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

mmc: sdhci-xenon: add set_power callback

2017-09-07T06:37:16+00:00

commit 99c14fc360dbbb583a03ab985551b12b5c5ca4f1 upstream. Xenon sdh controller requests proper SD bus voltage select bits programmed even with vmmc power supply. Any reserved value(100b-000b) programmed in this field will lead to controller ignore SD bus power bit and keep its value at zero. Add set_power callback to handle this. Signed-off-by: Zhoujie Wu Acked-by: Adrian Hunter Tested-by: Gregory CLEMENT Fixes: 3a3748dba881 ("mmc: sdhci-xenon: Add Marvell Xenon SDHC core functionality") Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

mmc: dw_mmc: Use device_property_read instead of of_property_read

2017-08-11T15:33:50+00:00

commit 852ff5fea9eb6a9799f1881d6df2cd69a9e6eed5 upstream. Using the device_property interfaces allows the dw_mmc driver to work on platforms which run on either device tree or ACPI. Signed-off-by: David Woods Reviewed-by: Chris Metcalf Acked-by: Jaehoon Chung Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

mmc: sdhci-of-at91: force card detect value for non removable devices

2017-08-11T15:33:50+00:00

commit 7a1e3f143176e8ebdb2f5a9b3b47abc18b879d90 upstream. When the device is non removable, the card detect signal is often used for another purpose i.e. muxed to another SoC peripheral or used as a GPIO. It could lead to wrong behaviors depending the default value of this signal if not muxed to the SDHCI controller. Fixes: bb5f8ea4d514 ("mmc: sdhci-of-at91: introduce driver for the Atmel SDMMC") Signed-off-by: Ludovic Desroches Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

mmc: tmio-mmc: fix bad pointer math

2017-08-06T16:21:11+00:00

commit 9c284c41c0886f09e75c323a16278b6d353b0b4a upstream. The existing code gives an incorrect pointer value. The buffer pointer 'buf' was of type unsigned short *, and 'count' was a number in bytes. A cast of buf should have been used. However, instead of casting, just change the code to use u32 pointers. Reported-by: Dan Carpenter Fixes: 8185e51f358a: ("mmc: tmio-mmc: add support for 32bit data port") Signed-off-by: Chris Brandt Reviewed-by: Geert Uytterhoeven Acked-by: Wolfram Sang Cc: Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

mmc: sunxi: Keep default timing phase settings for new timing mode

2017-08-06T16:21:07+00:00

commit 26cb2be4c7c42644ccd147c786edb9006300ee56 upstream. The register for the "new timing mode" also has bit fields for setting output and sample timing phases. According to comments in Allwinner's BSP kernel, the default values are good enough. Keep the default values already in the hardware when setting new timing mode, instead of overwriting the whole register. Fixes: 9a37e53e451e ("mmc: sunxi: Enable the new timings for the A64 MMC controllers") Signed-off-by: Chen-Yu Tsai Acked-by: Maxime Ripard Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

mmc: meson-gx: work around broken SDIO with certain WiFi chips

2017-06-12T06:58:16+00:00

There have been reports about SDIO failing with certain WiFi chips in descriptor chain mode. SD / eMMC are working fine. So let's fall back to bounce buffer mode for command SD_IO_RW_EXTENDED. This was reported to fix the error. Fixes: 79ed05e329c3 "mmc: meson-gx: add support for descriptor chain mode" Signed-off-by: Heiner Kallweit Tested-by: Martin Blumenstingl Signed-off-by: Ulf Hansson

mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read

2017-05-22T16:18:04+00:00

The stingray SDHCI hardware supports ACMD12 and automatically issues after multi block transfer completed. If ACMD12 in SDHCI is disabled, spurious tx done interrupts are seen on multi block read command with below error message: Got data interrupt 0x00000002 even though no data operation was in progress. This patch uses SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 to enable ACM12 support in SDHCI hardware and suppress spurious interrupt. Signed-off-by: Srinath Mannam Reviewed-by: Ray Jui Reviewed-by: Scott Branden Acked-by: Adrian Hunter Fixes: b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver") Cc: Signed-off-by: Ulf Hansson

mmc: cavium: Fix probing race with regulator

2017-05-22T16:01:46+00:00

If the regulator probing is not yet finished this driver might catch a -EPROBE_DEFER. Returning after this condition did not remove the created platform device. On a repeated call to the probe function the of_platform_device_create fails. Calling of_platform_device_destroy after EPROBE_DEFER resolves this bug. Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson

mmc: cavium: Prevent crash with incomplete DT

2017-05-22T16:01:46+00:00

In case the DT specifies neither a regulator nor a gpio for the shared power the driver will crash accessing the regulator. Prevent the crash by checking the regulator before use. Use mmc_regulator_get_supply() instead of open coding the same logic. Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson

mmc: cavium-octeon: Use proper GPIO name for power control

2017-05-19T07:17:44+00:00

The devm_gpiod_get_optional() function appends a "-gpios" to the string passed to it, so if we want to find the "power-gpios" signal, we must pass "power" to this function. Fixes: 01d95843335c ("mmc: cavium: Add MMC support for Octeon SOCs.") Signed-off-by: David Daney [jglauber@cavium.com: removed point after subject line] Signed-off-by: Jan Glauber Signed-off-by: Ulf Hansson