| /* |
| * Copyright (c) 2016, Linaro Limited |
| * Copyright (c) 2014, The Linux Foundation. All rights reserved. |
| * |
| * This software is licensed under the terms of the GNU General Public |
| * License version 2, as published by the Free Software Foundation, and |
| * may be copied, distributed, and modified under those terms. |
| * |
| * This program is distributed in the hope that 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. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/err.h> |
| #include <linux/export.h> |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/mutex.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <linux/soc/qcom/smd-rpm.h> |
| |
| #include <dt-bindings/clock/qcom,rpmcc.h> |
| #include <dt-bindings/mfd/qcom-rpm.h> |
| |
| #define QCOM_RPM_KEY_SOFTWARE_ENABLE 0x6e657773 |
| #define QCOM_RPM_KEY_PIN_CTRL_CLK_BUFFER_ENABLE_KEY 0x62636370 |
| #define QCOM_RPM_SMD_KEY_RATE 0x007a484b |
| #define QCOM_RPM_SMD_KEY_ENABLE 0x62616e45 |
| #define QCOM_RPM_SMD_KEY_STATE 0x54415453 |
| #define QCOM_RPM_SCALING_ENABLE_ID 0x2 |
| |
| #define __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, stat_id, \ |
| key) \ |
| static struct clk_smd_rpm _platform##_##_active; \ |
| static struct clk_smd_rpm _platform##_##_name = { \ |
| .rpm_res_type = (type), \ |
| .rpm_clk_id = (r_id), \ |
| .rpm_status_id = (stat_id), \ |
| .rpm_key = (key), \ |
| .peer = &_platform##_##_active, \ |
| .rate = INT_MAX, \ |
| .hw.init = &(struct clk_init_data){ \ |
| .ops = &clk_smd_rpm_ops, \ |
| .name = #_name, \ |
| .parent_names = (const char *[]){ "xo_board" }, \ |
| .num_parents = 1, \ |
| }, \ |
| }; \ |
| static struct clk_smd_rpm _platform##_##_active = { \ |
| .rpm_res_type = (type), \ |
| .rpm_clk_id = (r_id), \ |
| .rpm_status_id = (stat_id), \ |
| .active_only = true, \ |
| .rpm_key = (key), \ |
| .peer = &_platform##_##_name, \ |
| .rate = INT_MAX, \ |
| .hw.init = &(struct clk_init_data){ \ |
| .ops = &clk_smd_rpm_ops, \ |
| .name = #_active, \ |
| .parent_names = (const char *[]){ "xo_board" }, \ |
| .num_parents = 1, \ |
| }, \ |
| } |
| |
| #define __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, r_id, \ |
| stat_id, r, key) \ |
| static struct clk_smd_rpm _platform##_##_active; \ |
| static struct clk_smd_rpm _platform##_##_name = { \ |
| .rpm_res_type = (type), \ |
| .rpm_clk_id = (r_id), \ |
| .rpm_status_id = (stat_id), \ |
| .rpm_key = (key), \ |
| .branch = true, \ |
| .peer = &_platform##_##_active, \ |
| .rate = (r), \ |
| .hw.init = &(struct clk_init_data){ \ |
| .ops = &clk_smd_rpm_branch_ops, \ |
| .name = #_name, \ |
| .parent_names = (const char *[]){ "xo_board" }, \ |
| .num_parents = 1, \ |
| }, \ |
| }; \ |
| static struct clk_smd_rpm _platform##_##_active = { \ |
| .rpm_res_type = (type), \ |
| .rpm_clk_id = (r_id), \ |
| .rpm_status_id = (stat_id), \ |
| .active_only = true, \ |
| .rpm_key = (key), \ |
| .branch = true, \ |
| .peer = &_platform##_##_name, \ |
| .rate = (r), \ |
| .hw.init = &(struct clk_init_data){ \ |
| .ops = &clk_smd_rpm_branch_ops, \ |
| .name = #_active, \ |
| .parent_names = (const char *[]){ "xo_board" }, \ |
| .num_parents = 1, \ |
| }, \ |
| } |
| |
| #define DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id) \ |
| __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, \ |
| 0, QCOM_RPM_SMD_KEY_RATE) |
| |
| #define DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, r_id, r) \ |
| __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, \ |
| r_id, 0, r, QCOM_RPM_SMD_KEY_ENABLE) |
| |
| #define DEFINE_CLK_SMD_RPM_QDSS(_platform, _name, _active, type, r_id) \ |
| __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, \ |
| 0, QCOM_RPM_SMD_KEY_STATE) |
| |
| #define DEFINE_CLK_SMD_RPM_XO_BUFFER(_platform, _name, _active, r_id) \ |
| __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, \ |
| QCOM_SMD_RPM_CLK_BUF_A, r_id, 0, 1000, \ |
| QCOM_RPM_KEY_SOFTWARE_ENABLE) |
| |
| #define DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(_platform, _name, _active, r_id) \ |
| __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, \ |
| QCOM_SMD_RPM_CLK_BUF_A, r_id, 0, 1000, \ |
| QCOM_RPM_KEY_PIN_CTRL_CLK_BUFFER_ENABLE_KEY) |
| |
| #define to_clk_smd_rpm(_hw) container_of(_hw, struct clk_smd_rpm, hw) |
| |
| struct clk_smd_rpm { |
| const int rpm_res_type; |
| const int rpm_key; |
| const int rpm_clk_id; |
| const int rpm_status_id; |
| const bool active_only; |
| bool enabled; |
| bool branch; |
| struct clk_smd_rpm *peer; |
| struct clk_hw hw; |
| unsigned long rate; |
| struct qcom_smd_rpm *rpm; |
| }; |
| |
| struct clk_smd_rpm_req { |
| __le32 key; |
| __le32 nbytes; |
| __le32 value; |
| }; |
| |
| struct rpm_cc { |
| struct qcom_rpm *rpm; |
| struct clk_smd_rpm **clks; |
| size_t num_clks; |
| }; |
| |
| struct rpm_smd_clk_desc { |
| struct clk_smd_rpm **clks; |
| size_t num_clks; |
| }; |
| |
| static DEFINE_MUTEX(rpm_smd_clk_lock); |
| |
| static int clk_smd_rpm_handoff(struct clk_smd_rpm *r) |
| { |
| int ret; |
| struct clk_smd_rpm_req req = { |
| .key = cpu_to_le32(r->rpm_key), |
| .nbytes = cpu_to_le32(sizeof(u32)), |
| .value = cpu_to_le32(r->branch ? 1 : INT_MAX), |
| }; |
| |
| ret = qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_ACTIVE_STATE, |
| r->rpm_res_type, r->rpm_clk_id, &req, |
| sizeof(req)); |
| if (ret) |
| return ret; |
| ret = qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_SLEEP_STATE, |
| r->rpm_res_type, r->rpm_clk_id, &req, |
| sizeof(req)); |
| if (ret) |
| return ret; |
| |
| return 0; |
| } |
| |
| static int clk_smd_rpm_set_rate_active(struct clk_smd_rpm *r, |
| unsigned long rate) |
| { |
| struct clk_smd_rpm_req req = { |
| .key = cpu_to_le32(r->rpm_key), |
| .nbytes = cpu_to_le32(sizeof(u32)), |
| .value = cpu_to_le32(DIV_ROUND_UP(rate, 1000)), /* to kHz */ |
| }; |
| |
| return qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_ACTIVE_STATE, |
| r->rpm_res_type, r->rpm_clk_id, &req, |
| sizeof(req)); |
| } |
| |
| static int clk_smd_rpm_set_rate_sleep(struct clk_smd_rpm *r, |
| unsigned long rate) |
| { |
| struct clk_smd_rpm_req req = { |
| .key = cpu_to_le32(r->rpm_key), |
| .nbytes = cpu_to_le32(sizeof(u32)), |
| .value = cpu_to_le32(DIV_ROUND_UP(rate, 1000)), /* to kHz */ |
| }; |
| |
| return qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_SLEEP_STATE, |
| r->rpm_res_type, r->rpm_clk_id, &req, |
| sizeof(req)); |
| } |
| |
| static void to_active_sleep(struct clk_smd_rpm *r, unsigned long rate, |
| unsigned long *active, unsigned long *sleep) |
| { |
| *active = rate; |
| |
| /* |
| * Active-only clocks don't care what the rate is during sleep. So, |
| * they vote for zero. |
| */ |
| if (r->active_only) |
| *sleep = 0; |
| else |
| *sleep = *active; |
| } |
| |
| static int clk_smd_rpm_prepare(struct clk_hw *hw) |
| { |
| struct clk_smd_rpm *r = to_clk_smd_rpm(hw); |
| struct clk_smd_rpm *peer = r->peer; |
| unsigned long this_rate = 0, this_sleep_rate = 0; |
| unsigned long peer_rate = 0, peer_sleep_rate = 0; |
| unsigned long active_rate, sleep_rate; |
| int ret = 0; |
| |
| mutex_lock(&rpm_smd_clk_lock); |
| |
| /* Don't send requests to the RPM if the rate has not been set. */ |
| if (!r->rate) |
| goto out; |
| |
| to_active_sleep(r, r->rate, &this_rate, &this_sleep_rate); |
| |
| /* Take peer clock's rate into account only if it's enabled. */ |
| if (peer->enabled) |
| to_active_sleep(peer, peer->rate, |
| &peer_rate, &peer_sleep_rate); |
| |
| active_rate = max(this_rate, peer_rate); |
| |
| if (r->branch) |
| active_rate = !!active_rate; |
| |
| ret = clk_smd_rpm_set_rate_active(r, active_rate); |
| if (ret) |
| goto out; |
| |
| sleep_rate = max(this_sleep_rate, peer_sleep_rate); |
| if (r->branch) |
| sleep_rate = !!sleep_rate; |
| |
| ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); |
| if (ret) |
| /* Undo the active set vote and restore it */ |
| ret = clk_smd_rpm_set_rate_active(r, peer_rate); |
| |
| out: |
| if (!ret) |
| r->enabled = true; |
| |
| mutex_unlock(&rpm_smd_clk_lock); |
| |
| return ret; |
| } |
| |
| static void clk_smd_rpm_unprepare(struct clk_hw *hw) |
| { |
| struct clk_smd_rpm *r = to_clk_smd_rpm(hw); |
| struct clk_smd_rpm *peer = r->peer; |
| unsigned long peer_rate = 0, peer_sleep_rate = 0; |
| unsigned long active_rate, sleep_rate; |
| int ret; |
| |
| mutex_lock(&rpm_smd_clk_lock); |
| |
| if (!r->rate) |
| goto out; |
| |
| /* Take peer clock's rate into account only if it's enabled. */ |
| if (peer->enabled) |
| to_active_sleep(peer, peer->rate, &peer_rate, |
| &peer_sleep_rate); |
| |
| active_rate = r->branch ? !!peer_rate : peer_rate; |
| ret = clk_smd_rpm_set_rate_active(r, active_rate); |
| if (ret) |
| goto out; |
| |
| sleep_rate = r->branch ? !!peer_sleep_rate : peer_sleep_rate; |
| ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); |
| if (ret) |
| goto out; |
| |
| r->enabled = false; |
| |
| out: |
| mutex_unlock(&rpm_smd_clk_lock); |
| } |
| |
| static int clk_smd_rpm_set_rate(struct clk_hw *hw, unsigned long rate, |
| unsigned long parent_rate) |
| { |
| struct clk_smd_rpm *r = to_clk_smd_rpm(hw); |
| struct clk_smd_rpm *peer = r->peer; |
| unsigned long active_rate, sleep_rate; |
| unsigned long this_rate = 0, this_sleep_rate = 0; |
| unsigned long peer_rate = 0, peer_sleep_rate = 0; |
| int ret = 0; |
| |
| mutex_lock(&rpm_smd_clk_lock); |
| |
| if (!r->enabled) |
| goto out; |
| |
| to_active_sleep(r, rate, &this_rate, &this_sleep_rate); |
| |
| /* Take peer clock's rate into account only if it's enabled. */ |
| if (peer->enabled) |
| to_active_sleep(peer, peer->rate, |
| &peer_rate, &peer_sleep_rate); |
| |
| active_rate = max(this_rate, peer_rate); |
| ret = clk_smd_rpm_set_rate_active(r, active_rate); |
| if (ret) |
| goto out; |
| |
| sleep_rate = max(this_sleep_rate, peer_sleep_rate); |
| ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); |
| if (ret) |
| goto out; |
| |
| r->rate = rate; |
| |
| out: |
| mutex_unlock(&rpm_smd_clk_lock); |
| |
| return ret; |
| } |
| |
| static long clk_smd_rpm_round_rate(struct clk_hw *hw, unsigned long rate, |
| unsigned long *parent_rate) |
| { |
| /* |
| * RPM handles rate rounding and we don't have a way to |
| * know what the rate will be, so just return whatever |
| * rate is requested. |
| */ |
| return rate; |
| } |
| |
| static unsigned long clk_smd_rpm_recalc_rate(struct clk_hw *hw, |
| unsigned long parent_rate) |
| { |
| struct clk_smd_rpm *r = to_clk_smd_rpm(hw); |
| |
| /* |
| * RPM handles rate rounding and we don't have a way to |
| * know what the rate will be, so just return whatever |
| * rate was set. |
| */ |
| return r->rate; |
| } |
| |
| static int clk_smd_rpm_enable_scaling(struct qcom_smd_rpm *rpm) |
| { |
| int ret; |
| struct clk_smd_rpm_req req = { |
| .key = cpu_to_le32(QCOM_RPM_SMD_KEY_ENABLE), |
| .nbytes = cpu_to_le32(sizeof(u32)), |
| .value = cpu_to_le32(1), |
| }; |
| |
| ret = qcom_rpm_smd_write(rpm, QCOM_SMD_RPM_SLEEP_STATE, |
| QCOM_SMD_RPM_MISC_CLK, |
| QCOM_RPM_SCALING_ENABLE_ID, &req, sizeof(req)); |
| if (ret) { |
| pr_err("RPM clock scaling (sleep set) not enabled!\n"); |
| return ret; |
| } |
| |
| ret = qcom_rpm_smd_write(rpm, QCOM_SMD_RPM_ACTIVE_STATE, |
| QCOM_SMD_RPM_MISC_CLK, |
| QCOM_RPM_SCALING_ENABLE_ID, &req, sizeof(req)); |
| if (ret) { |
| pr_err("RPM clock scaling (active set) not enabled!\n"); |
| return ret; |
| } |
| |
| pr_debug("%s: RPM clock scaling is enabled\n", __func__); |
| return 0; |
| } |
| |
| static const struct clk_ops clk_smd_rpm_ops = { |
| .prepare = clk_smd_rpm_prepare, |
| .unprepare = clk_smd_rpm_unprepare, |
| .set_rate = clk_smd_rpm_set_rate, |
| .round_rate = clk_smd_rpm_round_rate, |
| .recalc_rate = clk_smd_rpm_recalc_rate, |
| }; |
| |
| static const struct clk_ops clk_smd_rpm_branch_ops = { |
| .prepare = clk_smd_rpm_prepare, |
| .unprepare = clk_smd_rpm_unprepare, |
| }; |
| |
| /* msm8916 */ |
| DEFINE_CLK_SMD_RPM(msm8916, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8916, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); |
| DEFINE_CLK_SMD_RPM(msm8916, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); |
| DEFINE_CLK_SMD_RPM_QDSS(msm8916, qdss_clk, qdss_a_clk, QCOM_SMD_RPM_MISC_CLK, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, bb_clk1, bb_clk1_a, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, bb_clk2, bb_clk2_a, 2); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, rf_clk1, rf_clk1_a, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, rf_clk2, rf_clk2_a, 5); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, bb_clk1_pin, bb_clk1_a_pin, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, bb_clk2_pin, bb_clk2_a_pin, 2); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, rf_clk1_pin, rf_clk1_a_pin, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, rf_clk2_pin, rf_clk2_a_pin, 5); |
| |
| static struct clk_smd_rpm *msm8916_clks[] = { |
| [RPM_SMD_PCNOC_CLK] = &msm8916_pcnoc_clk, |
| [RPM_SMD_PCNOC_A_CLK] = &msm8916_pcnoc_a_clk, |
| [RPM_SMD_SNOC_CLK] = &msm8916_snoc_clk, |
| [RPM_SMD_SNOC_A_CLK] = &msm8916_snoc_a_clk, |
| [RPM_SMD_BIMC_CLK] = &msm8916_bimc_clk, |
| [RPM_SMD_BIMC_A_CLK] = &msm8916_bimc_a_clk, |
| [RPM_SMD_QDSS_CLK] = &msm8916_qdss_clk, |
| [RPM_SMD_QDSS_A_CLK] = &msm8916_qdss_a_clk, |
| [RPM_SMD_BB_CLK1] = &msm8916_bb_clk1, |
| [RPM_SMD_BB_CLK1_A] = &msm8916_bb_clk1_a, |
| [RPM_SMD_BB_CLK2] = &msm8916_bb_clk2, |
| [RPM_SMD_BB_CLK2_A] = &msm8916_bb_clk2_a, |
| [RPM_SMD_RF_CLK1] = &msm8916_rf_clk1, |
| [RPM_SMD_RF_CLK1_A] = &msm8916_rf_clk1_a, |
| [RPM_SMD_RF_CLK2] = &msm8916_rf_clk2, |
| [RPM_SMD_RF_CLK2_A] = &msm8916_rf_clk2_a, |
| [RPM_SMD_BB_CLK1_PIN] = &msm8916_bb_clk1_pin, |
| [RPM_SMD_BB_CLK1_A_PIN] = &msm8916_bb_clk1_a_pin, |
| [RPM_SMD_BB_CLK2_PIN] = &msm8916_bb_clk2_pin, |
| [RPM_SMD_BB_CLK2_A_PIN] = &msm8916_bb_clk2_a_pin, |
| [RPM_SMD_RF_CLK1_PIN] = &msm8916_rf_clk1_pin, |
| [RPM_SMD_RF_CLK1_A_PIN] = &msm8916_rf_clk1_a_pin, |
| [RPM_SMD_RF_CLK2_PIN] = &msm8916_rf_clk2_pin, |
| [RPM_SMD_RF_CLK2_A_PIN] = &msm8916_rf_clk2_a_pin, |
| }; |
| |
| static const struct rpm_smd_clk_desc rpm_clk_msm8916 = { |
| .clks = msm8916_clks, |
| .num_clks = ARRAY_SIZE(msm8916_clks), |
| }; |
| |
| /* msm8974 */ |
| DEFINE_CLK_SMD_RPM(msm8974, pnoc_clk, pnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8974, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); |
| DEFINE_CLK_SMD_RPM(msm8974, cnoc_clk, cnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 2); |
| DEFINE_CLK_SMD_RPM(msm8974, mmssnoc_ahb_clk, mmssnoc_ahb_a_clk, QCOM_SMD_RPM_BUS_CLK, 3); |
| DEFINE_CLK_SMD_RPM(msm8974, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8974, gfx3d_clk_src, gfx3d_a_clk_src, QCOM_SMD_RPM_MEM_CLK, 1); |
| DEFINE_CLK_SMD_RPM(msm8974, ocmemgx_clk, ocmemgx_a_clk, QCOM_SMD_RPM_MEM_CLK, 2); |
| DEFINE_CLK_SMD_RPM_QDSS(msm8974, qdss_clk, qdss_a_clk, QCOM_SMD_RPM_MISC_CLK, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, cxo_d0, cxo_d0_a, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, cxo_d1, cxo_d1_a, 2); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, cxo_a0, cxo_a0_a, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, cxo_a1, cxo_a1_a, 5); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, cxo_a2, cxo_a2_a, 6); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, diff_clk, diff_a_clk, 7); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, div_clk1, div_a_clk1, 11); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8974, div_clk2, div_a_clk2, 12); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8974, cxo_d0_pin, cxo_d0_a_pin, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8974, cxo_d1_pin, cxo_d1_a_pin, 2); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8974, cxo_a0_pin, cxo_a0_a_pin, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8974, cxo_a1_pin, cxo_a1_a_pin, 5); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8974, cxo_a2_pin, cxo_a2_a_pin, 6); |
| |
| static struct clk_smd_rpm *msm8974_clks[] = { |
| [RPM_SMD_PNOC_CLK] = &msm8974_pnoc_clk, |
| [RPM_SMD_PNOC_A_CLK] = &msm8974_pnoc_a_clk, |
| [RPM_SMD_SNOC_CLK] = &msm8974_snoc_clk, |
| [RPM_SMD_SNOC_A_CLK] = &msm8974_snoc_a_clk, |
| [RPM_SMD_CNOC_CLK] = &msm8974_cnoc_clk, |
| [RPM_SMD_CNOC_A_CLK] = &msm8974_cnoc_a_clk, |
| [RPM_SMD_MMSSNOC_AHB_CLK] = &msm8974_mmssnoc_ahb_clk, |
| [RPM_SMD_MMSSNOC_AHB_A_CLK] = &msm8974_mmssnoc_ahb_a_clk, |
| [RPM_SMD_BIMC_CLK] = &msm8974_bimc_clk, |
| [RPM_SMD_BIMC_A_CLK] = &msm8974_bimc_a_clk, |
| [RPM_SMD_OCMEMGX_CLK] = &msm8974_ocmemgx_clk, |
| [RPM_SMD_OCMEMGX_A_CLK] = &msm8974_ocmemgx_a_clk, |
| [RPM_SMD_QDSS_CLK] = &msm8974_qdss_clk, |
| [RPM_SMD_QDSS_A_CLK] = &msm8974_qdss_a_clk, |
| [RPM_SMD_CXO_D0] = &msm8974_cxo_d0, |
| [RPM_SMD_CXO_D0_A] = &msm8974_cxo_d0_a, |
| [RPM_SMD_CXO_D1] = &msm8974_cxo_d1, |
| [RPM_SMD_CXO_D1_A] = &msm8974_cxo_d1_a, |
| [RPM_SMD_CXO_A0] = &msm8974_cxo_a0, |
| [RPM_SMD_CXO_A0_A] = &msm8974_cxo_a0_a, |
| [RPM_SMD_CXO_A1] = &msm8974_cxo_a1, |
| [RPM_SMD_CXO_A1_A] = &msm8974_cxo_a1_a, |
| [RPM_SMD_CXO_A2] = &msm8974_cxo_a2, |
| [RPM_SMD_CXO_A2_A] = &msm8974_cxo_a2_a, |
| [RPM_SMD_DIFF_CLK] = &msm8974_diff_clk, |
| [RPM_SMD_DIFF_A_CLK] = &msm8974_diff_a_clk, |
| [RPM_SMD_DIV_CLK1] = &msm8974_div_clk1, |
| [RPM_SMD_DIV_A_CLK1] = &msm8974_div_a_clk1, |
| [RPM_SMD_DIV_CLK2] = &msm8974_div_clk2, |
| [RPM_SMD_DIV_A_CLK2] = &msm8974_div_a_clk2, |
| [RPM_SMD_CXO_D0_PIN] = &msm8974_cxo_d0_pin, |
| [RPM_SMD_CXO_D0_A_PIN] = &msm8974_cxo_d0_a_pin, |
| [RPM_SMD_CXO_D1_PIN] = &msm8974_cxo_d1_pin, |
| [RPM_SMD_CXO_D1_A_PIN] = &msm8974_cxo_d1_a_pin, |
| [RPM_SMD_CXO_A0_PIN] = &msm8974_cxo_a0_pin, |
| [RPM_SMD_CXO_A0_A_PIN] = &msm8974_cxo_a0_a_pin, |
| [RPM_SMD_CXO_A1_PIN] = &msm8974_cxo_a1_pin, |
| [RPM_SMD_CXO_A1_A_PIN] = &msm8974_cxo_a1_a_pin, |
| [RPM_SMD_CXO_A2_PIN] = &msm8974_cxo_a2_pin, |
| [RPM_SMD_CXO_A2_A_PIN] = &msm8974_cxo_a2_a_pin, |
| }; |
| |
| static const struct rpm_smd_clk_desc rpm_clk_msm8974 = { |
| .clks = msm8974_clks, |
| .num_clks = ARRAY_SIZE(msm8974_clks), |
| }; |
| |
| /* msm8996 */ |
| DEFINE_CLK_SMD_RPM(msm8996, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8996, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); |
| DEFINE_CLK_SMD_RPM(msm8996, cnoc_clk, cnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 2); |
| DEFINE_CLK_SMD_RPM(msm8996, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8996, mmssnoc_axi_rpm_clk, mmssnoc_axi_rpm_a_clk, |
| QCOM_SMD_RPM_MMAXI_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8996, ipa_clk, ipa_a_clk, QCOM_SMD_RPM_IPA_CLK, 0); |
| DEFINE_CLK_SMD_RPM(msm8996, ce1_clk, ce1_a_clk, QCOM_SMD_RPM_CE_CLK, 0); |
| DEFINE_CLK_SMD_RPM_BRANCH(msm8996, aggre1_noc_clk, aggre1_noc_a_clk, |
| QCOM_SMD_RPM_AGGR_CLK, 1, 1000); |
| DEFINE_CLK_SMD_RPM_BRANCH(msm8996, aggre2_noc_clk, aggre2_noc_a_clk, |
| QCOM_SMD_RPM_AGGR_CLK, 2, 1000); |
| DEFINE_CLK_SMD_RPM_QDSS(msm8996, qdss_clk, qdss_a_clk, |
| QCOM_SMD_RPM_MISC_CLK, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, bb_clk1, bb_clk1_a, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, bb_clk2, bb_clk2_a, 2); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, rf_clk1, rf_clk1_a, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, rf_clk2, rf_clk2_a, 5); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, ln_bb_clk, ln_bb_a_clk, 8); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk1, div_clk1_a, 0xb); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk2, div_clk2_a, 0xc); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk3, div_clk3_a, 0xd); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, bb_clk1_pin, bb_clk1_a_pin, 1); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, bb_clk2_pin, bb_clk2_a_pin, 2); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, rf_clk1_pin, rf_clk1_a_pin, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, rf_clk2_pin, rf_clk2_a_pin, 5); |
| |
| static struct clk_smd_rpm *msm8996_clks[] = { |
| [RPM_SMD_PCNOC_CLK] = &msm8996_pcnoc_clk, |
| [RPM_SMD_PCNOC_A_CLK] = &msm8996_pcnoc_a_clk, |
| [RPM_SMD_SNOC_CLK] = &msm8996_snoc_clk, |
| [RPM_SMD_SNOC_A_CLK] = &msm8996_snoc_a_clk, |
| [RPM_SMD_CNOC_CLK] = &msm8996_cnoc_clk, |
| [RPM_SMD_CNOC_A_CLK] = &msm8996_cnoc_a_clk, |
| [RPM_SMD_BIMC_CLK] = &msm8996_bimc_clk, |
| [RPM_SMD_BIMC_A_CLK] = &msm8996_bimc_a_clk, |
| [RPM_SMD_MMAXI_CLK] = &msm8996_mmssnoc_axi_rpm_clk, |
| [RPM_SMD_MMAXI_A_CLK] = &msm8996_mmssnoc_axi_rpm_a_clk, |
| [RPM_SMD_IPA_CLK] = &msm8996_ipa_clk, |
| [RPM_SMD_IPA_A_CLK] = &msm8996_ipa_a_clk, |
| [RPM_SMD_CE1_CLK] = &msm8996_ce1_clk, |
| [RPM_SMD_CE1_A_CLK] = &msm8996_ce1_a_clk, |
| [RPM_SMD_AGGR1_NOC_CLK] = &msm8996_aggre1_noc_clk, |
| [RPM_SMD_AGGR1_NOC_A_CLK] = &msm8996_aggre1_noc_a_clk, |
| [RPM_SMD_AGGR2_NOC_CLK] = &msm8996_aggre2_noc_clk, |
| [RPM_SMD_AGGR2_NOC_A_CLK] = &msm8996_aggre2_noc_a_clk, |
| [RPM_SMD_QDSS_CLK] = &msm8996_qdss_clk, |
| [RPM_SMD_QDSS_A_CLK] = &msm8996_qdss_a_clk, |
| [RPM_SMD_BB_CLK1] = &msm8996_bb_clk1, |
| [RPM_SMD_BB_CLK1_A] = &msm8996_bb_clk1_a, |
| [RPM_SMD_BB_CLK2] = &msm8996_bb_clk2, |
| [RPM_SMD_BB_CLK2_A] = &msm8996_bb_clk2_a, |
| [RPM_SMD_RF_CLK1] = &msm8996_rf_clk1, |
| [RPM_SMD_RF_CLK1_A] = &msm8996_rf_clk1_a, |
| [RPM_SMD_RF_CLK2] = &msm8996_rf_clk2, |
| [RPM_SMD_RF_CLK2_A] = &msm8996_rf_clk2_a, |
| [RPM_SMD_LN_BB_CLK] = &msm8996_ln_bb_clk, |
| [RPM_SMD_LN_BB_A_CLK] = &msm8996_ln_bb_a_clk, |
| [RPM_SMD_DIV_CLK1] = &msm8996_div_clk1, |
| [RPM_SMD_DIV_A_CLK1] = &msm8996_div_clk1_a, |
| [RPM_SMD_DIV_CLK2] = &msm8996_div_clk2, |
| [RPM_SMD_DIV_A_CLK2] = &msm8996_div_clk2_a, |
| [RPM_SMD_DIV_CLK3] = &msm8996_div_clk3, |
| [RPM_SMD_DIV_A_CLK3] = &msm8996_div_clk3_a, |
| [RPM_SMD_BB_CLK1_PIN] = &msm8996_bb_clk1_pin, |
| [RPM_SMD_BB_CLK1_A_PIN] = &msm8996_bb_clk1_a_pin, |
| [RPM_SMD_BB_CLK2_PIN] = &msm8996_bb_clk2_pin, |
| [RPM_SMD_BB_CLK2_A_PIN] = &msm8996_bb_clk2_a_pin, |
| [RPM_SMD_RF_CLK1_PIN] = &msm8996_rf_clk1_pin, |
| [RPM_SMD_RF_CLK1_A_PIN] = &msm8996_rf_clk1_a_pin, |
| [RPM_SMD_RF_CLK2_PIN] = &msm8996_rf_clk2_pin, |
| [RPM_SMD_RF_CLK2_A_PIN] = &msm8996_rf_clk2_a_pin, |
| }; |
| |
| static const struct rpm_smd_clk_desc rpm_clk_msm8996 = { |
| .clks = msm8996_clks, |
| .num_clks = ARRAY_SIZE(msm8996_clks), |
| }; |
| |
| /* QCS404 */ |
| DEFINE_CLK_SMD_RPM_QDSS(qcs404, qdss_clk, qdss_a_clk, QCOM_SMD_RPM_MISC_CLK, 1); |
| |
| DEFINE_CLK_SMD_RPM(qcs404, pnoc_clk, pnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); |
| DEFINE_CLK_SMD_RPM(qcs404, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); |
| |
| DEFINE_CLK_SMD_RPM(qcs404, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); |
| DEFINE_CLK_SMD_RPM(qcs404, bimc_gpu_clk, bimc_gpu_a_clk, QCOM_SMD_RPM_MEM_CLK, 2); |
| |
| DEFINE_CLK_SMD_RPM(qcs404, qpic_clk, qpic_a_clk, QCOM_SMD_RPM_QPIC_CLK, 0); |
| DEFINE_CLK_SMD_RPM(qcs404, ce1_clk, ce1_a_clk, QCOM_SMD_RPM_CE_CLK, 0); |
| |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(qcs404, rf_clk1, rf_clk1_a, 4); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(qcs404, rf_clk1_pin, rf_clk1_a_pin, 4); |
| |
| DEFINE_CLK_SMD_RPM_XO_BUFFER(qcs404, ln_bb_clk, ln_bb_a_clk, 8); |
| DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(qcs404, ln_bb_clk_pin, ln_bb_clk_a_pin, 8); |
| |
| static struct clk_smd_rpm *qcs404_clks[] = { |
| [RPM_SMD_QDSS_CLK] = &qcs404_qdss_clk, |
| [RPM_SMD_QDSS_A_CLK] = &qcs404_qdss_a_clk, |
| [RPM_SMD_PNOC_CLK] = &qcs404_pnoc_clk, |
| [RPM_SMD_PNOC_A_CLK] = &qcs404_pnoc_a_clk, |
| [RPM_SMD_SNOC_CLK] = &qcs404_snoc_clk, |
| [RPM_SMD_SNOC_A_CLK] = &qcs404_snoc_a_clk, |
| [RPM_SMD_BIMC_CLK] = &qcs404_bimc_clk, |
| [RPM_SMD_BIMC_A_CLK] = &qcs404_bimc_a_clk, |
| [RPM_SMD_BIMC_GPU_CLK] = &qcs404_bimc_gpu_clk, |
| [RPM_SMD_BIMC_GPU_A_CLK] = &qcs404_bimc_gpu_a_clk, |
| [RPM_SMD_QPIC_CLK] = &qcs404_qpic_clk, |
| [RPM_SMD_QPIC_CLK_A] = &qcs404_qpic_a_clk, |
| [RPM_SMD_CE1_CLK] = &qcs404_ce1_clk, |
| [RPM_SMD_CE1_A_CLK] = &qcs404_ce1_a_clk, |
| [RPM_SMD_RF_CLK1] = &qcs404_rf_clk1, |
| [RPM_SMD_RF_CLK1_A] = &qcs404_rf_clk1_a, |
| [RPM_SMD_LN_BB_CLK] = &qcs404_ln_bb_clk, |
| [RPM_SMD_LN_BB_A_CLK] = &qcs404_ln_bb_a_clk, |
| }; |
| |
| static const struct rpm_smd_clk_desc rpm_clk_qcs404 = { |
| .clks = qcs404_clks, |
| .num_clks = ARRAY_SIZE(qcs404_clks), |
| }; |
| |
| static const struct of_device_id rpm_smd_clk_match_table[] = { |
| { .compatible = "qcom,rpmcc-msm8916", .data = &rpm_clk_msm8916 }, |
| { .compatible = "qcom,rpmcc-msm8974", .data = &rpm_clk_msm8974 }, |
| { .compatible = "qcom,rpmcc-msm8996", .data = &rpm_clk_msm8996 }, |
| { .compatible = "qcom,rpmcc-qcs404", .data = &rpm_clk_qcs404 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, rpm_smd_clk_match_table); |
| |
| static struct clk_hw *qcom_smdrpm_clk_hw_get(struct of_phandle_args *clkspec, |
| void *data) |
| { |
| struct rpm_cc *rcc = data; |
| unsigned int idx = clkspec->args[0]; |
| |
| if (idx >= rcc->num_clks) { |
| pr_err("%s: invalid index %u\n", __func__, idx); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| return rcc->clks[idx] ? &rcc->clks[idx]->hw : ERR_PTR(-ENOENT); |
| } |
| |
| static int rpm_smd_clk_probe(struct platform_device *pdev) |
| { |
| struct rpm_cc *rcc; |
| int ret; |
| size_t num_clks, i; |
| struct qcom_smd_rpm *rpm; |
| struct clk_smd_rpm **rpm_smd_clks; |
| const struct rpm_smd_clk_desc *desc; |
| |
| rpm = dev_get_drvdata(pdev->dev.parent); |
| if (!rpm) { |
| dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); |
| return -ENODEV; |
| } |
| |
| desc = of_device_get_match_data(&pdev->dev); |
| if (!desc) |
| return -EINVAL; |
| |
| rpm_smd_clks = desc->clks; |
| num_clks = desc->num_clks; |
| |
| rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc), GFP_KERNEL); |
| if (!rcc) |
| return -ENOMEM; |
| |
| rcc->clks = rpm_smd_clks; |
| rcc->num_clks = num_clks; |
| |
| for (i = 0; i < num_clks; i++) { |
| if (!rpm_smd_clks[i]) |
| continue; |
| |
| rpm_smd_clks[i]->rpm = rpm; |
| |
| ret = clk_smd_rpm_handoff(rpm_smd_clks[i]); |
| if (ret) |
| goto err; |
| } |
| |
| ret = clk_smd_rpm_enable_scaling(rpm); |
| if (ret) |
| goto err; |
| |
| for (i = 0; i < num_clks; i++) { |
| if (!rpm_smd_clks[i]) |
| continue; |
| |
| ret = devm_clk_hw_register(&pdev->dev, &rpm_smd_clks[i]->hw); |
| if (ret) |
| goto err; |
| } |
| |
| ret = devm_of_clk_add_hw_provider(&pdev->dev, qcom_smdrpm_clk_hw_get, |
| rcc); |
| if (ret) |
| goto err; |
| |
| return 0; |
| err: |
| dev_err(&pdev->dev, "Error registering SMD clock driver (%d)\n", ret); |
| return ret; |
| } |
| |
| static struct platform_driver rpm_smd_clk_driver = { |
| .driver = { |
| .name = "qcom-clk-smd-rpm", |
| .of_match_table = rpm_smd_clk_match_table, |
| }, |
| .probe = rpm_smd_clk_probe, |
| }; |
| |
| static int __init rpm_smd_clk_init(void) |
| { |
| return platform_driver_register(&rpm_smd_clk_driver); |
| } |
| core_initcall(rpm_smd_clk_init); |
| |
| static void __exit rpm_smd_clk_exit(void) |
| { |
| platform_driver_unregister(&rpm_smd_clk_driver); |
| } |
| module_exit(rpm_smd_clk_exit); |
| |
| MODULE_DESCRIPTION("Qualcomm RPM over SMD Clock Controller Driver"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:qcom-clk-smd-rpm"); |