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1e03331d6b
linux/drivers/mmc/host
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Jerome Brunet 1e03331d6b mmc: meson-gx: work around clk-stop issue 
It seems that the mmc clock is also used and required, somehow, by
the controller itself.

It is shown during init, when writing to CFG while the divider is set
to 0 will crash the SoC. During a voltage switch, the controller may
crash and the card may then fail to exit busy state if the clock is
stopped.

To avoid this, it is best to keep the clock running for the controller,
except during rate change. However, we still need to be able to gate
the clock out of the SoC. Let's use the pinmux for this, and fallback
to gpio mode (pulled-down) when we need to gate the clock

Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 15:03:49 +02:00
..
android-goldfish.c mmc: android-goldfish: remove logically dead code in goldfish_mmc_irq() 2017-08-30 14:01:23 +02:00
atmel-mci.c mmc: Convert to using %pOF instead of full_name 2017-08-30 14:01:36 +02:00
au1xmmc.c mmc: host: drop owner assignment from platform_drivers 2014-10-20 16:20:56 +02:00
bcm2835.c mmc: bcm2835: constify mmc_host_ops structures 2017-08-30 14:01:45 +02:00
bfin_sdh.c mmc: bfin_sdh: remove the MMC_DATA_STREAM flag 2016-02-29 11:02:59 +01:00
cavium-octeon.c mmc: cavium-octeon: Convert to use module_platform_driver 2017-08-30 15:03:38 +02:00
cavium-thunderx.c mmc: cavium: Fix probing race with regulator 2017-05-22 18:01:46 +02:00
cavium.c mmc: Convert to using %pOF instead of full_name 2017-08-30 14:01:36 +02:00
cavium.h mmc: cavium: Add scatter-gather DMA support 2017-04-24 21:42:10 +02:00
cb710-mmc.c
cb710-mmc.h mmc: cb710: use to_platform_device() 2016-01-05 18:04:57 +01:00
davinci_mmc.c mmc: davinci: constify mmc_host_ops structures 2017-08-30 14:01:41 +02:00
dw_mmc-exynos.c mmc: dw_mmc: use the 'slot' instead of 'cur_slot' 2017-06-29 17:14:26 +02:00
dw_mmc-exynos.h mmc: dw_mmc: exynos: Support eMMC's HS400 mode 2015-03-23 14:13:28 +01:00
dw_mmc-k3.c mmc: dw_mmc-k3: add sd support for hi3660 2017-08-30 14:01:56 +02:00
dw_mmc-pci.c mmc: dw_mmc: Remove the public dw_mmc header file 2017-02-13 13:19:59 +01:00
dw_mmc-pltfm.c mmc: dw_mmc: Remove the public dw_mmc header file 2017-02-13 13:19:59 +01:00
dw_mmc-pltfm.h
dw_mmc-rockchip.c mmc: dw_mmc-rockchip: parse rockchip, desired-num-phases from DT 2017-06-29 17:13:59 +02:00
dw_mmc-zx.c mmc: dw_mmc: zx: Initial support for ZX mmc controller 2017-02-13 13:20:03 +01:00
dw_mmc-zx.h mmc: dw_mmc: zx: Initial support for ZX mmc controller 2017-02-13 13:20:03 +01:00
dw_mmc.c mmc: dw_mmc: introduce timer for broken command transfer over scheme 2017-08-30 14:01:57 +02:00
dw_mmc.h mmc: dw_mmc: introduce timer for broken command transfer over scheme 2017-08-30 14:01:57 +02:00
jz4740_mmc.c mmc: jz4740: Let the pinctrl driver configure the pins 2017-05-22 17:20:02 +02:00
Kconfig MMC: Remove HIGHMEM dependency from mmc-spi driver 2017-08-30 14:01:36 +02:00
Makefile mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC 2017-08-30 14:01:21 +02:00
meson-gx-mmc.c mmc: meson-gx: work around clk-stop issue 2017-08-30 15:03:49 +02:00
mmc_spi.c mmc: use new core function mmc_get_dma_dir 2017-04-24 21:41:52 +02:00
mmci_qcom_dml.c scripts/spelling.txt: add "intialization" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
mmci_qcom_dml.h
mmci.c mmc: mmci: constify amba_id 2017-08-30 15:03:46 +02:00
mmci.h mmc: core/mmci: restore pre/post_req behaviour 2017-02-13 13:20:52 +01:00
moxart-mmc.c mmc: moxart: constify mmc_host_ops structures 2017-08-30 14:01:41 +02:00
mtk-sd.c mmc: mediatek: constify mmc_host_ops structures 2017-08-30 14:01:44 +02:00
mvsdio.c mmc: use new core function mmc_get_dma_dir 2017-04-24 21:41:52 +02:00
mvsdio.h
mxcmmc.c mmc: mxcmmc: Handle return value of clk_prepare_enable 2017-08-30 14:01:55 +02:00
mxs-mmc.c mmc: mxs-mmc: Implement CMD23 support 2017-02-13 13:20:27 +01:00
of_mmc_spi.c mmc: of_mmc_spi: fix restricted cast warning of sparse 2017-08-30 14:01:45 +02:00
omap_hsmmc.c mmc: omap_hsmmc: Reduce max_segs for reliability 2017-08-30 14:01:22 +02:00
omap.c mmc: omap: Don't use mmc_card_present() when validating for inserted card 2017-02-13 13:20:23 +01:00
pxamci.c mmc: core: Delete bounce buffer Kconfig option 2017-06-20 10:30:17 +02:00
pxamci.h
renesas_sdhi_core.c mmc: sdhi: use maximum width for the sdbuf register 2017-08-30 14:01:59 +02:00
renesas_sdhi_internal_dmac.c mmc: renesas_sdhi: use extra flag for CBSY usage 2017-08-30 14:01:58 +02:00
renesas_sdhi_sys_dmac.c mmc: renesas_sdhi: enably CBSY bit for RZ platform 2017-08-30 14:01:58 +02:00
renesas_sdhi.h mmc: tmio, renesas-sdhi: add max_{segs, blk_count} to tmio_mmc_data 2017-08-30 14:01:21 +02:00
rtsx_pci_sdmmc.c mmc: use empty initializer list to zero-clear structures 2017-02-13 13:19:54 +01:00
rtsx_usb_sdmmc.c mmc: rtsx_usb_sdmmc: make array 'width' static const 2017-08-30 14:01:27 +02:00
s3cmci.c mmc: s3cmci: constify mmc_host_ops structures 2017-08-30 14:01:40 +02:00
s3cmci.h mmc: s3cmci: Register cpufreq notifier only on S3C24xx 2016-07-25 10:34:46 +02:00
sdhci_f_sdh30.c mmc: sdhci-pltfm: Drop define for SDHCI_PLTFM_PMOPS 2016-07-29 11:29:04 +02:00
sdhci-acpi.c sdhci: acpi: Use new method to get ACPI companion 2017-08-30 14:01:39 +02:00
sdhci-bcm-kona.c mmc: sdhci-bcm-kona: constify sdhci_pltfm_data and sdhci_ops structures 2017-08-30 14:01:52 +02:00
sdhci-brcmstb.c mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume 2017-08-30 15:03:44 +02:00
sdhci-cadence.c mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume 2017-08-30 15:03:45 +02:00
sdhci-cns3xxx.c mmc: sdhci-pltfm: Drop define for SDHCI_PLTFM_PMOPS 2016-07-29 11:29:04 +02:00
sdhci-dove.c mmc: sdhci-pltfm: Drop define for SDHCI_PLTFM_PMOPS 2016-07-29 11:29:04 +02:00
sdhci-esdhc-imx.c mmc: sdhci-esdhc-imx: Remove the ENGcm07207 workaround 2017-06-20 10:30:34 +02:00
sdhci-esdhc.h mmc: sdhci-of-esdhc: support ESDHC_CAPABILITIES_1 accessing 2017-08-30 15:03:36 +02:00
sdhci-iproc.c mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read 2017-05-22 18:18:04 +02:00
sdhci-msm.c mmc: sdhci-msm: set sdma_boundary to zero 2017-08-30 14:01:54 +02:00
sdhci-of-arasan.c mmc: sdhci-of-arasan: constify sdhci_pltfm_data and sdhci_ops structures 2017-08-30 14:01:53 +02:00
sdhci-of-at91.c mmc: sdhci-of-at91: set clocks and presets after resume from deepest PM 2017-08-30 14:01:31 +02:00
sdhci-of-esdhc.c mmc: sdhci-of-esdhc: support ESDHC_CAPABILITIES_1 accessing 2017-08-30 15:03:36 +02:00
sdhci-of-hlwd.c mmc: sdhci-pltfm: Drop define for SDHCI_PLTFM_PMOPS 2016-07-29 11:29:04 +02:00
sdhci-pci-core.c mmc: sdhci-pci: use generic sdhci_set_bus_width() 2017-08-30 15:03:35 +02:00
sdhci-pci-data.c mmc: sdhci-pci: Use ACPI DSM to get driver strength for some Intel devices 2017-04-24 21:41:28 +02:00
sdhci-pci-o2micro.c mmc: sdhci-pci: Let suspend/resume callbacks replace default callbacks 2017-04-24 21:41:38 +02:00
sdhci-pci-o2micro.h mmc: sdhci-pci: Make sdhci_pci_o2_fujin2_pci_init() static 2015-10-26 16:00:05 +01:00
sdhci-pci.h mmc: sdhci-pci: Add support for Intel CNP 2017-06-20 10:30:38 +02:00
sdhci-pic32.c mmc: sdhci: constify sdhci_pltfm_data structures 2017-08-30 14:01:51 +02:00
sdhci-pltfm.c mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume 2017-08-30 15:03:45 +02:00
sdhci-pltfm.h mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume 2017-08-30 15:03:45 +02:00
sdhci-pxav2.c mmc: sdhci-pxav2: switch to managed clk and sdhci_pltfm_unregister() 2017-08-30 15:03:44 +02:00
sdhci-pxav3.c mmc: sdhci: constify sdhci_pltfm_data structures 2017-08-30 14:01:51 +02:00
sdhci-s3c.c mmc: sdhci-s3c: use generic sdhci_set_bus_width() 2017-08-30 15:03:35 +02:00
sdhci-sirf.c mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume 2017-08-30 15:03:44 +02:00
sdhci-spear.c mmc: sdhci: Let drivers decide whether to use mmc_retune_needed() with pm 2017-04-24 21:41:26 +02:00
sdhci-st.c mmc: sdhci-st: explicitly request exclusive reset control 2017-08-30 14:01:37 +02:00
sdhci-tegra.c mmc: sdhci-tegra: use generic sdhci_set_bus_width() 2017-08-30 15:03:35 +02:00
sdhci-xenon-phy.c mmc: sdhci-xenon: Support HS400 Enhanced Strobe feature 2017-08-30 15:03:43 +02:00
sdhci-xenon.c mmc: sdhci-xenon: Add Xenon SDHCI specific system-level PM support 2017-08-30 14:01:57 +02:00
sdhci-xenon.h mmc: sdhci-xenon: Support HS400 Enhanced Strobe feature 2017-08-30 15:03:43 +02:00
sdhci.c mmc: sdhci: Add quirk to indicate MMC_RSP_136 has CRC 2017-08-30 15:03:43 +02:00
sdhci.h mmc: sdhci: Add quirk to indicate MMC_RSP_136 has CRC 2017-08-30 15:03:43 +02:00
sdricoh_cs.c mmc: sdricoh_cs: constify mmc_host_ops structures 2017-08-30 14:01:44 +02:00
sh_mmcif.c mmc: sh_mmcif: constify mmc_host_ops structures 2017-08-30 14:01:42 +02:00
sunxi-mmc.c mmc: sunxi: Fix clock rate passed to sunxi_mmc_clk_set_phase 2017-08-30 14:02:00 +02:00
tifm_sd.c mmc: Convert pr_warning to pr_warn 2014-09-24 10:13:09 +02:00
tmio_mmc_core.c mmc: tmio: don't wait on R-Car2+ when handling the clock 2017-08-30 14:01:26 +02:00
tmio_mmc.c mmc: tmio: improve checkpatch cleanness 2017-06-20 10:30:50 +02:00
tmio_mmc.h mmc: tmio: no magic values when enabling DMA 2017-08-30 14:01:25 +02:00
toshsd.c mmc: toshsd: constify mmc_host_ops structures 2017-08-30 14:01:42 +02:00
toshsd.h mmc: add Toshiba PCI SD controller driver 2014-11-26 14:30:58 +01:00
usdhi6rol0.c mmc: usdhi6rol0: constify mmc_host_ops structures 2017-08-30 14:01:43 +02:00
ushc.c mmc: ushc: fix NULL-deref at probe 2017-03-16 15:31:27 +01:00
via-sdmmc.c mmc: host: via-sdmmc: constify pci_device_id. 2017-08-30 14:01:35 +02:00
vub300.c mmc: vub300: constify usb_device_id 2017-08-30 14:01:58 +02:00
wbsd.c mmc: wbsd: remove CONFIG_MMC_DEBUG from the driver 2017-08-30 14:01:35 +02:00
wbsd.h
wmt-sdmmc.c mmc: wmt-sdmmc: Handle return value of clk_prepare_enable 2017-08-30 14:01:55 +02:00