summaryrefslogtreecommitdiff
path: root/drivers/mmc/host
AgeCommit message (Collapse)Author
2010-12-19ARM: 6526/1: mmci: corrected calculation of clock div for ux500Linus Walleij
The Ux500 variant of this block has a different divider. The value used right now is too big and which means a loss in performance. This fix corrects it. Also expand the math comments a bit so it's clear what's happening. Further the Ux500 variant does not like if we use the BYPASS bit, instead we are supposed to set the clock divider to zero. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-25mmc: sh_mmcif: add DMA supportGuennadi Liakhovetski
The MMCIF controller on sh-mobile platforms can use the DMA controller for data transfers. Interface to the SH dmaengine driver to enable DMA. We also have to lower the maximum number of segments to match with the number od DMA descriptors on SuperH, this doesn't significantly affect driver's PIO performance. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-25mmc: sh_mmcif: cosmetic clean upGuennadi Liakhovetski
Replace pr_* with respective dev_*, sort headers alphabetically, remove an unused struct member, superfluous variable initialisations and type-casts. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-25mmc: sh_mmcif: switch to completion, fix flagsGuennadi Liakhovetski
In sh_mmcif.c an event is used as a completion, switch over. When a wait_for_completion*_timeout() returns, it suffices to check the remaining time, setting an additional flag before waking up the waiting task only reduces the race window, but does not eliminate it. This patch switches the driver to use a completion to signal an interrupt, the only case, when an interrupt should not wake up the waiter, is when an automatic CMD12 completes. Also fix MODULE_ALIAS. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-22mmc: sdhci: 8-bit bus width changesPhilip Rakity
We now: * check for a v3 controller before setting 8-bit bus width * offer a callback for platform code to switch to 8-bit mode, which allows non-v3 controllers to support it * rely on mmc->caps |= MMC_CAP_8_BIT_DATA; in platform code to specify that the board designers have indeed brought out all the pins for 8-bit to the slot. We were previously relying only on whether the *controller* supported 8-bit, which doesn't tell us anything about the pin configuration in the board design. This fixes the MMC card regression reported by Maxim Levitsky here: http://thread.gmane.org/gmane.linux.kernel.mmc/4336 by no longer assuming that 8-bit works by default. Signed-off-by: Philip Rakity <prakity@marvell.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-17mmc: omap4: hsmmc: Fix improper card detection while bootingkishore kadiyala
While booting OMAP4 ES2.0 boards, cards on MMC1 and MMC2 controllers are not getting detected sometimes. During reset of command/data line, wrong pointer to base address was passed while read operation to SYSCTL register, thus impacting the updated reset logic. Passing the correct base address fixes the issue. Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-10ARM: 6438/2: mmci: add SDIO support for ST VariantsLinus Walleij
This adds some minor variant data and trickery to enable SDIO on the ST Micro variants of MMCI/PL180. Signed-off-by: Marcin Mielczarczyk <marcin.mielczarczyk@tieto.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-10ARM: 6399/3: mmci: handle broken MCI_DATABLOCKEND hardwareLinus Walleij
On the U300 the MCI_DATAEND and MCI_DATABLOCKEND IRQs can arrive out-of-order. Replace an ugly #ifdef hack with a proper runtime solution which models what is really happening. In the U300 DMA mode and on all Ux500 models, the MCI_DATABLOCKEND flag isn't properly cleared in hardware following and ACK leading to all kind of weird behaviour when the flag is still up in subsequent interrupts, so we add two flags indicating the error and handle this runtime. Cc: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-10ARM: 6311/2: mmci: work with only one irqLinus Walleij
The DBx500 variants have only one IRQ line hooked up. Allow these (and any other implementations which choose to use only one irq) to work by directing the PIO interrupts also to the first IRQ line. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-10mmc, sh: Move constants to sh_mmcif.hSimon Horman
This moves some constants from sh_mmcif.c to sh_mmcif.h so that they can be used in sh_mmcif_boot_init(). It also alters the definition of SOFT_RST_OFF from (0 << 31) to ~SOFT_RST_ON (= ~(1 << 31)). The former seems bogus. The latter is consistent with the code in sh_mmcif_boot_init(). Cc: Yusuke Goda <yusuke.goda.sx@renesas.com> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-09mmc: sdhci: Fix crash on boot with C0 stepping Moorestown platformsJacob Pan
SDHC2 is newly added in C0 stepping of Langwell. Without the Moorestown specific quirk, the default pci_probe will be called and crash the kernel. This patch unblocks the crash problem on C0 by using the same probing function as HC1, which limits the number of slots to one. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: sdhci-esdhc-imx: enable QUIRK_NO_MULTIBLOCK only for i.MX25 and i.MX35Eric Bénard
Only these CPUs list the bug in their errata. Signed-off-by: Eric Bénard <eric@eukrea.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhciEric Bénard
This patch fixes timeout problems on i.MX's sdhci as suggested by Richard Zhu. Tested on: - i.MX257: not needed - i.MX357: needed - i.MX515: needed More details can be found here: http://lists.infradead.org/pipermail/linux-arm-kernel/2010-October/029748.html Signed-off-by: Eric Bénard <eric@eukrea.com> Tested-by: Shawn Guo <shawn.gsc@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: sdhci: Properly enable SDIO IRQ wakeupsDaniel Drake
A little more work was needed for SDIO IRQ wakeups to be functional. Wake-on-WLAN on the SD WiFi adapter in the XO-1.5 laptop is now working. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: ushc: Return proper error code for ushc_probe()Axel Lin
Improves error handling in the ushc driver. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-01tree-wide: fix comment/printk typosUwe Kleine-König
"gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-29mfd: Adding twl6030 mmc card detect support for MMC1kishore kadiyala
Adding card detect callback function and card detect configuration function for MMC1 Controller on OMAP4. Card detect configuration function does initial configuration of the MMC Control & PullUp-PullDown registers of Phoenix. For MMC1 Controller, card detect interrupt source is twl6030 which is non-gpio. The card detect call back function provides card present/absent status by reading MMC Control register present on twl6030. Since OMAP4 doesn't use any GPIO line as used in OMAP3 for card detect, the suspend/resume initialization which was done in omap_hsmmc_gpio_init previously is moved to the probe thus making it generic for both OMAP3 & OMAP4. Cc: Tony Lindgren <tony@atomide.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29mmc: Allow 2 byte requests in 4-bit mode for tmio_mmcYusuke Goda
Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit mode if the hardware supports it. Tested with the SDHI hardware block included in sh7724. Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Signed-off-by: Matt Fleming <matt@console-pimps.org> Acked-by: Magnus Damm <damm@opensource.se> Tested-by: Arnd Hannemann <arnd@arndnet.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29mmc: Allow the platform to specify the sh_mmcif get_cd handlerArnd Hannemann
In some platforms (e.g. AP4EVB) the card detect pin of a slot is not directly connected to the sh_mmcif controller, so that polling needs to be used. To overcome the overhead induced by querying the controller on each poll cycle, card detection can be handled in the platform code more efficiently. This patch exposes a get_cd hook for that purpose. Signed-off-by: Arnd Hannemann <arnd@arndnet.de> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29mmc: Allow the tmio_mmc mfd driver to specify get_cd handlerArnd Hannemann
Some controllers, supported by the tmio_mmc driver do not have the card detect pin of a slot connected, so that polling needs to be used and card detection is handled by other means. This patch exposes a get_cd hook for that purpose. Signed-off-by: Arnd Hannemann <arnd@arndnet.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (66 commits) mmc: add new sdhci-pxa driver for Marvell SoCs mmc: make number of mmcblk minors configurable mmc_spi: Recover from CRC errors for r/w operation over SPI. mmc: sdhci-pltfm: add -pltfm driver for imx35/51 mmc: sdhci-of-esdhc: factor out common stuff mmc: sdhci_pltfm: pass more data on custom init call mmc: sdhci: introduce get_ro private write-protect hook mmc: sdhci-pltfm: move .h file into appropriate subdir mmc: sdhci-pltfm: Add structure for host-specific data mmc: fix cb710 kconfig dependency warning mmc: cb710: remove debugging printk (info duplicated from mmc-core) mmc: cb710: clear irq handler on init() error path mmc: cb710: remove unnecessary msleep() mmc: cb710: implement get_cd() callback mmc: cb710: partially demystify clock selection mmc: add a file to debugfs for changing host clock at runtime mmc: sdhci: allow for eMMC 74 clock generation by controller mmc: sdhci: highspeed: check for mmc as well as sd cards mmc: sdhci: Add Moorestown device support mmc: sdhci: Intel Medfield support ...
2010-10-26at91/atmel-mci: inclusion of sd/mmc driver in at91sam9g45 chip and boardNicolas Ferre
This adds the support of atmel-mci sd/mmc driver in at91sam9g45 devices and board files. This also configures the DMA controller slave interface for at_hdmac dmaengine driver. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2010-10-25Merge branch 'omap-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (163 commits) omap: complete removal of machine_desc.io_pg_offst and .phys_io omap: UART: fix wakeup registers for OMAP24xx UART2 omap: Fix spotty MMC voltages ASoC: OMAP4: MCPDM: Remove unnecessary include of plat/control.h serial: omap-serial: fix signess error OMAP3: DMA: Errata i541: sDMA FIFO draining does not finish omap: dma: Fix buffering disable bit setting for omap24xx omap: serial: Fix the boot-up crash/reboot without CONFIG_PM OMAP3: PM: fix scratchpad memory accesses for off-mode omap4: pandaboard: enable the ehci port on pandaboard omap4: pandaboard: Fix the init if CONFIG_MMC_OMAP_HS is not set omap4: pandaboard: remove unused hsmmc definition OMAP: McBSP: Remove null omap44xx ops comment OMAP: McBSP: Swap CLKS source definition OMAP: McBSP: Fix CLKR and FSR signal muxing OMAP2+: clock: reduce the amount of standard debugging while disabling unused clocks OMAP: control: move plat-omap/control.h to mach-omap2/control.h OMAP: split plat-omap/common.c OMAP: McBSP: implement functional clock switching via clock framework OMAP: McBSP: implement McBSP CLKR and FSR signal muxing via mach-omap2/mcbsp.c ... Fixed up trivial conflicts in arch/arm/mach-omap2/ {board-zoom-peripherals.c,devices.c} as per Tony
2010-10-25mmc: add new sdhci-pxa driver for Marvell SoCsZhangfei Gao
Support Marvell PXA168/PXA910/MMP2 SD Host Controller. Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com> Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc_spi: Recover from CRC errors for r/w operation over SPI.Sonic Zhang
The SPI bus is not reliable for large data transfers on all platforms. The current mmc_spi driver fails SD read/write commands immediately if occasional CRC errors are reported by the SD device. This patch makes the operation recover from CRC errors by repeating the last SD command. The retry count is set to 5 to ensure the driver passes stress tests. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci-pltfm: add -pltfm driver for imx35/51Wolfram Sang
This driver adds basic support for the esdhc-core found on e.g. imx35/51, as a platform driver. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Tested-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci-of-esdhc: factor out common stuffWolfram Sang
Put everything which can be shared between the OF and platform version of this driver into a local .h file. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> [cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci_pltfm: pass more data on custom init callWolfram Sang
The custom init call may need more data to perform its job, so we pass it a pointer to pdata, too. Also, always use the platform_id specific data even if platform_data is present. Doing that, platform_data can additionally be parsed by init() for board-specific information (via sdhci->mmc->parent). (Note: the old behaviour was that you could override the platform_id specific data with your own. However, one can still do this by using the "sdhci" id instead of "sdhci-<something>".) Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: introduce get_ro private write-protect hookWolfram Sang
Some controllers handle their write-protection differently. Introduce a callback to be able to handle it, ensuring the same locking takes place for it. Rename the status variable to make it more obvious why the read from the registers needs to be inverted. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci-pltfm: move .h file into appropriate subdirWolfram Sang
Make use of the include/linux/mmc directory. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Tested-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci-pltfm: Add structure for host-specific dataWolfram Sang
We need to carry some information per host, e.g. the clock. Add a structure for it and initialize it in the generic part. Also improve the check for a parent. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: fix cb710 kconfig dependency warningRandy Dunlap
Fix kconfig dependency warning to satisfy dependencies: warning: (MMC_CB710 && MMC && PCI) selects CB710_CORE which has unmet direct dependencies (MISC_DEVICES && PCI) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: cb710: remove debugging printk (info duplicated from mmc-core)Michał Mirosław
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: cb710: clear irq handler on init() error pathMichał Mirosław
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: cb710: remove unnecessary msleep()Michał Mirosław
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: cb710: implement get_cd() callbackMichał Mirosław
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: cb710: partially demystify clock selectionMichał Mirosław
Clock divider selection in partially verified, so document known facts in code. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: allow for eMMC 74 clock generation by controllerPhilip Rakity
Snippet of code for how adaptation layer should handle the call: /* * eMMC spec calls for the host to send 74 clocks to the card * during initialization, right after voltage stabilization. * create the clocks manually right here. */ void generate_init_clocks_A0(struct sdhci_host *host, u8 power_mode) { struct sdhci_mmc_slot *slot = sdhci_priv(host); if (slot->power_mode == MMC_POWER_UP && power_mode == MMC_POWER_ON) { /* controller specific code here */ /* slot->power_mode holds previous power setting */ } slot->power_mode = power_mode; } Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: highspeed: check for mmc as well as sd cardsPhilip Rakity
The SD and MMC code set highspeed using different constants. Change the sd driver to recognize this and switch to high speed. Validated code when testing eMMC dual data rate. Signed-off-by: Philip Rakity <prakity@marvell.com> [cjb: changelog + indentation fixes] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: Add Moorestown device supportAlan Cox
This adds the basic identifiers. Due to the various chip quirks it's not enough to make MRST support very useful for earlier steppings but that can follow. (I'm currently trying to verify which steps actually matter outside Intel so I can avoid unneeded stuff going upstream) [Extracted from original development] Signed-off-by: JiebingLi <jiebing.li@intel.com> [Folds in fixes] Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: Intel Medfield supportXiaochen Shen
Basic support for the Intel Medfield devices Give them their own quirks as we will need to update this later. Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: Allow the probe handler to override slotsAlan Cox
Currently we write it to the chip data, but if the probe handler overrides it we ignore the new value and keep using our cached one. Fix this so that a probe handler can adjust the slot count. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: split up sdhci.h for sdhci-pltfm usersGiuseppe Cavallaro
Some platforms based on sdhci-pltfm need to set their own quirks. Previously to this patch, the quirks were in drivers/mmc/host/sdhci.h. This patch splits drivers/mmc/host/sdhci.h into two parts: * drivers/mmc/host/sdhci.h includes the HC registers and I/O accessors. * include/linux/mmc/sdhci.h includes the sdhci structure and quirks. Instead of including drivers/mmc/host/sdhci.h, -pltfm drivers should now include include/linux/mmc/sdhci.h and include/linux/sdhci-pltfm.h. This patch avoids adding/changing the calls/flags in the sdhci_pltfm_data structure. It has been tested on STM platforms (e.g. STx7106, STx7108, STx5206) where the driver is configured and used as shown in the example below: [snip] static int mmc_pad_resources(struct sdhci_host *sdhci) { if (!devm_stm_pad_claim(sdhci->mmc->parent, &stx7108_mmc_pad_config, dev_name(sdhci->mmc->parent))) return -ENODEV; return 0; } static struct sdhci_pltfm_data stx7108_mmc_platform_data = { .init = mmc_pad_resources, .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, }; static struct platform_device stx7108_mmc_device = { .name = "sdhci", [snip] Note: drivers/mmc/host/sdhci.h now also includes linux/mmc/sdhci.h, and no modifications should be needed on other sdhci-<XXX> drivers. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: fix "pwr may be used uninitialized" warningGiuseppe Cavallaro
This patch fixes a warning when compiling the sdhci driver: pwr may be used uninitialized in sdhci_set_power Tested with the following compiler versions: 4.2.4 and 4.4.4 Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci-pltfm: add suspend/resume functionsGiuseppe Cavallaro
This patch adds the suspend and resume functions in the sdhci-pltfm device driver. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: Move regulator handling closer to coreLinus Walleij
After discovering a problem in regulator reference counting I took Mark Brown's advice to move the reference count into the MMC core by making the regulator status a member of struct mmc_host. I took this opportunity to also implement NULL versions of the regulator functions so as to rid the driver code from some ugly #ifdef CONFIG_REGULATOR clauses. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Sundar Iyer <sundar.iyer@stericsson.com> Cc: Daniel Mack <daniel@caiaq.de> Cc: Pierre Ossman <pierre@ossman.eu> Cc: Matt Fleming <matt@console-pimps.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Cliff Brake <cbrake@bec-systems.com> Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: disable MMC_CAP_NEEDS_POLL in nonremovable caseJaehoon Chung
When a controller requires SDHCI_QUIRK_BROKEN_CARD_DETECTION, we poll for card insertion/removal, and that creates interrupts. There's no need to be doing this if we have a non-removable card. This patch requires cards to be removable before we're willing to set MMC_CAP_NEEDS_POLL. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Matt Fleming <matt@console-pimps.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> [cjb: modified changelog and code indentation] Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: Makefile: Fix EXTRA_CFLAGS assignmentmatt mooney
The EXTRA_CFLAGS assignment in mmc/Makefile was not accomplishing anything because this flag only has effect on sources at the same level as the makefile (i.e., per directory). Since card/, core/, and host/ rely on MMC_DEBUG, the subdir-ccflags-y variant seems to be the appropriate choice. Signed-off-by: matt mooney <mfm@muteddisk.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: print out controller name for register debugPhilip Rakity
In a multi-controller environment it is helpful to know which controller has problems. Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-23mmc: sdhci: add MMC_CAP_8_BIT_DATA in the host capabilitiesGiuseppe Cavallaro
This patch is necessary to gain the performance boost from 8-bit data with the sdhci-stm driver. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Chris Ball <cjb@laptop.org>