clk: allow a clk divider with max divisor when zero

[firefly-linux-kernel-4.4.55.git] / include / linux / clk-provider.h

diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 402478ed9933aa85fba0a40f9450ab93b828c1da..699a2507517069f18ae2f88d18682a9d5a8df4f5 100644 (file)
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -361,6 +361,9 @@ struct clk_div_table {
  *     to the closest integer instead of the up one.
  * CLK_DIVIDER_READ_ONLY - The divider settings are preconfigured and should
  *     not be changed by the clock framework.
+ * CLK_DIVIDER_MAX_AT_ZERO - For dividers which are like CLK_DIVIDER_ONE_BASED
+ *     except when the value read from the register is zero, the divisor is
+ *     2^width of the field.
  */
 struct clk_divider {
        struct clk_hw   hw;
@@ -378,6 +381,7 @@ struct clk_divider {
 #define CLK_DIVIDER_HIWORD_MASK                BIT(3)
 #define CLK_DIVIDER_ROUND_CLOSEST      BIT(4)
 #define CLK_DIVIDER_READ_ONLY          BIT(5)
+#define CLK_DIVIDER_MAX_AT_ZERO                BIT(6)
 
 extern const struct clk_ops clk_divider_ops;