This patch enables clients to specify vectors in device tree format. Clients will no longer need to specify vectors in the boards file. Instead, they can add the bus-scaling related data to their own device-nodes. The clients can then call an API exposed by the bus driver which will build the pdata out of those strings. The registration process using pdata remains unchanged. Signed-off-by: Gagan Mac <gmac@codeaurora.org> (cherry picked from commit bf3676d64aa6007664223c552557ab3d0666f842) Change-Id: Iec994d8949bef9a45a401147c7f2aeebaf748e4f Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>