kernel/linux.git/drivers/mmc/host/omap.c, branch v5.16

mmc: omap: Use new tasklet API

2021-02-08T12:00:31+00:00

This converts the driver to use the new tasklet API introduced in commit 12cc923f1ccc ("tasklet: Introduce new initialization API") Signed-off-by: Emil Renner Berthing Link: https://lore.kernel.org/r/20210204151847.91353-5-kernel@esmil.dk Signed-off-by: Ulf Hansson

mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4

2020-09-07T12:20:17+00:00

This is like commit 3d3451124f3d ("mmc: sdhci-msm: Prefer asynchronous probe") but applied to a whole pile of drivers. This batch converts the drivers that appeared to be around in the v4.4 timeframe. Signed-off-by: Douglas Anderson Reviewed-by: Wolfram Sang Tested-by: Wolfram Sang # SH_MMCIF Tested-by: Thierry Reding Link: https://lore.kernel.org/r/20200903162412.1.Id501e96fa63224f77bb86b2135a5e8324ffb9c43@changeid Signed-off-by: Ulf Hansson

mmc: host: Drop redundant MMC_CAP_ERASE

2020-05-28T09:22:14+00:00

The MMC_CAP_ERASE bit is no longer used by the mmc core as erase, discard and trim operations are now always supported. Therefore, drop the bit and move all mmc hosts away from using it. Signed-off-by: Ulf Hansson Reviewed-by: Rui Miguel Silva Link: https://lore.kernel.org/r/20200508112902.23575-1-ulf.hansson@linaro.org Reviewed-by: Linus Walleij

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

mmc: omap: fix the maximum timeout setting

2019-02-25T07:40:58+00:00

When running OMAP1 kernel on QEMU, MMC access is annoyingly noisy: MMC: CTO of 0xff and 0xfe cannot be used! MMC: CTO of 0xff and 0xfe cannot be used! MMC: CTO of 0xff and 0xfe cannot be used! [ad inf.] Emulator warnings appear to be valid. The TI document SPRU680 [1] ("OMAP5910 Dual-Core Processor MultiMedia Card/Secure Data Memory Card (MMC/SD) Reference Guide") page 36 states that the maximum timeout is 253 cycles and "0xff and 0xfe cannot be used". Fix by using 0xfd as the maximum timeout. Tested using QEMU 2.5 (Siemens SX1 machine, OMAP310), and also checked on real hardware using Palm TE (OMAP310), Nokia 770 (OMAP1710) and Nokia N810 (OMAP2420) that MMC works as before. [1] http://www.ti.com/lit/ug/spru680/spru680.pdf Fixes: 730c9b7e6630f ("[MMC] Add OMAP MMC host driver") Signed-off-by: Aaro Koskinen Signed-off-by: Ulf Hansson

MMC: OMAP: fix broken MMC on OMAP15XX/OMAP5910/OMAP310

2018-12-04T13:34:51+00:00

Since v2.6.22 or so there has been reports [1] about OMAP MMC being broken on OMAP15XX based hardware (OMAP5910 and OMAP310). The breakage seems to have been caused by commit 46a6730e3ff9 ("mmc-omap: Fix omap to use MMC_POWER_ON") that changed clock enabling to be done on MMC_POWER_ON. This can happen multiple times in a row, and on 15XX the hardware doesn't seem to like it and the MMC just stops responding. Fix by memorizing the power mode and do the init only when necessary. Before the patch (on Palm TE): mmc0: new SD card at address b368 mmcblk0: mmc0:b368 SDC 977 MiB mmci-omap mmci-omap.0: command timeout (CMD18) mmci-omap mmci-omap.0: command timeout (CMD13) mmci-omap mmci-omap.0: command timeout (CMD13) mmci-omap mmci-omap.0: command timeout (CMD12) [x 6] mmci-omap mmci-omap.0: command timeout (CMD13) [x 6] mmcblk0: error -110 requesting status mmci-omap mmci-omap.0: command timeout (CMD8) mmci-omap mmci-omap.0: command timeout (CMD18) mmci-omap mmci-omap.0: command timeout (CMD13) mmci-omap mmci-omap.0: command timeout (CMD13) mmci-omap mmci-omap.0: command timeout (CMD12) [x 6] mmci-omap mmci-omap.0: command timeout (CMD13) [x 6] mmcblk0: error -110 requesting status mmcblk0: recovery failed! print_req_error: I/O error, dev mmcblk0, sector 0 Buffer I/O error on dev mmcblk0, logical block 0, async page read mmcblk0: unable to read partition table After the patch: mmc0: new SD card at address b368 mmcblk0: mmc0:b368 SDC 977 MiB mmcblk0: p1 The patch is based on a fix and analysis done by Ladislav Michl. Tested on OMAP15XX/OMAP310 (Palm TE), OMAP1710 (Nokia 770) and OMAP2420 (Nokia N810). [1] https://marc.info/?t=123175197000003&r=1&w=2 Fixes: 46a6730e3ff9 ("mmc-omap: Fix omap to use MMC_POWER_ON") Reported-by: Ladislav Michl Reported-by: Andrzej Zaborowski Tested-by: Ladislav Michl Acked-by: Tony Lindgren Signed-off-by: Aaro Koskinen Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson

mmc: Convert timers to use timer_setup()

2017-11-02T14:20:28+00:00

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Ludovic Desroches Cc: Ulf Hansson Cc: Jaehoon Chung Cc: Carlo Caione Cc: Kevin Hilman Cc: Nicolas Pitre Cc: Jarkko Lavinen Cc: Adrian Hunter Cc: Alex Dubov Cc: Bruce Chang Cc: Harald Welte Cc: Tony Olech Cc: Pierre Ossman Cc: Linus Walleij Cc: Paul Cercueil Cc: Heiner Kallweit Cc: Shawn Lin Cc: Arvind Yadav Cc: Allen Cc: linux-mmc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Kees Cook Signed-off-by: Ulf Hansson

mmc: omap: Don't use mmc_card_present() when validating for inserted card

2017-02-13T12:20:23+00:00

The mmc_card_present() function helps the mmc core to track an internal state of the card device. More importantly, it's not intended to be used by mmc host drivers to check for an inserted card. Therefore, let's stop using it and instead rely on checking for a valid pointer to a struct mmc_card, as it should be good enough. Cc: linux-omap@vger.kernel.org Cc: Tony Lindgren Cc: Jarkko Nikula Signed-off-by: Ulf Hansson Acked-by: Tony Lindgren Reviewed-by: Linus Walleij

mmc: omap: Initialize dma_slave_config to avoid random data in it's fields

2016-09-14T11:59:33+00:00

It is wrong to use uninitialized dma_slave_config and configure only certain fields as the DMAengine driver might look at non initialized (random data) fields and tries to interpret it. Signed-off-by: Peter Ujfalusi Signed-off-by: Ulf Hansson

mmc: omap: Use dma_request_chan() for requesting DMA channel

2016-05-04T11:12:00+00:00

With the new dma_request_chan() the client driver does not need to look for the DMA resource and it does not need to pass filter_fn anymore. By switching to the new API the driver can now support deferred probing against DMA. Signed-off-by: Peter Ujfalusi CC: Ulf Hansson CC: Jarkko Nikula Signed-off-by: Ulf Hansson