[PATCH v3 00/13] mmc: meson-gx: driver fixups and upgrades
ulf.hansson at linaro.org
Wed Aug 30 06:13:57 PDT 2017
On 28 August 2017 at 16:29, Jerome Brunet <jbrunet at baylibre.com> wrote:
> The patchset features several bugfixes, rework and upgrade for the
> meson-gx MMC driver.
> The main goal is to improve readability and enable new high speed
> modes, such as eMMC DDR52 and sdcard UHS modes up to SDR50 (100Mhz)
> SDR104 is not working with a few cards on the p200 and the
> libretech-cc. I suspect that 200Mhz might be a bit too fast for the PCB
> of these boards, adding noise to the signal and eventually breaking
> the communication with some cards. The same cards are working well on a
> laptop or the nanopi-k2 at 200Mhz.
> This series has been tested on gxbb-p200, gxbb-nanopi-k2 and
> Changes since v2 :
> * Drop patches 1 to 3: Applied.
> * Drop patch 4: Debug stuff which should not have been sent.
> * Added fix to previous patch 3:
> If the clock register is not initialized before registering the clk
> with CCF, the framework will complain about an illegal divider value.
> This had gone unnoticed because it was later fixed by the clock init
> Ulf, I know it is getting late but it would be nice if patch #1 of
> this v3 could go with 3 patches you already applied. The rest can
> wait for the following cycle.
I decided to pick them all, so applied for next!
For patch1, I decided to update the changelog a bit, avoiding to have
a specific fixes tag, becasue the fix might not end up having the same
hash, when/if I rebase my branch.
> Changes since v1 :
> * Reorder patches to have fixes first, then rework and finally
> * Use CCF to manage clock phases
> : https://email@example.com
> : https://firstname.lastname@example.org
> Jerome Brunet (13):
> mmc: meson-gx: initialize sane clk default before clock register
> mmc: meson-gx: cfg init overwrite values
> mmc: meson-gx: rework set_ios function
> mmc: meson-gx: rework clk_set function
> mmc: meson-gx: rework clock init function
> mmc: meson-gx: fix dual data rate mode frequencies
> mmc: meson-gx: work around clk-stop issue
> mmc: meson-gx: simplify interrupt handler
> mmc: meson-gx: implement card_busy callback
> mmc: meson-gx: use CCF to handle the clock phases
> mmc: meson-gx: implement voltage switch callback
> mmc: meson-gx: change default tx phase
> mmc: meson-gx: rework tuning function
> drivers/mmc/host/meson-gx-mmc.c | 710 ++++++++++++++++++++++++++++------------
> 1 file changed, 493 insertions(+), 217 deletions(-)
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