diff options
Diffstat (limited to 'drivers/clk/imx/clk-pllv3.c')
| -rw-r--r-- | drivers/clk/imx/clk-pllv3.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c index df91a8244fb4..a7db93030e02 100644 --- a/drivers/clk/imx/clk-pllv3.c +++ b/drivers/clk/imx/clk-pllv3.c @@ -7,6 +7,7 @@ #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/io.h> +#include <linux/iopoll.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/err.h> @@ -25,6 +26,8 @@ #define IMX7_ENET_PLL_POWER (0x1 << 5) #define IMX7_DDR_PLL_POWER (0x1 << 20) +#define PLL_LOCK_TIMEOUT 10000 + /** * struct clk_pllv3 - IMX PLL clock version 3 * @clk_hw: clock source @@ -53,23 +56,14 @@ struct clk_pllv3 { static int clk_pllv3_wait_lock(struct clk_pllv3 *pll) { - unsigned long timeout = jiffies + msecs_to_jiffies(10); u32 val = readl_relaxed(pll->base) & pll->power_bit; /* No need to wait for lock when pll is not powered up */ if ((pll->powerup_set && !val) || (!pll->powerup_set && val)) return 0; - /* Wait for PLL to lock */ - do { - if (readl_relaxed(pll->base) & BM_PLL_LOCK) - break; - if (time_after(jiffies, timeout)) - break; - usleep_range(50, 500); - } while (1); - - return readl_relaxed(pll->base) & BM_PLL_LOCK ? 0 : -ETIMEDOUT; + return readl_relaxed_poll_timeout(pll->base, val, val & BM_PLL_LOCK, + 500, PLL_LOCK_TIMEOUT); } static int clk_pllv3_prepare(struct clk_hw *hw) |