@@ -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;
void __iomem *base;
+ struct imx_pll14xx_ssc ssc_conf;
int ret;
base = devm_platform_ioremap_resource(pdev, 0);
@@ -338,9 +339,21 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
hws[IMX8MN_SYS_PLL3_REF_SEL] = imx8m_anatop_get_clk_hw(IMX8MN_ANATOP_SYS_PLL3_REF_SEL);
hws[IMX8MN_AUDIO_PLL1] = imx8m_anatop_get_clk_hw(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] = imx8m_anatop_get_clk_hw(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] = imx8m_anatop_get_clk_hw(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] = imx8m_anatop_get_clk_hw(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] = imx8m_anatop_get_clk_hw(IMX8MN_ANATOP_GPU_PLL);
hws[IMX8MN_M7_ALT_PLL] = imx8m_anatop_get_clk_hw(IMX8MN_ANATOP_M7_ALT_PLL);
hws[IMX8MN_ARM_PLL] = imx8m_anatop_get_clk_hw(IMX8MN_ANATOP_ARM_PLL);
Add support for spread spectrum clock generation for the audio, video, and DRAM PLLs. Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> --- Changes in v6: - Merge patches: 10/20 dt-bindings: clock: imx8mm: add binding definitions for anatop 11/20 dt-bindings: clock: imx8mn: add binding definitions for anatop 12/20 dt-bindings: clock: imx8mp: add binding definitions for anatop to 05/20 dt-bindings: clock: imx8m-anatop: define clocks/clock-names now renamed 05/18 dt-bindings: clock: imx8m-anatop: add oscillators and PLLs - Split the patch 15/20 dt-bindings-clock-imx8m-clock-support-spread-spectru.patch into 12/18 dt-bindings: clock: imx8m-clock: add PLLs 16/18 dt-bindings: clock: imx8m-clock: support spread spectrum clocking Changes in v5: - Fix compilation errors. - Separate driver code from dt-bindings Changes in v4: - Add dt-bindings for anatop - Add anatop driver - Drop fsl,ssc-clocks from spread spectrum dt-bindings Changes in v3: - Patches 1/8 has been added in version 3. The dt-bindings have been moved from fsl,imx8m-anatop.yaml to imx8m-clock.yaml. The anatop device (fsl,imx8m-anatop.yaml) is indeed more or less a syscon, so it represents a memory area accessible by ccm (imx8m-clock.yaml) to setup the PLLs. - Patches {3,5}/8 have been added in version 3. - Patches {4,6,8}/8 use ccm device node instead of the anatop one. 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-imx8mn.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)