doc: Update sh cpufreq documentation.

The sh cpufreq driver is no longer limited to just the SH-3 and SH-4,
update the documentation to reflect this fact accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 03c773b74bd2..bef19f5bde7f 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -469,8 +469,12 @@ config SH_CPU_FREQ
         depends on CPU_FREQ
         select CPU_FREQ_TABLE
         help
-          This adds the cpufreq driver for SuperH. At present, only
-          the SH-4 is supported.
+          This adds the cpufreq driver for SuperH. Any CPU that supports
+          clock rate rounding through the clock framework can use this
+          driver. While it will make the kernel slightly larger, this is
+          harmless for CPUs that don't support rate rounding. The driver
+          will also generate a notice in the boot log before disabling
+          itself if the CPU in question is not capable of rate rounding.
 
           For details, take a look at <file:Documentation/cpu-freq>.