Add interconnect bandwidths for SDHC driver using OPP framework that is required by SDHC driver based on the clock frequency and bus width of the card. Otherwise, the system clocks may run at minimum clock speed and thus affecting the performance. This change is based on Georgi Djakov [RFC] (https://lkml.org/lkml/2018/10/11/499) and Saravana Kannan [PATCH v6] (https://lkml.org/lkml/2019/12/6/740) change from RFC v2 -> v3 changes: - Modified interconnect bandwidth support using OPP framework. - Addressed review comments on v2. Pradeep P V K (2): mmc: sdhci-msm: Add interconnect bus bandwidth scaling support dt-bindings: mmc: sdhci-msm: Add interconnect BW scaling strings .../devicetree/bindings/mmc/sdhci-msm.txt | 18 ++ drivers/mmc/host/sdhci-msm.c | 251 ++++++++++++++++++++- 2 files changed, 265 insertions(+), 4 deletions(-) -- 1.9.1