| 11c8c735ebf68c754bdd94cebd307a96fcd95068 |
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17-Apr-2012 |
Nicolas Pitre <nicolas.pitre@linaro.org> |
mmc: sdio: avoid spurious calls to interrupt handlers
commit bbbc4c4d8c5face097d695f9bf3a39647ba6b7e7 upstream.
Commit 06e8935feb ("optimized SDIO IRQ handling for single irq")
introduced some spurious calls to SDIO function interrupt handlers,
such as when the SDIO IRQ thread is started, or the safety check
performed upon a system resume. Let's add a flag to perform the
optimization only when a real interrupt is signaled by the host
driver and we know there is no point confirming it.
Reported-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
/drivers/mmc/core/sdio_irq.c
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| 2c4967f741e87cdd63de7271b97807041dccbf3b |
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04-Feb-2012 |
Sujit Reddy Thumma <sthumma@codeaurora.org> |
mmc: core: Ensure clocks are always enabled before host interaction
Ensure clocks are always enabled before any interaction with the
host controller driver. This makes sure that there is no race
between host execution and the core layer turning off clocks
in different context with clock gating framework.
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
/drivers/mmc/core/sdio_irq.c
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| 3ef77af154b03776c6c662c68c6332719e9eecac |
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10-Jul-2011 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
mmc: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required
These two basic defines were everywhere, simply because module.h
was also everywhere. But we are cleaning up the latter. So make
the exporters actually call out their need for the include.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
/drivers/mmc/core/sdio_irq.c
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| a3c76eb9d4a1e68a69dd880cf0bcb8a52418b993 |
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11-Oct-2011 |
Girish K S <girish.shivananjappa@linaro.org> |
mmc: replace printk with appropriate display macro
All the files using printk function for displaying kernel messages
in the mmc driver have been replaced with corresponding macro.
Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
/drivers/mmc/core/sdio_irq.c
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| 06e8935febe687e2a561707d4c7ca4245d261dbe |
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11-May-2011 |
Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com> |
mmc: sdio: optimized SDIO IRQ handling for single irq
If there is only 1 function interrupt registered it is possible to
improve performance by directly calling the irq handler and avoiding
the overhead of reading the CCCR registers.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@stericsson.com>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
/drivers/mmc/core/sdio_irq.c
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| 25985edcedea6396277003854657b5f3cb31a628 |
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31-Mar-2011 |
Lucas De Marchi <lucas.demarchi@profusion.mobi> |
Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
/drivers/mmc/core/sdio_irq.c
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| 6501ff604a5ae18697c9b4cd40a7738d3a68e7fe |
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31-Aug-2008 |
Pierre Ossman <drzeus@drzeus.cx> |
sdio: give sdio irq thread a host specific name
There is one thread per host controller so make sure they all get
unique names.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| e633b7bcec8e26991d489a11615acf7674efbaf4 |
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31-Aug-2008 |
Pierre Ossman <drzeus@drzeus.cx> |
sdio: make sleep on error interruptable
Make sure we can be woken from the forced sleep that is done on errors.
Removing a card often results in -ENOMEDIUM or -EILSEQ so we previously
locked up the removal process for a second.
We could completely exit on -ENOMEDIUM, but it might be a transient
glitch so treat it like any other error.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| 6fee65cfde519ae811c3cde47c622271168ca449 |
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28-Mar-2008 |
Robert P. J. Day <rpjday@crashcourse.ca> |
mmc: use shorter, equivalent set_current_state()
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| 599473cf15a3fae78cbc3192cfb38ca04d5abc72 |
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03-Oct-2007 |
Nicolas Pitre <nico@cam.org> |
sdio: make the IRQ thread more resilient in the presence of bad states
Currently we print a message about some bad states wrt function IRQ
handlers but return 0 from process_sdio_pending_irqs() nevertheless.
This can lead to an infinite loop as nothing might have cleared the
condition for the pending card interrupt from the host controller by
the time host->ops->enable_sdio_irq(host, 1) is called.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| 3e01e4bcdd56209e70c39293e0c4c355d09364b8 |
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03-Oct-2007 |
Nicolas Pitre <nico@cam.org> |
sdio: fix IRQ diagnostic message
If func is actually null we won't get much from sdio_func_id(func).
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| 6f4285d13300f1c8cd675a41ab390cea06173cd1 |
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27-Sep-2007 |
Pierre Ossman <drzeus@drzeus.cx> |
sdio: adaptive interrupt polling
The interrupt polling frequency is a compromise between power usage and
interrupt latency. Unfortunately, it affects throughput rather severely
for devices which require an interrupt for every chunk of data.
By making the polling frequency adaptive, we get better throughput with
those devices without sacficing too much power. Polling will quickly
increase when there is an actual interrupt, and slowly fall back to the
idle frequency when the interrupts stop coming.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| d84075c8aed771d47d7ac6e96b098559da361c25 |
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09-Aug-2007 |
Pierre Ossman <drzeus@drzeus.cx> |
mmc: replace BUG_ON with WARN_ON
Replace all cases of BUG_ON with WARN_ON where there is a chance
(with varying degrees of slim) that the kernel can continue without
incidence.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| 17b759aff916b4d02721e75ce5ed82b1903e5bd6 |
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24-Jul-2007 |
Nicolas Pitre <nico@cam.org> |
sdio: add interface for host side SDIO interrupt reporting
Signed-off-by: Nicolas Pitre <npitre@mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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| d1496c39e500857b8949cdb91af24e0eb8aae4d0 |
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30-Jun-2007 |
Nicolas Pitre <nico@cam.org> |
sdio: core support for SDIO function interrupt
Signed-off-by: Nicolas Pitre <npitre@mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
/drivers/mmc/core/sdio_irq.c
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