1 // SPDX-License-Identifier: GPL-2.0+
3  * Amlogic Meson-G12A Clock Controller Driver
13 #include <linux/clk-provider.h>
20 #include "clk-mpll.h"
21 #include "clk-pll.h"
22 #include "clk-regmap.h"
23 #include "clk-cpu-dyndiv.h"
24 #include "vid-pll-div.h"
26 #include "meson-clkc-utils.h"
28 #include <dt-bindings/clock/g12a-clkc.h>
864 		 * b) CCF has a clock hand-off mechanism to make the sure the
900 		 * b) CCF has a clock hand-off mechanism to make the sure the
1139 		/* This sub-tree is used a parking clock */
1176 		/* This sub-tree is used a parking clock */
1323 		/* This sub-tree is used a parking clock */
1360 		/* This sub-tree is used a parking clock */
1660 		 *    \- cpu_clk_dyn  in g12a_cpu_clk_dyn_notifier_cb()
1661 		 *          \- cpu_clk_dyn0  in g12a_cpu_clk_dyn_notifier_cb()
1662 		 *                \- cpu_clk_dyn0_div  in g12a_cpu_clk_dyn_notifier_cb()
1663 		 *                      \- cpu_clk_dyn0_sel  in g12a_cpu_clk_dyn_notifier_cb()
1664 		 *				\- fclk_div3 or fclk_div2  in g12a_cpu_clk_dyn_notifier_cb()
1666 		 *                \- cpu_clk_dyn0_sel  in g12a_cpu_clk_dyn_notifier_cb()
1667 		 *			\- fclk_div3 or fclk_div2  in g12a_cpu_clk_dyn_notifier_cb()
1671 		clk_hw_set_parent(nb_data->cpu_clk_premux1,  in g12a_cpu_clk_dyn_notifier_cb()
1672 				  nb_data->xtal);  in g12a_cpu_clk_dyn_notifier_cb()
1675 		clk_hw_set_parent(nb_data->cpu_clk_postmux1,  in g12a_cpu_clk_dyn_notifier_cb()
1676 				  nb_data->cpu_clk_premux1);  in g12a_cpu_clk_dyn_notifier_cb()
1679 		clk_hw_set_parent(nb_data->cpu_clk_dyn,  in g12a_cpu_clk_dyn_notifier_cb()
1680 				  nb_data->cpu_clk_postmux1);  in g12a_cpu_clk_dyn_notifier_cb()
1685 		 *    \- cpu_clk_dyn  in g12a_cpu_clk_dyn_notifier_cb()
1686 		 *          \- cpu_clk_dyn1  in g12a_cpu_clk_dyn_notifier_cb()
1687 		 *                \- cpu_clk_dyn1_sel  in g12a_cpu_clk_dyn_notifier_cb()
1688 		 *                      \- xtal  in g12a_cpu_clk_dyn_notifier_cb()
1703 		clk_hw_set_parent(nb_data->cpu_clk_dyn,  in g12a_cpu_clk_dyn_notifier_cb()
1704 				  nb_data->cpu_clk_postmux0);  in g12a_cpu_clk_dyn_notifier_cb()
1709 		 *    \- cpu_clk_dyn  in g12a_cpu_clk_dyn_notifier_cb()
1710 		 *          \- cpu_clk_dyn0  in g12a_cpu_clk_dyn_notifier_cb()
1711 		 *                \- cpu_clk_dyn0_div  in g12a_cpu_clk_dyn_notifier_cb()
1712 		 *                      \- cpu_clk_dyn0_sel  in g12a_cpu_clk_dyn_notifier_cb()
1713 		 *				\- fclk_div3 or fclk_div2  in g12a_cpu_clk_dyn_notifier_cb()
1715 		 *                \- cpu_clk_dyn0_sel  in g12a_cpu_clk_dyn_notifier_cb()
1716 		 *			\- fclk_div3 or fclk_div2  in g12a_cpu_clk_dyn_notifier_cb()
1763 		 *    \- sys_pll  in g12a_sys_pll_notifier_cb()
1764 		 *          \- sys_pll_dco  in g12a_sys_pll_notifier_cb()
1768 		clk_hw_set_parent(nb_data->cpu_clk,  in g12a_sys_pll_notifier_cb()
1769 				  nb_data->cpu_clk_dyn);  in g12a_sys_pll_notifier_cb()
1774 		 *    \- cpu_clk_dyn  in g12a_sys_pll_notifier_cb()
1775 		 *          \- cpu_clk_dynX  in g12a_sys_pll_notifier_cb()
1776 		 *                \- cpu_clk_dynX_sel  in g12a_sys_pll_notifier_cb()
1777 		 *		     \- cpu_clk_dynX_div  in g12a_sys_pll_notifier_cb()
1778 		 *                      \- xtal/fclk_div2/fclk_div3  in g12a_sys_pll_notifier_cb()
1779 		 *                   \- xtal/fclk_div2/fclk_div3  in g12a_sys_pll_notifier_cb()
1793 		clk_hw_set_parent(nb_data->cpu_clk,  in g12a_sys_pll_notifier_cb()
1794 				  nb_data->sys_pll);  in g12a_sys_pll_notifier_cb()
1800 		 *    \- sys_pll  in g12a_sys_pll_notifier_cb()
1801 		 *          \- sys_pll_dco  in g12a_sys_pll_notifier_cb()
1853 			.index = -1,
1920 			.index = -1,
1957 			.index = -1,
1994 			.index = -1,
2031 			.index = -1,
2579 	 * the necessary rates for MMC and NAND operation can be achieved using
2682 /* EMMC/NAND clock */
2740 		.sel = {
4002  * muxed by a glitch-free switch. The CCF can manage this glitch-free
4003  * mux because it does top-to-bottom updates the each clock tree and
4400  *  - remove the flag if not necessary
4401  *  - replace the flag with something more adequate, such as CLK_IS_CRITICAL,
4403  *  - add a comment explaining why the use of CLK_IGNORE_UNUSED is desirable
5267 	struct device *dev = &pdev->dev;  in g12b_dvfs_setup()
5345 	struct device *dev = &pdev->dev;  in g12a_dvfs_setup()
5385 	clkc_data = of_device_get_match_data(&pdev->dev);  in g12a_clkc_probe()
5387 		return -EINVAL;  in g12a_clkc_probe()
5396 	if (g12a_data->dvfs_setup)  in g12a_clkc_probe()
5397 		return g12a_data->dvfs_setup(pdev);  in g12a_clkc_probe()
5436 		.compatible = "amlogic,g12a-clkc",
5440 		.compatible = "amlogic,g12b-clkc",
5444 		.compatible = "amlogic,sm1-clkc",
5454 		.name	= "g12a-clkc",