MMC core:
 - Fix driver strength selection when selecting hs400es
 - Delete bounce buffer handling:
   This change fixes a problem related to how bounce buffers are being
   allocated. However, instead of trying to fix that, let's just remove
   the mmc bounce buffer code altogether, as it has practically no use.

MMC host:
 - meson-gx: A couple of fixes related to clock/phase/tuning
 - sdhci-xenon: Fix clock resource by adding an optional bus clock
mmc: sdhci-xenon: Fix clock resource by adding an optional bus clock

On Armada 7K/8K we need to explicitly enable the bus clock. The bus clock
is optional because not all the SoCs need them but at least for Armada
7K/8K it is actually mandatory.

The binding documentation is updating accordingly.

Without this patch the kernel hand during boot if the mvpp2.2 network
driver was not present in the kernel. Indeed the clock needed by the
xenon controller was set by the network driver.

Fixes: 3a3748dba881 ("mmc: sdhci-xenon: Add Marvell Xenon SDHC core
functionality)"
CC: Stable <stable@vger.kernel.org>
Tested-by: Zhoujie Wu <zjwu@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
3 files changed