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259b8366 |
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09-Jun-2023 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
ata: ahci_platform: Make code agnostic to OF/ACPI With the help of a new device_is_compatible() make the driver code agnostic to the OF/ACPI. This makes it neater. As a side effect the header inclusions is corrected (seems mod_devicetable.h was implicitly included). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Message-ID: <20230609154900.43024-4-andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
a7eb54d4 |
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12-May-2023 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
ata: libata: Make ata_platform_remove_one return void The function returned zero unconditionally, so the function returning an int is something between useless and irritating. With the goal to make platform drivers' remove function return void, it's helpful to convert the function accordingly. This converts several drivers to the new .remove_new callback that was introduced to smoothen the platform driver conversion. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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#
25df73d9 |
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22-Mar-2023 |
Bart Van Assche <bvanassche@acm.org> |
scsi: ata: Declare SCSI host templates const Make it explicit that ATA host templates are not modified. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> (for DWC AHCI SATA) Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> (for Tegra) Cc: Christoph Hellwig <hch@lst.de> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.de> Cc: John Garry <john.g.garry@oracle.com> Cc: Mike Christie <michael.christie@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20230322195515.1267197-5-bvanassche@acm.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
33629d35 |
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09-Sep-2022 |
Serge Semin <Sergey.Semin@baikalelectronics.ru> |
ata: ahci: Add DWC AHCI SATA controller support Synopsys AHCI SATA controller can work pretty under with the generic AHCI-platform driver control. But there are vendor-specific peculiarities which can tune the device performance up and which may need to be fixed up for proper device functioning. In addition some DWC AHCI-based controllers may require small platform-specific fixups, so adding them in the generic AHCI driver would have ruined the code simplicity. Shortly speaking in order to keep the generic AHCI-platform code clean and have DWC AHCI SATA-specific features supported we suggest to add a dedicated DWC AHCI SATA device driver. Aside with the standard AHCI-platform resources getting, enabling/disabling and the controller registration the new driver performs the next actions. First of all there is a way to verify whether the HBA/ports capabilities activated in OF are correct. Almost all features availability is reflected in the vendor-specific parameters registers. So the DWC AHCI driver does the capabilities sanity check based on the corresponding fields state. Secondly if either the Command Completion Coalescing or the Device Sleep feature is enabled the DWC AHCI-specific internal 1ms timer must be fixed in accordance with the application clock signal frequency. In particular the timer value must be set to be Fapp * 1000. Normally the SoC designers pre-configure the TIMER1MS register to contain a correct value by default. But the platforms can support the application clock rate change. If that happens the 1ms timer value must be accordingly updated otherwise the dependent features won't work as expected. In the DWC AHCI driver we suggest to rely on the "aclk" reference clock rate to set the timer interval up. That clock source is supposed to be the AHCI SATA application clock in accordance with the DT bindings. Finally DWC AHCI SATA controller AXI/AHB bus DMA-engine can be tuned up to transfer up to 1024 * FIFO words at a time by setting the Tx/Rx transaction size in the DMA control register. The maximum value depends on the DMA data bus and AXI/AHB bus maximum burst length. In most of the cases it's better to set the maximum possible value to reach the best AHCI SATA controller performance. But sometimes in order to improve the system interconnect responsiveness, transferring in smaller data chunks may be more preferable. For such cases and for the case when the default value doesn't provide the best DMA bus performance we suggest to use the new HBA-port specific DT-properties "snps,{tx,rx}-ts-max" to tune the DMA transactions size up. After all the settings denoted above are handled the DWC AHCI SATA driver proceeds further with the standard AHCI-platform host initializations. Note since DWC AHCI controller is now have a dedicated driver we can discard the corresponding compatible string from the ahci-platform.c module. The same concerns "snps,spear-ahci" compatible string, which is also based on the DWC AHCI IP-core. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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#
3f74cd04 |
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09-Sep-2022 |
Serge Semin <Sergey.Semin@baikalelectronics.ru> |
ata: libahci_platform: Parse ports-implemented property in resources getter The ports-implemented property is mainly used on the OF-based platforms with no ports mapping initialized by a bootloader/BIOS firmware. Seeing the same of_property_read_u32()-based pattern has already been implemented in the generic AHCI LLDD (glue) driver and in the Mediatek, St AHCI drivers let's move the property read procedure to the generic ahci_platform_get_resources() method. Thus we'll have the forced ports mapping feature supported for each OF-based platform which requires that, and stop re-implementing the same pattern in there a bit simplifying the code. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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#
5e776d7b |
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03-Mar-2022 |
Geert Uytterhoeven <geert+renesas@glider.be> |
ata: Drop commas after OF match table sentinels It does not make sense to have a comma after a sentinel, as any new elements must be added before the sentinel. Add comments to clarify the purpose of the empty elements. Rewrap entries to a single line to have a consistent style. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Acked-by: Florian Fainelli <f.fainelli@gmail.com> [ahci_brcm] Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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#
8d7c56d0 |
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20-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 45 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 11 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.370933192@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
20bdc376 |
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07-Sep-2018 |
Suman Tripathi <stripathi@amperecomputing.com> |
ata: Disable AHCI ALPM feature for Ampere Computing eMAG SATA Due to hardware errata, Ampere Computing eMAG SATA can't support AHCI ALPM feature. This patch disables the AHCI ALPM feature for eMAG SATA. Signed-off-by: Suman Trpathi <stripathi@amperecomputing.com> Signed-off-by: Rameshwar Prasad Sahu <rameshwar.sahu@amperecomputing.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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#
2d17f460 |
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22-Aug-2018 |
Kunihiko Hayashi <hayashi.kunihiko@socionext.com> |
ata: ahci_platform: enable to get and control reset Unlike SoC-specific driver, generic ahci_platform driver doesn't have any chances to control resets. This adds AHCI_PLATFORM_GET_RESETS to ahci_platform_get_resources() on the generic driver to enable reset control support. Suggested-by: Hans de Goede <hdegoede@redhat.com> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
16af2d65 |
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22-Aug-2018 |
Kunihiko Hayashi <hayashi.kunihiko@socionext.com> |
ata: add an extra argument to ahci_platform_get_resources() Add an extra argument to ahci_platform_get_resources(), that is for the bitmap representing the resource to get in this function. Currently there is no resources to be defined, so all the callers set '0' to the argument. Suggested-by: Hans de Goede <hdegoede@redhat.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
eac7e072 |
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06-Aug-2018 |
Tejun Heo <tj@kernel.org> |
Revert "ata: ahci_platform: allow disabling of hotplug to save power" This reverts commit aece27a2f01be4bb7683790f69cd1bed3a0929a2. Causes boot failure on some devices. http://lore.kernel.org/r/CA+G9fYuKW_jCFZPqG4tz=QY9ROfHO38KiCp9XTA+KaDOFVtcqQ@mail.gmail.com Signed-off-by: Tejun Heo <tj@kernel.org>
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#
95669844 |
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24-Apr-2018 |
Krzysztof Kozlowski <krzk@kernel.org> |
ata: ahci-platform: Remove support for Exynos5440 The Exynos5440 is not actively developed, there are no development boards available and probably there are no real products with it. Remove wide-tree support for Exynos5440. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org>
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#
aece27a2 |
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29-May-2018 |
Samuel Morris <samorris@lexmark.com> |
ata: ahci_platform: allow disabling of hotplug to save power A number of resources remain powered to support hotplug. On platforms I've worked with, allowing the ahci_platform to suspend saves about 150mW. This patch enables rpm and allows the device to be auto-suspended through sysfs. Signed-off-by: Samuel Morris <samorris@lexmark.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
8eede5bc |
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20-Jul-2017 |
Nate Watterson <nwatters@codeaurora.org> |
ata: ahci_platform: Add shutdown handler The newly introduced ahci_platform_shutdown() method is called during system shutdown to disable host controller DMA and interrupts in order to avoid potentially corrupting or otherwise interfering with a new kernel being started with kexec. Signed-off-by: Nate Watterson <nwatters@codeaurora.org> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
17dcc37e |
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01-Apr-2016 |
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> |
ata: ahci-platform: Add ports-implemented DT bindings. On some SOCs PORTS_IMPL register value is never programmed by the firmware and left at zero value. Which means that no sata ports are available for software. AHCI driver used to cope up with this by fabricating the port_map if the PORTS_IMPL register is read zero, but recent patch broke this workaround as zero value was valid for NVMe disks. This patch adds ports-implemented DT bindings as workaround for this issue in a way that DT can can override the PORTS_IMPL register in cases where the firmware did not program it already. Fixes: 566d1827df2e ("libata: disable forced PORTS_IMPL for >= AHCI 1.3") Cc: stable@vger.kernel.org # v4.5+ Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
a2127e40 |
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11-Feb-2016 |
Aleksey Makarov <aleksey.makarov@caviumnetworks.com> |
libata: support AHCI on OCTEON platform The OCTEON SATA controller is currently found on cn71XX devices. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: Vinita Gupta <vgupta@caviumnetworks.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
fc4f370d |
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07-Sep-2015 |
Tang Yuantian <Yuantian.Tang@freescale.com> |
Revert "ahci: added support for Freescale AHCI sata" This reverts commit 5163fb62541e ("ahci: added support for Freescale AHCI sata") The reverted patch added Freescale QorIQ AHCI sata support to ahci_platform driver though, but it left SoC specific settings to uboot. It leads to QorIQ sata heavily depending on uboot. In order to removing the dependency we first revert the old patch and then will add a new driver for QorIQ SATA. Since there are no LS* platforms that have been upstreamed, So the revert would not break anything exists. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
2051e924 |
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06-Jul-2015 |
Suthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com> |
ata: ahci_platform: Add ACPI _CLS matching This patch adds ACPI supports for AHCI platform driver, which uses _CLS method to match the device. The following is an example of ASL structure in DSDT for a SATA controller, which contains _CLS package to be matched by the ahci_platform driver: Device (AHC0) // AHCI Controller { Name(_HID, "AMDI0600") Name (_CCA, 1) Name (_CLS, Package (3) { 0x01, // Base Class: Mass Storage 0x06, // Sub-Class: serial ATA 0x01, // Interface: AHCI }) Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0xE0300000, 0x00010000) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) { 387 } }) } Also, since ATA driver should not require PCI support for ATA_ACPI, this patch removes dependency in the driver/ata/Kconfig. Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
5163fb62 |
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04-Jun-2015 |
Tang Yuantian <Yuantian.Tang@freescale.com> |
ahci: added support for Freescale AHCI sata Freescale introduced QorIQ series SOCs, like ls1021 ls2085, with AHCI sata support. It complies with the serial ATA 3.0 specification and the AHCI 1.3 specification. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: Yuantian Tang <Yuantian.Tang@freescale.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
018d5ef2 |
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28-Jan-2015 |
Akinobu Mita <akinobu.mita@gmail.com> |
ata: ahci_platform: fix owner module reference mismatch for scsi host The owner module reference of the ahci platform's scsi_host is initialized to libahci_platform's one, because these drivers use a scsi_host_template defined in libahci_platform. So these drivers can be unloaded even if the scsi device is being accessed. This fixes it by pushing the scsi_host_template from libahci_platform to all leaf drivers. The scsi_host_template is passed through a new argument of ahci_platform_init_host(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: linux-ide@vger.kernel.org Cc: linux-scsi@vger.kernel.org
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#
65c662ab |
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20-Oct-2014 |
Wolfram Sang <wsa@kernel.org> |
ata: drop owner assignment from platform_drivers A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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#
515d9b2c |
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12-Aug-2014 |
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> |
ata: remove deprecated struct ahci_platform_data The last user of the deprecated struct ahci_platform_data has been cleaned up recently (SPEAr1340 got a proper PHY driver). Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
30f3c73c |
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30-Jul-2014 |
Antoine Tenart <atenart@kernel.org> |
ata: ahci_platform: add a generic AHCI compatible The ahci_platform driver is a generic driver using the libahci_platform functions. Add a generic compatible to avoid having an endless list of compatibles with no differences for the same driver. Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
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#
725c7b57 |
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30-Jul-2014 |
Antoine Tenart <atenart@kernel.org> |
ata: libahci_platform: move port_map parameters into the AHCI structure This patch moves force_port_map and mask_port_map into the ahci_host_priv structure. This allows to modify them into the AHCI framework. This is needed by the new dt bindings representing ports as the port_map mask is computed automatically. Parameters modifying force_port_map, mask_port_map and flags have been removed from the ahci_platform_init_host() function, and inputs in the ahci_host_priv structure are now directly filed. Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
72cbaa3d |
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24-Jun-2014 |
Kefeng Wang <kefeng.wang@linaro.org> |
ahci: disable ncq feature for hisilicon sata NCQ feature is unsupported on hisilicon sata controller, so disable it. This version of IP is used by hip04 and hix5hd2 soc. tj: "|=" was replaced with "=" for no reason. Restored "|=". Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org> Sigend-off-by: Tejun Heo <tj@kernel.org>
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#
a1a205df |
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14-May-2014 |
Kefeng Wang <kefeng.wang@linaro.org> |
ahci: add support for Hisilicon sata The hip04 SoC of hisilicon has an AHCI compliant SATA controller, and it is compliant with the ahci 1.3 and sata 3.0 specification. There is a wrong bit in HOST_CAP of hip04 sata controller, which enable unsupported feature of FBS, use AHCI_HFLAG_NO_FBS hflag to disable it. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
f9f36917 |
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14-May-2014 |
Kefeng Wang <kefeng.wang@linaro.org> |
libahci_platform: add host_flags parameter in ahci_platform_init_host() Add a dynamic host_flags argument to make ahci_platform_init_host more flexible, then remove the AHCI_HFLAGS(...) argument from some driver's ata_port_info, and pass that in as the new argument. Cc: Hans de Geode <hdegoede@redhat.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
fd990556 |
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25-Mar-2014 |
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> |
ata: move library code from ahci_platform.c to libahci_platform.c Move AHCI platform library code from ahci_platform.c to libahci_platform.c and fix dependencies for ahci_st, ahci_imx and ahci_sunxi drivers. Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
83b03fd6 |
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25-Mar-2014 |
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> |
ata: ahci_platform: fix ahci_platform_data->suspend method handling Looking at ST SPEAr1340 AHCI code (the only user of the deprecated pdata->suspend and pdata->resume) it is obvious the we should return after calling pdata->suspend() only if the function have returned non-zero return value. The code has been broken since commit 1e70c2 ("ata/ahci_platform: Add clock framework support"). Fix it. Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
5434b203 |
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14-Mar-2014 |
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> |
ata: ahci_platform: fix devm_ioremap_resource() return value checking devm_ioremap_resource() returns a pointer to the remapped memory or an ERR_PTR() encoded error code on failure. Fix the check inside ahci_platform_get_resources() accordingly. Also while at it remove a needless line break. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
6ef95e87 |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci_platform: Drop unused ahci_platform_data members These members are not used anywhere, and in the future we want ahci_platform_data to go away entirely so there is no reason to keep these around. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
c093e1d3 |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci_platform: Drop support for imx53-ahci platform device type Since the 3.13 release the ahci_imx driver has proper devicetree enabled support for ahci on imx53 and that is used instead of the old board file created imx53-ahci platform device. Note this patch also complete drops the id-table, an id-table is not needed for a single id platform driver, the name field in the driver struct suffices. And the code already has an explicit "MODULE_ALIAS("platform:ahci");" so the id-table is not needed for that either. Cc: Marek Vasut <marex@denx.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
f1df8641 |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci_platform: Drop support for ahci-strict platform device type I've done a grep over the entire kernel tree and nothing is using this (anymore?). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
e708e46e |
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22-Feb-2014 |
Roger Quadros <rogerq@ti.com> |
ata: ahci_platform: runtime resume the device before use On OMAP platforms the device needs to be runtime resumed before it can be accessed. The OMAP HWMOD framework takes care of enabling the module and its resources based on the device's runtime PM state. In this patch we runtime resume during .probe() and runtime suspend after .remove(). We also update the runtime PM state during .resume(). CC: Balaji T K <balajitk@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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#
21b5faee |
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22-Feb-2014 |
Roger Quadros <rogerq@ti.com> |
ata: ahci_platform: Manage SATA PHY Some platforms have a PHY hooked up to the SATA controller. The PHY needs to be initialized and powered up for SATA to work. We do that using the PHY framework. tj: Minor comment formatting updates. CC: Balaji T K <balajitk@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo<tj@kernel.org>
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#
c4311471 |
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22-Feb-2014 |
Roger Quadros <rogerq@ti.com> |
ata: ahci_platform: Add DT compatible for Synopsis DWC AHCI controller Add compatible string "snps,dwc-ahci", which should be used for Synopsis Designware SATA cores. e.g. on TI OMAP5 and DRA7 platforms. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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648cb6fd |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci-platform: "Library-ise" suspend / resume functionality Split suspend / resume code into host suspend / resume functionality and resource enable / disabling phases, and export the new suspend_ / resume_host functions. tj: Minor comment formatting updates. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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23b07d4c |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci-platform: "Library-ise" ahci_probe functionality ahci_probe consists of 3 steps: 1) Get resources (get mmio, clks, regulator) 2) Enable resources, handled by ahci_platform_enable_resouces 3) The more or less standard ahci-host controller init sequence This commit refactors step 1 and 3 into separate functions, so the platform drivers for AHCI implementations which need a specific order in step 2, and / or need to do some custom register poking at some time, can re-use ahci-platform.c code without needing to copy and paste it. Note that ahci_platform_init_host's prototype takes the 3 non function members of ahci_platform_data as arguments, the idea is that drivers using the new exported utility functions will not use ahci_platform_data at all, and hopefully in the future ahci_platform_data can go away entirely. tj: Minor comment formatting updates. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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96a01ba5 |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci-platform: Add enable_ / disable_resources helper functions tj: Minor comment formatting updates. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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4b3e603a |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci-platform: Add support for an optional regulator for sata-target power Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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156c5887 |
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22-Feb-2014 |
Hans de Goede <hdegoede@redhat.com> |
ahci-platform: Add support for devices with more then 1 clock The allwinner-sun4i AHCI controller needs 2 clocks to be enabled and the imx AHCI controller needs 3 clocks to be enabled. tj: Minor comment formatting updates. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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1bc18086 |
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21-Jan-2014 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
ata: delete non-required instances of include <linux/init.h> None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: linux-ide@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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2435dcb9 |
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21-Nov-2013 |
Alistair Popple <alistair@popple.id.au> |
ahci: add support for IBM Akebono platform device The new IBM Akebono board has a PPC476GTR SoC with an AHCI compliant SATA controller. This patch adds a compatible property for the new SoC to the AHCI platform driver. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org
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8b789d89 |
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14-Oct-2013 |
Richard Zhu <r65037@freescale.com> |
ahci: imx: setup power saving methods In order to save power consumption as much as possible. * Disable sata phy internal pll reference clock when sysetem enter into suspend mode, enable it after resume. * Setup module parameter used to enable imx ahci test power down mode(PDDQ) or not, when there is no device detected on the port * minor modifications: - The format of the copyright is changed, because that the original one can't pass fsl internal patch reivew without the character '(c)'. - Exports ahci_platform_ops and ahci_error_handler(). NOTE: * The hot-plug can't be supported when PDDQ mode is ever enabled. * module parameter usage how-to: - default: enable PDDQ mode when no device detected. - add "ahci-imx.hotplug=1" into kernel command line if your don't want to enable PDDQ mode when no device detected on the port. tj: Slightly updated description and comments. Signed-off-by: Richard Zhu <r65037@freescale.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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0fed4c09 |
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04-Oct-2013 |
Jingoo Han <jg1.han@samsung.com> |
ahci_platform: use dev_info() instead of printk() Change "raw" printk() call to dev_info() to provide a better message to userspace so it can properly identify the device and not just have to guess. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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1e8f5f76 |
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16-Apr-2013 |
Girish K S <girishks2000@gmail.com> |
ahci: sata: add support for exynos5440 sata This patch adds the compatible string of the exynos5440 sata controller compliant with the ahci 1.3 and sata 3.0 specification. changes in v2: changed the compatible string by adding the actual IP owners name instead of the SoC vendor name. Signed-off-by: Girish K S <ks.giri@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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0ec24914 |
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21-Dec-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
Drivers: ata: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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071d3ad3 |
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06-Dec-2012 |
Brian Norris <computersforpeace@gmail.com> |
ahci_platform: make structs static These structs are used only for ahci_platform.c, so they should be static. Thanks to Fengguang for the (automated) suggestion. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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83291d65 |
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02-Nov-2012 |
Brian Norris <computersforpeace@gmail.com> |
ahci_platform: utilize common ata_platform_remove_one() Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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1896b15e |
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02-Nov-2012 |
Brian Norris <computersforpeace@gmail.com> |
ahci_platform: perform platform exit in host_stop() hook AHCI platform devices may provide an exit() routine, via ahci_platform_data, that powers off the SATA core. Such a routine should be executed from the ata_port_operations host_stop() hook. That way, the ATA subsystem can perform any last-minute hardware cleanup (via devres, for example), then trigger the power-off at the appropriate time. This patch fixes bus errors triggered during module removal or device unbinding, seen on an SoC SATA core. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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9a99e476 |
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02-Nov-2012 |
Brian Norris <computersforpeace@gmail.com> |
ahci_platform: convert to module_platform_driver The ahci_platform driver can now use the module_platform_driver() macro. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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941c77fd |
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02-Nov-2012 |
Brian Norris <computersforpeace@gmail.com> |
ahci_platform: enable hotplug unbinding platform_driver_probe() should be used for registering this driver only if we want to "...remove its run-once probe() infrastructure from memory after the driver has bound to the device." However, we may want to leave the probe infrastructure in place in order to support binding/unbinding a device dynamically. This is useful, for instance, as a power management mechanism, where a device can be totally powered down when unbound (whereas with runtime power management, powering down the SATA core would incur unacceptable loss of functionality). Thus, convert this driver to use platform_driver_register(). Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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29448ec1 |
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16-Oct-2012 |
Yuanhan Liu <yuanhan.liu@linux.intel.com> |
[libata] PM callbacks should be conditionally compiled on CONFIG_PM_SLEEP This will fix warnings like following when CONFIG_PM_SLEEP is not set: warning: 'xxx_suspend' defined but not used [-Wunused-function] warning: 'xxx_resume' defined but not used [-Wunused-function] Because SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM). Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: linux-ide@vger.kernel.org Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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f1e70c2c |
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26-Aug-2012 |
Viresh Kumar <viresh.kumar@linaro.org> |
ata/ahci_platform: Add clock framework support On many architectures, drivers are supposed to prepare/unprepare & enable/disable functional clock of device. This patch adds clock support for ahci_platform. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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8996b89d |
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06-Sep-2012 |
Mark Langsdorf <mark.langsdorf@calxeda.com> |
ata: add platform driver for Calxeda AHCI controller Calxeda highbank SATA phy has intermittent problems bringing up a link with Gen3 drives. Retrying the phy hard reset can work-around this issue, but each reset also disables spread spectrum support. The reset function also needs to reprogram the phy to enable spread spectrum support. Create a new driver based on ahci_platform to support the Calxeda Highbank SATA controller. Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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18c25ff4 |
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16-Mar-2012 |
Shiraz Hashim <shiraz.linux.kernel@gmail.com> |
ahci_platform: add hibernation callbacks Use existing suspend, resume implementation for hibernation callbacks. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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5f098a3e |
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21-Apr-2012 |
Viresh Kumar <vireshk@kernel.org> |
ata: ahci_platform: Add synopsys ahci controller in DT's compatible list SPEAr13xx series of SoCs contain Synopsys AHCI SATA Controller which shares ahci_platform driver with other controller versions. This patch updates DT compatible list for ahci_platform. It also updates and renames binding documentation to more generic name. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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d408e2b1 |
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21-Feb-2012 |
Brian Norris <computersforpeace@gmail.com> |
ahci_platform: add STRICT_AHCI platform type Some platforms need to make use of the AHCI_HFLAG_DELAY_ENGINE flag. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Cc: stable@kernel.org
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17ab594f |
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18-Nov-2011 |
Brian Norris <computersforpeace@gmail.com> |
ahci: platform support for suspend/resume Add platform hooks for custom suspend() and resume() functions. The generic suspend/resume code in drivers/ata/ahci_platform.c is adapted from the PCI version in drivers/ata/ahci.c. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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ff956135 |
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15-Nov-2011 |
Rob Herring <rob.herring@calxeda.com> |
[libata] ahci_platform: fix DT probing The change in commit 904c04feaf13ed "ahci_platform: Add the board_ids..." doesn't work for the DT probing case as platform_get_device_id returns NULL. Pick the default ahci_port_info in this case. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: Richard Zhu <richard.zhu@linaro.org> Cc: linux-ide@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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00345614 |
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31-Oct-2011 |
JiSheng Zhang <jszhang3@gmail.com> |
ahci_platform: use dev_get_platdata() Use dev_get_platdata() to retrieve the struct ahci_platform_data data from the platform. Signed-off-by: JiSheng Zhang <jszhang3@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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02aac316 |
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03-Nov-2010 |
Rob Herring <rob.herring@calxeda.com> |
ahci: add DT binding for Calxeda AHCI controller Add devicetree match table to ahci platform driver for Calxeda Highbank AHCI controller. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: linux-ide@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org
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904c04fe |
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28-Sep-2011 |
Richard Zhu <richard.zhu@linaro.org> |
[libata] ahci_platform: Add the board_ids and pi refer to different features On imx53 AHCI, soft reset fails with IPMS set when PMP is enabled but SATA HDD/ODD is connected to SATA port, do soft reset again to port 0. So the 'ahci_pmp_retry_srst_ops' is required when imx53 ahci is present. Signed-off-by: Richard Zhu <richard.zhu@linaro.org> Acked-by: Eric Miao <eric.miao@linaro.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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6b7ae954 |
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01-Sep-2010 |
Tejun Heo <tj@kernel.org> |
libata: reimplement link power management The current LPM implementation has the following issues. * Operation order isn't well thought-out. e.g. HIPM should be configured after IPM in SControl is properly configured. Not the other way around. * Suspend/resume paths call ata_lpm_enable/disable() which must only be called from EH context directly. Also, ata_lpm_enable/disable() were called whether LPM was in use or not. * Implementation is per-port when it should be per-link. As a result, it can't be used for controllers with slave links or PMP. * LPM state isn't managed consistently. After a link reset for whatever reason including suspend/resume the actual LPM state would be reset leaving ap->lpm_policy inconsistent. * Generic/driver-specific logic boundary isn't clear. Currently, libahci has to mangle stuff which libata EH proper should be handling. This makes the implementation unnecessarily complex and fragile. * Tied to ALPM. Doesn't consider DIPM only cases and doesn't check whether the device allows HIPM. * Error handling isn't implemented. Given the extent of mismatch with the rest of libata, I don't think trying to fix it piecewise makes much sense. This patch reimplements LPM support. * The new implementation is per-link. The target policy is still port-wide (ap->target_lpm_policy) but all the mechanisms and states are per-link and integrate well with the rest of link abstraction and can work with slave and PMP links. * Core EH has proper control of LPM state. LPM state is reconfigured when and only when reconfiguration is necessary. It makes sure that LPM state is reset when probing for new device on the link. Controller agnostic logic is now implemented in libata EH proper and driver implementation only has to deal with controller specifics. * Proper error handling. LPM config failure is attributed to the device on the link and LPM is disabled for the link if it fails repeatedly. * ops->enable/disable_pm() are replaced with single ops->set_lpm() which takes @policy and @hints. This simplifies driver specific implementation. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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c93b263e |
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01-Sep-2010 |
Tejun Heo <tj@kernel.org> |
libata: clean up lpm related symbols and sysfs show/store functions Link power management related symbols are in confusing state w/ mixed usages of lpm, ipm and pm. This patch cleans up lpm related symbols and sysfs show/store functions as follows. * lpm states - NOT_AVAILABLE, MIN_POWER, MAX_PERFORMANCE and MEDIUM_POWER are renamed to ATA_LPM_UNKNOWN and ATA_LPM_{MIN|MAX|MED}_POWER. * Pre/postfixes are unified to lpm. * sysfs show/store functions for link_power_management_policy were curiously named get/put and unnecessarily complex. Renamed to show/store and simplified. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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fad16e7a |
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21-Sep-2010 |
Tejun Heo <htejun@gmail.com> |
ahci: fix module refcount breakage introduced by libahci split libata depends on scsi_host_template for module reference counting and sht's should be owned by each low level driver. During libahci split, the sht was left with libahci.ko leaving the actual low level drivers not reference counted. This made ahci and ahci_platform always unloadable even while they're being actively used. Fix it by defining AHCI_SHT() macro in ahci.h and defining a sht for each low level ahci driver. stable: only applicable to 2.6.35. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Pedro Francisco <pedrogfrancisco@gmail.com> Tested-by: Michael Tokarev <mjt@tls.msk.ru> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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da10a200 |
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25-Jun-2010 |
Anton Vorontsov <avorontsov@mvista.com> |
ahci_platform: Remove unneeded ahci_driver.probe assignment The driver is using platform_driver_probe() during initialization, so ahci_driver.probe hook is never used. But it causes the following (harmless, luckily) section mismatch: WARNING: vmlinux.o(.data+0x2fb20): Section mismatch in reference from the variable ahci_driver to the function .init.text:ahci_probe() This patch removes the ahci_driver.probe assignment, thus fixes the warning. p.s. Note that there's another patch[1] from Rene Bolldorf that tried to solve the same issue by __refdata annotation. __refdata says that this reference is actually OK, but in fact it is not OK, because dereferencing .probe() will cause problems. So the proper fix is to remove the assignment. [1] http://kerneltrap.org/mailarchive/linux-kernel/2010/3/18/4549547 Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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08354809 |
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25-Jun-2010 |
Jassi Brar <jassi.brar@samsung.com> |
ahci_platform: Provide for vendor specific init Some AHCI implementations may use Vendor Specific HBA[A0h, FFh] and/or Port[70h, 7Fh] registers to 'prepare' for initialization. For that, the platform needs memory mapped address of AHCI registers. This patch adds the 'mmio' argument and reorders the call to platform init function. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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55787183 |
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14-May-2010 |
Jeff Garzik <jeff@garzik.org> |
ahci_platform: properly set up EM messaging Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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fbaf666b |
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29-Mar-2010 |
Tejun Heo <tj@kernel.org> |
libata: update gfp/slab.h includes Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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1c2a49f6 |
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04-Mar-2010 |
Anton Vorontsov <avorontsov@ru.mvista.com> |
ahci: Add platform driver This can be used for AHCI-compatible interfaces implemented inside System-On-Chip solutions, or AHCI devices connected via localbus. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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