re: clk: samsung: add infrastructure to register cpu clocks

[Dan Carpenter <dan.carpenter@oracle.com>]

Hello Thomas Abraham,

The patch ddeac8d968d4: "clk: samsung: add infrastructure to register
cpu clocks" from Apr 3, 2015, leads to the following static checker
warning:

	drivers/clk/samsung/clk-cpu.c:164 exynos_cpuclk_pre_rate_change()
	warn: test_bit() takes a bit number

drivers/clk/samsung/clk-cpu.c
   158          /*
   159           * For the selected PLL clock frequency, get the pre-defined divider
   160           * values. If the clock for sclk_hpm is not sourced from apll, then
   161           * the values for DIV_COPY and DIV_HPM dividers need not be set.
   162           */
   163          div0 = cfg_data->div0;
   164          if (test_bit(CLK_CPU_HAS_DIV1, &cpuclk->flags)) {
                             ^^^^^^^^^^^^^^^^
CLK_CPU_HAS_DIV1 is (1 << 0).  We sometimes used it correctly as a mask
and sometimes incorrectly (like here) as a bit number.

   165                  div1 = cfg_data->div1;
   166                  if (readl(base + E4210_SRC_CPU) & E4210_MUX_HPM_MASK)
   167                          div1 = readl(base + E4210_DIV_CPU1) &
   168                                  (E4210_DIV1_HPM_MASK | E4210_DIV1_COPY_MASK);
   169          }


regards,
dan carpenter