- 02 May, 2016 40 commits
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Masahiro Yamada authored
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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Masahiro Yamada authored
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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Masahiro Yamada authored
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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Masahiro Yamada authored
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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Srinivas Kandagatla authored
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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Srinivas Kandagatla authored
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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Srinivas Kandagatla authored
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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Adrian Hunter authored
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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Adrian Hunter authored
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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Adrian Hunter authored
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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Adrian Hunter authored
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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Adrian Hunter authored
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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Ludovic Desroches authored
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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Ludovic Desroches authored
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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Ludovic Desroches authored
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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Ulf Hansson authored
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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Masahiro Yamada authored
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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Ulf Hansson authored
Commit 9250aea7 ("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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Gwendal Grignou authored
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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Ulf Hansson authored
Commit 9250aea7 ("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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Ulf Hansson authored
Commit 9250aea7 ("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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Ulf Hansson authored
Commit 9250aea7 ("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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Ulf Hansson authored
Commit 9250aea7 ("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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Ulf Hansson authored
Commit 9250aea7 ("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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Ulf Hansson authored
Commit 9250aea7 ("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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Ulf Hansson authored
Commit 9250aea7 ("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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David Lechner authored
The davinci_mmc driver no longer uses platform resources for getting dma channels. Instead lookup is now done using dma_slave_map. Signed-off-by: David Lechner <david@lechnology.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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David Lechner authored
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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David Lechner authored
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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Shawn Lin authored
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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Shawn Lin authored
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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Shawn Lin authored
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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Jaehoon Chung authored
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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Shawn Lin authored
EVENT_XFER_ERROR isn't been used now, so it can be removed. 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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Shawn Lin authored
dmaengine_terminate_all is deprecated and should be replaced by more explicit synchronous and asynchronous terminate functions. This change is based on the commit b36f09c3 ("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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Shawn Lin authored
Try to fix the warning reported by: scripts/kernel-doc -man -v include/linux/mmc/dw_mmc.h > /dev/null warning: No description found for parameter 'irq_lock' warning: No description found for parameter 'stop_abort' warning: No description found for parameter 'prev_blksz' warning: No description found for parameter 'timing' warning: No description found for parameter 'ring_size' warning: No description found for parameter 'dms' warning: No description found for parameter 'phy_regs' warning: No description found for parameter 'fifoth_val' warning: No description found for parameter 'vqmmc_enabled' warning: No description found for parameter 'cmd11_timer' warning: Excess struct/union/enum/typedef member 'card_tasklet' description in 'dw_mci' 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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Shawn Lin authored
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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Shawn Lin authored
dw_mci_rockchip_pmops just copy-paste what dw_mci_pltfm_pmops have done. 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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Wolfram Sang authored
Implement voltage switch, supporting modes up to SDR-50. Based on work by Shinobu Uehara, Rob Taylor, William Towle and Ian Molton. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Wolfram Sang authored
While here, refactor the comments so that they are before the declaration they are referring to. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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