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2015-06-25Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull asm/scatterlist.h removal from Jens Axboe: "We don't have any specific arch scatterlist anymore, since parisc finally switched over. Kill the include" * 'for-4.2/sg' of git://git.kernel.dk/linux-block: remove scatterlist.h generation from arch Kbuild files remove <asm/scatterlist.h>
2015-06-18mmc: queue: prevent soft lockups on PREEMPT=nRabin Vincent1-0/+1
On systems with CONFIG_PREEMPT=n, under certain circumstances, mmcqd can continuously process requests for several seconds without blocking, triggering the soft lockup watchdog. For example, this can happen if mmcqd runs on the CPU which services the controller's interrupt, and a process on a different CPU continuously writes to the MMC block device. NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [mmcqd/0:664] CPU: 0 PID: 664 Comm: mmcqd/0 Not tainted 4.1.0-rc7+ #4 PC is at _raw_spin_unlock_irqrestore+0x24/0x28 LR is at mmc_start_request+0x104/0x134 ... [<805112a8>] (_raw_spin_unlock_irqrestore) from [<803db664>] (mmc_start_request+0x104/0x134) [<803db664>] (mmc_start_request) from [<803dc008>] (mmc_start_req+0x274/0x394) [<803dc008>] (mmc_start_req) from [<803eb2c4>] (mmc_blk_issue_rw_rq+0xd0/0xb98) [<803eb2c4>] (mmc_blk_issue_rw_rq) from [<803ebe8c>] (mmc_blk_issue_rq+0x100/0x470) [<803ebe8c>] (mmc_blk_issue_rq) from [<803ecab8>] (mmc_queue_thread+0xd0/0x170) [<803ecab8>] (mmc_queue_thread) from [<8003fd14>] (kthread+0xe0/0xfc) [<8003fd14>] (kthread) from [<8000f768>] (ret_from_fork+0x14/0x2c) Fix it by adding a cond_resched() in the request handling loop so that other processes get a chance to run. Signed-off-by: Rabin Vincent <rabin.vincent@axis.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-18mmc: mediatek: Add PM support for MMC driverChaotian Jing1-3/+86
Add PM support for Mediatek MMC driver Save/restore registers when PM Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-18mmc: mediatek: Add Mediatek MMC driverChaotian Jing3-0/+1388
Add Mediatek MMC driver code Support eMMC/SD/SDIO Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-16mmc: card: Fixup request missing in mmc_blk_issue_rw_rqDing Wang1-3/+5
The current handler of MMC_BLK_CMD_ERR in mmc_blk_issue_rw_rq function may cause new coming request permanent missing when the ongoing request (previoulsy started) complete end. The problem scenario is as follows: (1) Request A is ongoing; (2) Request B arrived, and finally mmc_blk_issue_rw_rq() is called; (3) Request A encounters the MMC_BLK_CMD_ERR error; (4) In the error handling of MMC_BLK_CMD_ERR, suppose mmc_blk_cmd_err() end request A completed and return zero. Continue the error handling, suppose mmc_blk_reset() reset device success; (5) Continue the execution, while loop completed because variable ret is zero now; (6) Finally, mmc_blk_issue_rw_rq() return without processing request B. The process related to the missing request may wait that IO request complete forever, possibly crashing the application or hanging the system. Fix this issue by starting new request when reset success. Signed-off-by: Ding Wang <justin.wang@spreadtrum.com> Fixes: 67716327eec7 ("mmc: block: add eMMC hardware reset support") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-16mmc: sdhci: fix low memory corruptionJiri Slaby1-1/+1
When dma mapping (dma_map_sg) fails in sdhci_pre_dma_transfer, -EINVAL is returned. There are 3 callers of sdhci_pre_dma_transfer: * sdhci_pre_req and sdhci_adma_table_pre: handle negative return * sdhci_prepare_data: handles 0 (error) and "else" (good) only sdhci_prepare_data is therefore broken. When it receives -EINVAL from sdhci_pre_dma_transfer, it assumes 1 sg mapping was mapped. Later, this non-existent mapping with address 0 is kmap'ped and written to: Corrupted low memory at ffff880000001000 (1000 phys) = 22b7d67df2f6d1cf Corrupted low memory at ffff880000001008 (1008 phys) = 63848a5216b7dd95 Corrupted low memory at ffff880000001010 (1010 phys) = 330eb7ddef39e427 Corrupted low memory at ffff880000001018 (1018 phys) = 8017ac7295039bda Corrupted low memory at ffff880000001020 (1020 phys) = 8ce039eac119074f ... So teach sdhci_prepare_data to understand negative return values from sdhci_pre_dma_transfer and disable DMA in that case, as well as for zero. It was introduced in 348487cb28e66b032bae1b38424d81bf5b444408 (mmc: sdhci: use pipeline mmc requests to improve performance). The commit seems to be suspicious also by assigning host->sg_count both in sdhci_pre_dma_transfer and sdhci_adma_table_pre. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: stable@vger.kernel.org # 4.0+ Fixes: 348487cb28e6 Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Haibo Chen <haibo.chen@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-16mmc: sdhci-pci: Change AMD SDHCI quirk application scopeVincent Wan1-1/+24
Change this quirk to apply to AMD Carrizo platform. Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com> Tested-by: Nath, Arindam <Arindam.Nath@amd.com> Tested-by: Ramesh, Ramya <Ramya.Ramesh@amd.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-15mmc: queue: use swap() in mmc_queue_thread()Fabian Frederick1-4/+1
Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-12mmc: dw_mmc: insmod followed by rmmod will hung for eMMCPrabu Thangamuthu1-3/+3
Remove module of dw_mmc driver will hung for eMMC devices if we follow the steps which are listed below, insmod dw_mmc.ko insmod dw_mmc-pci.ko rmmod dw_mmc-pci.ko The root cause for this issue is, dw_mci_remove() will disable all the interrupts by programming 0x0 to INTMASK register then it will call dw_mci_cleanup_slot(). But dw_mci_cleanup_slot() is issuing CMD6 to disable the eMMC boot partition and it is waiting for Command Complete interrupt. Since INTMASK was already cleared by dw_mci_remove(), Command Complete interrupt is not reaching the system. This leads to process hung. Signed-off-by: Prabu Thangamuthu <prabu.t@synopsys.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-08mmc: sdhci: Restore behavior while creating OCR maskUlf Hansson1-4/+5
Commit 3a48edc4bd68 ("mmc: sdhci: Use mmc core regulator infrastucture") changed the behavior for how to assign the ocr_avail mask for the mmc host. More precisely it started to mask the bits instead of assigning them. Restore the behavior, but also make it clear that an OCR mask created from an external regulator overrides the other ones. The OCR mask is determined by one of the following with this priority: 1. Supported ranges of external regulator if one supplies VDD 2. Host OCR mask if set by the driver (based on DT properties) 3. The capabilities reported by the controller itself Fixes: 3a48edc4bd68 ("mmc: sdhci: Use mmc core regulator infrastucture") Cc: Tim Kryger <tim.kryger@gmail.com> Reported-by: Yangbo Lu <yangbo.lu@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@gmail.com>
2015-06-04mmc: sdhci-pxav3: fix device wakeup initializationJisheng Zhang1-5/+1
MMC_PM_KEEP_POWER doesn't imply MMC_PM_WAKE_SDIO_IRQ, we should only enable device wake up when MMC_PM_WAKE_SDIO_IRQ is set. And "pm_flags" is the requested pm features, we should not set it in the host driver. At the same time, device wakeup is disabled by default, so there's no need to disable device wakeup explicitly. This patch fixes the warning as following: [ 64.616651] ------------[ cut here ]------------ [ 64.616665] WARNING: CPU: 0 PID: 79 at linux/kernel/irq/manage.c:603 irq_set_irq_wake+0xf0/0x11c() [ 64.616667] Unbalanced IRQ 87 wake disable Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-04mmc: core: Attach PM domain prior probing of SDIO func driverUlf Hansson1-4/+8
Other subsystem buses attach PM domains during probe, but prior calling the driver's ->probe() method. During the removal phase, detaching the PM domain will be done after invoking the driver's ->remove() callback. Convert the SDIO bus to follow this behavior and add error handling. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-04mmc: core: Remove redundant ->power_restore() callback for SDUlf Hansson1-13/+1
Since the ->reset() callback is implemented for SD, the ->power_restore() callback has become redundant, let's remove it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-04mmc: core: Remove redundant ->power_restore() callback for MMCUlf Hansson1-13/+1
Since the ->reset() callback is implemented for MMC, the ->power_restore() callback has become redundant, let's remove it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-bcm2835: Actually enable the clockEric Anholt1-1/+8
We're currently using a fixed frequency clock specified in the DT, so enabling is a no-op. However, the RPi firmware-based clocks driver can actually disable unused clocks, so when switching to use it we ended up losing our MMC clock once all devices were probed. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-bcm2835: Clean up platform allocations if sdhci init fails.Eric Anholt1-1/+4
Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-of-esdhc: enable interrupt mode to detect cardYangbo Lu1-0/+7
Enable interrupt mode to detect card instead of polling mode for P1020/P4080/P5020/P5040/T1040 by removing the quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION. This could improve data transferring performance and avoid the call trace caused by polling card status sometime. Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-esdhc-imx: add quirk SDHCI_QUIRK2_BROKEN_HS200 for imx6qdlDong Aisheng1-2/+8
The iMX6Q/DL can not support HS200 mode while iMX6SL and iMX6SX can, so introduce a new flag to distinguish them. Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-esdhc-imx: add imx6sx supportDong Aisheng1-0/+6
The imx6sx usdhc is derived from imx6sl, the difference is minor. imx6sx have the errata ESDHC_FLAG_ERR004536 fixed. So introduce a new compatible string for imx6sx to distinguish them. Signed-off-by: Dong Aisheng <b29396@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-esdhc-imx: add ADMA Length Mismatch errata fixDong Aisheng1-1/+17
The uSDHC has an ADMA Length Mismatch errata ERR004536 which may cause ADMA work abnormally. The errata has already been fixed for i.MX6Q TO1.2 and i.MX6DL TO1.1 by enable the bit 7 in 0x6c register. Unfortunately this fix is not included in i.MX6SL. So we disable ADMA for i.MX6SL and use SDMA instead. Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-esdhc-imx: usdhc does not have missing card interrupt issueDong Aisheng1-1/+1
The usdhc does not have missing card interrupt issue, so don't execute workaround for usdhc. Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-esdhc-imx: merge the same register check into one placeDong Aisheng1-7/+5
In esdhc_writel_le() function, there's duplicated checking of the same register as follows: "if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE))". Merge them into one and remove the duplicated one. Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-pci: Enable HS400 for some Intel host controllersAdrian Hunter1-0/+1
Enable detection of HS400 support via capability bit-63 for some Intel host controllers. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-pci: Add support for drive strength selection for SPTAdrian Hunter3-0/+90
Implement the select_drive_strength callback to provide drive strength selection for Intel SPT. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci: Add a callback to select drive strengthAdrian Hunter2-0/+17
Add a callbak to let host drivers select drive strength. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: mmc: Add driver strength selectionAdrian Hunter1-7/+38
Add the ability to set eMMC driver strength for HS200 and HS400. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: mmc: Read card's valid driver strength maskAdrian Hunter1-0/+1
In preparation for supporing drive strength selection for eMMC, read the card's valid driver strengths. Note that though the SD spec uses the term "drive strength", the JEDEC eMMC spec uses the term "driver strength". Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Record card drive strengthAdrian Hunter2-0/+6
In preparation for adding drive strength support for eMMC, add drive_strength to struct mmc_card to record the card drive strength for UHS-I modes and HS200 / HS400. For eMMC this will be needed when switching between HS200 and HS400. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Factor out common code in drive strength selectionAdrian Hunter4-46/+46
Make a new function out of common code used for drive strength selection. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Add 'card' to drive strength selection callbackAdrian Hunter2-2/+2
In preparation for supporting also eMMC drive strength, add the 'card' as a parameter so that the callback can distinguish different types of cards if necessary. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Simplify card drive strength maskAdrian Hunter2-20/+4
Card drive strength selection uses a callback to which a mask of supported drive strengths is passed. Currently, the bits are checked against the values in the SD specifications. That is not necessary because the callback will anyway match the mask against a valid value. Simplify by taking the mask as is but still ensuring that the default mandatory value (type B) is always supported. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Allow card drive strength to be different to hostAdrian Hunter2-45/+31
Initialization of UHS-I modes for SD and SDIO cards employs a callback to allow the host driver to choose a drive strength value. Currently that assumes the card drive strength and host driver type must be the same value. Change to let the callback make that decision and return both the card drive strength and host driver type. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Reset driver type to defaultAdrian Hunter1-0/+1
IO state variable drv_type could be set during card initialization. Consequently, it must be reset to the default value when setting the initial state. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sh_mmcif: calculate best clock with parent clockKuninori Morimoto1-9/+75
MMCIF IP on R-Car series has parent clock which can be set several rate, and it was not implemented on old SH-Mobile series (= SH-Mobile series parent clock was fixed rate) R-Car series MMCIF can use more high speed access if it setups parent clock. This patch adds parent clock setup method. It will be used if DT has "max-frequency", and then, this driver assumes it is booted on R-Car Gen2 or later SoC. Because SH-Mobile series (which doesn't boot from DT) and R-Car series (which boots from DT) have different divider. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Ulf: Silence compiler warning]
2015-06-01mmc: sh_mmcif: use sh_mmcif_xxx prefix for all functionsKuninori Morimoto1-13/+13
Current sh_mmcif driver is using sh_mmcif_xxx and mmcif_xxx for functions. This patch used sh_mmcif_xxx for all functions. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sh_mmcif: add sh_mmcif_host_to_dev() macro and use it.Kuninori Morimoto1-43/+71
Current sh_mmcif driver is directly using &host->pd->dev in all place. It is not big problem, but it is unreadable, and it can be cause of future bug. This patch adds new sh_mmcif_host_to_dev() and use it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci: fix driver type B and D handling in sdhci_do_set_ios()Petri Gynther1-0/+9
sdhci_do_set_ios() doesn't currently program SDHCI_HOST_CONTROL2 register correctly when host->preset_enabled == false. Add code to handle the missing cases MMC_SET_DRIVER_TYPE_B and MMC_SET_DRIVER_TYPE_D. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: mmc-test: use swap() in mmc_test_nonblock_transfer()Fabian Frederick1-3/+1
Use kernel.h macro definition. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: core: Increase delay for voltage to stabilize from 3.3V to 1.8VDoug Anderson1-2/+2
Since the regulator used for the SDMMC IO voltage is not expected to draw a lot of current, most systems will probably use an inexpensive LDO for it. LDO regulators apparently have the feature that they don't actively drive the voltage down--they wait for other components in the system to drag the voltage down. Thus they will transition faster under heavy loads and slower under light loads. During an SDMMC voltage change from 3.3V to 1.8V, we are almost certainly under a light load. To be specific: * The regulator is hooked through pulls to CMD0-3 and DAT. Probably the CMD pulls are something like 47K and the DAT is something like 10K. * The card is supposed to be driving DAT0-3 low during voltage change which will draw _some_ current, but not a lot. * The regulator is also provided to the SDMMC host controller, but the SDMMC host controller is in open drain mode during the voltage change and so shouldn't be drawing much current. In order to keep the SDMMC host working properly (or for noise reasons), there might also be a capacitor attached to the SDMMC IO regulator. This also will have the effect of slowing down transitions of the regulator, especially under light loads. From experimental evidence, we've seen the voltage change fail if the card doesn't detect that the voltage fell to less than about 2.3V when we turn on the clock. On one device (that admittedly had a 47K CMD pullup instead of a 10K CMD pullup) we saw that the voltage was just about 2.3V after 5ms and thus the voltage change would sometimes fail. Doubling the delay gave margin and made the voltage change work 100% of the time, despite the slightly weaker CMD pull. At the moment submitting this as an RFC patch since my problem _could_ be fixed by increasing the pull strength (or using a smaller capacitor). However being a little bit more lenient to strange hardware could also be a good thing. Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sdhci-st: Fix modalias to make module auto-loading workZhangfei Gao1-1/+1
Make the modalias match driver name, this is required to make module auto-loading work. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> CC: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: dw_mmc: rockchip: Fix modalias to make module auto-loading workZhangfei Gao1-1/+1
Make the modalias match driver name, this is required to make module auto-loading work. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> CC: Doug Anderson <dianders@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: dw_mmc: exynos: Fix modalias to make module auto-loading workZhangfei Gao1-1/+1
Make the modalias match driver name, this is required to make module auto-loading work. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: dw_mmc: k3: Fix modalias to make module auto-loading workZhangfei Gao1-1/+1
Make the modalias match driver name, this is required to make module auto-loading work. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: dw_mmc: Use core to handle absent write protect lineLars-Peter Clausen2-39/+17
Use the new MMC_CAP2_NO_WRITE_PROTECT to let the core handle the case where no write protect line is present instead of having custom driver code to handle it. dw_mci_of_get_slot_quirks() is slightly refactored to directly modify the mmc_host capabilities instead of returning a quirk mask. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: dw_mmc: k3: support hi6220Zhangfei Gao1-2/+101
Support hi6220, tested on hikey board emmc: support hs sd: support hs, sdr12, sdr25 Signed-off-by: Jorge A. Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Signed-off-by: Dan Yuan <yuandan@hisilicon.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: dw_mmc: add switch_voltageZhangfei Gao2-0/+6
switch_voltage is required on some platform since special register accessing Signed-off-by: Jorge A. Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Signed-off-by: Dan Yuan <yuandan@hisilicon.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: cast unsigned int to typeof(sector_t) to avoid unexpected errorKuninori Morimoto1-1/+2
card->csd.capacity is defined as "unsigned int", and sector_t is defined as "u64" or "unsigned long" (depends on CONFIG_LBDAF). Thus, sector_t data might have strange data (see below). This patch cast it to typeof(sector_t) Special thanks to coverity <http://www.coverity.com> ex) if sector_t was u64 unsigned int data; sector_t sector; data = 0x800000; sector = (data << 8); // 0xffffffff80000000 sector = (((typeof(sector_t))data) << 8); // 0x80000000 or data = 0x80000000; sector = (data << 8); // 0x0 sector = (((typeof(sector_t))data) << 8); // 0x8000000000 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: cast u8 to unsigned long long to avoid unexpected errorKuninori Morimoto1-2/+4
card->ext_csd.enhanced_area_offset is defined as "unsigned long long", and, ext_csd[] is defined as u8. unsigned long long data might have strange data if first bit of ext_csd[] was 1. this patch cast it to (unsigned long long) Special thanks to coverity <http://www.coverity.com> ex) u8 data8; u64 data64; data8 = 0x80; data64 = (data8 << 24); // 0xffffffff80000000 data64 = (((unsigned long long)data8) << 24); // 0x80000000; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: host: sdhci: Use BUG_ON()Fabio Estevam1-4/+2
Use BUG_ON() instead of an 'if' condition followed by BUG(). The semantic patch that makes this change is available in scripts/coccinelle/misc/bugon.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: host: mxcmmc: Simplify a trivial if-return sequenceFabio Estevam1-5/+1
Simplify a trivial if-return sequence. Possibly combine with a preceding function call. The semantic patch that makes this change is available in scripts/coccinelle/misc/simple_return.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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