[PATCH v9 18/23] clk: imx8mn: support spread spectrum clock generation

[Dario Binacchi]

Add support for spread spectrum clock generation for the audio, video,
and DRAM PLLs.

Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
Reviewed-by: Peng Fan <peng.fan at nxp.com>

---

Changes in v9:
- Add 'Reviewed-by' tag of Peng Fan

 drivers/clk/imx/clk-imx8mn.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c
index c3a3d063d58e..090b5924fa01 100644
--- a/drivers/clk/imx/clk-imx8mn.c
+++ b/drivers/clk/imx/clk-imx8mn.c
@@ -306,6 +306,7 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node, *anp;
 	void __iomem *base;
+	struct imx_pll14xx_ssc ssc_conf;
 	int ret;
 
 	base = devm_platform_ioremap_resource(pdev, 0);
@@ -344,9 +345,21 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MN_SYS_PLL3_REF_SEL] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_SYS_PLL3_REF_SEL);
 
 	hws[IMX8MN_AUDIO_PLL1] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_AUDIO_PLL1);
+	if (!imx_clk_pll14xx_ssc_parse_dt(np, "audio_pll1", &ssc_conf))
+		imx_clk_pll14xx_enable_ssc(hws[IMX8MN_AUDIO_PLL1], &ssc_conf);
+
 	hws[IMX8MN_AUDIO_PLL2] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_AUDIO_PLL2);
+	if (!imx_clk_pll14xx_ssc_parse_dt(np, "audio_pll2", &ssc_conf))
+		imx_clk_pll14xx_enable_ssc(hws[IMX8MN_AUDIO_PLL2], &ssc_conf);
+
 	hws[IMX8MN_VIDEO_PLL] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_VIDEO_PLL);
+	if (!imx_clk_pll14xx_ssc_parse_dt(np, "video_pll", &ssc_conf))
+		imx_clk_pll14xx_enable_ssc(hws[IMX8MN_VIDEO_PLL], &ssc_conf);
+
 	hws[IMX8MN_DRAM_PLL] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_DRAM_PLL);
+	if (!imx_clk_pll14xx_ssc_parse_dt(np, "dram_pll", &ssc_conf))
+		imx_clk_pll14xx_enable_ssc(hws[IMX8MN_DRAM_PLL], &ssc_conf);
+
 	hws[IMX8MN_GPU_PLL] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_GPU_PLL);
 	hws[IMX8MN_M7_ALT_PLL] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_M7_ALT_PLL);
 	hws[IMX8MN_ARM_PLL] = imx_anatop_get_clk_hw(anp, IMX8MN_ANATOP_ARM_PLL);
-- 
2.43.0