- 23 7月, 2012 1 次提交
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由 Shawn Guo 提交于
If bootloader or platform initialization code does not enable the power supply to mmc slot, we need to do it in mmc driver. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 21 7月, 2012 25 次提交
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由 Philip Rakity 提交于
If we are using a regulator the SD Host Controller and the regulator should agree about the voltages supported. Use the common subset that is supported. 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
max_current_caps can return 0 if not available from the sd controller. If no regulator is present or the regulator specifies a current less then 200ma, we no longer still set the 200mA caps bit anyway. Signed-off-by: NPhilip Rakity <prakity@marvell.com> Reviewed-by: NAaron Lu <aaron_lu@amd.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Philip Rakity 提交于
The sd host controller spec indicates the the MAX_CURRENT value may be returned as 0. In this case other methods need to be used to return the current. If 0 is returned and there is a regulator, ask the regulator for how much current is available. Signed-off-by: NPhilip Rakity <prakity@marvell.com> Signed-off-by: NMark F. Brown <mark.brown314@gmail.com> Reviewed-by: NAaron Lu <aaron.lu@amd.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Extend the sh_mmcif driver to support GPIO card detection, provided by the slot function module. The original .get_cd() platform callback is also preserved for now. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Add primitive OF support to the sh-mmcif driver, which also makes it necessary to be able to run without platform data. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Add primitive support for OF to the SDHI TMIO glue, which also makes it necessary to be able to run without platform data. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
The tmio-mmc driver is already using the generic GPIO CD handler in IRQ mode. This patch adds support for CD polling mode and also checks for availability of a WP GPIO. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Let SDHI platforms specify mmc_host::caps2 flags in their platform data. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Allow tmio mmc glue drivers to pass mmc_host::caps2 flags down to the mmc layer. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Add regulator support to the sh_mmcif driver, but also preserve the current power-callback. Also note, that the card power is not switched off during clock gating periods, hence there's no need to power it on every time the card is re-activated. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Reviwed-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
From the original version of sh_mmcif the .set_pwr() callback has only been used to turn the card's power on, and the .down_pwr() callback has been used to turn it off. .set_pwr() can be used for both these tasks, which is also how it is implemented by the only user of this API: the SH7724 ecovec board. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
With aggressive clock gating the clock can be disabled during interface inactivity. During this time its frequency can be changed by another its user. Therefore when the interface is activated again and the clock is re-enabled, its frequency has to be re-read. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Regardless of whether the MMC bus clock is the same as the PM clock on this specific interface, it has to be managed separately. Its proper management should also include enabling and disabling of the clock, whenever the interface is becoming active or going idle respectively. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
A check for NULL platform data can be conveniently made in the very beginning of probing. Replace numbered error-handling labels in .probe() with meaningful names to make any future reorganisation simpler. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Currently the SDHI glue for the TMIO MMC driver installs dummy .get_cd() and .set_pwr() callbacks even if the platform didn't supply them. This is not necessary, since the TMIO MMC driver itself checks for NULL callbacks. This is also dubious if the platform provides a regulator for SD-card power switching. It is better to only install those callbacks, if they are really provided by the platform. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Currently the TMIO MMC driver derives the OCR mask from the platform data and uses a platform callback to turn card power on and off. This patch adds regulator support to the driver. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Instead of delivering one static clock frequency value, read from the hardware during probing, enable the tmio-mmc driver to re-read the frequency dynamically. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
Every time the clock is enabled after possibly being disabled, we have to re-read its frequency and update our configuration. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
We don't have to force-enable MMC interrupts in our .probe() method, mmc_add_host() will trigger card detection, that will enable all the necessary interrupts. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Jonathan Kliegman 提交于
host->dma_ops is not valid if host->usa dma is 0 so protect host->dma_ops reference in dw_mci_resume Signed-off-by: NJonathan Kliegman <kliegs@chromium.org> Acked-by: NJaehoon Chung <jh80.chung@samsung.com> Acked-by: NWill Newton <will.newton@imgtec.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Laurent Pinchart 提交于
The tmio_mmc_set_ios() function configures the MMC power, clock and bus width. When the mmc core requests the driver to power off the card, we inform runtime PM, that the controller can be suspended. This can lead to the MSTP clock being turned off. Writing to any 16-bit hardware registers with the MSTP clock off leads to timeouts and errors being printed to the kernel log. This can occur both when stopping the MMC clock and when configuring the bus width. To fix this, stop the MMC clock before calling put_runtime_pm(), and skip bus width configuration when power is off. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: NSimon Horman <horms@verge.net.au> Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Laurent Pinchart 提交于
The MMC_SLEEP_AWAKE and SD_IO_SEND_OP_COND commands share the same opcode. SD_IO_SEND_OP_COND isn't supported by the SH MMCIF, but MMC_SLEEP_AWAKE is. Discriminate between the two commands using the command flags, and reject SD_IO_SEND_OP_COND only. Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Girish K S 提交于
In the current dwmmc driver there is support for selecting IDMAC from the menu config option. If the support for IDMAC is enabled in the menu config and the hardware configuration register's DMA_INTERFACE field is 0, the driver will still try to do the DMA initialization. The dw_mci_idmac_init function currently implemented returns only success indicating that the DMA initialization is always successful. This patch adds a check for existence of the DMA IP to allow the DMA initialization. Signed-off-by: NGirish K S <girish.shivananjappa@linaro.org> Acked-by: NWill Newton <will.newton@imgtec.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Chris Ball 提交于
Tested on an OLPC XO-1.75. (MMP2, sdhci-pxav3, CONFIG_MACH_MMP2_DT=y) Signed-off-by: NChris Ball <cjb@laptop.org> Acked-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
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- 11 7月, 2012 2 次提交
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由 Guennadi Liakhovetski 提交于
GPIOs can be used in MMC/SD-card slots not only for hotplug detection, but also to implement the write-protection pin. Rename cd-gpio helpers to slot-gpio to make addition of further slot GPIO functions possible. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Guennadi Liakhovetski 提交于
mmc.h defines macros for most frequently used MMC opcodes. Use them instead of hard-coded numbers. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 27 6月, 2012 1 次提交
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由 Ming Lei 提交于
This patch reverts the commit dba3c29e. After bisecting, this commit dba3c29e is found to ruin micro-SD card data (writing incorrect file, or fs is corrupt after several times mount) on the beagle-xm revB, and reverting the commit will fix the problem. Also from TRM of OMAP3/OMAP4/DM37x, the below is mentioned about the Auto CMD12 Enable bit. - SDIO does not support this feature. - SD card only. Looks it is not suitable to always enable Auto CMD12 in host controller driver. Considered that the commit is not mature enough, so ask to revert it first. Cc: Balaji T K <balajitk@ti.com> Cc: Venkatraman S <svenkatr@ti.com> Buglink: https://lkml.org/lkml/2012/6/10/225Reported-by: NPaolo Pisati <p.pisati@gmail.com> Reported-bisected-and-tested-by: NMing Lei <ming.lei@canonical.com> Signed-off-by: NMing Lei <ming.lei@canonical.com> Acked-by: NVenkatraman S <svenkatr@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 21 6月, 2012 1 次提交
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由 Viresh Kumar 提交于
viresh.kumar@st.com email-id doesn't exist anymore as I have left the company. Replace ST's id with viresh.linux@gmail.com. It also updates .mailmap file to fix address for 'git shortlog' Signed-off-by: NViresh Kumar <viresh.linux@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 18 6月, 2012 2 次提交
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由 Roland Stigge 提交于
If the GPIOs used by the MMCI driver are not registered yet when the driver is probe()d, they can't be used. This happens if the mmci driver is probed before the respective GPIO controller (e.g. on the LPC32xx EA3250 board, the PCA9532 GPIO controller would be initialized via DT after mmci). Therefore, we defer mmci in this case. Signed-off-by: NRoland Stigge <stigge@antcom.de> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Roland Stigge 提交于
Zero is a valid GPIO and shouldn't be handled as an error return code from of_get_named_gpio(). It was a leftover from old code before getting pdata->gpio_*() was modified. Signed-off-by: NRoland Stigge <stigge@antcom.de> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 14 6月, 2012 1 次提交
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由 Lee Jones 提交于
When booting with Device Tree enabled, platform specific information is gathered by parsing the DT binary. Platform data is subsequently populated with the result. The memory required for this is not automatically allocated during Device Tree boot, so we'll do it here instead. Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NLee Jones <lee.jones@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 06 6月, 2012 7 次提交
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由 Marek Vasut 提交于
Signed-off-by: NMarek Vasut <marex@denx.de> Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Heiko Stübner 提交于
Fix a boot regression in existing kernels causing: genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq XXX caused by 1c6c6952 (genirq: Reject bogus threaded irq requests). Signed-off-by: NHeiko Stuebner <heiko@sntech.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Tony Lindgren 提交于
Commit fa550189 (mmc: core: Prevent eMMC VCC supply to be cut from late init) slightly affected timings for how things are done for the omap MMC driver causing the MMC cards not getting detected any longer. Turns out this was caused by buggy reg_shift initialization in the omap MMC driver that was happening after mmc_add_host() was being called. Fix this by initializing reg_shift before mmc_add_host() is called. Signed-off-by: NTony Lindgren <tony@atomide.com> Cc: <stable@vger.kernel.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Tony Lindgren 提交于
Commit b01a4f1c (mmc: omap: convert to per instance workqueue) initializes the workqueue too late causing the following: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 0 Not tainted (3.4.0-08218-gb48b2c3e #158) PC is at __queue_work+0x8/0x46c LR is at queue_work_on+0x38/0x40 pc : [<c005bb4c>] lr : [<c005c00c>] psr: 60000193 sp : c0691e1c ip : 00000000 fp : c07374ac r10: c7aae400 r9 : c0395700 r8 : 00000100 r7 : c0691e70 r6 : 00000000 r5 : 00000000 r4 : c7aae440 r3 : 00000001 r2 : c7aae440 r1 : 00000000 r0 : 00000000 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 00c5387d Table: 80004000 DAC: 00000017 Process swapper/0 (pid: 0, stack limit = 0xc06902f8) Stack: (0xc0691e1c to 0xc0692000) Fix this by initializing the workqueue before mmc_omap_remove_slot() get called. Tested on n770, looks like n800 at least still has some other issue with MMC. Signed-off-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Tony Lindgren 提交于
Commit b6e0703b (mmc: omap: make it behave well as a module) made some __devinit changes but missed one function causing a section warning: WARNING: vmlinux.o(.devinit.text+0x8604): Section mismatch in reference from the function mmc_omap_probe) The function __devinit mmc_omap_probe() references a function __init mmc_omap_new_slot(). Signed-off-by: NTony Lindgren <tony@atomide.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Seungwon Jeon 提交于
In case of "host->bus_hz < slot->clock", divider value is miscalculated. And clock divider register value is multiple of 2. If calculated divider value is odd number, result can be over-clocking. Signed-off-by: NSeungwon Jeon <tgih.jun@samsung.com> Acked-by: NWill Newton <will.newton@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Seungwon Jeon 提交于
Setting host->data to NULL is incorrect sequence in dw_mci_command_complete. This early setting makes the skip of dma_unmap_sg in dw_mci_dma_cleanup. Signed-off-by: NSeungwon Jeon <tgih.jun@samsung.com> Acked-by: NWill Newton <will.newton@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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