- 15 Dec, 2017 4 commits
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Arvind Yadav authored
platform_get_irq() can fail here and we must check its return value. Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by:
Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org>
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Arvind Yadav authored
The platform_get_irq() function returns negative if an error occurs. zero or positive number on success. platform_get_irq() error checking for zero is not correct. Signed-off-by:
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Arvind Yadav authored
The platform_get_irq() function returns negative if an error occurs. zero or positive number on success. platform_get_irq() error checking for zero is not correct. Signed-off-by:
Kevin Hilman <khilman@baylibre.com> Signed-off-by:
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Sean Wang authored
Add the devicetree binding for MT7623 SoC using MT2701 as the fallback. Cc: devicetree@vger.kernel.org Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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- 11 Dec, 2017 36 commits
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Ulf Hansson authored
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Christoph Fritz authored
To get an usdhc Apacer and some ATP SD cards work reliable, CMD23 needs to be disabled. This has been tested on i.MX6 (sdhci-esdhc) and rk3288 (dw_mmc-rockchip). Without this patch on i.MX6 (sdhci-esdhc): $ dd if=/dev/urandom of=/mnt/test bs=1M count=10 conv=fsync | <mmc0: starting CMD23 arg 00000400 flags 00000015> | mmc0: starting CMD25 arg 00a71f00 flags 000000b5 | mmc0: blksz 512 blocks 1024 flags 00000100 tsac 3000 ms nsac 0 | mmc0: CMD12 arg 00000000 flags 0000049d | sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001 | mmc0: Timeout waiting for hardware interrupt. Without this patch on rk3288 (dw_mmc-rockchip): | mmc1: Card stuck in programming state! mmcblk1 card_busy_detect | dwmmc_rockchip ff0c0000.dwmmc: Busy; trying anyway | mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, | actual 400000HZ div = 0) | mmc1: card never left busy state | mmc1: tried to reset card, got error -110 | blk_update_request: I/O error, dev mmcblk1, sector 139778 | Buffer I/O error on dev mmcblk1p1, logical block 131586, lost async | page write Signed-off-by:Christoph Fritz <chf.fritz@googlemail.com> Cc: <stable@vger.kernel.org> # v4.14+ Signed-off-by:
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Ulf Hansson authored
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Adrian Hunter authored
Intel DSM function 8 has been used to identify transfer modes that are not working on some CHT boards. Add support for that. Signed-off-by:
Carlo Caione <carlo@endlessm.com> Signed-off-by:
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Adrian Hunter authored
Add a ->setup_host() callback so that device-specific changes can be made to the mmc host controller before it is added. Signed-off-by:
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Dan Carpenter authored
mmc_blk_alloc_req() is supposed to return error pointers but there is one path where we forget to set the error code and accidentally return NULL. The callers are not expecting that and will have a NULL pointer dereference. Fixes: 41e3efd0 ("mmc: block: Simplify cleaning up the queue") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
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Adrian Hunter authored
Absence of parentheses is not affecting current code, but ensure macro parameters are wrapped in parentheses. Reported-by:
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Adrian Hunter authored
Remove code no longer needed after the switch to blk-mq. Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Tested-by:
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Adrian Hunter authored
Remove code no longer needed after the switch to blk-mq. Signed-off-by:
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Adrian Hunter authored
Remove config option MMC_MQ_DEFAULT and parameter mmc_use_blk_mq, so that blk-mq must be used always. Signed-off-by:
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yinbo.zhu authored
When system wakes up from sleep on ls1046ardb, the SD operation fails with mmc error messages since ESDHC_TB_EN bit couldn't be cleaned by eSDHC_SYSCTL[RSTA]. It's proper to clean this bit in esdhc_reset() rather than in probe. Signed-off-by:
yinbo.zhu <yinbo.zhu@nxp.com> Acked-by:
Yangbo Lu <yangbo.lu@nxp.com> Acked-by:
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Adrian Hunter authored
mmc_test disables the command queue because none of the tests use the command queue. However the Reset Test will re-enable it, so disable it in that case too. Fixes: 9d4579a8 ("mmc: mmc_test: Disable Command Queue while mmc_test is used") Signed-off-by:
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Adrian Hunter authored
mmc_test now uses mmc_start_request() to test sending commands during "ongoing" asynchronous transfers, i.e. tests: Commands during non-blocking read - use Set Block Count (CMD23) Commands during non-blocking write - use Set Block Count (CMD23) mmc_start_request() was not initializing cmd_completion, but cmd_completion is used by "ongoing" transfers, so move initialization of cmd_completion into making mmc_start_request(). Fixes: cb39f61e ("mmc: core: Export a few functions needed for blkmq support") Signed-off-by:
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Shah Nehal-Bakulchandra authored
This patch supports HS400 for AMD upcoming emmc 5.0 controller.The HS400 and HS200 mode requires hardware work around also. This patch adds the quirks for the same. Signed-off-by:
Nehal-bakulchandra Shah <Nehal-bakulchandra.Shah@amd.com> Acked-by:
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Arnd Bergmann authored
Calling getnstimeofday() can suffer from time jumps and from the y2038 overflow, so it is not appropriate here. Using ktime_get_ts64() solves both problems. Using ktime_get() with ktime_t timestamps would also work, but it seems that we mainly want to print the times as seconds+nanoseconds, so it would require an extra division in the output. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Milan Stevanovic authored
The power register needs to have a valid voltage set even when the power supply is managed by an external regulator. Signed-off-by:
Milan Stevanovic <milan.o.stevanovic@gmail.com> Acked-by:
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Ulrich Hecht authored
Whitelists for internal DMAC implementation. Signed-off-by:
Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com>
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Colin Ian King authored
The function mmc_cqe_issue_type is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: drivers/mmc/core/queue.c:62:21: warning: symbol 'mmc_cqe_issue_type' was not declared. Should it be static? Signed-off-by:
Colin Ian King <colin.king@canonical.com> Acked-by:
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Wu Fengguang authored
drivers/mmc/core/block.c:2106:9-10: WARNING: return of 0/1 in function 'mmc_blk_status_error' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: scripts/coccinelle/misc/boolreturn.cocci Fixes:7eb43d53 ("mmc: block: blk-mq: Stop using legacy recovery") CC: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Acked-by:
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Adrian Hunter authored
The block driver's blk-mq paths do not use mmc_start_areq(). In order to remove mmc_start_areq() entirely, start by removing it from mmc_test. Signed-off-by:
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Adrian Hunter authored
There are only a few things the recovery needs to do. Primarily, it just needs to: Determine the number of bytes transferred Get the card back to transfer state Determine whether to retry There are also a couple of additional features: Reset the card before the last retry Read one sector at a time The legacy code spent much effort analyzing command errors, but commands fail fast, so it is simpler just to give all command errors the same number of retries. Signed-off-by:
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Adrian Hunter authored
Set a 10 second timeout for polling write request busy state. Note, mmc core is setting a 3 second timeout for SD cards, and SDHCI has long had a 10 second software timer to timeout the whole request, so 10 seconds should be ample. Signed-off-by:
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Adrian Hunter authored
According to the specification, total access time is derived from both TAAC and NSAC, which means the timeout should add both timeout_ns and timeout_clks. Host drivers do that, so make the block driver do that too. Signed-off-by:
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Adrian Hunter authored
The card is required to return to transfer state. Since that is the state required to start another transfer, check for that state instead of programming state. Signed-off-by:
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Adrian Hunter authored
Pedantically, ensure the status is checked for the last time after the full timeout has passed. Signed-off-by:
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Adrian Hunter authored
Check error bits and save the exception bit when polling card busy. Signed-off-by:
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Adrian Hunter authored
Make card_busy_detect() accumulate all response error bits. Later patches will make use of this. Signed-off-by:
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Adrian Hunter authored
Recovery is simpler to understand if it is only used for errors. Create a separate function for card polling. Signed-off-by:
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Adrian Hunter authored
For blk-mq, add support for completing requests directly in the ->done callback. That means that error handling and urgent background operations must be handled by recovery_work in that case. Signed-off-by:
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Adrian Hunter authored
Add CQHCI initialization and implement CQHCI operations for Intel GLK. Signed-off-by:
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Venkat Gopalakrishnan authored
This patch adds CMDQ support for command-queue compatible hosts. Command queue is added in eMMC-5.1 specification. This enables the controller to process upto 32 requests at a time. Adrian Hunter contributed renaming to cqhci, recovery, suspend and resume, cqhci_off, cqhci_wait_for_idle, and external timeout handling. Signed-off-by:
Asutosh Das <asutoshd@codeaurora.org> Signed-off-by:
Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by:
Konstantin Dorfman <kdorfman@codeaurora.org> Signed-off-by:
Venkat Gopalakrishnan <venkatg@codeaurora.org> Signed-off-by:
Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by:
Ritesh Harjani <riteshh@codeaurora.org> Signed-off-by:
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Adrian Hunter authored
Add CQE support to the block driver, including: - optionally using DCMD for flush requests - "manually" issuing discard requests - issuing read / write requests to the CQE - supporting block-layer timeouts - handling recovery - supporting re-tuning CQE offers 25% - 50% better random multi-threaded I/O. There is a slight (e.g. 2%) drop in sequential read speed but no observable change to sequential write. CQE automatically sends the commands to complete requests. However it only supports reads / writes and so-called "direct commands" (DCMD). Furthermore DCMD is limited to one command at a time, but discards require 3 commands. That makes issuing discards through CQE very awkward, but some CQE's don't support DCMD anyway. So for discards, the existing non-CQE approach is taken, where the mmc core code issues the 3 commands one at a time i.e. mmc_erase(). Where DCMD is used, is for issuing flushes. Signed-off-by: -
Adrian Hunter authored
Define and use a blk-mq queue. Discards and flushes are processed synchronously, but reads and writes asynchronously. In order to support slow DMA unmapping, DMA unmapping is not done until after the next request is started. That means the request is not completed until then. If there is no next request then the completion is done by queued work. Signed-off-by:
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Adrian Hunter authored
Until mmc has blk-mq support fully implemented and tested, add a parameter use_blk_mq, set to true if config option MMC_MQ_DEFAULT is selected, which it is by default. Signed-off-by:
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Adrian Hunter authored
Add error-handling comments to explain what would also be done for blk-mq if it used the legacy error-handling. Signed-off-by:
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Adrian Hunter authored
Make mmc_pre_req() and mmc_post_req() available to the card drivers. Later patches will make use of this. Signed-off-by:
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