kernel.git/drivers/mmc/core/bus.c, branch linux-5.9.y

mmc: core: Export device/vendor ids from Common CIS for SDIO cards

2020-05-29T10:38:00Z

Device/vendor ids from Common CIS (Card Information Structure) may be different as device/vendor ids from CIS on particular SDIO function. Kernel currently exports only device/vendor ids from SDIO functions and not "main" device/vendor ids from Common CIS. This patch exports "main" device/vendor ids for SDIO and SD combo cards at top level mmc device in sysfs hierarchy. Userspace can use e.g. udev rules to correctly match whole SDIO card based on Common CIS device/vendor id and not only one particular SDIO function. Having this information in userspace also helps developers to debug whole SDIO card as e.g. kernel mmc quirks use device/vendor ids from Common CIS and not from particular SDIO function. Also it allows to write userspace applications which list all connected SDIO cards based on CIS ids. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Link: https://lore.kernel.org/r/20200527110858.17504-2-pali@kernel.org Signed-off-by: Ulf Hansson

mmc: core: Do not export MMC_NAME= and MODALIAS=mmc:block for SDIO cards

2020-05-29T10:38:00Z

SDIO non-combo cards are not handled by mmc_block driver and do not have accessible CID register which is used for MMC_NAME= construction. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Link: https://lore.kernel.org/r/20200527110858.17504-1-pali@kernel.org Signed-off-by: Ulf Hansson

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 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 version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

mmc: core: Remove code no longer needed after the switch to blk-mq

2017-12-11T12:05:58Z

Remove code no longer needed after the switch to blk-mq. Signed-off-by: Adrian Hunter Acked-by: Linus Walleij Tested-by: Linus Walleij Signed-off-by: Ulf Hansson

mmc: core: Do not leave the block driver in a suspended state

2017-11-23T13:09:21Z

The block driver must be resumed if the mmc bus fails to suspend the card. Signed-off-by: Adrian Hunter Reviewed-by: Linus Walleij Cc: stable@vger.kernel.org # v3.19+ Signed-off-by: Ulf Hansson

mmc: mmc: Enable CQE's

2017-10-30T10:45:51Z

Enable or disable CQE when a card is added or removed respectively. Signed-off-by: Adrian Hunter Reviewed-by: Linus Walleij Signed-off-by: Ulf Hansson

mmc: core: Move public functions from host.h to private headers

2017-02-13T12:20:25Z

A significant amount of functions are available through the public mmc host.h header file. Let's slim down this public mmc interface, as to prevent users from abusing it, by moving some of the functions to private mmc host.h header file. This change concentrates on moving the functions into private mmc headers, following changes may continue with additional clean-ups. Signed-off-by: Ulf Hansson Reviewed-by: Linus Walleij Reviewed-by: Shawn Lin

mmc: core: Move public functions from card.h to private headers

2017-02-13T12:20:24Z

A significant amount of functions and other definitions are available through the public mmc card.h header file. Let's slim down this public mmc interface, as to prevent users from abusing it, by moving some of the functions/definitions to private mmc header files. This change concentrates on moving the functions into private mmc headers, following changes may continue with additional clean-ups. Signed-off-by: Ulf Hansson Reviewed-by: Linus Walleij Reviewed-by: Shawn Lin

mmc: core: implement enhanced strobe support

2016-07-25T08:34:05Z

Controllers use data strobe line to latch data from devices under hs400 mode, but not for cmd line. So since emmc 5.1, JEDEC introduces enhanced strobe mode for latching cmd response from emmc devices to host controllers. This new feature is optional, so it depends both on device's cap and host's cap to decide whether to use it or not. Signed-off-by: Shawn Lin Reviewed-by: Jaehoon Chung Tested-by: Douglas Anderson Tested-by: Jaehoon Chung Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson

mmc: enable MMC/SD/SDIO device to suspend/resume asynchronously

2015-12-22T10:32:16Z

Now, PM core supports asynchronous suspend/resume mode for devices during system suspend/resume, and the power state transition of one device may be completed in separate kernel thread. PM core ensures all power state transition dependency between devices. This patch enables MMC/SD/SDIO card and SDIO function devices to suspend/resume asynchronously. This will take advantage of multicore and improve system suspend/resume speed. After applying this patch and enabling all SDIO function's child devices to suspend/resume asynchronously on ASUS T100TA, the system suspend-to-idle time is reduced from 1645ms to 1108ms, and the system resume time is reduced from 940ms to 918ms. Signed-off-by: Zhonghui Fu Signed-off-by: Ulf Hansson