The ADMA2 descriptor table size was being calculated incorrectly
Fix it.
Note that it has been wrong for a long time and likely has not
caused any problems because of a combination of 1) not needing
alignment descriptors for block operations 2) more memory being
allocated than was requested 3) the use of
SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC which does not use an extra
descriptor for the end marker.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add support for non-removable slots which have no card detection GPIO
and which should not be polled for a card change.
Signed-off-by: Timo Kokkonen <timo.kokkonen@offcode.fi>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Besides the I/O clock, some PXAv3 SDHCI IP also requires a core clock to
be enabled. Add an optional core clock to the corresponding driver.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
With support for more than one clock, we'll need to distinguish between
the clock by name. Change clock probing to first try to get "io" clock
before falling back to unnamed clock.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
As we are using references to the I/O clock throughout the driver,
move it to the private data. Also, in preparation for core clock,
rename it to clk_io.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
sdhci_add_host and sdhci_platfm_init already report failure,
so don't emit error messages when a failure occurs. This prevents
occurences of "deferred" messages when required power supplies
are not ready for operation yet.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The dw_mmc driver had a bunch of code that ran whenever a card was
ejected and inserted. However, this code was old and crufty and
should be removed. Some evidence that it's really not needed:
1. Is is supposed to be legal to use 'cd-gpio' on dw_mmc instead of
using the built-in card detect mechanism. The 'cd-gpio' code
doesn't run any of the crufty old code but yet still works.
2. While looking at this, I realized that my old change (369ac86 mmc:
dw_mmc: don't queue up a card detect at slot startup) actually
castrated the old code a little bit already and nobody noticed.
Specifically "last_detect_state" was left as 0 at bootup. That
means that on the first card removal none of the crufty code ran.
3. I can run "while true; do dd if=/dev/mmcblk1 of=/dev/null; done"
while ejecting and inserting an SD Card and the world doesn't
explode.
If some of the crufty old code is actually needed, we should justify
it and also put it in some place where it will be run even with
"cd-gpio".
Note that in my case I'm using the "cd-gpio" mechanism but for various
reasons the hardware triggers a dw_mmc "card detect" at bootup. That
was actually causing a real bug. The card detect workqueue was
running while the system was trying to enumerate the card. The
"present != slot->last_detect_state" triggered and we were doing all
kinds of crazy stuff and messing up enumeration. The new mechanism of
just asking the core to check the card is much safer and then the
bogus interrupt doesn't hurt.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: alim.akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
"ret" is a signed int, so use "%d" in format strings instead of "%u".
This prevents cryptic codes in error messages like this:
sdhci-arasan e0101000.sdhci: platform register failed (4294966779)
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Move the mach header that can come either from arm/mach-at91 or avr32 to
platform_data to be able to switch the AT91 platforms to multiplatform.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[Ulf: Fixed compile error]
The "set_ios" function is called with a clock of 0 when the clock is
turning off. There's no reason to go through all the extra Rockchip
logic (whose goal is to make sure DIV is 0 or 1) in that case. The
Rockchip logic happened to work because the CCF will pick the lowest
possible rate when you ask it for a clock of 0, but it's silly to go
through all the remuxing and adjusting for no reason.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In (28f92b5 mmc: core: Try other signal levels during power up) we can
see that there are times when it's valid to try several signal
voltages. Don't print an ugly error in the logs when that happens.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
We've already got a reset of DMA after it's done. Add one before we
start DMA too. This fixes a data corruption on Rockchip SoCs which
will get bad data when doing a DMA transfer after doing a PIO transfer.
We tested this on an Exynos 5800 with HS200 and didn't notice any
difference in sequential read throughput.
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The msm_sdcc host shall not use mmc core specific macros to handle its
driver data. Instead, convert to use the platform device driver macros.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
NULL-checking a struct clk it not only wrong but also not required as
for PXAv3 driver the corresponding clock is mandatory. Remove the
checks from sdhci_pxav3_runtime_{suspend,resume}.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
clk_enable from struct sdhci_pxa is unused, remove it from the private
driver data.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
struct sdhci_pxa is only used in sdhci_pxa driver itself, so move it
there.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
commit bb8175a8aa
("mmc: sdhci: clarify DDR timing mode between SD-UHS and eMMC")
added MMC_DDR52 as eMMC's DDR mode to be distinguished from SD-UHS.
While the differentation may be useful, pxav3 SDHCI controller lacks
a corresponding check in its custom .set_uhs_signaling callback for
MMC_DDR52. This patch adds a new switch case for MMC_TIMING_MMC_DDR52
to MMC_TIMING_UHS_DDR50 case.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
struct sdhci_pxa is private data of PXA SDHCI driver, but not used in
sdhci-pxav2 at all. Drop unused references to struct sdhci_pxa.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add the case of SET_BLOCK_COUNT command error to the error conditions
check for making a controller reset at request handling finish.
Otherwise, if the SET_BLOCK_COUNT command failed, e.g. with a timeout,
the controller state was not reset, and the next command failed too.
In the case of data error the controller reset is already done in
finish_data() function before sending stop command (if present),
so the finish tasklet should make a reset after data error only
if no stop command existed in the request.
Also, fix the indentation of this condition check to make it more logical.
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
As a follow-up of commit
"mmc: sdhci: Balance vmmc regulator_enable(), and always enable vqmmc"
vmmc regulator disable is also not needed in sdhci_remove_host.
The regulator is completely controlled by mmc_power_up and mmc_power_off
functions and is already disabled by the time of removing the host.
Extra regulator_disable call in sdhci_remove_host is unbalanced and
causes a warning reported by regulator core, so should be removed.
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The commit ad93220de7 ("mmc: sdhci-esdhc-imx: change pinctrl state
according to uhs mode") exits the probe in case there are no valid
pinctrl states found.
As there are configurations doing the pin mux properly in the boot
loader, don't exit. Just warn, but go on in case if there are no
pinctrl states in the device tree.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If available voltages are not given, mmc_regulator_get_supply() function
returns 0 and mxcmmc driver doesn't set a value for ocr_avail mask.
In accordance with the comment in platform_data/mmc-mxcmmc.h,
fix it, assuming MMC_VDD_32_33 | MMC_VDD_33_34 as default value.
Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
During a read of data block using dma, driver might have two ways to finish to read
and free the resources:
1) checking STATUS_DATA_TRANS_DONE mask, in the mxcmci_irq() routine
(pending to mmc irq)
2) mxmmc driver, registers also a mxcmci_dma_callback() and when transfer is finished,
dma driver calls this callback. (pending to dma irq)
Both ways are concurrent with each other.
Race condition happens when following events occur:
/* (1) mxcmci driver start data transfer */
158.418970: mpc_dma_execute: mpc_dma_execute(): will_access_peripheral start cid=31
158.418976: mpc_dma_issue_pending <-mxcmci_request
158.418983: mxcmci_start_cmd <-mxcmci_request
/* (2) mxcmci driver receive mmc irq */
158.419656: mxcmci_irq <-handle_irq_event_percpu
158.419692: mxcmci_read_response <-mxcmci_irq
/* (3) mxcmci driver checks that transfer is complete and call mxcmci_finish_data() */
158.419726: mxcmci_data_done <-mxcmci_irq
158.419729: mxcmci_finish_data <-mxcmci_data_done
158.419733: dma_direct_unmap_sg <-mxcmci_finish_data
158.419736: mxcmci_swap_buffers.isra.24 <-mxcmci_finish_data
158.419762: mxcmci_read_response <-mxcmci_data_done
/* (4) mxcmci driver (no dma): send stop command */
158.419765: mxcmci_start_cmd <-mxcmci_data_done
/* (5) mxcmci driver (no dma): receive the stop command irq response */
158.419782: mxcmci_irq <-handle_irq_event_percpu
158.419812: mxcmci_read_response <-mxcmci_irq
158.419843: mxcmci_finish_request <-mxcmci_irq
/* (6) dma driver: receive dma irq (finish data transfer) related by request on step 1 */
158.419853: mpc_dma_irq <-handle_irq_event_percpu
158.420001: mpc_dma_irq_process <-mpc_dma_irq
158.420004: mpc_dma_irq_process <-mpc_dma_irq
/* (7) dma driver: start dma tasklet to finish the dma irq handling */
158.420008: mpc_dma_irq_process: mpc_dma_irq_process(): completed ch:31
/* (8) mxcmci driver: start next data transfer using dma */
158.420174: mxcmci_request <-mmc_start_req
158.420182: dma_direct_map_sg <-mxcmci_request
158.420192: mpc_dma_prep_slave_sg <-mxcmci_request
/* (9) dma driver: schedule irq tasklet and execute mxcmci dma driver callback */
158.420250: mpc_dma_tasklet <-tasklet_action
158.420254: mpc_dma_process_completed <-tasklet_action
158.420267: mxcmci_dma_callback <-mpc_dma_process_completed
/* ERROR!!! (10) mxcmci driver callback works on dma data related to the step 1
that is already finished */
158.420271: mxcmci_data_done <-mpc_dma_process_completed
158.420273: mxcmci_finish_data <-mxcmci_data_done
/* ERROR!!! (11) mxcmci driver: clear data that should be used by step 8 and
send an other mmc stop command (already sended on step 4) */
158.420276: dma_direct_unmap_sg <-mxcmci_finish_data
158.420279: mxcmci_swap_buffers.isra.24 <-mxcmci_finish_data
158.420330: mxcmci_read_response <-mxcmci_data_done
158.420333: mxcmci_start_cmd <-mxcmci_data_done
158.420338: dma_run_dependencies <-mpc_dma_process_completed
...
...
...
168.474223: mxcmci_watchdog <-call_timer_fn
168.474236: mxcmci_watchdog: mxcmci_watchdog
168.474397: mpc_dma_device_control <-mxcmci_watchdog
In accordance with the other drivers that using the dma engine,
fix it, leaving *only* to dma driver the complete control to
ending the read operation.
Removing STATUS_READ_OP_DONE event activation, has as effect
to force mxcmci driver to handle the finish data transfer only
by mxcmci dma callback.
Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Braswell eMMC host controller specifies an incorrect
timeout clock frequncy in the capabilities registers.
The correct value is 1 MHz. A similar fix was done
for sdhci-pci, however in the sdhci-acpi case the
HID/UID is not unique so the capabilities register
values are matched also.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Pass HID and UID to probe_slot so extra setup
can be done for specific ids.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
UID was made available on acpi_device since
commit ccf7804026 ("ACPI: Add _UID support for ACPI devices.")
Use it from there instead of reprocessing the
ACPI object info.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The __initconst is in the wrong place, and when moved to the correct place
it uncovers an error where the variable is used by non-init data structures.
Instead merely make them const and put the const in the right spot.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Braswell eMMC host controller specifies an incorrect
timeout clock frequncy in the capabilities registers.
The correct value is 1 MHz.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Let a driver override the timeout clock frequency by
populating it before calling sdhci_add_host(). Note
the value will otherwise be zero because sdhci_host is
zeroed when allocated.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add support for card detect for Bay Trail
and Braswell SD Card host controllers in PCI
mode.
This uses the gpio descriptor API which can find
gpio descriptors, for example, on an ACPI comapnion
device.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add a HID (INT33BB) and UID (3) for a SD Card host controller.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add a quirk for a host controller that always sets
a Transfer Complete interrupt status for the stop
command even when a busy response is not indicated.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
commit 98e90de99a
"mmc: host: switch OF parser to use gpio descriptors"
switched the semantic behaviour of card detect and read
only flags such that the inversion capability flag would
only be set if inversion was explicitly specified in the
device tree, in the hopes that no-one was using double
inversion.
It turns out that the XOR:ing between the explicit
inversion was indeed in use, so we need to restore the
old semantics where both ways of inversion are checked
and the end result XOR:ed.
Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Tested-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
As of 528bc7808f ("mmc: atmel-mci: Release mmc resources on failure in probe"),
the atmci_probe() function calls atmci_cleanup_slot in the failure path.
This causes a new warning whenever the driver is built:
WARNING: drivers/mmc/host/built-in.o(.init.text+0xa04): Section mismatch in reference from the function atmci_probe() to the function .exit.text:atmci_cleanup_slot()
The function __init atmci_probe() references
a function __exit atmci_cleanup_slot().
Gcc correctly warns about this function getting dropped in the link stage
for the built-in case, which would cause undefined behavior when this error
path is hit. The solution is to simply drop the __exit annotation.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 528bc7808f ("mmc: atmel-mci: Release mmc resources on failure in probe")
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Set MMC_CAP2_NO_PRESCAN_POWERUP and MMC_CAP2_FULL_PWR_CYCLE for
rtsx_pci_sdmmc and rtsx_usb_sdmmc to reflect properties of Realtek
card reader hosts.
Signed-off-by: Roger Tseng <rogerable@realtek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
We find tuning timeout because of the secure erase operation lasts too
long, so don't do tuning when device is busy.
Signed-off-by: Yi Sun <yi.y.sun@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This change takes care of releasing mmc resources on error cases in
probe function which was missing. Also release timer in remove function.
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This change uses managed resource APIs to allocate resources such as,
clk, gpio, io in order to simplify the driver unload or failure cases.
Hence does away with release statements of the same resources in error
labels and remove function.
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Use the much more common pr_warn instead of pr_warning.
Other miscellanea:
o Coalesce formats
o Realign arguments
o Remove extra spaces when coalescing formats
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The same tuning block exists in the dw_mmc h.c and sdhci-msm.c
files. Move these into mmc.c so that they can be shared across
drivers.
Reported-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If we're tuning on a big-endian CPU we'll never determine we properly
tuned the device because we compare the data we received from the
controller with a table that assumes the CPU is little-endian.
Change the table to be an array of bytes instead of 32-bit words
so we can use memcmp() without needing to byte-swap every word
depending on the endianess of the CPU.
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Reviewed-by: Georgi Djakov <gdjakov@mm-sol.com>
Fixes: 415b5a75da "mmc: sdhci-msm: Add platform_execute_tuning implementation"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
As soon as the CD IRQ is requested, it can trigger, since it's an
externally controlled event. If it does, delayed_work host->detect will
be scheduled.
Many host controller probe()s are roughly structured as:
*_probe() {
host = sdhci_pltfm_init();
mmc_of_parse(host->mmc);
rc = sdhci_add_host(host);
if (rc) {
sdhci_pltfm_free();
return rc;
}
In 3.17, CD IRQs can are enabled quite early via *_probe() ->
mmc_of_parse() -> mmc_gpio_request_cd() -> mmc_gpiod_request_cd_irq().
Note that in linux-next, mmc_of_parse() calls mmc_gpio*d*_request_cd()
rather than mmc_gpio_request_cd(), and mmc_gpio*d*_request_cd() doesn't
call mmc_gpiod_request_cd_irq(). However, this issue still exists if
mmc_gpio_request_cd() is called directly before mmc_start_host().
sdhci_add_host() may fail part way through (e.g. due to deferred
probe for a vmmc regulator), and sdhci_pltfm_free() does nothing to
unrequest the CD IRQ nor cancel the delayed_work. sdhci_pltfm_free() is
coded to assume that if sdhci_add_host() failed, then the delayed_work
cannot (or should not) have been triggered.
This can lead to the following with CONFIG_DEBUG_OBJECTS_* enabled, when
kfree(host) is eventually called inside sdhci_pltfm_free():
WARNING: CPU: 2 PID: 6 at lib/debugobjects.c:263 debug_print_object+0x8c/0xb4()
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x18
The object being complained about is host->detect.
There's no need to request the CD IRQ so early; mmc_start_host() already
requests it. For most SDHCI hosts at least, the typical call path that
does this is: *_probe() -> sdhci_add_host() -> mmc_add_host() ->
mmc_start_host(). Therefore, remove the call to mmc_gpiod_request_cd_irq()
from mmc_gpio_request_cd(). This also matches mmc_gpio*d*_request_cd(),
which already doesn't call mmc_gpiod_request_cd_irq().
However, some host controller drivers call mmc_gpio_request_cd() after
mmc_start_host() has already been called, and assume that this will also
call mmc_gpiod_request_cd_irq(). Update those drivers to explicitly call
mmc_gpiod_request_cd_irq() themselves. Ideally, these drivers should be
modified to move their call to mmc_gpio_request_cd() before their call
to mmc_add_host(). However that's too large a change for stable.
This solves the problem (eliminates the kernel error message above),
since it guarantees that the IRQ can't trigger before mmc_start_host()
is called.
The critical point here is that once sdhci_add_host() calls
mmc_add_host() -> mmc_start_host(), sdhci_add_host() is coded not to
fail. In other words, if there's a chance that mmc_start_host() may have
been called, and CD IRQs triggered, and the delayed_work scheduled,
sdhci_add_host() won't fail, and so cleanup is no longer via
sdhci_pltfm_free() (which doesn't free the IRQ or cancel the work queue)
but instead must be via sdhci_remove_host(), which calls mmc_remove_host()
-> mmc_stop_host(), which does free the IRQ and cancel the work queue.
CC: Russell King <linux@arm.linux.org.uk>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
I spent a couple of days with the driver just hanging due to me forgetting to
specify the external crystal frequency, so that clk_get_rate() returned 0 and
thus the loop in tmio_mmc_set_clock() never ended. I don't think that's an
acceptable behavior, so I suggest that the minimum frequency is checked for 0
in tmio_mmc_host_probe().
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Ian Molton <ian.molton@codethink.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Current tmio is using sd_ctrl_read16/write16_rep()
for data transfer.
It works if transfer size was even number,
but, last 1 byte will be ignored if
transfer size was odd number.
This patch adds new tmio_mmc_transfer_data()
and solve this issue.
Tested-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
dw_mci_of_find_slot_node() is only used in dw_mci_of_get_slot_quirks()
if CONFIG_OF is defined, thus there is no need to have a !CONFIG_OF
version of it. Fixes the following compile warning with !CONFIG_OF:
CC [M] drivers/mmc/host/dw_mmc.o
drivers/mmc/host/dw_mmc.c:2223:28: warning: ‘dw_mci_of_find_slot_node’ defined but not used [-Wunused-function]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter