[v3,8/8] clk: imx8mp: support spread spectrum clock generation
diff mbox series

Message ID 20241106090549.3684963-9-dario.binacchi@amarulasolutions.com
State New
Headers show
Series
  • Support spread spectrum clocking for i.MX8{M,N,P} PLLs
Related show

Commit Message

Dario Binacchi Nov. 6, 2024, 8:58 a.m. UTC 
The patch adds support for spread spectrum clock generation for the
audio, video, and DRAM PLLs.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

Changes in v3:
- Use ccm node device

Changes in v2:
- Add "allOf:" and place it after "required:" block, like in the
  example schema.
- Move the properties definition to the top-level.
- Drop unit types as requested by the "make dt_binding_check" command.

 drivers/clk/imx/clk-imx8mp.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

Patch
diff mbox series 

diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index b2778958a572..e53a688d2cfe 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -410,6 +410,7 @@  static int imx8mp_clocks_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct device_node *np, *anatop_np;
 	void __iomem *anatop_base, *ccm_base;
+	struct imx_pll14xx_ssc pll1443x_ssc;
 	int err;
 
 	anatop_np = of_find_compatible_node(NULL, NULL, "fsl,imx8mp-anatop");
@@ -449,10 +450,14 @@  static int imx8mp_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MP_SYS_PLL2_REF_SEL] = imx_clk_hw_mux("sys_pll2_ref_sel", anatop_base + 0x104, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
 	hws[IMX8MP_SYS_PLL3_REF_SEL] = imx_clk_hw_mux("sys_pll3_ref_sel", anatop_base + 0x114, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
 
-	hws[IMX8MP_AUDIO_PLL1] = imx_clk_hw_pll14xx("audio_pll1", "audio_pll1_ref_sel", anatop_base, &imx_1443x_pll);
-	hws[IMX8MP_AUDIO_PLL2] = imx_clk_hw_pll14xx("audio_pll2", "audio_pll2_ref_sel", anatop_base + 0x14, &imx_1443x_pll);
-	hws[IMX8MP_VIDEO_PLL1] = imx_clk_hw_pll14xx("video_pll1", "video_pll1_ref_sel", anatop_base + 0x28, &imx_1443x_pll);
-	hws[IMX8MP_DRAM_PLL] = imx_clk_hw_pll14xx("dram_pll", "dram_pll_ref_sel", anatop_base + 0x50, &imx_1443x_dram_pll);
+	imx_clk_pll14xx_get_ssc_conf(np, IMX8MP_AUDIO_PLL1, &pll1443x_ssc);
+	hws[IMX8MP_AUDIO_PLL1] = imx_clk_hw_pll14xx_ssc("audio_pll1", "audio_pll1_ref_sel", anatop_base, &imx_1443x_pll, &pll1443x_ssc);
+	imx_clk_pll14xx_get_ssc_conf(np, IMX8MP_AUDIO_PLL2, &pll1443x_ssc);
+	hws[IMX8MP_AUDIO_PLL2] = imx_clk_hw_pll14xx_ssc("audio_pll2", "audio_pll2_ref_sel", anatop_base + 0x14, &imx_1443x_pll, &pll1443x_ssc);
+	imx_clk_pll14xx_get_ssc_conf(np, IMX8MP_VIDEO_PLL1, &pll1443x_ssc);
+	hws[IMX8MP_VIDEO_PLL1] = imx_clk_hw_pll14xx_ssc("video_pll1", "video_pll1_ref_sel", anatop_base + 0x28, &imx_1443x_pll, &pll1443x_ssc);
+	imx_clk_pll14xx_get_ssc_conf(np, IMX8MP_DRAM_PLL, &pll1443x_ssc);
+	hws[IMX8MP_DRAM_PLL] = imx_clk_hw_pll14xx_ssc("dram_pll", "dram_pll_ref_sel", anatop_base + 0x50, &imx_1443x_dram_pll, &pll1443x_ssc);
 	hws[IMX8MP_GPU_PLL] = imx_clk_hw_pll14xx("gpu_pll", "gpu_pll_ref_sel", anatop_base + 0x64, &imx_1416x_pll);
 	hws[IMX8MP_VPU_PLL] = imx_clk_hw_pll14xx("vpu_pll", "vpu_pll_ref_sel", anatop_base + 0x74, &imx_1416x_pll);
 	hws[IMX8MP_ARM_PLL] = imx_clk_hw_pll14xx("arm_pll", "arm_pll_ref_sel", anatop_base + 0x84, &imx_1416x_pll);