clk: imx7d: add ADC root clock

Add ADC root clock support in imx7d clock tree.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

drivers/clk/imx/clk-imx7d.c

@@ -829,6 +829,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
 	clks[IMX7D_CSI_MCLK_ROOT_CLK] = imx_clk_gate2("csi_mclk_root_clk", "csi_mclk_post_div", base + 0x4490, 0);
 	clks[IMX7D_AUDIO_MCLK_ROOT_CLK] = imx_clk_gate2("audio_mclk_root_clk", "audio_mclk_post_div", base + 0x4790, 0);
 	clks[IMX7D_WRCLK_ROOT_CLK] = imx_clk_gate2("wrclk_root_clk", "wrclk_post_div", base + 0x47a0, 0);
+	clks[IMX7D_ADC_ROOT_CLK] = imx_clk_gate2("adc_root_clk", "ipg_root_clk", base + 0x4200, 0);
 
 	clks[IMX7D_GPT_3M_CLK] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8);
 

include/dt-bindings/clock/imx7d-clock.h

@@ -446,5 +446,6 @@
 #define IMX7D_MU_ROOT_CLK		433
 #define IMX7D_SEMA4_HS_ROOT_CLK		434
 #define IMX7D_PLL_DRAM_TEST_DIV		435
-#define IMX7D_CLK_END			436
+#define IMX7D_ADC_ROOT_CLK		436
+#define IMX7D_CLK_END			437
 #endif /* __DT_BINDINGS_CLOCK_IMX7D_H */