]> git.ipfire.org Git - thirdparty/kernel/linux.git/commitdiff
clk: qcom: videocc-sm8750: Add video clock controller driver for SM8750
authorTaniya Das <taniya.das@oss.qualcomm.com>
Tue, 18 Nov 2025 07:17:09 +0000 (12:47 +0530)
committerBjorn Andersson <andersson@kernel.org>
Tue, 18 Nov 2025 22:11:36 +0000 (16:11 -0600)
Add support for the video clock controller for video clients to be able
to request for videocc clocks on SM8750 platform.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251118-sm8750-videocc-v2-v4-5-049882a70c9f@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
drivers/clk/qcom/Kconfig
drivers/clk/qcom/Makefile
drivers/clk/qcom/videocc-sm8750.c [new file with mode: 0644]

index 550a9d82a6b38622eb3871f61cec7878d8d9cdfe..a284ba040b78ba2f7b7c7ead14023c0ec637f841 100644 (file)
@@ -1531,6 +1531,17 @@ config SM_VIDEOCC_8550
          Say Y if you want to support video devices and functionality such as
          video encode/decode.
 
+config SM_VIDEOCC_8750
+       tristate "SM8750 Video Clock Controller"
+       depends on ARM64 || COMPILE_TEST
+       select SM_GCC_8750
+       select QCOM_GDSC
+       help
+         Support for the video clock controller on Qualcomm Technologies, Inc.
+         SM8750 devices.
+         Say Y if you want to support video devices and functionality such as
+         video encode/decode.
+
 config SPMI_PMIC_CLKDIV
        tristate "SPMI PMIC clkdiv Support"
        depends on SPMI || COMPILE_TEST
index 5a0fd1d843c87a6f0a805706fcfad91c3f705340..0ac8a9055a43230d848c6a0c1ac118c03c3e18d2 100644 (file)
@@ -185,6 +185,7 @@ obj-$(CONFIG_SM_VIDEOCC_8250) += videocc-sm8250.o
 obj-$(CONFIG_SM_VIDEOCC_8350) += videocc-sm8350.o
 obj-$(CONFIG_SM_VIDEOCC_8450) += videocc-sm8450.o
 obj-$(CONFIG_SM_VIDEOCC_8550) += videocc-sm8550.o
+obj-$(CONFIG_SM_VIDEOCC_8750) += videocc-sm8750.o
 obj-$(CONFIG_SM_VIDEOCC_MILOS) += videocc-milos.o
 obj-$(CONFIG_SPMI_PMIC_CLKDIV) += clk-spmi-pmic-div.o
 obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o
diff --git a/drivers/clk/qcom/videocc-sm8750.c b/drivers/clk/qcom/videocc-sm8750.c
new file mode 100644 (file)
index 0000000..0acf310
--- /dev/null
@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,sm8750-videocc.h>
+
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-pll.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "clk-regmap-divider.h"
+#include "clk-regmap-mux.h"
+#include "common.h"
+#include "gdsc.h"
+#include "reset.h"
+
+enum {
+       DT_BI_TCXO,
+       DT_BI_TCXO_AO,
+       DT_SLEEP_CLK,
+};
+
+enum {
+       P_BI_TCXO,
+       P_SLEEP_CLK,
+       P_VIDEO_CC_PLL0_OUT_MAIN,
+};
+
+static const struct pll_vco taycan_elu_vco[] = {
+       { 249600000, 2500000000, 0 },
+};
+
+static const struct alpha_pll_config video_cc_pll0_config = {
+       .l = 0x25,
+       .alpha = 0x8000,
+       .config_ctl_val = 0x19660387,
+       .config_ctl_hi_val = 0x098060a0,
+       .config_ctl_hi1_val = 0xb416cb20,
+       .user_ctl_val = 0x00000000,
+       .user_ctl_hi_val = 0x00000002,
+};
+
+static struct clk_alpha_pll video_cc_pll0 = {
+       .offset = 0x0,
+       .config = &video_cc_pll0_config,
+       .vco_table = taycan_elu_vco,
+       .num_vco = ARRAY_SIZE(taycan_elu_vco),
+       .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TAYCAN_ELU],
+       .clkr = {
+               .hw.init = &(const struct clk_init_data) {
+                       .name = "video_cc_pll0",
+                       .parent_data = &(const struct clk_parent_data) {
+                               .index = DT_BI_TCXO,
+                       },
+                       .num_parents = 1,
+                       .ops = &clk_alpha_pll_taycan_elu_ops,
+               },
+       },
+};
+
+static const struct parent_map video_cc_parent_map_0[] = {
+       { P_BI_TCXO, 0 },
+};
+
+static const struct clk_parent_data video_cc_parent_data_0_ao[] = {
+       { .index = DT_BI_TCXO_AO },
+};
+
+static const struct parent_map video_cc_parent_map_1[] = {
+       { P_BI_TCXO, 0 },
+       { P_VIDEO_CC_PLL0_OUT_MAIN, 1 },
+};
+
+static const struct clk_parent_data video_cc_parent_data_1[] = {
+       { .index = DT_BI_TCXO },
+       { .hw = &video_cc_pll0.clkr.hw },
+};
+
+static const struct parent_map video_cc_parent_map_2[] = {
+       { P_SLEEP_CLK, 0 },
+};
+
+static const struct clk_parent_data video_cc_parent_data_2_ao[] = {
+       { .index = DT_SLEEP_CLK },
+};
+
+static const struct freq_tbl ftbl_video_cc_ahb_clk_src[] = {
+       F(19200000, P_BI_TCXO, 1, 0, 0),
+       { }
+};
+
+static struct clk_rcg2 video_cc_ahb_clk_src = {
+       .cmd_rcgr = 0x8018,
+       .mnd_width = 0,
+       .hid_width = 5,
+       .parent_map = video_cc_parent_map_0,
+       .freq_tbl = ftbl_video_cc_ahb_clk_src,
+       .clkr.hw.init = &(const struct clk_init_data) {
+               .name = "video_cc_ahb_clk_src",
+               .parent_data = video_cc_parent_data_0_ao,
+               .num_parents = ARRAY_SIZE(video_cc_parent_data_0_ao),
+               .flags = CLK_SET_RATE_PARENT,
+               .ops = &clk_rcg2_ops,
+       },
+};
+
+static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = {
+       F(720000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       F(1014000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       F(1260000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       F(1332000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       F(1600000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       F(1710000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       F(1890000000, P_VIDEO_CC_PLL0_OUT_MAIN, 1, 0, 0),
+       { }
+};
+
+static struct clk_rcg2 video_cc_mvs0_clk_src = {
+       .cmd_rcgr = 0x8000,
+       .mnd_width = 0,
+       .hid_width = 5,
+       .parent_map = video_cc_parent_map_1,
+       .freq_tbl = ftbl_video_cc_mvs0_clk_src,
+       .clkr.hw.init = &(const struct clk_init_data) {
+               .name = "video_cc_mvs0_clk_src",
+               .parent_data = video_cc_parent_data_1,
+               .num_parents = ARRAY_SIZE(video_cc_parent_data_1),
+               .flags = CLK_SET_RATE_PARENT,
+               .ops = &clk_rcg2_shared_ops,
+       },
+};
+
+static const struct freq_tbl ftbl_video_cc_sleep_clk_src[] = {
+       F(32000, P_SLEEP_CLK, 1, 0, 0),
+       { }
+};
+
+static struct clk_rcg2 video_cc_sleep_clk_src = {
+       .cmd_rcgr = 0x80e0,
+       .mnd_width = 0,
+       .hid_width = 5,
+       .parent_map = video_cc_parent_map_2,
+       .freq_tbl = ftbl_video_cc_sleep_clk_src,
+       .clkr.hw.init = &(const struct clk_init_data) {
+               .name = "video_cc_sleep_clk_src",
+               .parent_data = video_cc_parent_data_2_ao,
+               .num_parents = ARRAY_SIZE(video_cc_parent_data_2_ao),
+               .flags = CLK_SET_RATE_PARENT,
+               .ops = &clk_rcg2_ops,
+       },
+};
+
+static struct clk_rcg2 video_cc_xo_clk_src = {
+       .cmd_rcgr = 0x80bc,
+       .mnd_width = 0,
+       .hid_width = 5,
+       .parent_map = video_cc_parent_map_0,
+       .freq_tbl = ftbl_video_cc_ahb_clk_src,
+       .clkr.hw.init = &(const struct clk_init_data) {
+               .name = "video_cc_xo_clk_src",
+               .parent_data = video_cc_parent_data_0_ao,
+               .num_parents = ARRAY_SIZE(video_cc_parent_data_0_ao),
+               .flags = CLK_SET_RATE_PARENT,
+               .ops = &clk_rcg2_ops,
+       },
+};
+
+static struct clk_regmap_div video_cc_mvs0_div_clk_src = {
+       .reg = 0x809c,
+       .shift = 0,
+       .width = 4,
+       .clkr.hw.init = &(const struct clk_init_data) {
+               .name = "video_cc_mvs0_div_clk_src",
+               .parent_hws = (const struct clk_hw*[]) {
+                       &video_cc_mvs0_clk_src.clkr.hw,
+               },
+               .num_parents = 1,
+               .flags = CLK_SET_RATE_PARENT,
+               .ops = &clk_regmap_div_ro_ops,
+       },
+};
+
+static struct clk_regmap_div video_cc_mvs0c_div2_div_clk_src = {
+       .reg = 0x8060,
+       .shift = 0,
+       .width = 4,
+       .clkr.hw.init = &(const struct clk_init_data) {
+               .name = "video_cc_mvs0c_div2_div_clk_src",
+               .parent_hws = (const struct clk_hw*[]) {
+                       &video_cc_mvs0_clk_src.clkr.hw,
+               },
+               .num_parents = 1,
+               .flags = CLK_SET_RATE_PARENT,
+               .ops = &clk_regmap_div_ro_ops,
+       },
+};
+
+static struct clk_branch video_cc_mvs0_clk = {
+       .halt_reg = 0x807c,
+       .halt_check = BRANCH_HALT_VOTED,
+       .hwcg_reg = 0x807c,
+       .hwcg_bit = 1,
+       .clkr = {
+               .enable_reg = 0x807c,
+               .enable_mask = BIT(0),
+               .hw.init = &(const struct clk_init_data) {
+                       .name = "video_cc_mvs0_clk",
+                       .parent_hws = (const struct clk_hw*[]) {
+                               &video_cc_mvs0_div_clk_src.clkr.hw,
+                       },
+                       .num_parents = 1,
+                       .flags = CLK_SET_RATE_PARENT,
+                       .ops = &clk_branch2_ops,
+               },
+       },
+};
+
+static struct clk_mem_branch video_cc_mvs0_freerun_clk = {
+       .mem_enable_reg = 0x8090,
+       .mem_ack_reg =  0x8090,
+       .mem_enable_mask = BIT(3),
+       .mem_enable_ack_mask = GENMASK(11, 10),
+       .mem_enable_invert = true,
+       .branch = {
+               .halt_reg = 0x808c,
+               .halt_check = BRANCH_HALT,
+               .clkr = {
+                       .enable_reg = 0x808c,
+                       .enable_mask = BIT(0),
+                       .hw.init = &(const struct clk_init_data) {
+                               .name = "video_cc_mvs0_freerun_clk",
+                               .parent_hws = (const struct clk_hw*[]) {
+                                       &video_cc_mvs0_div_clk_src.clkr.hw,
+                               },
+                               .num_parents = 1,
+                               .flags = CLK_SET_RATE_PARENT,
+                               .ops = &clk_branch2_mem_ops,
+                       },
+               },
+       },
+};
+
+static struct clk_branch video_cc_mvs0_shift_clk = {
+       .halt_reg = 0x80d8,
+       .halt_check = BRANCH_HALT_VOTED,
+       .hwcg_reg = 0x80d8,
+       .hwcg_bit = 1,
+       .clkr = {
+               .enable_reg = 0x80d8,
+               .enable_mask = BIT(0),
+               .hw.init = &(const struct clk_init_data) {
+                       .name = "video_cc_mvs0_shift_clk",
+                       .parent_hws = (const struct clk_hw*[]) {
+                               &video_cc_xo_clk_src.clkr.hw,
+                       },
+                       .num_parents = 1,
+                       .flags = CLK_SET_RATE_PARENT,
+                       .ops = &clk_branch2_ops,
+               },
+       },
+};
+
+static struct clk_branch video_cc_mvs0c_clk = {
+       .halt_reg = 0x804c,
+       .halt_check = BRANCH_HALT,
+       .clkr = {
+               .enable_reg = 0x804c,
+               .enable_mask = BIT(0),
+               .hw.init = &(const struct clk_init_data) {
+                       .name = "video_cc_mvs0c_clk",
+                       .parent_hws = (const struct clk_hw*[]) {
+                               &video_cc_mvs0c_div2_div_clk_src.clkr.hw,
+                       },
+                       .num_parents = 1,
+                       .flags = CLK_SET_RATE_PARENT,
+                       .ops = &clk_branch2_ops,
+               },
+       },
+};
+
+static struct clk_branch video_cc_mvs0c_freerun_clk = {
+       .halt_reg = 0x805c,
+       .halt_check = BRANCH_HALT,
+       .clkr = {
+               .enable_reg = 0x805c,
+               .enable_mask = BIT(0),
+               .hw.init = &(const struct clk_init_data) {
+                       .name = "video_cc_mvs0c_freerun_clk",
+                       .parent_hws = (const struct clk_hw*[]) {
+                               &video_cc_mvs0c_div2_div_clk_src.clkr.hw,
+                       },
+                       .num_parents = 1,
+                       .flags = CLK_SET_RATE_PARENT,
+                       .ops = &clk_branch2_ops,
+               },
+       },
+};
+
+static struct clk_branch video_cc_mvs0c_shift_clk = {
+       .halt_reg = 0x80dc,
+       .halt_check = BRANCH_HALT_VOTED,
+       .hwcg_reg = 0x80dc,
+       .hwcg_bit = 1,
+       .clkr = {
+               .enable_reg = 0x80dc,
+               .enable_mask = BIT(0),
+               .hw.init = &(const struct clk_init_data) {
+                       .name = "video_cc_mvs0c_shift_clk",
+                       .parent_hws = (const struct clk_hw*[]) {
+                               &video_cc_xo_clk_src.clkr.hw,
+                       },
+                       .num_parents = 1,
+                       .flags = CLK_SET_RATE_PARENT,
+                       .ops = &clk_branch2_ops,
+               },
+       },
+};
+
+static struct gdsc video_cc_mvs0c_gdsc = {
+       .gdscr = 0x8034,
+       .en_rest_wait_val = 0x2,
+       .en_few_wait_val = 0x2,
+       .clk_dis_wait_val = 0x6,
+       .pd = {
+               .name = "video_cc_mvs0c_gdsc",
+       },
+       .pwrsts = PWRSTS_OFF_ON,
+       .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE,
+};
+
+static struct gdsc video_cc_mvs0_gdsc = {
+       .gdscr = 0x8068,
+       .en_rest_wait_val = 0x2,
+       .en_few_wait_val = 0x2,
+       .clk_dis_wait_val = 0x6,
+       .pd = {
+               .name = "video_cc_mvs0_gdsc",
+       },
+       .pwrsts = PWRSTS_OFF_ON,
+       .parent = &video_cc_mvs0c_gdsc.pd,
+       .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | HW_CTRL_TRIGGER,
+};
+
+static struct clk_regmap *video_cc_sm8750_clocks[] = {
+       [VIDEO_CC_AHB_CLK_SRC] = &video_cc_ahb_clk_src.clkr,
+       [VIDEO_CC_MVS0_CLK] = &video_cc_mvs0_clk.clkr,
+       [VIDEO_CC_MVS0_CLK_SRC] = &video_cc_mvs0_clk_src.clkr,
+       [VIDEO_CC_MVS0_DIV_CLK_SRC] = &video_cc_mvs0_div_clk_src.clkr,
+       [VIDEO_CC_MVS0_FREERUN_CLK] = &video_cc_mvs0_freerun_clk.branch.clkr,
+       [VIDEO_CC_MVS0_SHIFT_CLK] = &video_cc_mvs0_shift_clk.clkr,
+       [VIDEO_CC_MVS0C_CLK] = &video_cc_mvs0c_clk.clkr,
+       [VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC] = &video_cc_mvs0c_div2_div_clk_src.clkr,
+       [VIDEO_CC_MVS0C_FREERUN_CLK] = &video_cc_mvs0c_freerun_clk.clkr,
+       [VIDEO_CC_MVS0C_SHIFT_CLK] = &video_cc_mvs0c_shift_clk.clkr,
+       [VIDEO_CC_PLL0] = &video_cc_pll0.clkr,
+       [VIDEO_CC_SLEEP_CLK_SRC] = &video_cc_sleep_clk_src.clkr,
+       [VIDEO_CC_XO_CLK_SRC] = &video_cc_xo_clk_src.clkr,
+};
+
+static struct gdsc *video_cc_sm8750_gdscs[] = {
+       [VIDEO_CC_MVS0_GDSC] = &video_cc_mvs0_gdsc,
+       [VIDEO_CC_MVS0C_GDSC] = &video_cc_mvs0c_gdsc,
+};
+
+static const struct qcom_reset_map video_cc_sm8750_resets[] = {
+       [VIDEO_CC_INTERFACE_BCR] = { 0x80a0 },
+       [VIDEO_CC_MVS0_BCR] = { 0x8064 },
+       [VIDEO_CC_MVS0C_CLK_ARES] = { 0x804c, 2 },
+       [VIDEO_CC_MVS0C_BCR] = { 0x8030 },
+       [VIDEO_CC_MVS0_FREERUN_CLK_ARES] = { 0x808c, 2 },
+       [VIDEO_CC_MVS0C_FREERUN_CLK_ARES] = { 0x805c, 2 },
+       [VIDEO_CC_XO_CLK_ARES] = { 0x80d4, 2 },
+};
+
+static const struct regmap_config video_cc_sm8750_regmap_config = {
+       .reg_bits = 32,
+       .reg_stride = 4,
+       .val_bits = 32,
+       .max_register = 0x9f4c,
+       .fast_io = true,
+};
+
+static struct clk_alpha_pll *video_cc_sm8750_plls[] = {
+       &video_cc_pll0,
+};
+
+static u32 video_cc_sm8750_critical_cbcrs[] = {
+       0x80a4, /* VIDEO_CC_AHB_CLK */
+       0x80f8, /* VIDEO_CC_SLEEP_CLK */
+       0x80d4, /* VIDEO_CC_XO_CLK */
+};
+
+static void clk_sm8750_regs_configure(struct device *dev, struct regmap *regmap)
+{
+       /* Update DLY_ACCU_RED_SHIFTER_DONE to 0xF for mvs0, mvs0c */
+       regmap_update_bits(regmap, 0x8074, GENMASK(25, 21), GENMASK(25, 21));
+       regmap_update_bits(regmap, 0x8040, GENMASK(25, 21), GENMASK(25, 21));
+
+       regmap_update_bits(regmap, 0x9f24, BIT(0), BIT(0));
+}
+
+static struct qcom_cc_driver_data video_cc_sm8750_driver_data = {
+       .alpha_plls = video_cc_sm8750_plls,
+       .num_alpha_plls = ARRAY_SIZE(video_cc_sm8750_plls),
+       .clk_cbcrs = video_cc_sm8750_critical_cbcrs,
+       .num_clk_cbcrs = ARRAY_SIZE(video_cc_sm8750_critical_cbcrs),
+       .clk_regs_configure = clk_sm8750_regs_configure,
+};
+
+static struct qcom_cc_desc video_cc_sm8750_desc = {
+       .config = &video_cc_sm8750_regmap_config,
+       .clks = video_cc_sm8750_clocks,
+       .num_clks = ARRAY_SIZE(video_cc_sm8750_clocks),
+       .resets = video_cc_sm8750_resets,
+       .num_resets = ARRAY_SIZE(video_cc_sm8750_resets),
+       .gdscs = video_cc_sm8750_gdscs,
+       .num_gdscs = ARRAY_SIZE(video_cc_sm8750_gdscs),
+       .use_rpm = true,
+       .driver_data = &video_cc_sm8750_driver_data,
+};
+
+static const struct of_device_id video_cc_sm8750_match_table[] = {
+       { .compatible = "qcom,sm8750-videocc" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, video_cc_sm8750_match_table);
+
+static int video_cc_sm8750_probe(struct platform_device *pdev)
+{
+       return qcom_cc_probe(pdev, &video_cc_sm8750_desc);
+}
+
+static struct platform_driver video_cc_sm8750_driver = {
+       .probe = video_cc_sm8750_probe,
+       .driver = {
+               .name = "video_cc-sm8750",
+               .of_match_table = video_cc_sm8750_match_table,
+       },
+};
+
+static int __init video_cc_sm8750_init(void)
+{
+       return platform_driver_register(&video_cc_sm8750_driver);
+}
+subsys_initcall(video_cc_sm8750_init);
+
+static void __exit video_cc_sm8750_exit(void)
+{
+       platform_driver_unregister(&video_cc_sm8750_driver);
+}
+module_exit(video_cc_sm8750_exit);
+
+MODULE_DESCRIPTION("QTI VIDEO_CC SM8750 Driver");
+MODULE_LICENSE("GPL");