clk: vc5: Add support for the input frequency doubler
The VersaClock 6 has an input frequency doubler between the input clock mux and the predivider. Add new capability flag and support for this frequency doubler block into the driver. Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Alexey Firago <alexey_firago@mentor.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: linux-renesas-soc@vger.kernel.org Tested-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> on Salvator-XS with the display LVDS output. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
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