Commit c77e1c54 authored Apr 18, 2017 by Subhash Jadavani

mmc: core: fix the clock scaling handling



Devfreq's simple ondemand governor isn't calling ->target() callback with
frequency value instead it seems to be passing 0 when it wants the client
to scale down to lowest frequency in the frequency table and passes
UINT_MAX when it wants client to scale up to maximum frequency. Fix the
->target() handler to take this into consideration.

Change-Id: I68b1c527afe398ba3ae1ed02f62a85c58f6d4244
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>

parent 13ce0881

drivers/mmc/core/core.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -474,6 +474,11 @@ static int mmc_devfreq_set_target(struct device *dev,
		if (!clk_scaling->enable)
		goto out;

		if (*freq == UINT_MAX)
		*freq = clk_scaling->freq_table[1];
		else
		*freq = clk_scaling->freq_table[0];

		pr_debug("%s: target freq = %lu (%s)\n", mmc_hostname(host),
		*freq, current->comm);