| /* |
| * AmLogic S905 / GXBB Clock Controller Driver |
| * |
| * Copyright (c) 2016 AmLogic, Inc. |
| * Michael Turquette <mturquette@baylibre.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/clk-provider.h> |
| #include <linux/of_address.h> |
| #include <linux/platform_device.h> |
| #include <linux/init.h> |
| |
| #include "clkc.h" |
| #include "gxbb.h" |
| |
| static DEFINE_SPINLOCK(clk_lock); |
| |
| static const struct pll_rate_table sys_pll_rate_table[] = { |
| PLL_RATE(24000000, 56, 1, 2), |
| PLL_RATE(48000000, 64, 1, 2), |
| PLL_RATE(72000000, 72, 1, 2), |
| PLL_RATE(96000000, 64, 1, 2), |
| PLL_RATE(120000000, 80, 1, 2), |
| PLL_RATE(144000000, 96, 1, 2), |
| PLL_RATE(168000000, 56, 1, 1), |
| PLL_RATE(192000000, 64, 1, 1), |
| PLL_RATE(216000000, 72, 1, 1), |
| PLL_RATE(240000000, 80, 1, 1), |
| PLL_RATE(264000000, 88, 1, 1), |
| PLL_RATE(288000000, 96, 1, 1), |
| PLL_RATE(312000000, 52, 1, 2), |
| PLL_RATE(336000000, 56, 1, 2), |
| PLL_RATE(360000000, 60, 1, 2), |
| PLL_RATE(384000000, 64, 1, 2), |
| PLL_RATE(408000000, 68, 1, 2), |
| PLL_RATE(432000000, 72, 1, 2), |
| PLL_RATE(456000000, 76, 1, 2), |
| PLL_RATE(480000000, 80, 1, 2), |
| PLL_RATE(504000000, 84, 1, 2), |
| PLL_RATE(528000000, 88, 1, 2), |
| PLL_RATE(552000000, 92, 1, 2), |
| PLL_RATE(576000000, 96, 1, 2), |
| PLL_RATE(600000000, 50, 1, 1), |
| PLL_RATE(624000000, 52, 1, 1), |
| PLL_RATE(648000000, 54, 1, 1), |
| PLL_RATE(672000000, 56, 1, 1), |
| PLL_RATE(696000000, 58, 1, 1), |
| PLL_RATE(720000000, 60, 1, 1), |
| PLL_RATE(744000000, 62, 1, 1), |
| PLL_RATE(768000000, 64, 1, 1), |
| PLL_RATE(792000000, 66, 1, 1), |
| PLL_RATE(816000000, 68, 1, 1), |
| PLL_RATE(840000000, 70, 1, 1), |
| PLL_RATE(864000000, 72, 1, 1), |
| PLL_RATE(888000000, 74, 1, 1), |
| PLL_RATE(912000000, 76, 1, 1), |
| PLL_RATE(936000000, 78, 1, 1), |
| PLL_RATE(960000000, 80, 1, 1), |
| PLL_RATE(984000000, 82, 1, 1), |
| PLL_RATE(1008000000, 84, 1, 1), |
| PLL_RATE(1032000000, 86, 1, 1), |
| PLL_RATE(1056000000, 88, 1, 1), |
| PLL_RATE(1080000000, 90, 1, 1), |
| PLL_RATE(1104000000, 92, 1, 1), |
| PLL_RATE(1128000000, 94, 1, 1), |
| PLL_RATE(1152000000, 96, 1, 1), |
| PLL_RATE(1176000000, 98, 1, 1), |
| PLL_RATE(1200000000, 50, 1, 0), |
| PLL_RATE(1224000000, 51, 1, 0), |
| PLL_RATE(1248000000, 52, 1, 0), |
| PLL_RATE(1272000000, 53, 1, 0), |
| PLL_RATE(1296000000, 54, 1, 0), |
| PLL_RATE(1320000000, 55, 1, 0), |
| PLL_RATE(1344000000, 56, 1, 0), |
| PLL_RATE(1368000000, 57, 1, 0), |
| PLL_RATE(1392000000, 58, 1, 0), |
| PLL_RATE(1416000000, 59, 1, 0), |
| PLL_RATE(1440000000, 60, 1, 0), |
| PLL_RATE(1464000000, 61, 1, 0), |
| PLL_RATE(1488000000, 62, 1, 0), |
| PLL_RATE(1512000000, 63, 1, 0), |
| PLL_RATE(1536000000, 64, 1, 0), |
| PLL_RATE(1560000000, 65, 1, 0), |
| PLL_RATE(1584000000, 66, 1, 0), |
| PLL_RATE(1608000000, 67, 1, 0), |
| PLL_RATE(1632000000, 68, 1, 0), |
| PLL_RATE(1656000000, 68, 1, 0), |
| PLL_RATE(1680000000, 68, 1, 0), |
| PLL_RATE(1704000000, 68, 1, 0), |
| PLL_RATE(1728000000, 69, 1, 0), |
| PLL_RATE(1752000000, 69, 1, 0), |
| PLL_RATE(1776000000, 69, 1, 0), |
| PLL_RATE(1800000000, 69, 1, 0), |
| PLL_RATE(1824000000, 70, 1, 0), |
| PLL_RATE(1848000000, 70, 1, 0), |
| PLL_RATE(1872000000, 70, 1, 0), |
| PLL_RATE(1896000000, 70, 1, 0), |
| PLL_RATE(1920000000, 71, 1, 0), |
| PLL_RATE(1944000000, 71, 1, 0), |
| PLL_RATE(1968000000, 71, 1, 0), |
| PLL_RATE(1992000000, 71, 1, 0), |
| PLL_RATE(2016000000, 72, 1, 0), |
| PLL_RATE(2040000000, 72, 1, 0), |
| PLL_RATE(2064000000, 72, 1, 0), |
| PLL_RATE(2088000000, 72, 1, 0), |
| PLL_RATE(2112000000, 73, 1, 0), |
| { /* sentinel */ }, |
| }; |
| |
| static const struct pll_rate_table gp0_pll_rate_table[] = { |
| PLL_RATE(96000000, 32, 1, 3), |
| PLL_RATE(99000000, 33, 1, 3), |
| PLL_RATE(102000000, 34, 1, 3), |
| PLL_RATE(105000000, 35, 1, 3), |
| PLL_RATE(108000000, 36, 1, 3), |
| PLL_RATE(111000000, 37, 1, 3), |
| PLL_RATE(114000000, 38, 1, 3), |
| PLL_RATE(117000000, 39, 1, 3), |
| PLL_RATE(120000000, 40, 1, 3), |
| PLL_RATE(123000000, 41, 1, 3), |
| PLL_RATE(126000000, 42, 1, 3), |
| PLL_RATE(129000000, 43, 1, 3), |
| PLL_RATE(132000000, 44, 1, 3), |
| PLL_RATE(135000000, 45, 1, 3), |
| PLL_RATE(138000000, 46, 1, 3), |
| PLL_RATE(141000000, 47, 1, 3), |
| PLL_RATE(144000000, 48, 1, 3), |
| PLL_RATE(147000000, 49, 1, 3), |
| PLL_RATE(150000000, 50, 1, 3), |
| PLL_RATE(153000000, 51, 1, 3), |
| PLL_RATE(156000000, 52, 1, 3), |
| PLL_RATE(159000000, 53, 1, 3), |
| PLL_RATE(162000000, 54, 1, 3), |
| PLL_RATE(165000000, 55, 1, 3), |
| PLL_RATE(168000000, 56, 1, 3), |
| PLL_RATE(171000000, 57, 1, 3), |
| PLL_RATE(174000000, 58, 1, 3), |
| PLL_RATE(177000000, 59, 1, 3), |
| PLL_RATE(180000000, 60, 1, 3), |
| PLL_RATE(183000000, 61, 1, 3), |
| PLL_RATE(186000000, 62, 1, 3), |
| PLL_RATE(192000000, 32, 1, 2), |
| PLL_RATE(198000000, 33, 1, 2), |
| PLL_RATE(204000000, 34, 1, 2), |
| PLL_RATE(210000000, 35, 1, 2), |
| PLL_RATE(216000000, 36, 1, 2), |
| PLL_RATE(222000000, 37, 1, 2), |
| PLL_RATE(228000000, 38, 1, 2), |
| PLL_RATE(234000000, 39, 1, 2), |
| PLL_RATE(240000000, 40, 1, 2), |
| PLL_RATE(246000000, 41, 1, 2), |
| PLL_RATE(252000000, 42, 1, 2), |
| PLL_RATE(258000000, 43, 1, 2), |
| PLL_RATE(264000000, 44, 1, 2), |
| PLL_RATE(270000000, 45, 1, 2), |
| PLL_RATE(276000000, 46, 1, 2), |
| PLL_RATE(282000000, 47, 1, 2), |
| PLL_RATE(288000000, 48, 1, 2), |
| PLL_RATE(294000000, 49, 1, 2), |
| PLL_RATE(300000000, 50, 1, 2), |
| PLL_RATE(306000000, 51, 1, 2), |
| PLL_RATE(312000000, 52, 1, 2), |
| PLL_RATE(318000000, 53, 1, 2), |
| PLL_RATE(324000000, 54, 1, 2), |
| PLL_RATE(330000000, 55, 1, 2), |
| PLL_RATE(336000000, 56, 1, 2), |
| PLL_RATE(342000000, 57, 1, 2), |
| PLL_RATE(348000000, 58, 1, 2), |
| PLL_RATE(354000000, 59, 1, 2), |
| PLL_RATE(360000000, 60, 1, 2), |
| PLL_RATE(366000000, 61, 1, 2), |
| PLL_RATE(372000000, 62, 1, 2), |
| PLL_RATE(384000000, 32, 1, 1), |
| PLL_RATE(396000000, 33, 1, 1), |
| PLL_RATE(408000000, 34, 1, 1), |
| PLL_RATE(420000000, 35, 1, 1), |
| PLL_RATE(432000000, 36, 1, 1), |
| PLL_RATE(444000000, 37, 1, 1), |
| PLL_RATE(456000000, 38, 1, 1), |
| PLL_RATE(468000000, 39, 1, 1), |
| PLL_RATE(480000000, 40, 1, 1), |
| PLL_RATE(492000000, 41, 1, 1), |
| PLL_RATE(504000000, 42, 1, 1), |
| PLL_RATE(516000000, 43, 1, 1), |
| PLL_RATE(528000000, 44, 1, 1), |
| PLL_RATE(540000000, 45, 1, 1), |
| PLL_RATE(552000000, 46, 1, 1), |
| PLL_RATE(564000000, 47, 1, 1), |
| PLL_RATE(576000000, 48, 1, 1), |
| PLL_RATE(588000000, 49, 1, 1), |
| PLL_RATE(600000000, 50, 1, 1), |
| PLL_RATE(612000000, 51, 1, 1), |
| PLL_RATE(624000000, 52, 1, 1), |
| PLL_RATE(636000000, 53, 1, 1), |
| PLL_RATE(648000000, 54, 1, 1), |
| PLL_RATE(660000000, 55, 1, 1), |
| PLL_RATE(672000000, 56, 1, 1), |
| PLL_RATE(684000000, 57, 1, 1), |
| PLL_RATE(696000000, 58, 1, 1), |
| PLL_RATE(708000000, 59, 1, 1), |
| PLL_RATE(720000000, 60, 1, 1), |
| PLL_RATE(732000000, 61, 1, 1), |
| PLL_RATE(744000000, 62, 1, 1), |
| PLL_RATE(768000000, 32, 1, 0), |
| PLL_RATE(792000000, 33, 1, 0), |
| PLL_RATE(816000000, 34, 1, 0), |
| PLL_RATE(840000000, 35, 1, 0), |
| PLL_RATE(864000000, 36, 1, 0), |
| PLL_RATE(888000000, 37, 1, 0), |
| PLL_RATE(912000000, 38, 1, 0), |
| PLL_RATE(936000000, 39, 1, 0), |
| PLL_RATE(960000000, 40, 1, 0), |
| PLL_RATE(984000000, 41, 1, 0), |
| PLL_RATE(1008000000, 42, 1, 0), |
| PLL_RATE(1032000000, 43, 1, 0), |
| PLL_RATE(1056000000, 44, 1, 0), |
| PLL_RATE(1080000000, 45, 1, 0), |
| PLL_RATE(1104000000, 46, 1, 0), |
| PLL_RATE(1128000000, 47, 1, 0), |
| PLL_RATE(1152000000, 48, 1, 0), |
| PLL_RATE(1176000000, 49, 1, 0), |
| PLL_RATE(1200000000, 50, 1, 0), |
| PLL_RATE(1224000000, 51, 1, 0), |
| PLL_RATE(1248000000, 52, 1, 0), |
| PLL_RATE(1272000000, 53, 1, 0), |
| PLL_RATE(1296000000, 54, 1, 0), |
| PLL_RATE(1320000000, 55, 1, 0), |
| PLL_RATE(1344000000, 56, 1, 0), |
| PLL_RATE(1368000000, 57, 1, 0), |
| PLL_RATE(1392000000, 58, 1, 0), |
| PLL_RATE(1416000000, 59, 1, 0), |
| PLL_RATE(1440000000, 60, 1, 0), |
| PLL_RATE(1464000000, 61, 1, 0), |
| PLL_RATE(1488000000, 62, 1, 0), |
| { /* sentinel */ }, |
| }; |
| |
| static const struct clk_div_table cpu_div_table[] = { |
| { .val = 1, .div = 1 }, |
| { .val = 2, .div = 2 }, |
| { .val = 3, .div = 3 }, |
| { .val = 2, .div = 4 }, |
| { .val = 3, .div = 6 }, |
| { .val = 4, .div = 8 }, |
| { .val = 5, .div = 10 }, |
| { .val = 6, .div = 12 }, |
| { .val = 7, .div = 14 }, |
| { .val = 8, .div = 16 }, |
| { /* sentinel */ }, |
| }; |
| |
| static struct meson_clk_pll gxbb_fixed_pll = { |
| .m = { |
| .reg_off = HHI_MPLL_CNTL, |
| .shift = 0, |
| .width = 9, |
| }, |
| .n = { |
| .reg_off = HHI_MPLL_CNTL, |
| .shift = 9, |
| .width = 5, |
| }, |
| .od = { |
| .reg_off = HHI_MPLL_CNTL, |
| .shift = 16, |
| .width = 2, |
| }, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "fixed_pll", |
| .ops = &meson_clk_pll_ro_ops, |
| .parent_names = (const char *[]){ "xtal" }, |
| .num_parents = 1, |
| .flags = CLK_GET_RATE_NOCACHE, |
| }, |
| }; |
| |
| static struct meson_clk_pll gxbb_hdmi_pll = { |
| .m = { |
| .reg_off = HHI_HDMI_PLL_CNTL, |
| .shift = 0, |
| .width = 9, |
| }, |
| .n = { |
| .reg_off = HHI_HDMI_PLL_CNTL, |
| .shift = 9, |
| .width = 5, |
| }, |
| .frac = { |
| .reg_off = HHI_HDMI_PLL_CNTL2, |
| .shift = 0, |
| .width = 12, |
| }, |
| .od = { |
| .reg_off = HHI_HDMI_PLL_CNTL2, |
| .shift = 16, |
| .width = 2, |
| }, |
| .od2 = { |
| .reg_off = HHI_HDMI_PLL_CNTL2, |
| .shift = 22, |
| .width = 2, |
| }, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "hdmi_pll", |
| .ops = &meson_clk_pll_ro_ops, |
| .parent_names = (const char *[]){ "xtal" }, |
| .num_parents = 1, |
| .flags = CLK_GET_RATE_NOCACHE, |
| }, |
| }; |
| |
| static struct meson_clk_pll gxbb_sys_pll = { |
| .m = { |
| .reg_off = HHI_SYS_PLL_CNTL, |
| .shift = 0, |
| .width = 9, |
| }, |
| .n = { |
| .reg_off = HHI_SYS_PLL_CNTL, |
| .shift = 9, |
| .width = 5, |
| }, |
| .od = { |
| .reg_off = HHI_SYS_PLL_CNTL, |
| .shift = 10, |
| .width = 2, |
| }, |
| .rate_table = sys_pll_rate_table, |
| .rate_count = ARRAY_SIZE(sys_pll_rate_table), |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "sys_pll", |
| .ops = &meson_clk_pll_ro_ops, |
| .parent_names = (const char *[]){ "xtal" }, |
| .num_parents = 1, |
| .flags = CLK_GET_RATE_NOCACHE, |
| }, |
| }; |
| |
| static struct meson_clk_pll gxbb_gp0_pll = { |
| .m = { |
| .reg_off = HHI_GP0_PLL_CNTL, |
| .shift = 0, |
| .width = 9, |
| }, |
| .n = { |
| .reg_off = HHI_GP0_PLL_CNTL, |
| .shift = 9, |
| .width = 5, |
| }, |
| .od = { |
| .reg_off = HHI_GP0_PLL_CNTL, |
| .shift = 16, |
| .width = 2, |
| }, |
| .rate_table = gp0_pll_rate_table, |
| .rate_count = ARRAY_SIZE(gp0_pll_rate_table), |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "gp0_pll", |
| .ops = &meson_clk_pll_ops, |
| .parent_names = (const char *[]){ "xtal" }, |
| .num_parents = 1, |
| .flags = CLK_GET_RATE_NOCACHE, |
| }, |
| }; |
| |
| static struct clk_fixed_factor gxbb_fclk_div2 = { |
| .mult = 1, |
| .div = 2, |
| .hw.init = &(struct clk_init_data){ |
| .name = "fclk_div2", |
| .ops = &clk_fixed_factor_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct clk_fixed_factor gxbb_fclk_div3 = { |
| .mult = 1, |
| .div = 3, |
| .hw.init = &(struct clk_init_data){ |
| .name = "fclk_div3", |
| .ops = &clk_fixed_factor_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct clk_fixed_factor gxbb_fclk_div4 = { |
| .mult = 1, |
| .div = 4, |
| .hw.init = &(struct clk_init_data){ |
| .name = "fclk_div4", |
| .ops = &clk_fixed_factor_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct clk_fixed_factor gxbb_fclk_div5 = { |
| .mult = 1, |
| .div = 5, |
| .hw.init = &(struct clk_init_data){ |
| .name = "fclk_div5", |
| .ops = &clk_fixed_factor_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct clk_fixed_factor gxbb_fclk_div7 = { |
| .mult = 1, |
| .div = 7, |
| .hw.init = &(struct clk_init_data){ |
| .name = "fclk_div7", |
| .ops = &clk_fixed_factor_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct meson_clk_mpll gxbb_mpll0 = { |
| .sdm = { |
| .reg_off = HHI_MPLL_CNTL7, |
| .shift = 0, |
| .width = 14, |
| }, |
| .n2 = { |
| .reg_off = HHI_MPLL_CNTL7, |
| .shift = 16, |
| .width = 9, |
| }, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "mpll0", |
| .ops = &meson_clk_mpll_ro_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct meson_clk_mpll gxbb_mpll1 = { |
| .sdm = { |
| .reg_off = HHI_MPLL_CNTL8, |
| .shift = 0, |
| .width = 14, |
| }, |
| .n2 = { |
| .reg_off = HHI_MPLL_CNTL8, |
| .shift = 16, |
| .width = 9, |
| }, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "mpll1", |
| .ops = &meson_clk_mpll_ro_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct meson_clk_mpll gxbb_mpll2 = { |
| .sdm = { |
| .reg_off = HHI_MPLL_CNTL9, |
| .shift = 0, |
| .width = 14, |
| }, |
| .n2 = { |
| .reg_off = HHI_MPLL_CNTL9, |
| .shift = 16, |
| .width = 9, |
| }, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "mpll2", |
| .ops = &meson_clk_mpll_ro_ops, |
| .parent_names = (const char *[]){ "fixed_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| /* |
| * FIXME cpu clocks and the legacy composite clocks (e.g. clk81) are both PLL |
| * post-dividers and should be modeled with their respective PLLs via the |
| * forthcoming coordinated clock rates feature |
| */ |
| static struct meson_clk_cpu gxbb_cpu_clk = { |
| .reg_off = HHI_SYS_CPU_CLK_CNTL1, |
| .div_table = cpu_div_table, |
| .clk_nb.notifier_call = meson_clk_cpu_notifier_cb, |
| .hw.init = &(struct clk_init_data){ |
| .name = "cpu_clk", |
| .ops = &meson_clk_cpu_ops, |
| .parent_names = (const char *[]){ "sys_pll" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static u32 mux_table_clk81[] = { 6, 5, 7 }; |
| |
| static struct clk_mux gxbb_mpeg_clk_sel = { |
| .reg = (void *)HHI_MPEG_CLK_CNTL, |
| .mask = 0x7, |
| .shift = 12, |
| .flags = CLK_MUX_READ_ONLY, |
| .table = mux_table_clk81, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "mpeg_clk_sel", |
| .ops = &clk_mux_ro_ops, |
| /* |
| * FIXME bits 14:12 selects from 8 possible parents: |
| * xtal, 1'b0 (wtf), fclk_div7, mpll_clkout1, mpll_clkout2, |
| * fclk_div4, fclk_div3, fclk_div5 |
| */ |
| .parent_names = (const char *[]){ "fclk_div3", "fclk_div4", |
| "fclk_div5" }, |
| .num_parents = 3, |
| .flags = (CLK_SET_RATE_NO_REPARENT | CLK_IGNORE_UNUSED), |
| }, |
| }; |
| |
| static struct clk_divider gxbb_mpeg_clk_div = { |
| .reg = (void *)HHI_MPEG_CLK_CNTL, |
| .shift = 0, |
| .width = 7, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "mpeg_clk_div", |
| .ops = &clk_divider_ops, |
| .parent_names = (const char *[]){ "mpeg_clk_sel" }, |
| .num_parents = 1, |
| .flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED), |
| }, |
| }; |
| |
| /* the mother of dragons^W gates */ |
| static struct clk_gate gxbb_clk81 = { |
| .reg = (void *)HHI_MPEG_CLK_CNTL, |
| .bit_idx = 7, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "clk81", |
| .ops = &clk_gate_ops, |
| .parent_names = (const char *[]){ "mpeg_clk_div" }, |
| .num_parents = 1, |
| .flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED | CLK_IS_CRITICAL), |
| }, |
| }; |
| |
| static struct clk_mux gxbb_sar_adc_clk_sel = { |
| .reg = (void *)HHI_SAR_CLK_CNTL, |
| .mask = 0x3, |
| .shift = 9, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "sar_adc_clk_sel", |
| .ops = &clk_mux_ops, |
| /* NOTE: The datasheet doesn't list the parents for bit 10 */ |
| .parent_names = (const char *[]){ "xtal", "clk81", }, |
| .num_parents = 2, |
| }, |
| }; |
| |
| static struct clk_divider gxbb_sar_adc_clk_div = { |
| .reg = (void *)HHI_SAR_CLK_CNTL, |
| .shift = 0, |
| .width = 8, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "sar_adc_clk_div", |
| .ops = &clk_divider_ops, |
| .parent_names = (const char *[]){ "sar_adc_clk_sel" }, |
| .num_parents = 1, |
| }, |
| }; |
| |
| static struct clk_gate gxbb_sar_adc_clk = { |
| .reg = (void *)HHI_SAR_CLK_CNTL, |
| .bit_idx = 8, |
| .lock = &clk_lock, |
| .hw.init = &(struct clk_init_data){ |
| .name = "sar_adc_clk", |
| .ops = &clk_gate_ops, |
| .parent_names = (const char *[]){ "sar_adc_clk_div" }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| }, |
| }; |
| |
| /* Everything Else (EE) domain gates */ |
| static MESON_GATE(gxbb_ddr, HHI_GCLK_MPEG0, 0); |
| static MESON_GATE(gxbb_dos, HHI_GCLK_MPEG0, 1); |
| static MESON_GATE(gxbb_isa, HHI_GCLK_MPEG0, 5); |
| static MESON_GATE(gxbb_pl301, HHI_GCLK_MPEG0, 6); |
| static MESON_GATE(gxbb_periphs, HHI_GCLK_MPEG0, 7); |
| static MESON_GATE(gxbb_spicc, HHI_GCLK_MPEG0, 8); |
| static MESON_GATE(gxbb_i2c, HHI_GCLK_MPEG0, 9); |
| static MESON_GATE(gxbb_sar_adc, HHI_GCLK_MPEG0, 10); |
| static MESON_GATE(gxbb_smart_card, HHI_GCLK_MPEG0, 11); |
| static MESON_GATE(gxbb_rng0, HHI_GCLK_MPEG0, 12); |
| static MESON_GATE(gxbb_uart0, HHI_GCLK_MPEG0, 13); |
| static MESON_GATE(gxbb_sdhc, HHI_GCLK_MPEG0, 14); |
| static MESON_GATE(gxbb_stream, HHI_GCLK_MPEG0, 15); |
| static MESON_GATE(gxbb_async_fifo, HHI_GCLK_MPEG0, 16); |
| static MESON_GATE(gxbb_sdio, HHI_GCLK_MPEG0, 17); |
| static MESON_GATE(gxbb_abuf, HHI_GCLK_MPEG0, 18); |
| static MESON_GATE(gxbb_hiu_iface, HHI_GCLK_MPEG0, 19); |
| static MESON_GATE(gxbb_assist_misc, HHI_GCLK_MPEG0, 23); |
| static MESON_GATE(gxbb_emmc_a, HHI_GCLK_MPEG0, 24); |
| static MESON_GATE(gxbb_emmc_b, HHI_GCLK_MPEG0, 25); |
| static MESON_GATE(gxbb_emmc_c, HHI_GCLK_MPEG0, 26); |
| static MESON_GATE(gxbb_spi, HHI_GCLK_MPEG0, 30); |
| |
| static MESON_GATE(gxbb_i2s_spdif, HHI_GCLK_MPEG1, 2); |
| static MESON_GATE(gxbb_eth, HHI_GCLK_MPEG1, 3); |
| static MESON_GATE(gxbb_demux, HHI_GCLK_MPEG1, 4); |
| static MESON_GATE(gxbb_aiu_glue, HHI_GCLK_MPEG1, 6); |
| static MESON_GATE(gxbb_iec958, HHI_GCLK_MPEG1, 7); |
| static MESON_GATE(gxbb_i2s_out, HHI_GCLK_MPEG1, 8); |
| static MESON_GATE(gxbb_amclk, HHI_GCLK_MPEG1, 9); |
| static MESON_GATE(gxbb_aififo2, HHI_GCLK_MPEG1, 10); |
| static MESON_GATE(gxbb_mixer, HHI_GCLK_MPEG1, 11); |
| static MESON_GATE(gxbb_mixer_iface, HHI_GCLK_MPEG1, 12); |
| static MESON_GATE(gxbb_adc, HHI_GCLK_MPEG1, 13); |
| static MESON_GATE(gxbb_blkmv, HHI_GCLK_MPEG1, 14); |
| static MESON_GATE(gxbb_aiu, HHI_GCLK_MPEG1, 15); |
| static MESON_GATE(gxbb_uart1, HHI_GCLK_MPEG1, 16); |
| static MESON_GATE(gxbb_g2d, HHI_GCLK_MPEG1, 20); |
| static MESON_GATE(gxbb_usb0, HHI_GCLK_MPEG1, 21); |
| static MESON_GATE(gxbb_usb1, HHI_GCLK_MPEG1, 22); |
| static MESON_GATE(gxbb_reset, HHI_GCLK_MPEG1, 23); |
| static MESON_GATE(gxbb_nand, HHI_GCLK_MPEG1, 24); |
| static MESON_GATE(gxbb_dos_parser, HHI_GCLK_MPEG1, 25); |
| static MESON_GATE(gxbb_usb, HHI_GCLK_MPEG1, 26); |
| static MESON_GATE(gxbb_vdin1, HHI_GCLK_MPEG1, 28); |
| static MESON_GATE(gxbb_ahb_arb0, HHI_GCLK_MPEG1, 29); |
| static MESON_GATE(gxbb_efuse, HHI_GCLK_MPEG1, 30); |
| static MESON_GATE(gxbb_boot_rom, HHI_GCLK_MPEG1, 31); |
| |
| static MESON_GATE(gxbb_ahb_data_bus, HHI_GCLK_MPEG2, 1); |
| static MESON_GATE(gxbb_ahb_ctrl_bus, HHI_GCLK_MPEG2, 2); |
| static MESON_GATE(gxbb_hdmi_intr_sync, HHI_GCLK_MPEG2, 3); |
| static MESON_GATE(gxbb_hdmi_pclk, HHI_GCLK_MPEG2, 4); |
| static MESON_GATE(gxbb_usb1_ddr_bridge, HHI_GCLK_MPEG2, 8); |
| static MESON_GATE(gxbb_usb0_ddr_bridge, HHI_GCLK_MPEG2, 9); |
| static MESON_GATE(gxbb_mmc_pclk, HHI_GCLK_MPEG2, 11); |
| static MESON_GATE(gxbb_dvin, HHI_GCLK_MPEG2, 12); |
| static MESON_GATE(gxbb_uart2, HHI_GCLK_MPEG2, 15); |
| static MESON_GATE(gxbb_sana, HHI_GCLK_MPEG2, 22); |
| static MESON_GATE(gxbb_vpu_intr, HHI_GCLK_MPEG2, 25); |
| static MESON_GATE(gxbb_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26); |
| static MESON_GATE(gxbb_clk81_a53, HHI_GCLK_MPEG2, 29); |
| |
| static MESON_GATE(gxbb_vclk2_venci0, HHI_GCLK_OTHER, 1); |
| static MESON_GATE(gxbb_vclk2_venci1, HHI_GCLK_OTHER, 2); |
| static MESON_GATE(gxbb_vclk2_vencp0, HHI_GCLK_OTHER, 3); |
| static MESON_GATE(gxbb_vclk2_vencp1, HHI_GCLK_OTHER, 4); |
| static MESON_GATE(gxbb_gclk_venci_int0, HHI_GCLK_OTHER, 8); |
| static MESON_GATE(gxbb_gclk_vencp_int, HHI_GCLK_OTHER, 9); |
| static MESON_GATE(gxbb_dac_clk, HHI_GCLK_OTHER, 10); |
| static MESON_GATE(gxbb_aoclk_gate, HHI_GCLK_OTHER, 14); |
| static MESON_GATE(gxbb_iec958_gate, HHI_GCLK_OTHER, 16); |
| static MESON_GATE(gxbb_enc480p, HHI_GCLK_OTHER, 20); |
| static MESON_GATE(gxbb_rng1, HHI_GCLK_OTHER, 21); |
| static MESON_GATE(gxbb_gclk_venci_int1, HHI_GCLK_OTHER, 22); |
| static MESON_GATE(gxbb_vclk2_venclmcc, HHI_GCLK_OTHER, 24); |
| static MESON_GATE(gxbb_vclk2_vencl, HHI_GCLK_OTHER, 25); |
| static MESON_GATE(gxbb_vclk_other, HHI_GCLK_OTHER, 26); |
| static MESON_GATE(gxbb_edp, HHI_GCLK_OTHER, 31); |
| |
| /* Always On (AO) domain gates */ |
| |
| static MESON_GATE(gxbb_ao_media_cpu, HHI_GCLK_AO, 0); |
| static MESON_GATE(gxbb_ao_ahb_sram, HHI_GCLK_AO, 1); |
| static MESON_GATE(gxbb_ao_ahb_bus, HHI_GCLK_AO, 2); |
| static MESON_GATE(gxbb_ao_iface, HHI_GCLK_AO, 3); |
| static MESON_GATE(gxbb_ao_i2c, HHI_GCLK_AO, 4); |
| |
| /* Array of all clocks provided by this provider */ |
| |
| static struct clk_hw_onecell_data gxbb_hw_onecell_data = { |
| .hws = { |
| [CLKID_SYS_PLL] = &gxbb_sys_pll.hw, |
| [CLKID_CPUCLK] = &gxbb_cpu_clk.hw, |
| [CLKID_HDMI_PLL] = &gxbb_hdmi_pll.hw, |
| [CLKID_FIXED_PLL] = &gxbb_fixed_pll.hw, |
| [CLKID_FCLK_DIV2] = &gxbb_fclk_div2.hw, |
| [CLKID_FCLK_DIV3] = &gxbb_fclk_div3.hw, |
| [CLKID_FCLK_DIV4] = &gxbb_fclk_div4.hw, |
| [CLKID_FCLK_DIV5] = &gxbb_fclk_div5.hw, |
| [CLKID_FCLK_DIV7] = &gxbb_fclk_div7.hw, |
| [CLKID_GP0_PLL] = &gxbb_gp0_pll.hw, |
| [CLKID_MPEG_SEL] = &gxbb_mpeg_clk_sel.hw, |
| [CLKID_MPEG_DIV] = &gxbb_mpeg_clk_div.hw, |
| [CLKID_CLK81] = &gxbb_clk81.hw, |
| [CLKID_MPLL0] = &gxbb_mpll0.hw, |
| [CLKID_MPLL1] = &gxbb_mpll1.hw, |
| [CLKID_MPLL2] = &gxbb_mpll2.hw, |
| [CLKID_DDR] = &gxbb_ddr.hw, |
| [CLKID_DOS] = &gxbb_dos.hw, |
| [CLKID_ISA] = &gxbb_isa.hw, |
| [CLKID_PL301] = &gxbb_pl301.hw, |
| [CLKID_PERIPHS] = &gxbb_periphs.hw, |
| [CLKID_SPICC] = &gxbb_spicc.hw, |
| [CLKID_I2C] = &gxbb_i2c.hw, |
| [CLKID_SAR_ADC] = &gxbb_sar_adc.hw, |
| [CLKID_SMART_CARD] = &gxbb_smart_card.hw, |
| [CLKID_RNG0] = &gxbb_rng0.hw, |
| [CLKID_UART0] = &gxbb_uart0.hw, |
| [CLKID_SDHC] = &gxbb_sdhc.hw, |
| [CLKID_STREAM] = &gxbb_stream.hw, |
| [CLKID_ASYNC_FIFO] = &gxbb_async_fifo.hw, |
| [CLKID_SDIO] = &gxbb_sdio.hw, |
| [CLKID_ABUF] = &gxbb_abuf.hw, |
| [CLKID_HIU_IFACE] = &gxbb_hiu_iface.hw, |
| [CLKID_ASSIST_MISC] = &gxbb_assist_misc.hw, |
| [CLKID_SPI] = &gxbb_spi.hw, |
| [CLKID_I2S_SPDIF] = &gxbb_i2s_spdif.hw, |
| [CLKID_ETH] = &gxbb_eth.hw, |
| [CLKID_DEMUX] = &gxbb_demux.hw, |
| [CLKID_AIU_GLUE] = &gxbb_aiu_glue.hw, |
| [CLKID_IEC958] = &gxbb_iec958.hw, |
| [CLKID_I2S_OUT] = &gxbb_i2s_out.hw, |
| [CLKID_AMCLK] = &gxbb_amclk.hw, |
| [CLKID_AIFIFO2] = &gxbb_aififo2.hw, |
| [CLKID_MIXER] = &gxbb_mixer.hw, |
| [CLKID_MIXER_IFACE] = &gxbb_mixer_iface.hw, |
| [CLKID_ADC] = &gxbb_adc.hw, |
| [CLKID_BLKMV] = &gxbb_blkmv.hw, |
| [CLKID_AIU] = &gxbb_aiu.hw, |
| [CLKID_UART1] = &gxbb_uart1.hw, |
| [CLKID_G2D] = &gxbb_g2d.hw, |
| [CLKID_USB0] = &gxbb_usb0.hw, |
| [CLKID_USB1] = &gxbb_usb1.hw, |
| [CLKID_RESET] = &gxbb_reset.hw, |
| [CLKID_NAND] = &gxbb_nand.hw, |
| [CLKID_DOS_PARSER] = &gxbb_dos_parser.hw, |
| [CLKID_USB] = &gxbb_usb.hw, |
| [CLKID_VDIN1] = &gxbb_vdin1.hw, |
| [CLKID_AHB_ARB0] = &gxbb_ahb_arb0.hw, |
| [CLKID_EFUSE] = &gxbb_efuse.hw, |
| [CLKID_BOOT_ROM] = &gxbb_boot_rom.hw, |
| [CLKID_AHB_DATA_BUS] = &gxbb_ahb_data_bus.hw, |
| [CLKID_AHB_CTRL_BUS] = &gxbb_ahb_ctrl_bus.hw, |
| [CLKID_HDMI_INTR_SYNC] = &gxbb_hdmi_intr_sync.hw, |
| [CLKID_HDMI_PCLK] = &gxbb_hdmi_pclk.hw, |
| [CLKID_USB1_DDR_BRIDGE] = &gxbb_usb1_ddr_bridge.hw, |
| [CLKID_USB0_DDR_BRIDGE] = &gxbb_usb0_ddr_bridge.hw, |
| [CLKID_MMC_PCLK] = &gxbb_mmc_pclk.hw, |
| [CLKID_DVIN] = &gxbb_dvin.hw, |
| [CLKID_UART2] = &gxbb_uart2.hw, |
| [CLKID_SANA] = &gxbb_sana.hw, |
| [CLKID_VPU_INTR] = &gxbb_vpu_intr.hw, |
| [CLKID_SEC_AHB_AHB3_BRIDGE] = &gxbb_sec_ahb_ahb3_bridge.hw, |
| [CLKID_CLK81_A53] = &gxbb_clk81_a53.hw, |
| [CLKID_VCLK2_VENCI0] = &gxbb_vclk2_venci0.hw, |
| [CLKID_VCLK2_VENCI1] = &gxbb_vclk2_venci1.hw, |
| [CLKID_VCLK2_VENCP0] = &gxbb_vclk2_vencp0.hw, |
| [CLKID_VCLK2_VENCP1] = &gxbb_vclk2_vencp1.hw, |
| [CLKID_GCLK_VENCI_INT0] = &gxbb_gclk_venci_int0.hw, |
| [CLKID_GCLK_VENCI_INT] = &gxbb_gclk_vencp_int.hw, |
| [CLKID_DAC_CLK] = &gxbb_dac_clk.hw, |
| [CLKID_AOCLK_GATE] = &gxbb_aoclk_gate.hw, |
| [CLKID_IEC958_GATE] = &gxbb_iec958_gate.hw, |
| [CLKID_ENC480P] = &gxbb_enc480p.hw, |
| [CLKID_RNG1] = &gxbb_rng1.hw, |
| [CLKID_GCLK_VENCI_INT1] = &gxbb_gclk_venci_int1.hw, |
| [CLKID_VCLK2_VENCLMCC] = &gxbb_vclk2_venclmcc.hw, |
| [CLKID_VCLK2_VENCL] = &gxbb_vclk2_vencl.hw, |
| [CLKID_VCLK_OTHER] = &gxbb_vclk_other.hw, |
| [CLKID_EDP] = &gxbb_edp.hw, |
| [CLKID_AO_MEDIA_CPU] = &gxbb_ao_media_cpu.hw, |
| [CLKID_AO_AHB_SRAM] = &gxbb_ao_ahb_sram.hw, |
| [CLKID_AO_AHB_BUS] = &gxbb_ao_ahb_bus.hw, |
| [CLKID_AO_IFACE] = &gxbb_ao_iface.hw, |
| [CLKID_AO_I2C] = &gxbb_ao_i2c.hw, |
| [CLKID_SD_EMMC_A] = &gxbb_emmc_a.hw, |
| [CLKID_SD_EMMC_B] = &gxbb_emmc_b.hw, |
| [CLKID_SD_EMMC_C] = &gxbb_emmc_c.hw, |
| [CLKID_SAR_ADC_CLK] = &gxbb_sar_adc_clk.hw, |
| [CLKID_SAR_ADC_SEL] = &gxbb_sar_adc_clk_sel.hw, |
| [CLKID_SAR_ADC_DIV] = &gxbb_sar_adc_clk_div.hw, |
| }, |
| .num = NR_CLKS, |
| }; |
| |
| /* Convenience tables to populate base addresses in .probe */ |
| |
| static struct meson_clk_pll *const gxbb_clk_plls[] = { |
| &gxbb_fixed_pll, |
| &gxbb_hdmi_pll, |
| &gxbb_sys_pll, |
| &gxbb_gp0_pll, |
| }; |
| |
| static struct meson_clk_mpll *const gxbb_clk_mplls[] = { |
| &gxbb_mpll0, |
| &gxbb_mpll1, |
| &gxbb_mpll2, |
| }; |
| |
| static struct clk_gate *gxbb_clk_gates[] = { |
| &gxbb_clk81, |
| &gxbb_ddr, |
| &gxbb_dos, |
| &gxbb_isa, |
| &gxbb_pl301, |
| &gxbb_periphs, |
| &gxbb_spicc, |
| &gxbb_i2c, |
| &gxbb_sar_adc, |
| &gxbb_smart_card, |
| &gxbb_rng0, |
| &gxbb_uart0, |
| &gxbb_sdhc, |
| &gxbb_stream, |
| &gxbb_async_fifo, |
| &gxbb_sdio, |
| &gxbb_abuf, |
| &gxbb_hiu_iface, |
| &gxbb_assist_misc, |
| &gxbb_spi, |
| &gxbb_i2s_spdif, |
| &gxbb_eth, |
| &gxbb_demux, |
| &gxbb_aiu_glue, |
| &gxbb_iec958, |
| &gxbb_i2s_out, |
| &gxbb_amclk, |
| &gxbb_aififo2, |
| &gxbb_mixer, |
| &gxbb_mixer_iface, |
| &gxbb_adc, |
| &gxbb_blkmv, |
| &gxbb_aiu, |
| &gxbb_uart1, |
| &gxbb_g2d, |
| &gxbb_usb0, |
| &gxbb_usb1, |
| &gxbb_reset, |
| &gxbb_nand, |
| &gxbb_dos_parser, |
| &gxbb_usb, |
| &gxbb_vdin1, |
| &gxbb_ahb_arb0, |
| &gxbb_efuse, |
| &gxbb_boot_rom, |
| &gxbb_ahb_data_bus, |
| &gxbb_ahb_ctrl_bus, |
| &gxbb_hdmi_intr_sync, |
| &gxbb_hdmi_pclk, |
| &gxbb_usb1_ddr_bridge, |
| &gxbb_usb0_ddr_bridge, |
| &gxbb_mmc_pclk, |
| &gxbb_dvin, |
| &gxbb_uart2, |
| &gxbb_sana, |
| &gxbb_vpu_intr, |
| &gxbb_sec_ahb_ahb3_bridge, |
| &gxbb_clk81_a53, |
| &gxbb_vclk2_venci0, |
| &gxbb_vclk2_venci1, |
| &gxbb_vclk2_vencp0, |
| &gxbb_vclk2_vencp1, |
| &gxbb_gclk_venci_int0, |
| &gxbb_gclk_vencp_int, |
| &gxbb_dac_clk, |
| &gxbb_aoclk_gate, |
| &gxbb_iec958_gate, |
| &gxbb_enc480p, |
| &gxbb_rng1, |
| &gxbb_gclk_venci_int1, |
| &gxbb_vclk2_venclmcc, |
| &gxbb_vclk2_vencl, |
| &gxbb_vclk_other, |
| &gxbb_edp, |
| &gxbb_ao_media_cpu, |
| &gxbb_ao_ahb_sram, |
| &gxbb_ao_ahb_bus, |
| &gxbb_ao_iface, |
| &gxbb_ao_i2c, |
| &gxbb_emmc_a, |
| &gxbb_emmc_b, |
| &gxbb_emmc_c, |
| &gxbb_sar_adc_clk, |
| }; |
| |
| static int gxbb_clkc_probe(struct platform_device *pdev) |
| { |
| void __iomem *clk_base; |
| int ret, clkid, i; |
| struct clk_hw *parent_hw; |
| struct clk *parent_clk; |
| struct device *dev = &pdev->dev; |
| |
| /* Generic clocks and PLLs */ |
| clk_base = of_iomap(dev->of_node, 0); |
| if (!clk_base) { |
| pr_err("%s: Unable to map clk base\n", __func__); |
| return -ENXIO; |
| } |
| |
| /* Populate base address for PLLs */ |
| for (i = 0; i < ARRAY_SIZE(gxbb_clk_plls); i++) |
| gxbb_clk_plls[i]->base = clk_base; |
| |
| /* Populate base address for MPLLs */ |
| for (i = 0; i < ARRAY_SIZE(gxbb_clk_mplls); i++) |
| gxbb_clk_mplls[i]->base = clk_base; |
| |
| /* Populate the base address for CPU clk */ |
| gxbb_cpu_clk.base = clk_base; |
| |
| /* Populate the base address for the MPEG clks */ |
| gxbb_mpeg_clk_sel.reg = clk_base + (u64)gxbb_mpeg_clk_sel.reg; |
| gxbb_mpeg_clk_div.reg = clk_base + (u64)gxbb_mpeg_clk_div.reg; |
| |
| /* Populate the base address for the SAR ADC clks */ |
| gxbb_sar_adc_clk_sel.reg = clk_base + (u64)gxbb_sar_adc_clk_sel.reg; |
| gxbb_sar_adc_clk_div.reg = clk_base + (u64)gxbb_sar_adc_clk_div.reg; |
| |
| /* Populate base address for gates */ |
| for (i = 0; i < ARRAY_SIZE(gxbb_clk_gates); i++) |
| gxbb_clk_gates[i]->reg = clk_base + |
| (u64)gxbb_clk_gates[i]->reg; |
| |
| /* |
| * register all clks |
| */ |
| for (clkid = 0; clkid < NR_CLKS; clkid++) { |
| ret = devm_clk_hw_register(dev, gxbb_hw_onecell_data.hws[clkid]); |
| if (ret) |
| goto iounmap; |
| } |
| |
| /* |
| * Register CPU clk notifier |
| * |
| * FIXME this is wrong for a lot of reasons. First, the muxes should be |
| * struct clk_hw objects. Second, we shouldn't program the muxes in |
| * notifier handlers. The tricky programming sequence will be handled |
| * by the forthcoming coordinated clock rates mechanism once that |
| * feature is released. |
| * |
| * Furthermore, looking up the parent this way is terrible. At some |
| * point we will stop allocating a default struct clk when registering |
| * a new clk_hw, and this hack will no longer work. Releasing the ccr |
| * feature before that time solves the problem :-) |
| */ |
| parent_hw = clk_hw_get_parent(&gxbb_cpu_clk.hw); |
| parent_clk = parent_hw->clk; |
| ret = clk_notifier_register(parent_clk, &gxbb_cpu_clk.clk_nb); |
| if (ret) { |
| pr_err("%s: failed to register clock notifier for cpu_clk\n", |
| __func__); |
| goto iounmap; |
| } |
| |
| return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, |
| &gxbb_hw_onecell_data); |
| |
| iounmap: |
| iounmap(clk_base); |
| return ret; |
| } |
| |
| static const struct of_device_id gxbb_clkc_match_table[] = { |
| { .compatible = "amlogic,gxbb-clkc" }, |
| { } |
| }; |
| |
| static struct platform_driver gxbb_driver = { |
| .probe = gxbb_clkc_probe, |
| .driver = { |
| .name = "gxbb-clkc", |
| .of_match_table = gxbb_clkc_match_table, |
| }, |
| }; |
| |
| builtin_platform_driver(gxbb_driver); |