tree d1d82e018cb8b85d7f0ddb102667b676fe891237
parent 9a9e606692ef3447cb2a9a82595330aea7a6e661
author Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com> 1484665128 +0100
committer Jaehoon Chung <jh80.chung@samsung.com> 1485153462 +0900

mmc: sdhci: Distinguish between base clock and maximum peripheral frequency

The sdhci controller assumes that the base clock frequency is fully supported by
the peripheral and doesn't support hardware limitations. The Linux kernel
distinguishes between base clock (max_clk) of the host controller and maximum
frequency (f_max) of the card interface. Use the same differentiation and allow
the platform to constrain the peripheral interface.

Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>