| Commit message (Collapse) | Author | Age | Files | Lines |
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A last minute fix applied by Ulf made room for some simplification.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There is no reason to have a public and private header file. Merge them
into a private one, so looking up symbols is less confusing.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Having just one irq handler again, let's include the 'card_status'
function in the main handler which is way more readable. Drop a useless
debug output while here. It should be a dev_dbg in case we ever need it
again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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We removed installation of separate handlers previously, so we can also
remove the separate handlers.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There is no user left in the kernel, so this code can be removed.
(Legacy, non-DT sh_mobile boards have been removed a while ago.) The
diff looks more complicated than it is: The if-block for multiplexed isr
is now the main code path, the rest is removed.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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We won't access an index based array to get our DT config, but create
separate structs instead. So, remove the array which only wastes memory.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Instead of using an mmc specific implementation to deal with indexes
through a BITMAP, let's convert to use the IDA library.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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If the allocation of a new partition fails, let's make sure to also
release the previously picked device index.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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As IDA is more lightweight than IDR, let's convert to use that instead.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
is equivalent to:
IS_ENABLED(CONFIG_LEDS_CLASS)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \
defined(CONFIG_MMC_SDHCI_MODULE))
is equivalent to:
defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \
defined(MODULE))
and it can also be written shortly as:
IS_REACHABLE(CONFIG_LEDS_CLASS)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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SDHCI_SDR104_NEEDS_TUNING was originally named SDHCI_HS200_NEEDS_TUNING
and was added in commit 069c9f142822 ("mmc: host: Adds support for eMMC
4.5 HS200 mode").
That commit conflated SDHCI_SDR50_NEEDS_TUNING and SDHCI_HS200_NEEDS_TUNING
due to what appears to be misplaced parentheses.
Commit 156e14b126ff ("mmc: sdhci: fix caps2 for HS200") made HS200
configuration equivalent to SDR104 configuration, renaming
SDHCI_HS200_NEEDS_TUNING to SDHCI_SDR104_NEEDS_TUNING despite tuning for
HS200 now being non-optional.
The mix-up with SDHCI_SDR50_NEEDS_TUNING remained and became more obvious
after commit 4b6f37d3a379 ("mmc: sdhci: clean up sdhci_execute_tuning()
decision") where the author noted the patch was "reflecting what the
original code was doing, it shows that it may not be what the author
actually intended."
The way the code is currently written, SDHCI_SDR104_NEEDS_TUNING
causes tuning to be done always for SDR50 mode if SDR104 mode is
also supported by the host controller. That makes no sense because
we already have capabilities bit SDHCI_USE_SDR50_TUNING and
corresponding flag SDHCI_SDR50_NEEDS_TUNING for that purpose.
Given the dubious origins of SDHCI_SDR104_NEEDS_TUNING, it seems
reasonable to remove it. The benefit being SDR50 mode will now not
un-nessessarily do tuning.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Swap the call order of sdhci_alloc_host() and platform_get_irq().
It makes sdhci_alloc_host() the last function that can fail in the
sdhci_pltfm_init(). So, we can drop the sdhci_free_host() call from
the failure path.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Call devm_ioremap_resource() right after platform_get_resource().
This saves the error check of platform_get_resource() because
devm_ioremap_resource() checks if the given resource is NULL.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The chain of devm_request_mem_region() and devm_ioremap() can be
replaced with devm_ioremap_resource(). Also, we can drop the error
messages because devm_ioremap_resource() displays similar messages
on error.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Use the managed variant of ioremap().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Use the managed variant of request_mem_region().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The function platform_get_irq() can fail; it returns a negative error
code on failure. A negative IRQ number will make sdhci_add_host() fail
to request IRQ anyway, but it makes sense to let it fail earlier here.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The requirement resource_size >= 0x100 may not necessarily be
reasonable; for example, sdhci-dove appears to sidestep some
registers in sdhci_dove_readw().
Moreover, current code displays an error message for too small
resource size, but still moves forward.
Every DT should be responsible for describing its properties
correctly, so lets's remove this error message from the common
framework.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This if-block is going to call mmc_card_set_blockaddr(), so
mmc_card_blockaddr() right before it is redundant.
I am fixing the block comment style while I am here.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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simple-pwrseq and emmc-pwrseq drivers rely on platform_device
structure from of_find_device_by_node(), this works mostly. But, as there
is no driver associated with this devices, cases like default/init pinctrl
setup would never be performed by pwrseq. This becomes problem when the
gpios used in pwrseq require pinctrl setup.
Currently most of the common pinctrl setup is done in
drivers/base/pinctrl.c by pinctrl_bind_pins().
There are two ways to solve this issue on either convert pwrseq drivers
to a proper platform drivers or copy the exact code from
pcintrl_bind_pins(). I prefer converting pwrseq to proper drivers so that
other cases like setting up clks/parents from dt would also be possible.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This patch adds to_pwrseq_emmc() macro to make the code more readable.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This patch adds to_pwrseq_simple() macro to make the code more readable.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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ifdef's make the code more complicated and harder to read.
Move all the LED code together to reduce the ifdef's to
one place.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Some error paths in sdhci_add_host() simply returned without
cleaning up. Also the return value from mmc_add_host()
was not being checked.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The logic '!mmc.f_max || (mmc.f_max && mmc.f_max > max_clk)'
is equivalent to '!mmc.f_max || mmc.f_max > max_clk'.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Set MMC_CAP_AGGRESSIVE_PM for Broxton host controllers.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Set MMC_CAP_AGGRESSIVE_PM for Broxton host controllers.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk is not used anymore so
remove it.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Disabling the internal clock while configuring the SD card clock can
lead to internal clock stabilization issue and/or unexpected switch to
the base clock when using presets.
A quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST was introduced to fix
these bugs. The cause was assumed to be a too long internal
re-synchronisation but it seems in some cases the delay (even if longer)
doesn't fix this bug. The safest workaround is to not disable/enable the
internal clock during the SD card clock configuration.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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In order to remove the SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST and to
reduce code duplication, put the code relative to the SD clock
configuration in a function which can be used by hosts for the
implementation of the ->set_clock() callback.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There are no need to have two versions of sdhci_runtime_pm_bus_off|on(),
depending on whether CONFIG_PM is set or unset. Thus it's easy to move the
implementation of these functions a bit earlier to avoid the unnecessary
pre-definition of them, so let's do that.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
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A platform_driver does not need to set an owner, it will be populated
by the driver core.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Moreover as SDHCI have its own wrapper functions for runtime PM these
becomes superfluous, so let's remove them as well.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
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The eMMC HW reset may be implemented either via the host ops ->hw_reset()
callback or through DT and the eMMC pwrseq. Additionally some eMMC cards
don't support HW reset.
To allow a reset to be done for the different combinations of mmc hosts
and eMMC/MMC cards, let's implement a fallback via trying a regular power
cycle. This improves the mmc block layer retry mechanism of failing I/O
requests.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
[Ulf: Rewrote changelog]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Cc: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Cc: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Commit 9250aea76bfc ("mmc: core: Enable runtime PM management of host
devices"), made some calls to the runtime PM API from the driver
redundant. Especially those which deals with runtime PM reference
counting, so let's remove them.
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
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When trying to use this driver with the common clock framework, enabling
the clock fails because it was not prepared. This fixes the problem by
calling clk_prepare and clk_enable in a single function. Ditto for
clk_disable_unprepare.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Unwiding from an error in davinci_mmcsd_probe was a mess. Some errors were
not handled and not all paths unwound correctly. Also using devm_ where
possible to simplify things.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Now, no dw_mmc variant drivers use this callback, let's
remove it.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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We combine what dw_mci_exynos_setup_clock does with init
hook to simplify the code
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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We remove setup_clock hook and combine it into
init hook to simplify the code
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Some of Exynos has the Security management Unit(SMU).
This patch adds the function for controlling SMU.
In future, if exynos needs to control SMU, it can be implemented
in "config_smu" function, not "init" function.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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dmaengine_terminate_all is deprecated and should be
replaced by more explicit synchronous and asynchronous
terminate functions. This change is based on the
commit b36f09c3c441 ("dmaengine: Add transfer termination
synchronization support"). Currently dw_mci_stop_dma
may be called under the spinlock, let's migrate
dmaengine_terminate_all to async terminate. This could
avoid the race condition of use-after-free resouce of
dmaengine once slave-dma driver implement the synchronize
method.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Without MMC_CAP_ERASE support, we fail to mount partition
with "discard" option since mmc_queue_setup_discard is limited
for checking mmc_can_erase. Without doing mmc_queue_setup_discard,
blk_queue_discard fails to test QUEUE_FLAG_DISCARD flag, so we get
the following log from f2fs(actually similar to other file system):
mounting with "discard" option, but the device does not support discard
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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