kernel.git/drivers/mmc/core/host.c, branch linux-4.12.y

mmc: core: Use device_property_read instead of of_property_read

2017-08-11T15:33:50Z

commit 73a47a9bb3e2c4a9c553c72456e63ab991b1a4d9 upstream. Using the device_property interfaces allows mmc drivers to work on platforms which run on either device tree or ACPI. Signed-off-by: David Woods Reviewed-by: Chris Metcalf Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

mmc: core: fix error path in mmc_host_alloc

2017-02-13T12:20:48Z

Properly reverse everything if mmc_gpio_alloc(host) fails. Signed-off-by: Heiner Kallweit Signed-off-by: Ulf Hansson

mmc: core: simplify ida handling

2017-02-13T12:20:47Z

ida handling can be simplified by switching to the ida_simple_ functions. Signed-off-by: Heiner Kallweit Signed-off-by: Ulf Hansson

mmc: core: Extend mmc_of_parse() to check for mmc-ddr-3_3v

2017-02-13T12:20:45Z

When mmc_of_parse() finds the binding, it sets the mmc cap, MMC_CAP_3_3V_DDR, which informs the core whether eMMC DDR at 3.3V I/O is supported by the mmc host. Signed-off-by: Ulf Hansson Reviewed-by: Shawn Lin Tested-by: Jan Glauber Tested-by: Stefan Wahren

mmc: core: expose MMC_CAP2_NO_* to dt

2016-07-25T08:34:49Z

The reason for why we expose these to dt is that some of the controller is unable to send special cmd type due to the hw limitation. Signed-off-by: Shawn Lin Signed-off-by: Ulf Hansson

mmc: core: add mmc-hs400-enhanced-strobe support

2016-07-25T08:34:05Z

This patch introduce mmc-hs400-enhanced-strobe for platforms which want to enable enhanced strobe function from DT if the mmc host controller claims to support enhanced strobe. Signed-off-by: Shawn Lin Reviewed-by: Douglas Anderson Tested-by: Jaehoon Chung Signed-off-by: Ulf Hansson

mmc: core: Add a facility to "pause" re-tuning

2016-05-17T14:54:26Z

Re-tuning is not possible when switched to the RPMB partition. However re-tuning should not be needed if re-tuning is done immediately before switching, a small set of operations is done, and then we immediately switch back to the main partition. To ensure that re-tuning can't be done for a short while, add a facility to "pause" re-tuning. The existing facility to hold / release re-tuning is used but it also flags re-tuning as needed to cause re-tuning before the next command (which will be the switch to RPMB). We also need to "unpause" in the recovery path, which is catered for by adding it to mmc_retune_disable(). Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson

mmc: core: Convert from IDR to IDA for host indexes

2016-05-02T08:33:36Z

As IDA is more lightweight than IDR, let's convert to use that instead. Signed-off-by: Ulf Hansson

mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros

2016-04-04T17:41:08Z

PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> ; - >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> ; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov Acked-by: Michal Hocko Signed-off-by: Linus Torvalds

mmc: core: enable mmc host device to suspend/resume asynchronously

2016-02-29T10:02:51Z

This patch enables mmc hosts to suspend/resume asynchronously. This will improve system suspend/resume speed. After applying this patch and enabling all mmc hosts' child devices to suspend/resume asynchronously on ASUS T100TA, the system suspend-to-idle time is reduced from 1645ms to 1107ms, and the system resume time is reduced from 940ms to 914ms. Signed-off-by: Zhonghui Fu Acked-by: Venu Byravarasu Signed-off-by: Ulf Hansson