clk: imx: return correct frequency for Ethernet PLL

The i.MX 7 designs Ethernet PLL provides a 1000MHz reference clock.
Store the reference clock in the clk_pllv3 structure according to
the PLL type.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index c05c43d..4826b3c 100644 (file)
--- a/drivers/clk/imx/clk-pllv3.c
+++ b/drivers/clk/imx/clk-pllv3.c
@@ -44,6 +44,7 @@ struct clk_pllv3 {
        u32             powerdown;
        u32             div_mask;
        u32             div_shift;
+       unsigned long   ref_clock;
 };
 
 #define to_clk_pllv3(_hw) container_of(_hw, struct clk_pllv3, hw)
@@ -286,7 +287,9 @@ static const struct clk_ops clk_pllv3_av_ops = {
 static unsigned long clk_pllv3_enet_recalc_rate(struct clk_hw *hw,
                                                unsigned long parent_rate)
 {
-       return 500000000;
+       struct clk_pllv3 *pll = to_clk_pllv3(hw);
+
+       return pll->ref_clock;
 }
 
 static const struct clk_ops clk_pllv3_enet_ops = {
@@ -326,7 +329,11 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
                break;
        case IMX_PLLV3_ENET_IMX7:
                pll->powerdown = IMX7_ENET_PLL_POWER;
+               pll->ref_clock = 1000000000;
+               ops = &clk_pllv3_enet_ops;
+               break;
        case IMX_PLLV3_ENET:
+               pll->ref_clock = 500000000;
                ops = &clk_pllv3_enet_ops;
                break;
        default: