[PATCH v2 0/3] Support UART over MicroSD slot on Transformer T20

[Artur Kowalski]

v2 no longer forces UARTA to SDB/SDD on Transformer 20. Instead
CONFIG_TEGRA_UARTA_MICROSD is used for this purpose. Additionally,
user does not needs to configure additional DT files as that is handled
internally with preprocessor directives.

Changes in v2:
- fixed indentation of preprocessor directives
- added TEGRA_UARTA_MICROSD Kconfig option
- removed .dtsi for enabling UART over microSD
- modified transformer DT to use UARTA and correct pinmux when
  TEGRA_UARTA_MICROSD is enabled; it is enough to flip a single
  switch to enable/disable UART over microSD

Artur Kowalski (3):
  tegra: add funcmux for exposing UART over uSD slot on Tegra 20
  tegra: respect CONFIG_TEGRA_ENABLE_UART* options on Transformer T20
  tegra: allow to expose UART on microSD slot

 arch/arm/dts/tegra20-asus-transformer.dtsi  | 24 +++++++++++++++++++++
 arch/arm/include/asm/arch-tegra20/funcmux.h |  1 +
 arch/arm/mach-tegra/board.c                 |  2 ++
 arch/arm/mach-tegra/tegra20/Kconfig         | 18 ++++++++++++++++
 drivers/pinctrl/tegra/funcmux-tegra20.c     |  9 +++++++-
 include/configs/transformer-t20.h           | 10 +++++++++
 6 files changed, 63 insertions(+), 1 deletion(-)

-- 
2.48.1