- 03 10月, 2012 1 次提交
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由 Jaehoon Chung 提交于
Enable eMMC background operations (BKOPS) feature. If URGENT_BKOPS is set after a response, note that BKOPS are required. Immediately run BKOPS if required. Read/write operations should be requested during BKOPS(LEVEL-1), then issue HPI to interrupt the ongoing BKOPS and service the foreground operation. (This patch only controls the LEVEL2/3.) When repeating the writing 1GB data, at a certain time, performance is decreased. At that time, card triggers the Level-3 or Level-2. After running bkops, performance is recovered. Future considerations: * Check BKOPS_LEVEL=1 and start BKOPS in a preventive manner. * Interrupt ongoing BKOPS before powering off the card. * How do we get BKOPS_STATUS value (periodically send ext_csd command)? * If using periodic bkops, also consider runtime_pm control. Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKonstantin Dorfman <kdorfman@codeaurora.org> Reviewed-by: NMaya Erez <merez@codeaurora.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 19 9月, 2012 5 次提交
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由 Guennadi Liakhovetski 提交于
Previously to this patch, an SDHCI platform that uses a GPIO for card detection instead of the internal SDHCI_CARD_PRESENT bit on the presence register would fail to detect a new card. Some drivers worked around this in various ways: esdhc-imx defines an IO accessor to fake the presence bit being true, s3c turns on polling (which stops the SDHCI driver from checking the bit) after a card's inserted. But none of this should be necessary; the real fix is to check whether we're using a GPIO and avoid relying on the presence bit if so, as this patch implements. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Matt Porter 提交于
Removes use of the DaVinci EDMA private DMA API and replaces it with use of the DMA engine API. Signed-off-by: NMatt Porter <mporter@ti.com> Tested-by: NKoen Kooi <koen@dominion.thruhere.net> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Thierry Reding 提交于
Power management callbacks defined by SIMPLE_DEV_PM_OPS are only used if the PM_SLEEP Kconfig symbol has been defined. If not, the compiler will complain about them being unused. However, since the callback for this driver doesn't do anything it can just as well be dropped. Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Kyungsik Lee 提交于
It is expected that Extended CSD register (the size of this register is larger than CID/CSD) will be referenced more frequently as more fields have been added to Extended CSD and it seems that it is not a good option to double the memory used. This patch is intended to avoid the use of bounce buffer for reading Extended CSD register in mmc_send_cxd_data(). It will provide a better performance gain by removing memcpy() overhead for a half KiB and a redundant bounce buffer allocated repeatedly at the cost of providing DMA-capable buffer from upper caller (but on-stack buffer is allowed with no performance gain). Signed-off-by: NKyungsik Lee <kyungsik.lee@lge.com> Reviewed-by: NVenkatraman S <svenkatr@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Chris Ball 提交于
Tested on OLPC XO-4/MMP3, where the card detection pin for one of the controllers is a sideband GPIO. The third cell in the cd-gpios property controls whether the GPIO is active high/active low. (Also, pass host_caps2 through from platdata to the mmc host.) Acked-by: NHaojian Zhuang <haojian.zhuang@gmail.com> [kliu5@marvell.com: Compile fix] Signed-off-by: NChris Ball <cjb@laptop.org>
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- 11 9月, 2012 1 次提交
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由 Chris Ball 提交于
mmc_gpio_request_ro() doesn't store the requested gpio in ctx->ro_gpio. As a result, subsequent calls to mmc_gpio_get_ro() will always fail with -ENOSYS because the gpio number isn't available to that function. Cc: stable <stable@vger.kernel.org> Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 05 9月, 2012 33 次提交
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由 Sachin Kamat 提交于
module_pci_driver makes the code simpler by eliminating module_init and module_exit calls. Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Acked-by: NHarald Welte <laforge@gnumonks.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sachin Kamat 提交于
module_pci_driver makes the code simpler by eliminating module_init and module_exit calls. Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sachin Kamat 提交于
module_pci_driver makes the code simpler by eliminating module_init and module_exit calls. Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sachin Kamat 提交于
module_spi_driver makes the code simpler by eliminating module_init and module_exit calls. Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Jingoo Han 提交于
This patch fixes the checkpatch error and warnings listed below: ERROR: return is not a function, parentheses are not required WARNING: Prefer pr_err(... to printk(KERN_ERR, ... WARNING: quoted string split across lines WARNING: line over 80 characters WARNING: braces {} are not necessary for single statement blocks Signed-off-by: NJingoo Han <jg1.han@samsung.com> Acked-by: NJaehoon Chung <jh80.chung@samsung.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Johan Rudholm 提交于
If MMC_CAP_NONREMOVABLE is set, only issue a detect job on init. Signed-off-by: NJohan Rudholm <johan.rudholm@stericsson.com> Acked-by: NUlf Hansson <ulf.hansson@linaro.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Jaehoon Chung 提交于
Fixed the below message. WARNING: drivers/mmc/host/built-in.o(.text+0x5ee8): Section mismatch in reference from the function dw_mci_probe() to the function .init.text:dw_mci_init_slot() The function dw_mci_probe() references the function __init dw_mci_init_slot(). This is often because dw_mci_probe lacks a __init annotation or the annotation of dw_mci_init_slot is wrong Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NWill Newton <will.newton@imgtec.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Joseph Lo 提交于
When compiling a kernel that supports only Tegra30 and not Tegra20, the SDHCI driver will fail to compile since the of_match_device() failure fallback code unconditinally references soc_data_tegra20, which is only compiled in when Tegra20 support is enabled. In Kernel 3.7, both Tegra20 and Tegra30 will only support booting using device tree, Hence, there is never a need to fall back to using soc_data_tegra20 if of_mach_device() fails. Instead, make this case an error. This removes the reference to soc_data_tegra20, and hence solves the compile failure. Signed-off-by: NJoseph Lo <josephl@nvidia.com> Tested-by: NStephen Warren <swarren@wwwdotorg.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Chris Ball 提交于
Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
I can continue to look after this driver. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
Consolidate the duplicated code around the handling of CMD_TIMEOUT, CMD_CRC, DATA_TIMEOUT, DATA_CRC and CARD_ERR handling into a single function. This generally shrinks code bloat, but is also required for implementing software based guard timers. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
Flushing spurious IRQs from HSMMC IP is done twice in omap_hsmmc_irq and omap_hsmmc_do_irq. Consolidate them to one location. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
SYSCONFIG register of HSMMC IP is managed by the omap hwmod abstraction layer. Resetting the IP and configuring the correct SYSCONFIG mode is centrally managed by hwmod. Remove code which manipulates IP reset and SYSCONFIG directly in the driver. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
Some straight forward cleanup of unnecessary #include's and host variables. Some of the verbose and redundant debug messages are converted to use dev_vdbg. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
The function mmc_omap_report_irq uses raw printks and the actual output was disabled by a static variable. Make the function use dev_vdbg macro and use it under the standard CONFIG_MMC_DEBUG flag. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
Get rid of some unnecessary includes in the driver and a few unused variables. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
ext_csd exported through debugfs is printed in reverse order (from byte 511 to 0), which causes confusion. Fix the for loop to print ext_csd in natural order. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Venkatraman S 提交于
HPI can be issued only in programming state to bring the card to transfer state. If the card is already in transfer state, doing a HPI is redundant. Fix this by adding transfer state to the list of exceptions to doing HPI and return without error. Signed-off-by: NVenkatraman S <svenkatr@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sonic Zhang 提交于
Without reset, SD controller may stay in disable mode, SD card can't be detected when resume from power saving mode. Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sonic Zhang 提交于
mmc core suspend and resume functions had already called sdh_set_ios with proper flags. Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NBob Liu <lliubbo@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sonic Zhang 提交于
In BF60x RSI controller: 1) MMR read/write width differs. 2) PWR and CTL MMRs are merged to together. 3) ROD and PD_DAT3 bit masks are obsolete. 4) New RSI block size MMR is defined. 5) The definition of DMA descriptor set size is changed. 6) set_ios should powers up controller in 2 steps. In addition, this patch cleans up the spin locks. Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sonic Zhang 提交于
bf518 RSI dma doesn't work in array mode. Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sonic Zhang 提交于
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 NeilBrown 提交于
1/ If regulator_get fails, return an error. This is important if it failed with EPROBE_DEFER, as the probe needs to be deferred. 2/ Don't set .set_power until the regulator has been found, or the deferred probe will not bother calling omap_hsmmc_reg_get(). Signed-off-by: NNeilBrown <neilb@suse.de> Acked-by: NRajendra Nayak <rnayak@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Julia Lawall 提交于
Add missing usb_free_urb on failure path after usb_alloc_urb. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @km exists@ local idexpression e; expression e1,e2,e3; type T,T1; identifier f; @@ * e = usb_alloc_urb(...) ... when any when != e = e1 when != e1 = (T)e when != e1(...,(T)e,...) when != &e->f if(...) { ... when != e2(...,(T1)e,...) when != e3 = e when forall ( return <+...e...+>; | * return ...; ) } // </smpl> Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Sebastian Hesselbarth 提交于
This patch adds device tree support and binding documentation for sdhci-dove. Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@googlemail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Chao Xie 提交于
Prepare the clock before enabling it. Signed-off-by: NChao Xie <xiechao.mail@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Ludovic Desroches 提交于
Signed-off-by: NLudovic Desroches <ludovic.desroches@atmel.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Philip Rakity 提交于
The vmmc regulator should not rely on the platform code to enable it. Expliciitly enable and disable the regulator inside the driver. Signed-off-by: NPhilip Rakity <prakity@marvell.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Philip Rakity 提交于
On some systems the host controller does not support vccq signaling. This is supplied by a dedicated regulator (vqmmc). Add support for this regulator. Signed-off-by: NPhilip Rakity <prakity@marvell.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Jerry Huang 提交于
The register of eSDHC Host Controller Capabilities is not compatible with standard SDHC register, and eSDHC cannot support End Attribute in NOP ADMA descriptor. With this patch eSDHC can works in ADMA mode and performance can be improved. Signed-off-by: NJerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: NPan Jiafei <Jiafei.Pan@freescale.com> Signed-off-by: NJason Jin <Jason.jin@freescale.com> Acked-by: NAnton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Daniel Mack 提交于
Signed-off-by: NDaniel Mack <zonque@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Paul Walmsley 提交于
After commit 26b88520 ("mmc: omap_hsmmc: remove private DMA API implementation"), the Nokia N800 here stopped booting: [ 2.086181] Waiting for root device /dev/mmcblk0p1... [ 2.324066] Unhandled fault: imprecise external abort (0x406) at 0x00000000 [ 2.331451] Internal error: : 406 [#1] ARM [ 2.335784] Modules linked in: [ 2.339050] CPU: 0 Not tainted (3.6.0-rc3 #60) [ 2.344146] PC is at default_idle+0x28/0x30 [ 2.348602] LR is at trace_hardirqs_on_caller+0x15c/0x1b0 ... This turned out to be due to memory corruption caused by long-broken PIO code in drivers/mmc/host/omap.c. (Previously, this driver had been using DMA; but the above commit caused the MMC driver to fall back to PIO mode with an unmodified Kconfig.) The PIO code, added with the rest of the driver in commit 730c9b7e ("[MMC] Add OMAP MMC host driver"), confused bytes with 16-bit words. This bug caused memory located after the PIO transfer buffer to be corrupted with transfers larger than 32 bytes. The driver also did not increment the buffer pointer after the transfer occurred. This bug resulted in data corruption during any transfer larger than 64 bytes. Signed-off-by: NPaul Walmsley <paul@pwsan.com> Reviewed-by: NFelipe Balbi <balbi@ti.com> Tested-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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