Even in failed case of pm_runtime_get_sync, the usage_count
is incremented. In order to keep the usage_count with correct
value and runtime power management to behave correctly, call
pm_runtime_put(_sync) in such case.
Signed-off-by Liu Chuansheng
Signed-off-by: Li Fei
---
drivers/mmc/core/sdi
Function _mmc_detect_card_removed will be called to know whether
the card is still present when host->bus_ops->detect is called.
In current code, the return value of this function generally only
depend on the result of sending cmd13 to card, which may not safe
for card with detection support like s
On Wed, 2013-02-27 at 22:15 -0800, Kevin Liu wrote:
> Andy,
Added linux-mmc@ ML.
> I never used mmc_test.c and I have several questions for it.
> 1. I have 3 sdh controllers (sd, emmc, sdio) in system, then which host does
> mmc_test test?
> 2. I found mmc_test always bind to sdio, so fail to a
1. mmc_rescan will call get_cd to know whether the card is present
before mmc_rescan_try_freq to avoid useless trials during
card removal or start host is called when card is not present.
2. get_cd need to be checked to resolve slow card removal issue.
Signed-off-by: Kevin Liu
---
drivers/mmc/ho
Function _mmc_detect_card_removed will be called to know whether
the card is still present when host->bus_ops->detect is called.
In current code, the return value of this function generally only
depend on the result of sending cmd13 to card, which may not safe
for card with detection support like s
On Mon, Feb 25, 2013 at 5:39 AM, Sachin Kamat wrote:
> Just a small clarification needed in this regard.
> On systems that do not use pinctrl and need to configure the gpios, we
> used to check the return value of devm_pinctrl_get_select_default()
> for error and then parse the dt file for gpios
On Wednesday 27 February 2013, Shawn Guo wrote:
> Required properties:
> - compatible: Should be "fsl,-mmc". The supported chips include
>imx23 and imx28.
> -- interrupts: Should contain ERROR and DMA interrupts
> -- fsl,ssp-dma-channel: APBH DMA channel for the SSP
> +- interrupts: Should c
The JEDEC MMC v4 spec defines a new PRV value in place of the original
fwrev and hwrev specified in v1. We can expose this in the kernel to enable
user space to more easily determine the product revision of a given MMC.
Signed-off-by: Bernie Thompson
---
Documentation/mmc/mmc-dev-attrs.txt | 1 +
With the generic DMA device tree helper supported by mxs-dma driver,
client devices only need to call dma_request_slave_channel() for
requesting a DMA channel from dmaengine.
Since mxs is a DT only platform now, along with the changes, the non-DT
case checking in probe function also gets cleaned u
2013/2/27 Chris Ball :
> Hi,
>
> On Wed, Feb 27 2013, Kevin Liu wrote:
>> Thanks for quick answer!
>> Then if broken-cd/SDHCI_QUIRK_BROKEN_CARD_DETECTION is selected, can I
>> use host controller Present State Register[18] (offset 0x24) to know
>> card status (present or not)?
>
> sdhci.c:
>
>
Hi,
On Wed, Feb 27 2013, Kevin Liu wrote:
> Thanks for quick answer!
> Then if broken-cd/SDHCI_QUIRK_BROKEN_CARD_DETECTION is selected, can I
> use host controller Present State Register[18] (offset 0x24) to know
> card status (present or not)?
sdhci.c:
present = mmc_gpio_get_cd(host->mm
2013/2/27 Chris Ball :
> Hi,
>
> The CC: list seems excessively long here.
>
> On Wed, Feb 27 2013, Kevin Liu wrote:
>> Who can help to answer below question?
>> Which statement is true if quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION is
>> selected?
>> 1. The host controller Present State Register[18]
On 02/15/2013 12:22 AM, Manjunathappa, Prakash wrote:
> Populate OF_DEV_AUXDATA with desired device name expected by
> davinci_mmc driver. Without this clk_get of davinci_mmc DT driver
> fails.
>
> Signed-off-by: Manjunathappa, Prakash
> Cc: linux-mmc@vger.kernel.org
> Cc: linux-arm-ker...@lists.
On 2/15/2013 11:51 AM, Manjunathappa, Prakash wrote:
> Remove specifying mmc controller IP version information via platform
> data, instead specify device name so that driver derives it from
> platform_device_id table. Also change the clock node name to match
> the changed dev_id.
> Tested on da850
On 2/15/2013 11:52 AM, Manjunathappa, Prakash wrote:
> Adds device tree support for davinci_mmc. Also add binding documentation.
> As of now in non-dma PIO mode and without GPIO card_detect/write_protect
> option because of dependencies on EDMA and GPIO module DT support.
>
> Signed-off-by: Manjun
According to spec, the maximum power up time is 35ms.
Please refer to below spec for sd and emmc:
"SD Physical Layer Specification 4.10, chapter 6.4.1.2
Power Up Time of Host."
"JEDEC 4.5.1, chapter 10.3.3 Power supply voltages."
Signed-off-by: Kevin Liu
---
drivers/mmc/core/core.c |5 ++---
Function _mmc_detect_card_removed will be called to know whether
the card is still present when host->bus_ops->detect is called.
In current code, the return value of this function generally only
depend on the result of sending cmd13 to card, which may not safe
for card with detection support like s
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