diff options
| author | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> | 2020-03-11 16:41:13 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2020-05-29 07:06:39 +0300 |
| commit | 907f9291f937463c27e5ca9cb5f1d8eedf9a2738 (patch) | |
| tree | 81d08faa17508d4a678aef95d518dcfe3290f5bb /drivers/clk/clk-hsdk-pll.c | |
| parent | 8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff) | |
| download | linux-907f9291f937463c27e5ca9cb5f1d8eedf9a2738.tar.xz | |
CLK: HSDK: CGU: check if PLL is bypassed first
If PLL is bypassed the EN (enable) bit has no effect on
output clock.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Link: https://lkml.kernel.org/r/20200311134115.13257-2-Eugeniy.Paltsev@synopsys.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-hsdk-pll.c')
| -rw-r--r-- | drivers/clk/clk-hsdk-pll.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/clk/clk-hsdk-pll.c b/drivers/clk/clk-hsdk-pll.c index 97d1e8c35b71..b47a559f3528 100644 --- a/drivers/clk/clk-hsdk-pll.c +++ b/drivers/clk/clk-hsdk-pll.c @@ -172,14 +172,14 @@ static unsigned long hsdk_pll_recalc_rate(struct clk_hw *hw, dev_dbg(clk->dev, "current configuration: %#x\n", val); - /* Check if PLL is disabled */ - if (val & CGU_PLL_CTRL_PD) - return 0; - /* Check if PLL is bypassed */ if (val & CGU_PLL_CTRL_BYPASS) return parent_rate; + /* Check if PLL is disabled */ + if (val & CGU_PLL_CTRL_PD) + return 0; + /* input divider = reg.idiv + 1 */ idiv = 1 + ((val & CGU_PLL_CTRL_IDIV_MASK) >> CGU_PLL_CTRL_IDIV_SHIFT); /* fb divider = 2*(reg.fbdiv + 1) */ |