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authorSoren Brinkmann <soren.brinkmann@xilinx.com>2013-07-19 17:16:45 (GMT)
committerMichal Simek <michal.simek@xilinx.com>2013-08-20 05:54:41 (GMT)
commit353dc6c47d67c83f7cc20334f8deb251674e6864 (patch)
tree9a7659b80b911265cd06554929cdd89c02dd1f6e
parent14924ba288921c536a72e71baeb14322ece44b39 (diff)
downloadlinux-353dc6c47d67c83f7cc20334f8deb251674e6864.tar.xz
clk/zynq/pll: Use #defines for fbdiv min/max values
Use more descriptive #defines for the minimum and maximum PLL feedback divider. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
-rw-r--r--drivers/clk/zynq/pll.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/clk/zynq/pll.c b/drivers/clk/zynq/pll.c
index 6daa7b6..3226f54 100644
--- a/drivers/clk/zynq/pll.c
+++ b/drivers/clk/zynq/pll.c
@@ -50,6 +50,9 @@ struct zynq_pll {
#define PLLCTRL_RESET_MASK 1
#define PLLCTRL_RESET_SHIFT 0
+#define PLL_FBDIV_MIN 13
+#define PLL_FBDIV_MAX 66
+
/**
* zynq_pll_round_rate() - Round a clock frequency
* @hw: Handle between common and hardware-specific interfaces
@@ -63,10 +66,10 @@ static long zynq_pll_round_rate(struct clk_hw *hw, unsigned long rate,
u32 fbdiv;
fbdiv = DIV_ROUND_CLOSEST(rate, *prate);
- if (fbdiv < 13)
- fbdiv = 13;
- else if (fbdiv > 66)
- fbdiv = 66;
+ if (fbdiv < PLL_FBDIV_MIN)
+ fbdiv = PLL_FBDIV_MIN;
+ else if (fbdiv > PLL_FBDIV_MAX)
+ fbdiv = PLL_FBDIV_MAX;
return *prate * fbdiv;
}