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[0/3] mmc: meson-gx: fixes for v4.14

Message ID 20171002122743.32334-1-jbrunet@baylibre.com
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Series mmc: meson-gx: fixes for v4.14 | expand

Message

Jerome Brunet Oct. 2, 2017, 12:27 p.m. UTC
This patchset fixes the issues reported by Heiner [0] with the odroid-c2.
In a nutshell, this series does the following:

* Make sure the mmc clock rate is not set higher than what is requested
* Reset the tuning values on mmc power cycle instead of POWER_ON
* Add tuning of the tx phase to the tuning function.

This fixes the problem seen on the odroid-c2, both for hs200 and hs400.
To check for regression, this series has also been tested on the gxl
libretech-cc

Ulf, could you please pick this as fixes for v4.14 ?

[0]: https://lkml.kernel.org/r/e2171288-84ef-82db-2efc-300935e6c062@gmail.com

Jerome Brunet (3):
  mmc: meson-gx: make sure the clock is rounded down
  mmc: meson-gx: fix rx phase reset
  mmc: meson-gx: include tx phase in the tuning process

 drivers/mmc/host/meson-gx-mmc.c | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

-- 
2.13.5

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Comments

Ulf Hansson Oct. 4, 2017, 8:59 a.m. UTC | #1
On 2 October 2017 at 14:27, Jerome Brunet <jbrunet@baylibre.com> wrote:
> This patchset fixes the issues reported by Heiner [0] with the odroid-c2.

> In a nutshell, this series does the following:

>

> * Make sure the mmc clock rate is not set higher than what is requested

> * Reset the tuning values on mmc power cycle instead of POWER_ON

> * Add tuning of the tx phase to the tuning function.

>

> This fixes the problem seen on the odroid-c2, both for hs200 and hs400.

> To check for regression, this series has also been tested on the gxl

> libretech-cc

>

> Ulf, could you please pick this as fixes for v4.14 ?


Thanks, applied for fixes!

Kind regards
Uffe

>

> [0]: https://lkml.kernel.org/r/e2171288-84ef-82db-2efc-300935e6c062@gmail.com

>

> Jerome Brunet (3):

>   mmc: meson-gx: make sure the clock is rounded down

>   mmc: meson-gx: fix rx phase reset

>   mmc: meson-gx: include tx phase in the tuning process

>

>  drivers/mmc/host/meson-gx-mmc.c | 26 ++++++++++++++++++++++----

>  1 file changed, 22 insertions(+), 4 deletions(-)

>

> --

> 2.13.5

>

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