpatch error for "void * qcom_swrm_get_sdw_stream"] Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-03-20drm/i915/perf: Invalidate OA TLB on when closing perf streamUmesh Nerlige Ramappa
On running several back to back perf capture sessions involving closing and opening the perf stream, invalid OA reports are seen in the beginning of the OA buffer in some sessions. Fix this by invalidating OA TLB when the perf stream is closed or disabled on gen12. Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Fixes: 00a7f0d7155c ("drm/i915/tgl: Add perf support on TGL") Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200309211057.38575-1-umesh.nerlige.ramappa@intel.com (cherry picked from commit a639b0c15065df930467695b76ef38d5edaed049) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-03-20drm/i915/gem: Check for a closed context when looking up an engineChris Wilson
Beware that the context may already be closed as we try to lookup an engine. Closes: https://gitlab.freedesktop.org/drm/intel/issues/1389 Fixes: 130a95e9098e ("drm/i915/gem: Consolidate ctx->engines[] release") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316161447.18410-1-chris@chris-wilson.co.uk (cherry picked from commit a22f34783476a39d157b60485285aaa43554cb2d) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-03-20drm/i915/gt: Restrict gen7 w/a batch to HaswellChris Wilson
The residual w/a batch is causing system instablity on Ivybridge and Baytrail under some workloads, so disable until resolved. Closes: https://gitlab.freedesktop.org/drm/intel/issues/1405 Fixes: 47f8253d2b89 ("drm/i915/gen7: Clear all EU/L3 residual contexts") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com> Cc: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200311103640.26572-1-chris@chris-wilson.co.uk (cherry picked from commit a62774782b994026ac3198bf115717d55d536166) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-03-20phy: qcom-qusb2: Add new overriding tuning parameters in QUSB2 V2 PHYSandeep Maheswaram
Added support for overriding bias-ctrl-value,charge-ctrl-value and hsdisc-trim-value params for QUSB2 V2 PHY Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: qcom-qusb2: Add support for overriding tuning parameters in QUSB2 V2 PHYSandeep Maheswaram
Added new structure for overriding tuning parameters in QUSB2 V2 PHY as the override params are increased due to usage of generic QUSB2 V2 phy table. Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: qcom-qusb2: Add generic QUSB2 V2 PHY supportSandeep Maheswaram
Add generic QUSB2 V2 PHY table so the respective phys can use the same table. Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: rk-inno-usb2: Decrease verbosity of repeating log.Christoph Muellner
phy-rockchip-inno-usb2 logs the message "phy-ff2c0000.syscon:usb2-phy@100.2: charger = INVALID_CHARGER" constantly with a frequency of about 1 Hz and a verbosity level of INFO. As this is clearly annoying, this patch decreases the log level to DEBUG. Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: amlogic: Add Amlogic A1 USB2 PHY DriverHanjie Lin
This adds support for the USB2 PHY found in the Amlogic A1 SoC Family. It supports host mode only. Signed-off-by: Yue Wang <yue.wang@amlogic.com> Signed-off-by: Hanjie Lin <hanjie.lin@amlogic.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: ti: gmii-sel: add support for am654x/j721e socGrygorii Strashko
TI AM654x/J721E SoCs have the same PHY interface selection mechanism for CPSWx subsystem as TI SoCs (AM3/4/5/DRA7), but registers and bit-fields placement is different. This patch adds corresponding support for TI AM654x/J721E SoCs PHY interface selection. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: qualcomm: usb: Add SuperSpeed PHY driverJorge Ramirez-Ortiz
Controls Qualcomm's SS PHY 1.0.0 implemented on various SoCs on both the 20nm and 28nm process nodes. Based on Sriharsha Allenki's <sallenki@codeaurora.org> original code. [bod: Removed dependency on extcon. Switched to gpio-usb-conn to handle VBUS On/Off Switched to usb-role-switch to bind gpio-usb-conn to DWC3] Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Cc: Jorge Ramirez-Ortiz <jorge.ramirez.ortiz@gmail.com> Cc: Sriharsha Allenki's <sallenki@codeaurora.org> Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: qualcomm: Add Synopsys 28nm Hi-Speed USB PHY driverShawn Guo
Adds Qualcomm 28nm Hi-Speed USB PHY driver support. This PHY is usually paired with Synopsys DWC3 USB controllers on Qualcomm SoCs. The PHY can come in two flavours femtoPHY or picoPHY. This commit adds support for the femtoPHY with the possibility of extending to the picoPHY with additional future commits. Both PHYs are on a 28 nanometer process node. [bod: Updated qcom_snps_hsphy_set_mode to match new method signature Added disjunct on mode > 0 Removed regulator_set_voltage() in favour of setting floor in dts Removed 'snps' and from driver name Extended commit log to mention femtoPHY and picoPHY for future reference.] Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Jorge Ramirez-Ortiz <jorge.ramirez.ortiz@gmail.com> Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: phy-mtk-tphy: add a new reference clockChunfeng Yun
Usually the digital and analog phys use the same reference clock, but some platforms have two separate reference clocks for each of them, so add another optional clock to support them. In order to keep the clock names consistent with PHY IP's, change the da_ref for analog phy and ref clock for digital phy. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: phy-mtk-tphy: remove unused u3phya_ref clockChunfeng Yun
The u3phya_ref clock is already moved into sub-node, and renamed as ref clock, no used anymore now, so remove it, this can avoid confusion when support new platforms Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: phy-mtk-tphy: make the ref clock optionalChunfeng Yun
Sometimes the reference clock of USB3 PHY comes from oscillator directly, and no need refer to a fixed-clock in DTS anymore if make it optional. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: phy-mtk-tphy: add a property for internal resistanceChunfeng Yun
This is used to tune J-K voltage by internal R (resistance), the range is [0, 31], the resistance value is about 6.9K ohm for 0, 3.8K ohm for 31, and the step is 1K ohm Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: phy-mtk-tphy: add a property for disconnect thresholdChunfeng Yun
This is used to tune the threshold of disconnect, the index range is [0, 15], the threshold voltage is about 400mV for 0, 700mV for 15, and the step is 20mV. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: amlogic: G12A: Fix misuse of GENMASK macroJoe Perches
Arguments are supposed to be ordered high then low. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: qcom: qmp: Use power_on/off ops for PCIeBjorn Andersson
The PCIe PHY initialization requires the attached device to be present, which is primarily achieved by the PCI controller driver. So move the logic from init/exit to power_on/power_off. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: John Stultz <john.stultz@linaro.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: uniphier-pcie: Add SoC-dependent phy-mode function supportKunihiko Hayashi
Since this phy is shared by multiple devices including USB and PCIe, it is necessary to determine which device use this phy. This patch adds SoC-dependent functions to determine a device using this phy. When there is 'socionext,syscon' property in the pcie-phy node, the driver calls SoC-dependt function instead of checking .has_syscon in SoC-dependent data. The function configures the system controller to use phy for PCIe. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: uniphier-pcie: Add legacy SoC support for Pro5Kunihiko Hayashi
Add legacy SoC support that needs to manage gio clock and reset and to skip setting unimplemented phy parameters. This supports Pro5. This specifies only 1 port use because Pro5 doesn't set it in the power-on sequence. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: uniphier-usb3hs: Change Rx sync mode to avoid communication failureKunihiko Hayashi
In case of using default parameters, communication failure might occur in rare cases. This sets Rx sync mode parameter to avoid the issue. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: uniphier-usb3hs: Add legacy SoC support for Pro5Kunihiko Hayashi
Add legacy SoC support that needs to manage gio clock and reset. This supports Pro5. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: uniphier-usb3ss: Add Pro5 supportKunihiko Hayashi
Pro5 SoC has same scheme of USB3 ss-phy as Pro4, so the data for Pro5 is equivalent to Pro4. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: socionext: Use devm_platform_ioremap_resource()Kunihiko Hayashi
Use devm_platform_ioremap_resource() to simplify the code. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: qcom-qmp: Add MSM8996 UFS QMP supportBjorn Andersson
The support for the 14nm MSM8996 UFS PHY is currently handled by the UFS-specific 14nm QMP driver, due to the earlier need for additional operations beyond the standard PHY API. Add support for this PHY to the common QMP driver, to allow us to remove the old driver. Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Add support for subnode bindingsSwapnil Jakhade
Implement single link subnode support to the phy driver. Add reset support including PHY reset and individual lane reset. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Add platform dependent initialization structureSwapnil Jakhade
Add platform dependent initialization data for Torrent PHY used in TI's J721E SoC. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Use regmap to read and write DPTX PHY registersSwapnil Jakhade
Use regmap to read and write DPTX specific PHY registers. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Use regmap to read and write Torrent PHY registersSwapnil Jakhade
Use regmap for accessing Torrent PHY registers. Modify register offsets as defined in Torrent PHY user guide. Abstract address calculation using regmap APIs. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Implement PHY configure APIsSwapnil Jakhade
Add support for PHY configuration APIs. These will mainly reconfigure link rate, number of lanes, voltage swing and pre-emphasis values. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Add 19.2 MHz reference clock supportSwapnil Jakhade
Add configuration functions for 19.2 MHz refclock support. Add register configurations for SSC support. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Refactor code for reusabilitySwapnil Jakhade
Add a separate function to set different power state values. Use uniform polling timeout value. Also check return values of functions for proper error handling. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Add wrapper for DPTX register accessSwapnil Jakhade
Add wrapper functions to read, write DisplayPort specific PHY registers to improve code readability. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Add wrapper for PHY register accessSwapnil Jakhade
Add a wrapper function to write Torrent PHY registers to improve code readability. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-torrent: Adopt Torrent nomenclatureSwapnil Jakhade
- Change private data struct cdns_dp_phy to cdns_torrent_phy - Change module description and registration accordingly - Generic torrent functions have prefix cdns_torrent_phy_* - Functions specific to Torrent phy for DisplayPort are prefixed as cdns_torrent_dp_* Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20phy: cadence-dp: Rename to phy-cadence-torrentYuti Amonkar
Rename Cadence DP PHY driver from phy-cadence-dp to phy-cadence-torrent to make it more generic for future use. Modifiy Makefile and Kconfig accordingly. Also, change driver compatible from "cdns,dp-phy" to "cdns,torrent-phy".This will not affect ABI as the driver has never been functional, and therefore do not exist in any active use case. Signed-off-by: Yuti Amonkar <yamonkar@cadence.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-03-20platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tabletHans de Goede
Add touchscreen info for the Chuwi Vi8 Plus tablet. This tablet uses a Chipone ICN8505 touchscreen controller, with the firmware used by the touchscreen embedded in the EFI firmware. Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200115163554.101315-11-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20platform/x86: touchscreen_dmi: Add EFI embedded firmware info supportHans de Goede
Sofar we have been unable to get permission from the vendors to put the firmware for touchscreens listed in touchscreen_dmi in linux-firmware. Some of the tablets with such a touchscreen have a touchscreen driver, and thus a copy of the firmware, as part of their EFI code. This commit adds the necessary info for the new EFI embedded-firmware code to extract these firmwares, making the touchscreen work OOTB without the user needing to manually add the firmware. Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200115163554.101315-10-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20Input: icn8505 - Switch to firmware_request_platform for retreiving the fwHans de Goede
Unfortunately sofar we have been unable to get permission to redistribute icn8505 touchscreen firmwares in linux-firmware. This means that people need to find and install the firmware themselves before the touchscreen will work Some UEFI/x86 tablets with an icn8505 touchscreen have a copy of the fw embedded in their UEFI boot-services code. This commit makes the icn8505 driver use the new firmware_request_platform function, which will fallback to looking for such an embedded copy when direct filesystem lookup fails. This will make the touchscreen work OOTB on devices where there is a fw copy embedded in the UEFI code. Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200115163554.101315-9-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20Input: silead - Switch to firmware_request_platform for retreiving the fwHans de Goede
Unfortunately sofar we have been unable to get permission to redistribute Silead touchscreen firmwares in linux-firmware. This means that people need to find and install the firmware themselves before the touchscreen will work Some UEFI/x86 tablets with a Silead touchscreen have a copy of the fw embedded in their UEFI boot-services code. This commit makes the silead driver use the new firmware_request_platform function, which will fallback to looking for such an embedded copy when direct filesystem lookup fails. This will make the touchscreen work OOTB on devices where there is a fw copy embedded in the UEFI code. Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200115163554.101315-8-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20Merge branch 'topic/ro_wordlength' into nextVinod Koul
2020-03-20soundwire: stream: Add read_only_wordlength flag to port propertiesSrinivas Kandagatla
According to SoundWire Specification Version 1.2. "A Data Port number X (in the range 0-14) which supports only one value of WordLength may implement the WordLength field in the DPX_BlockCtrl1 Register as Read-Only, returning the fixed value of WordLength in response to reads." As WSA881x interfaces in PDM mode making the only field "WordLength" in DPX_BlockCtrl1" fixed and read-only. Behaviour of writing to this register on WSA881x soundwire slave with Qualcomm Soundwire Controller is throwing up an error. Not sure how other controllers deal with writing to readonly registers, but this patch provides a way to avoid writes to DPN_BlockCtrl1 register by providing a read_only_wordlength flag in struct sdw_dpn_prop Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200311113545.23773-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-03-20firmware: Add new platform fallback mechanism and firmware_request_platform()Hans de Goede
In some cases the platform's main firmware (e.g. the UEFI fw) may contain an embedded copy of device firmware which needs to be (re)loaded into the peripheral. Normally such firmware would be part of linux-firmware, but in some cases this is not feasible, for 2 reasons: 1) The firmware is customized for a specific use-case of the chipset / use with a specific hardware model, so we cannot have a single firmware file for the chipset. E.g. touchscreen controller firmwares are compiled specifically for the hardware model they are used with, as they are calibrated for a specific model digitizer. 2) Despite repeated attempts we have failed to get permission to redistribute the firmware. This is especially a problem with customized firmwares, these get created by the chip vendor for a specific ODM and the copyright may partially belong with the ODM, so the chip vendor cannot give a blanket permission to distribute these. This commit adds a new platform fallback mechanism to the firmware loader which will try to lookup a device fw copy embedded in the platform's main firmware if direct filesystem lookup fails. Drivers which need such embedded fw copies can enable this fallback mechanism by using the new firmware_request_platform() function. Note that for now this is only supported on EFI platforms and even on these platforms firmware_fallback_platform() only works if CONFIG_EFI_EMBEDDED_FIRMWARE is enabled (this gets selected by drivers which need this), in all other cases firmware_fallback_platform() simply always returns -ENOENT. Reported-by: Dave Olsthoorn <dave@bewaar.me> Suggested-by: Peter Jones <pjones@redhat.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200115163554.101315-5-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-20Merge tag 'stable-shared-branch-for-driver-tree' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into driver-core-next Ard writes: Stable shared branch between EFI and driver tree Stable shared branch to ease the integration of Hans's series to support device firmware loaded from EFI boot service memory regions. [PATCH v12 00/10] efi/firmware/platform-x86: Add EFI embedded fw support https://lore.kernel.org/linux-efi/20200115163554.101315-1-hdegoede@redhat.com/ * tag 'stable-shared-branch-for-driver-tree' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi: Add embedded peripheral firmware support efi: Export boot-services code and data as debugfs-blobs
2020-03-20virt_wifi: implement ndo_get_iflinkTaehee Yoo
->ndo_get_iflink() is useful for finding lower interface. Test commands: ip link add dummy0 type dummy ip link add vw1 link dummy0 type virt_wifi ip link show vw1 Before: 9: vw1: <BROADCAST,MULTICAST> ... After: 9: vw1@dummy0: <BROADCAST,MULTICAST> ... Signed-off-by: Taehee Yoo <ap420073@gmail.com> Link: https://lore.kernel.org/r/20200305090636.28221-1-ap420073@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211_hwsim: add frame transmission support over virtioErel Geron
This allows communication with external entities. It also required fixing up the netlink policy, since NLA_UNSPEC attributes are no longer accepted. Signed-off-by: Erel Geron <erelx.geron@intel.com> [port to backports, inline the ID, use 29 as the ID as requested, drop != NULL checks, reduce ifdefs] Link: https://lore.kernel.org/r/20200305143212.c6e4c87d225b.I7ce60bf143e863dcdf0fb8040aab7168ba549b99@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20platform/x86: intel_pmc_core: Make pmc_core_substate_res_show() genericGayatri Kammela
Currently pmc_core_substate_res_show() uses array of char pointers i.e., lpm_modes for Tiger Lake directly to iterate through and to get the number of low power modes which is hardcoded and cannot be re-used for future platforms that support sub-states. To maintain readability, make pmc_core_substate_res_show() generic, so that it can re-used for future platforms. Cc: Chen Zhou <chenzhou10@huawei.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David E. Box <david.e.box@intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>