[PATCH v2 5/5] clk: qcom: add video clock controller driver for SM8250

Jonathan Marek
2020-09-04T03:11:18Z

Add support for the video clock controller found on SM8250 based devices.

Derived from the downstream driver.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
---
drivers/clk/qcom/Kconfig | 9 +
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/videocc-sm8250.c | 518 ++++++++++++++++++++++++++++++
3 files changed, 528 insertions(+)
create mode 100644 drivers/clk/qcom/videocc-sm8250.c

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 40d7ee9886c9..95efa38211d5 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -453,6 +453,15 @@ config SM_VIDEOCC_8150
Say Y if you want to support video devices and functionality such as
video encode and decode.

+config SM_VIDEOCC_8250
+ tristate "SM8250 Video Clock Controller"
+ select SDM_GCC_8250
+ select QCOM_GDSC
+ help
+ Support for the video clock controller on SM8250 devices.
+ Say Y if you want to support video devices and functionality such as
+ video encode and decode.
+
config SPMI_PMIC_CLKDIV
tristate "SPMI PMIC clkdiv Support"
depends on SPMI || COMPILE_TEST
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index 6f4c580d2728..55fb20800b66 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_SM_GCC_8250) += gcc-sm8250.o
obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o
obj-$(CONFIG_SM_GPUCC_8250) += gpucc-sm8250.o
obj-$(CONFIG_SM_VIDEOCC_8150) += videocc-sm8150.o
+obj-$(CONFIG_SM_VIDEOCC_8250) += videocc-sm8250.o
obj-$(CONFIG_SPMI_PMIC_CLKDIV) += clk-spmi-pmic-div.o
obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o
obj-$(CONFIG_QCOM_HFPLL) += hfpll.o
diff --git a/drivers/clk/qcom/videocc-sm8250.c b/drivers/clk/qcom/videocc-sm8250.c
new file mode 100644
index 000000000000..a814d10945c4
--- /dev/null
+++ b/drivers/clk/qcom/videocc-sm8250.c
@@ -0,0 +1,518 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,videocc-sm8250.h>
+
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "clk-regmap-divider.h"
+#include "common.h"
+#include "reset.h"
+#include "gdsc.h"
+
+enum {
+ P_BI_TCXO,
+ P_CHIP_SLEEP_CLK,
+ P_CORE_BI_PLL_TEST_SE,
+ P_VIDEO_PLL0_OUT_MAIN,
+ P_VIDEO_PLL1_OUT_MAIN,
+};
+
+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[] = {
+ { .fw_name = "bi_tcxo_ao" },
+};
+
+static struct pll_vco lucid_vco[] = {
+ { 249600000, 2000000000, 0 },
+};
+
+static const struct alpha_pll_config video_pll0_config = {
+ .l = 0x25,
+ .alpha = 0x8000,
+ .config_ctl_val = 0x20485699,
+ .config_ctl_hi_val = 0x00002261,
+ .config_ctl_hi1_val = 0x329A699C,
+ .user_ctl_val = 0x00000000,
+ .user_ctl_hi_val = 0x00000805,
+ .user_ctl_hi1_val = 0x00000000,
+};
+
+static struct clk_alpha_pll video_pll0 = {
+ .offset = 0x42c,
+ .vco_table = lucid_vco,
+ .num_vco = ARRAY_SIZE(lucid_vco),
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
+ .clkr = {
+ .hw.init = &(struct clk_init_data){
+ .name = "video_pll0",
+ .parent_data = &(const struct clk_parent_data){
+ .fw_name = "bi_tcxo",
+ },
+ .num_parents = 1,
+ .ops = &clk_alpha_pll_lucid_ops,
+ },
+ },
+};
+
+static const struct alpha_pll_config video_pll1_config = {
+ .l = 0x2B,
+ .alpha = 0xC000,
+ .config_ctl_val = 0x20485699,
+ .config_ctl_hi_val = 0x00002261,
+ .config_ctl_hi1_val = 0x329A699C,
+ .user_ctl_val = 0x00000000,
+ .user_ctl_hi_val = 0x00000805,
+ .user_ctl_hi1_val = 0x00000000,
+};
+
+static struct clk_alpha_pll video_pll1 = {
+ .offset = 0x7d0,
+ .vco_table = lucid_vco,
+ .num_vco = ARRAY_SIZE(lucid_vco),
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
+ .clkr = {
+ .hw.init = &(struct clk_init_data){
+ .name = "video_pll1",
+ .parent_data = &(const struct clk_parent_data){
+ .fw_name = "bi_tcxo",
+ },
+ .num_parents = 1,
+ .ops = &clk_alpha_pll_lucid_ops,
+ },
+ },
+};
+
+static const struct parent_map video_cc_parent_map_1[] = {
+ { P_BI_TCXO, 0 },
+ { P_VIDEO_PLL0_OUT_MAIN, 1 },
+};
+
+static const struct clk_parent_data video_cc_parent_data_1[] = {
+ { .fw_name = "bi_tcxo" },
+ { .hw = &video_pll0.clkr.hw },
+};
+
+static const struct parent_map video_cc_parent_map_2[] = {
+ { P_BI_TCXO, 0 },
+ { P_VIDEO_PLL1_OUT_MAIN, 1 },
+};
+
+static const struct clk_parent_data video_cc_parent_data_2[] = {
+ { .fw_name = "bi_tcxo" },
+ { .hw = &video_pll1.clkr.hw },
+};
+
+static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = {
+ F(19200000, P_BI_TCXO, 1, 0, 0),
+ F(720000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
+ F(1014000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
+ F(1098000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
+ F(1332000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 video_cc_mvs0_clk_src = {
+ .cmd_rcgr = 0xb94,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = video_cc_parent_map_1,
+ .freq_tbl = ftbl_video_cc_mvs0_clk_src,
+ .clkr.hw.init = &(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_mvs1_clk_src[] = {
+ F(19200000, P_BI_TCXO, 1, 0, 0),
+ F(840000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
+ F(1098000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
+ F(1332000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 video_cc_mvs1_clk_src = {
+ .cmd_rcgr = 0xbb4,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = video_cc_parent_map_2,
+ .freq_tbl = ftbl_video_cc_mvs1_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "video_cc_mvs1_clk_src",
+ .parent_data = video_cc_parent_data_2,
+ .num_parents = ARRAY_SIZE(video_cc_parent_data_2),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_regmap_div video_cc_mvs0_div_clk_src = {
+ .reg = 0xd54,
+ .shift = 0,
+ .width = 2,
+ .clkr.hw.init = &(struct clk_init_data) {
+ .name = "video_cc_mvs0_div_clk_src",
+ .parent_data = &(const struct clk_parent_data){
+ .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 = 0xc54,
+ .shift = 0,
+ .width = 2,
+ .clkr.hw.init = &(struct clk_init_data) {
+ .name = "video_cc_mvs0c_div2_div_clk_src",
+ .parent_data = &(const struct clk_parent_data){
+ .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_mvs1_div_clk_src = {
+ .reg = 0xdd4,
+ .shift = 0,
+ .width = 2,
+ .clkr.hw.init = &(struct clk_init_data) {
+ .name = "video_cc_mvs1_div_clk_src",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_mvs1_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_mvs1c_div2_div_clk_src = {
+ .reg = 0xcf4,
+ .shift = 0,
+ .width = 2,
+ .clkr.hw.init = &(struct clk_init_data) {
+ .name = "video_cc_mvs1c_div2_div_clk_src",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_mvs1_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_regmap_div_ro_ops,
+ },
+};
+
+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 = 0xbd4,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = video_cc_parent_map_0,
+ .freq_tbl = ftbl_video_cc_ahb_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "video_cc_ahb_clk_src",
+ .parent_data = video_cc_parent_data_0,
+ .num_parents = ARRAY_SIZE(video_cc_parent_data_0),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_rcg2 video_cc_xo_clk_src = {
+ .cmd_rcgr = 0xecc,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = video_cc_parent_map_0,
+ .freq_tbl = ftbl_video_cc_ahb_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "video_cc_xo_clk_src",
+ .parent_data = video_cc_parent_data_0,
+ .num_parents = ARRAY_SIZE(video_cc_parent_data_0),
+ .flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT,
+ .ops = &clk_rcg2_ops,
+ },
+};
+
+static struct clk_branch video_cc_ahb_clk = {
+ .halt_reg = 0xe58,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0xe58,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_ahb_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_ahb_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch video_cc_mvs0_clk = {
+ .halt_reg = 0xd34,
+ .halt_check = BRANCH_HALT_SKIP, /* TODO: hw gated ? */
+ .clkr = {
+ .enable_reg = 0xd34,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_mvs0_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_mvs0_div_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 = 0xc34,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0xc34,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_mvs0c_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .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_mvs1_clk = {
+ .halt_reg = 0xdb4,
+ .halt_check = BRANCH_HALT_VOTED,
+ .clkr = {
+ .enable_reg = 0xdb4,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_mvs1_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_mvs1_div_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch video_cc_mvs1_div2_clk = {
+ .halt_reg = 0xdf4,
+ .halt_check = BRANCH_HALT_VOTED,
+ .clkr = {
+ .enable_reg = 0xdf4,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_mvs1_div2_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_mvs1c_div2_div_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch video_cc_mvs1c_clk = {
+ .halt_reg = 0xcd4,
+ .halt_check = BRANCH_HALT_VOTED,
+ .clkr = {
+ .enable_reg = 0xcd4,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_mvs1c_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_mvs1c_div2_div_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch video_cc_xo_clk = {
+ .halt_reg = 0xeec,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0xeec,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "video_cc_xo_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &video_cc_xo_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct gdsc mvs0c_gdsc = {
+ .gdscr = 0xbf8,
+ .pd = {
+ .name = "mvs0c_gdsc",
+ },
+ .flags = 0,
+ .pwrsts = PWRSTS_OFF_ON,
+};
+
+static struct gdsc mvs1c_gdsc = {
+ .gdscr = 0xc98,
+ .pd = {
+ .name = "mvs1c_gdsc",
+ },
+ .flags = 0,
+ .pwrsts = PWRSTS_OFF_ON,
+};
+
+static struct gdsc mvs0_gdsc = {
+ .gdscr = 0xd18,
+ .pd = {
+ .name = "mvs0_gdsc",
+ },
+ .flags = HW_CTRL,
+ .pwrsts = PWRSTS_OFF_ON,
+};
+
+static struct gdsc mvs1_gdsc = {
+ .gdscr = 0xd98,
+ .pd = {
+ .name = "mvs1_gdsc",
+ },
+ .flags = HW_CTRL,
+ .pwrsts = PWRSTS_OFF_ON,
+};
+
+static struct clk_regmap *video_cc_sm8250_clocks[] = {
+ [VIDEO_CC_AHB_CLK] = &video_cc_ahb_clk.clkr,
+ [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_MVS0C_CLK] = &video_cc_mvs0c_clk.clkr,
+ [VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC] = &video_cc_mvs0c_div2_div_clk_src.clkr,
+ [VIDEO_CC_MVS1_CLK] = &video_cc_mvs1_clk.clkr,
+ [VIDEO_CC_MVS1_CLK_SRC] = &video_cc_mvs1_clk_src.clkr,
+ [VIDEO_CC_MVS1_DIV2_CLK] = &video_cc_mvs1_div2_clk.clkr,
+ [VIDEO_CC_MVS1_DIV_CLK_SRC] = &video_cc_mvs1_div_clk_src.clkr,
+ [VIDEO_CC_MVS1C_CLK] = &video_cc_mvs1c_clk.clkr,
+ [VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC] = &video_cc_mvs1c_div2_div_clk_src.clkr,
+ [VIDEO_CC_XO_CLK] = &video_cc_xo_clk.clkr,
+ [VIDEO_CC_XO_CLK_SRC] = &video_cc_xo_clk_src.clkr,
+ [VIDEO_CC_PLL0] = &video_pll0.clkr,
+ [VIDEO_CC_PLL1] = &video_pll1.clkr,
+};
+
+static const struct qcom_reset_map video_cc_sm8250_resets[] = {
+ [VIDEO_CC_CVP_INTERFACE_BCR] = { 0xe54 },
+ [VIDEO_CC_CVP_MVS0_BCR] = { 0xd14 },
+ [VIDEO_CC_MVS0C_CLK_ARES] = { 0xc34, 2 },
+ [VIDEO_CC_CVP_MVS0C_BCR] = { 0xbf4 },
+ [VIDEO_CC_CVP_MVS1_BCR] = { 0xd94 },
+ [VIDEO_CC_MVS1C_CLK_ARES] = { 0xcd4, 2 },
+ [VIDEO_CC_CVP_MVS1C_BCR] = { 0xc94 },
+};
+
+static struct gdsc *video_cc_sm8250_gdscs[] = {
+ [MVS0C_GDSC] = &mvs0c_gdsc,
+ [MVS1C_GDSC] = &mvs1c_gdsc,
+ [MVS0_GDSC] = &mvs0_gdsc,
+ [MVS1_GDSC] = &mvs1_gdsc,
+};
+
+static const struct regmap_config video_cc_sm8250_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0xf4c,
+ .fast_io = true,
+};
+
+static const struct qcom_cc_desc video_cc_sm8250_desc = {
+ .config = &video_cc_sm8250_regmap_config,
+ .clks = video_cc_sm8250_clocks,
+ .num_clks = ARRAY_SIZE(video_cc_sm8250_clocks),
+ .resets = video_cc_sm8250_resets,
+ .num_resets = ARRAY_SIZE(video_cc_sm8250_resets),
+ .gdscs = video_cc_sm8250_gdscs,
+ .num_gdscs = ARRAY_SIZE(video_cc_sm8250_gdscs),
+};
+
+static const struct of_device_id video_cc_sm8250_match_table[] = {
+ { .compatible = "qcom,sm8250-videocc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, video_cc_sm8250_match_table);
+
+static int video_cc_sm8250_probe(struct platform_device *pdev)
+{
+ struct regmap *regmap;
+
+ regmap = qcom_cc_map(pdev, &video_cc_sm8250_desc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config);
+ clk_lucid_pll_configure(&video_pll1, regmap, &video_pll1_config);
+
+ return qcom_cc_really_probe(pdev, &video_cc_sm8250_desc, regmap);
+}
+
+static struct platform_driver video_cc_sm8250_driver = {
+ .probe = video_cc_sm8250_probe,
+ .driver = {
+ .name = "sm8250-videocc",
+ .of_match_table = video_cc_sm8250_match_table,
+ },
+};
+
+static int __init video_cc_sm8250_init(void)
+{
+ return platform_driver_register(&video_cc_sm8250_driver);
+}
+subsys_initcall(video_cc_sm8250_init);
+
+static void __exit video_cc_sm8250_exit(void)
+{
+ platform_driver_unregister(&video_cc_sm8250_driver);
+}
+module_exit(video_cc_sm8250_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("QTI VIDEOCC SM8250 Driver");
--
2.26.1