linux-kernel - [PATCH v4 00/11] Port am335x and am437x devices to sdhci-omap

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Date:   Mon, 6 Jan 2020 16:31:22 +0530
From:   Faiz Abbas <faiz_abbas@...com>
To:     <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-mmc@...r.kernel.org>
CC:     <kishon@...com>, <adrian.hunter@...el.com>, <mark.rutland@....com>,
        <robh+dt@...nel.org>, <ulf.hansson@...aro.org>, <tony@...mide.com>,
        <faiz_abbas@...com>
Subject: [PATCH v4 00/11] Port am335x and am437x devices to sdhci-omap

The following add driver patches for porting TI's am335x and am437x devices to
the sdhci-omap driver.

Patches 1-4 Add Support for external DMA to the sdhci driver.

Patches 5-7 refactor the sdhci_set_timeout() function and use it disable
data timeout interrupt for erase commands

Patches 8-9 port the ti,needs-special-reset property from omap_hsmmc driver.

Patches 10-11 add new compatibles for am335x and am43xx devices to the
sdhci-omap driver.

DT changes will be posted as a separate series.

Tested on: am335x-evm, am335x-boneblack, am335x-bonegreen-wireless,
am335x-sk, am335x-bone, am437x-idk, am43xx-gp-evm, am43xx-epos-evm.

I need some help with testing all other am335x variants and SDIO cards.

Here's a branch for testing: https://github.com/faizinator/linux/tree/sdhci-omap_v4_2

RESEND ALERT: I sent these patches from a new computer yesterday but non
of them appeared in any of the mailing lists. Apologies if you receive a
duplicate series. Please ignore the previous one.

v4:
1. Made the factoring out of initialize_data, block_info and mrqs_done as a
   separate patch
2. Replaced the patch introducing the quirk to disable DTO during erase
   operations to a set_timeout() callback in sdhci-omap
3. Ported the ti,needs-special-reset property from omap_hsmmc to sdhci-omap.
4. Minor style changes.

v3:
1. Dropped patch 1 because the tasklet was removed by Adrian in an
   earlier series.
2. Added dma bindings in sdhci-omap as optional properties.
3. Rebased on top of latest mainline.

v2:
1. sdhci is using two bottom halves. One threaded_rq for card detect and a
   tasklet for finishing mmc requests. Patch 1 removes the tasklet and
   moves its function to the threaded_irq. This enables me to
   terminate_sync() in sdhci_request_done()

2. Factored out common code for between the normal adn external dma case

3. Using existing API sdhci_data_timeout_irq for disabling DTO during
   erase commands.

4. Fixed subject line for dt-bindings patch.

Chunyan Zhang (3):
  dt-bindings: sdhci-omap: Add properties for using external dma
  mmc: sdhci: add support for using external DMA devices
  mmc: sdhci-omap: Add using external dma

Faiz Abbas (8):
  mmc: sdhci: Factor out some operations set to their own functions
  mmc: sdhci: Convert sdhci_set_timeout_irq() to non-static
  mmc: sdhci: Refactor sdhci_set_timeout()
  mmc: sdhci-omap: Disable data timeout interrupt during erase
  dt-bindings: sdhci-omap: Add documentation for ti,needs-special-reset
    property
  mmc: sdhci-omap: Add ti,needs-special-reset property
  dt-bindings: sdhci-omap: Add am335x and am437x specific bindings
  mmc: sdhci-omap: Add am335x and am437x specific compatibles

 .../devicetree/bindings/mmc/sdhci-omap.txt    |  12 +
 drivers/mmc/host/Kconfig                      |   4 +
 drivers/mmc/host/sdhci-omap.c                 |  61 ++-
 drivers/mmc/host/sdhci.c                      | 355 +++++++++++++++---
 drivers/mmc/host/sdhci.h                      |  10 +
 5 files changed, 384 insertions(+), 58 deletions(-)

-- 
2.19.2