On 28 August 2017 at 16:29, Jerome Brunet <jbrunet@xxxxxxxxxxxx> 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 > gxl-s905x-libretech-cc > > Changes since v2 [1]: > * 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 > rework. > > 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. Thanks! Kind regards Uffe > > Changes since v1 [0]: > * Reorder patches to have fixes first, then rework and finally > enhancements. > * Use CCF to manage clock phases > > [0]: https://lkml.kernel.org/r/20170804174353.16486-1-jbrunet@xxxxxxxxxxxx > [1]: https://lkml.kernel.org/r/20170821160301.21899-1-jbrunet@xxxxxxxxxxxx > > 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(-) > > -- > 2.9.5 > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
