Message-Id: <5F5A5FC0-8F91-4D5B-9EF6-AF36FE38B588@goldelico.com>
Date:   Thu, 14 Nov 2019 16:15:44 +0100
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Kalle Valo <kvalo@...eaurora.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        David Sterba <dsterba@...e.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Petr Mladek <pmladek@...e.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Yangtao Li <tiny.windzz@...il.com>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        John Stultz <john.stultz@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-omap <linux-omap@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        linux-wireless <linux-wireless@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>, kernel@...a-handheld.com
Subject: Re: [PATCH v3 00/12] OpenPandora: make wl1251 connected to mmc3 sdio port of OpenPandora work again

Hi Ulf,

> Am 14.11.2019 um 15:18 schrieb Ulf Hansson <ulf.hansson@...aro.org>:
> 
> On Thu, 7 Nov 2019 at 11:31, H. Nikolaus Schaller <hns@...delico.com> wrote:
>> 
>> 
>> * add a revisit note for special wl1251 handling code because it should
>>  be solved more generic in mmc core - suggested by Ulf Hansson <ulf.hansson@...aro.org>
>> * remove init_card callback from platform_data/hsmmc-omap.h - suggested by Ulf Hansson <ulf.hansson@...aro.org>
>> * remove obstructive always-on for vwlan regulator - suggested by Ulf Hansson <ulf.hansson@...aro.org>
>> * rename DT node - suggested by Rob Herring <robh@...nel.org>
>> * fix ARM: dts: subject prefix - suggested by Tony Lindgren <tony@...mide.com>
>> * also remove omap2_hsmmc_info and obc-y line in Makefile - suggested by Tony Lindgren <tony@...mide.com>
> 
> No further comments from my side. Let's just agree on how to deal with
> the ti,power-gpio, then I can apply this.

I'd say it can be a separate patch since it does not fix the Pandora
issues, but is a new and independent optimization.

And in case someone complains and uses it for some out-of tree purpose
it can be discussed or even be reverted easier if it is a separate patch.

I can do it in the next days.

> Thanks a lot for fixing all this mess!

I hope the users also appreciate our work.

Best regards,
Nikolaus

> 
> Kind regards
> Uffe
> 
>> 
>> PATCH V2 2019-10-19 20:41:47:
>> * added acked-by for wl1251 patches - Kalle Valo <kvalo@...eaurora.org>
>> * really removed old pdata-quirks code (not through #if 0)
>> * splited out a partial revert of
>>        efdfeb079cc3b ("regulator: fixed: Convert to use GPIO descriptor only")
>>  because that was introduced after v4.19 and stops the removal of
>>  the pdata-quirks patch from cleanly applying to v4.9, v4.14, v4.19
>>  - reported by Sasha Levin <sashal@...nel.org>
>> * added a new patch to remove old omap hsmmc since pdata quirks
>>  were last user - suggested by Tony Lindgren <tony@...mide.com>
>> 
>> PATCH V1 2019-10-18 22:25:39:
>> Here we have a set of scattered patches to make the OpenPandora WiFi work again.
>> 
>> v4.7 did break the pdata-quirks which made the mmc3 interface
>> fail completely, because some code now assumes device tree
>> based instantiation.
>> 
>> Fixes: 81eef6ca9201 ("mmc: omap_hsmmc: Use dma_request_chan() for requesting DMA channel")
>> 
>> v4.11 did break the sdio qirks for wl1251 which made the driver no longer
>> load, although the device was found as an sdio client.
>> 
>> Fixes: 884f38607897 ("mmc: core: move some sdio IDs out of quirks file")
>> 
>> To solve these issues:
>> * we convert mmc3 and wl1251 initialization from pdata-quirks
>>  to device tree
>> * we make the wl1251 driver read properties from device tree
>> * we fix the mmc core vendor ids and quirks
>> * we fix the wl1251 (and wl1271) driver to use only vendor ids
>>  from header file instead of (potentially conflicting) local
>>  definitions
>> 
>> 
>> H. Nikolaus Schaller (12):
>>  Documentation: dt: wireless: update wl1251 for sdio
>>  net: wireless: ti: wl1251 add device tree support
>>  ARM: dts: pandora-common: define wl1251 as child node of mmc3
>>  mmc: host: omap_hsmmc: add code for special init of wl1251 to get rid
>>    of pandora_wl1251_init_card
>>  omap: pdata-quirks: revert pandora specific gpiod additions
>>  omap: pdata-quirks: remove openpandora quirks for mmc3 and wl1251
>>  omap: remove omap2_hsmmc_info in old hsmmc.[ch] and update Makefile
>>  mmc: host: omap-hsmmc: remove init_card pdata callback from pdata
>>  mmc: sdio: fix wl1251 vendor id
>>  mmc: core: fix wl1251 sdio quirks
>>  net: wireless: ti: wl1251 use new SDIO_VENDOR_ID_TI_WL1251 definition
>>  net: wireless: ti: remove local VENDOR_ID and DEVICE_ID definitions
>> 
>> .../bindings/net/wireless/ti,wl1251.txt       |  26 +++
>> arch/arm/boot/dts/omap3-pandora-common.dtsi   |  36 +++-
>> arch/arm/mach-omap2/Makefile                  |   3 -
>> arch/arm/mach-omap2/common.h                  |   1 -
>> arch/arm/mach-omap2/hsmmc.c                   | 171 ------------------
>> arch/arm/mach-omap2/hsmmc.h                   |  32 ----
>> arch/arm/mach-omap2/pdata-quirks.c            | 105 -----------
>> drivers/mmc/core/quirks.h                     |   7 +
>> drivers/mmc/host/omap_hsmmc.c                 |  30 ++-
>> drivers/net/wireless/ti/wl1251/sdio.c         |  23 ++-
>> drivers/net/wireless/ti/wlcore/sdio.c         |   8 -
>> include/linux/mmc/sdio_ids.h                  |   2 +
>> include/linux/platform_data/hsmmc-omap.h      |   3 -
>> 13 files changed, 111 insertions(+), 336 deletions(-)
>> delete mode 100644 arch/arm/mach-omap2/hsmmc.c
>> delete mode 100644 arch/arm/mach-omap2/hsmmc.h
>> 
>> --
>> 2.23.0
>> 

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