[PATCH 2/2] clk: imx: return correct frequency for Ethernet PLL

Stefan Agner
2016-01-29T22:49:24Z

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>
---
drivers/clk/imx/clk-pllv3.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index b5ff561..c344ae6 100644
--- 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)
@@ -289,7 +290,9 @@ 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 = {
@@ -329,7 +332,11 @@ 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:
--
2.7.0