linux-kernel - Re: [PATCH v2 00/16] omap_hsmmc: regulator usage cleanup and fixes

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Message-ID: <55D5C9B3.80802@ti.com>
Date:	Thu, 20 Aug 2015 18:06:03 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	<ulf.hansson@...aro.org>, <afenkart@...il.com>, <tony@...mide.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>, <linux-omap@...r.kernel.org>
CC:	<nsekhar@...com>
Subject: Re: [PATCH v2 00/16] omap_hsmmc: regulator usage cleanup and fixes

Hi,

On Monday 03 August 2015 05:56 PM, Kishon Vijay Abraham I wrote:
> Changes from v1:
> *) return on -EPROBE_DEFER and other fatal errors. (Don't return only
>    if the return value is -ENODEV)
> *) Remove the beagle x15 dts patch. It can be part of a different
>    series.
> *) Avoid using regulator_is_enabled for vqmmc since if the regulator
>    is shared and the other users are not using regulator_is_enabled
>    then there can be unbalanced regulator_enable/regulator_disable
> 
> This patch series does the following
> *) Uses devm_regulator_get_optional() for vmmc and then removes the
>    CONFIG_REGULATOR check altogether.
> *) return on -EPROBE_DEFER and any other fatal errors
> *) enable/disable vmmc_aux regulator based on prior state
> 
> I've pushed this patch series to
> git://git.ti.com/linux-phy/linux-phy.git mmc_regulator_cleanup_fixes_v2
> 
> Please note the branch also has the pbias fixes [1] & [2].
> [1] -> https://lkml.org/lkml/2015/7/27/358
> [2] -> https://lkml.org/lkml/2015/7/27/391
> 
> This series is in preparation for implementing the voltage switch
> sequence so that UHS cards can be supported.
> 
> Did basic read/write test in J6, J6 Eco, Beagle-x15, AM437x EVM,
> Beaglebone black, OMAP5 uEVM and OMAP4 PANDA.

I have now done read/write test in omap3 beagle-xm with this series!

Thanks
Kishon
> 
> Kishon Vijay Abraham I (15):
>   mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc
>   mmc: host: omap_hsmmc: return on fatal errors from omap_hsmmc_reg_get
>   mmc: host: omap_hsmmc: cleanup omap_hsmmc_reg_get()
>   mmc: host: omap_hsmmc: use the ocrmask provided by the vmmc regulator
>   mmc: host: omap_hsmmc: use mmc_host's vmmc and vqmmc
>   mmc: host: omap_hsmmc: remove unnecessary pbias set_voltage
>   mmc: host: omap_hsmmc: return error if any of the regulator APIs fail
>   mmc: host: omap_hsmmc: add separate functions for enable/disable
>     supply
>   mmc: host: omap_hsmmc: add separate function to set pbias
>   mmc: host: omap_hsmmc: avoid pbias regulator enable on power off
>   mmc: host: omap_hsmmc: don't use ->set_power to set initial regulator
>     state
>   mmc: host: omap_hsmmc: enable/disable vmmc_aux regulator based on
>     previous state
>   mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status
>   mmc: host: omap_hsmmc: use ios->vdd for setting vmmc voltage
>   mmc: host: omap_hsmmc: remove CONFIG_REGULATOR check
> 
> Roger Quadros (1):
>   mmc: host: omap_hsmmc: use "mmc_of_parse_voltage" to get ocr_avail
> 
>  .../devicetree/bindings/mmc/ti-omap-hsmmc.txt      |    2 +
>  drivers/mmc/host/omap_hsmmc.c                      |  340 +++++++++++++-------
>  2 files changed, 224 insertions(+), 118 deletions(-)
> 
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