[PATCH v4 05/10] clk: qcom: dispcc-qcs615: Add QCS615 display clock controller driver

Taniya Das
2025-01-19T10:23:47Z

Add support for the display clock controller for display clients to
be able to request for the clocks on QCS615 platform.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Taniya Das <quic_tdas@quicinc.com>
---
drivers/clk/qcom/Kconfig | 9 +
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/dispcc-qcs615.c | 786 +++++++++++++++++++++++++++++++++++++++
3 files changed, 796 insertions(+)

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 16bdae7dbd74912353d8f9ff694059ca05e1aac5..2448899a3825952164418bd0d7f7676ccf13994a 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -486,6 +486,15 @@ config QCM_DISPCC_2290
Say Y if you want to support display devices and functionality such as
splash screen.

+config QCS_DISPCC_615
+ tristate "QCS615 Display Clock Controller"
+ select QCM_GCC_615
+ help
+ Support for the display clock controller on Qualcomm Technologies, Inc
+ QCS615 devices.
+ Say Y if you want to support display devices and functionality such as
+ splash screen.
+
config QCS_CAMCC_615
tristate "QCS615 Camera Clock Controller"
depends on ARM64 || COMPILE_TEST
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index 1309137351a911a1b3dcb41e2f1e269a4f53d893..5ddf1655cb83a6f27c57a234c175db2e659b9683 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -72,6 +72,7 @@ obj-$(CONFIG_QCOM_CLK_RPMH) += clk-rpmh.o
obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o
obj-$(CONFIG_QCM_GCC_2290) += gcc-qcm2290.o
obj-$(CONFIG_QCM_DISPCC_2290) += dispcc-qcm2290.o
+obj-$(CONFIG_QCS_DISPCC_615) += dispcc-qcs615.o
obj-$(CONFIG_QCS_CAMCC_615) += camcc-qcs615.o
obj-$(CONFIG_QCS_GCC_404) += gcc-qcs404.o
obj-$(CONFIG_QCS_GCC_615) += gcc-qcs615.o
diff --git a/drivers/clk/qcom/dispcc-qcs615.c b/drivers/clk/qcom/dispcc-qcs615.c
new file mode 100644
index 0000000000000000000000000000000000000000..d4b4ecb769883423f416c131ba1c53945e5a1320
--- /dev/null
+++ b/drivers/clk/qcom/dispcc-qcs615.c
@@ -0,0 +1,786 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,qcs615-dispcc.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_GPLL0,
+ DT_DSI0_PHY_PLL_OUT_BYTECLK,
+ DT_DSI0_PHY_PLL_OUT_DSICLK,
+ DT_DSI1_PHY_PLL_OUT_DSICLK,
+ DT_DP_PHY_PLL_LINK_CLK,
+ DT_DP_PHY_PLL_VCO_DIV_CLK,
+};
+
+enum {
+ P_BI_TCXO,
+ P_DISP_CC_PLL0_OUT_MAIN,
+ P_DP_PHY_PLL_LINK_CLK,
+ P_DP_PHY_PLL_VCO_DIV_CLK,
+ P_DSI0_PHY_PLL_OUT_BYTECLK,
+ P_DSI0_PHY_PLL_OUT_DSICLK,
+ P_DSI1_PHY_PLL_OUT_DSICLK,
+ P_GPLL0_OUT_MAIN,
+};
+
+static const struct pll_vco disp_cc_pll_vco[] = {
+ { 500000000, 1000000000, 2 },
+};
+
+/* 576MHz configuration VCO - 2 */
+static struct alpha_pll_config disp_cc_pll0_config = {
+ .l = 0x1e,
+ .vco_val = BIT(21),
+ .vco_mask = GENMASK(21, 20),
+ .main_output_mask = BIT(0),
+ .config_ctl_val = 0x4001055b,
+ .test_ctl_hi_val = 0x1,
+ .test_ctl_hi_mask = 0x1,
+};
+
+static struct clk_alpha_pll disp_cc_pll0 = {
+ .offset = 0x0,
+ .vco_table = disp_cc_pll_vco,
+ .num_vco = ARRAY_SIZE(disp_cc_pll_vco),
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
+ .clkr = {
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_pll0",
+ .parent_data = &(const struct clk_parent_data) {
+ .index = DT_BI_TCXO,
+ },
+ .num_parents = 1,
+ .ops = &clk_alpha_pll_slew_ops,
+ },
+ },
+};
+
+static const struct parent_map disp_cc_parent_map_0[] = {
+ { P_BI_TCXO, 0 },
+ { P_DP_PHY_PLL_LINK_CLK, 1 },
+ { P_DP_PHY_PLL_VCO_DIV_CLK, 2 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_0[] = {
+ { .index = DT_BI_TCXO },
+ { .index = DT_DP_PHY_PLL_LINK_CLK },
+ { .index = DT_DP_PHY_PLL_VCO_DIV_CLK },
+};
+
+static const struct parent_map disp_cc_parent_map_1[] = {
+ { P_BI_TCXO, 0 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_1[] = {
+ { .index = DT_BI_TCXO },
+};
+
+static const struct parent_map disp_cc_parent_map_2[] = {
+ { P_BI_TCXO, 0 },
+ { P_DSI0_PHY_PLL_OUT_BYTECLK, 1 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_2[] = {
+ { .index = DT_BI_TCXO },
+ { .index = DT_DSI0_PHY_PLL_OUT_BYTECLK },
+};
+
+static const struct parent_map disp_cc_parent_map_3[] = {
+ { P_BI_TCXO, 0 },
+ { P_DISP_CC_PLL0_OUT_MAIN, 1 },
+ { P_GPLL0_OUT_MAIN, 4 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_3[] = {
+ { .index = DT_BI_TCXO },
+ { .hw = &disp_cc_pll0.clkr.hw },
+ { .index = DT_GPLL0 },
+};
+
+static const struct parent_map disp_cc_parent_map_4[] = {
+ { P_BI_TCXO, 0 },
+ { P_GPLL0_OUT_MAIN, 4 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_4[] = {
+ { .index = DT_BI_TCXO },
+ { .index = DT_GPLL0 },
+};
+
+static const struct parent_map disp_cc_parent_map_5[] = {
+ { P_BI_TCXO, 0 },
+ { P_DSI0_PHY_PLL_OUT_DSICLK, 1 },
+ { P_DSI1_PHY_PLL_OUT_DSICLK, 2 },
+};
+
+static const struct clk_parent_data disp_cc_parent_data_5[] = {
+ { .index = DT_BI_TCXO },
+ { .index = DT_DSI0_PHY_PLL_OUT_DSICLK },
+ { .index = DT_DSI1_PHY_PLL_OUT_DSICLK },
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_ahb_clk_src[] = {
+ F(19200000, P_BI_TCXO, 1, 0, 0),
+ F(37500000, P_GPLL0_OUT_MAIN, 8, 0, 0),
+ F(75000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 disp_cc_mdss_ahb_clk_src = {
+ .cmd_rcgr = 0x2170,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_4,
+ .freq_tbl = ftbl_disp_cc_mdss_ahb_clk_src,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_ahb_clk_src",
+ .parent_data = disp_cc_parent_data_4,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_4),
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_byte0_clk_src = {
+ .cmd_rcgr = 0x20c0,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_2,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_byte0_clk_src",
+ .parent_data = disp_cc_parent_data_2,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_2),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_byte2_ops,
+ },
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_dp_aux1_clk_src[] = {
+ F(19200000, P_BI_TCXO, 1, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 disp_cc_mdss_dp_aux_clk_src = {
+ .cmd_rcgr = 0x2158,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_1,
+ .freq_tbl = ftbl_disp_cc_mdss_dp_aux1_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "disp_cc_mdss_dp_aux_clk_src",
+ .parent_data = disp_cc_parent_data_1,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_1),
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_dp_crypto_clk_src = {
+ .cmd_rcgr = 0x2110,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_0,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_crypto_clk_src",
+ .parent_data = disp_cc_parent_data_0,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
+ .ops = &clk_byte2_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_dp_link_clk_src = {
+ .cmd_rcgr = 0x20f4,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_0,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_link_clk_src",
+ .parent_data = disp_cc_parent_data_0,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_byte2_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_dp_pixel1_clk_src = {
+ .cmd_rcgr = 0x2140,
+ .mnd_width = 16,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_0,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_pixel1_clk_src",
+ .parent_data = disp_cc_parent_data_0,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_dp_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_dp_pixel_clk_src = {
+ .cmd_rcgr = 0x2128,
+ .mnd_width = 16,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_0,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_pixel_clk_src",
+ .parent_data = disp_cc_parent_data_0,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_0),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_dp_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
+ .cmd_rcgr = 0x20dc,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_2,
+ .freq_tbl = ftbl_disp_cc_mdss_dp_aux1_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "disp_cc_mdss_esc0_clk_src",
+ .parent_data = disp_cc_parent_data_2,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_2),
+ .ops = &clk_rcg2_ops,
+ },
+};
+
+static const struct freq_tbl ftbl_disp_cc_mdss_mdp_clk_src[] = {
+ F(19200000, P_BI_TCXO, 1, 0, 0),
+ F(192000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+ F(256000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+ F(307000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 disp_cc_mdss_mdp_clk_src = {
+ .cmd_rcgr = 0x2078,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_3,
+ .freq_tbl = ftbl_disp_cc_mdss_mdp_clk_src,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_mdp_clk_src",
+ .parent_data = disp_cc_parent_data_3,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_pclk0_clk_src = {
+ .cmd_rcgr = 0x2060,
+ .mnd_width = 8,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_5,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_pclk0_clk_src",
+ .parent_data = disp_cc_parent_data_5,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_5),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_pixel_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_rot_clk_src = {
+ .cmd_rcgr = 0x2090,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_3,
+ .freq_tbl = ftbl_disp_cc_mdss_mdp_clk_src,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_rot_clk_src",
+ .parent_data = disp_cc_parent_data_3,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_3),
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
+ .cmd_rcgr = 0x20a8,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = disp_cc_parent_map_1,
+ .freq_tbl = ftbl_disp_cc_mdss_dp_aux1_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "disp_cc_mdss_vsync_clk_src",
+ .parent_data = disp_cc_parent_data_1,
+ .num_parents = ARRAY_SIZE(disp_cc_parent_data_1),
+ .ops = &clk_rcg2_shared_ops,
+ },
+};
+
+static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = {
+ .reg = 0x20d8,
+ .shift = 0,
+ .width = 2,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_byte0_div_clk_src",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_byte0_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .ops = &clk_regmap_div_ro_ops,
+ },
+};
+
+static struct clk_regmap_div disp_cc_mdss_dp_link_div_clk_src = {
+ .reg = 0x210c,
+ .shift = 0,
+ .width = 2,
+ .clkr.hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_link_div_clk_src",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_link_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_regmap_div_ro_ops,
+ },
+};
+
+static struct clk_branch disp_cc_mdss_ahb_clk = {
+ .halt_reg = 0x2048,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2048,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_ahb_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_ahb_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_byte0_clk = {
+ .halt_reg = 0x2024,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2024,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_byte0_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_byte0_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_byte0_intf_clk = {
+ .halt_reg = 0x2028,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2028,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_byte0_intf_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_byte0_div_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_dp_aux_clk = {
+ .halt_reg = 0x2044,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2044,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_aux_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_aux_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_dp_crypto_clk = {
+ .halt_reg = 0x2038,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2038,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_crypto_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_crypto_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_dp_link_clk = {
+ .halt_reg = 0x2030,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2030,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_link_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_link_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_dp_link_intf_clk = {
+ .halt_reg = 0x2034,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2034,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_link_intf_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_link_div_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_dp_pixel1_clk = {
+ .halt_reg = 0x2040,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2040,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_pixel1_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_pixel1_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_dp_pixel_clk = {
+ .halt_reg = 0x203c,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x203c,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_dp_pixel_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_dp_pixel_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_esc0_clk = {
+ .halt_reg = 0x202c,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x202c,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_esc0_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_esc0_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_mdp_clk = {
+ .halt_reg = 0x2008,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2008,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_mdp_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_mdp_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_mdp_lut_clk = {
+ .halt_reg = 0x2018,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2018,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_mdp_lut_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_mdp_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_non_gdsc_ahb_clk = {
+ .halt_reg = 0x4004,
+ .halt_check = BRANCH_HALT_VOTED,
+ .clkr = {
+ .enable_reg = 0x4004,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_non_gdsc_ahb_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_ahb_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_pclk0_clk = {
+ .halt_reg = 0x2004,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2004,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_pclk0_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_pclk0_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_rot_clk = {
+ .halt_reg = 0x2010,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2010,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_rot_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_rot_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_rscc_ahb_clk = {
+ .halt_reg = 0x400c,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x400c,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_rscc_ahb_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_ahb_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_rscc_vsync_clk = {
+ .halt_reg = 0x4008,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x4008,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_rscc_vsync_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_vsync_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch disp_cc_mdss_vsync_clk = {
+ .halt_reg = 0x2020,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x2020,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "disp_cc_mdss_vsync_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &disp_cc_mdss_vsync_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct gdsc mdss_core_gdsc = {
+ .gdscr = 0x3000,
+ .en_rest_wait_val = 0x2,
+ .en_few_wait_val = 0x2,
+ .clk_dis_wait_val = 0xf,
+ .pd = {
+ .name = "mdss_core_gdsc",
+ },
+ .pwrsts = PWRSTS_OFF_ON,
+ .flags = HW_CTRL | POLL_CFG_GDSCR,
+};
+
+static struct clk_regmap *disp_cc_qcs615_clocks[] = {
+ [DISP_CC_MDSS_AHB_CLK] = &disp_cc_mdss_ahb_clk.clkr,
+ [DISP_CC_MDSS_AHB_CLK_SRC] = &disp_cc_mdss_ahb_clk_src.clkr,
+ [DISP_CC_MDSS_BYTE0_CLK] = &disp_cc_mdss_byte0_clk.clkr,
+ [DISP_CC_MDSS_BYTE0_CLK_SRC] = &disp_cc_mdss_byte0_clk_src.clkr,
+ [DISP_CC_MDSS_BYTE0_DIV_CLK_SRC] = &disp_cc_mdss_byte0_div_clk_src.clkr,
+ [DISP_CC_MDSS_BYTE0_INTF_CLK] = &disp_cc_mdss_byte0_intf_clk.clkr,
+ [DISP_CC_MDSS_DP_AUX_CLK] = &disp_cc_mdss_dp_aux_clk.clkr,
+ [DISP_CC_MDSS_DP_AUX_CLK_SRC] = &disp_cc_mdss_dp_aux_clk_src.clkr,
+ [DISP_CC_MDSS_DP_CRYPTO_CLK] = &disp_cc_mdss_dp_crypto_clk.clkr,
+ [DISP_CC_MDSS_DP_CRYPTO_CLK_SRC] = &disp_cc_mdss_dp_crypto_clk_src.clkr,
+ [DISP_CC_MDSS_DP_LINK_CLK] = &disp_cc_mdss_dp_link_clk.clkr,
+ [DISP_CC_MDSS_DP_LINK_CLK_SRC] = &disp_cc_mdss_dp_link_clk_src.clkr,
+ [DISP_CC_MDSS_DP_LINK_DIV_CLK_SRC] = &disp_cc_mdss_dp_link_div_clk_src.clkr,
+ [DISP_CC_MDSS_DP_LINK_INTF_CLK] = &disp_cc_mdss_dp_link_intf_clk.clkr,
+ [DISP_CC_MDSS_DP_PIXEL1_CLK] = &disp_cc_mdss_dp_pixel1_clk.clkr,
+ [DISP_CC_MDSS_DP_PIXEL1_CLK_SRC] = &disp_cc_mdss_dp_pixel1_clk_src.clkr,
+ [DISP_CC_MDSS_DP_PIXEL_CLK] = &disp_cc_mdss_dp_pixel_clk.clkr,
+ [DISP_CC_MDSS_DP_PIXEL_CLK_SRC] = &disp_cc_mdss_dp_pixel_clk_src.clkr,
+ [DISP_CC_MDSS_ESC0_CLK] = &disp_cc_mdss_esc0_clk.clkr,
+ [DISP_CC_MDSS_ESC0_CLK_SRC] = &disp_cc_mdss_esc0_clk_src.clkr,
+ [DISP_CC_MDSS_MDP_CLK] = &disp_cc_mdss_mdp_clk.clkr,
+ [DISP_CC_MDSS_MDP_CLK_SRC] = &disp_cc_mdss_mdp_clk_src.clkr,
+ [DISP_CC_MDSS_MDP_LUT_CLK] = &disp_cc_mdss_mdp_lut_clk.clkr,
+ [DISP_CC_MDSS_NON_GDSC_AHB_CLK] = &disp_cc_mdss_non_gdsc_ahb_clk.clkr,
+ [DISP_CC_MDSS_PCLK0_CLK] = &disp_cc_mdss_pclk0_clk.clkr,
+ [DISP_CC_MDSS_PCLK0_CLK_SRC] = &disp_cc_mdss_pclk0_clk_src.clkr,
+ [DISP_CC_MDSS_ROT_CLK] = &disp_cc_mdss_rot_clk.clkr,
+ [DISP_CC_MDSS_ROT_CLK_SRC] = &disp_cc_mdss_rot_clk_src.clkr,
+ [DISP_CC_MDSS_RSCC_AHB_CLK] = &disp_cc_mdss_rscc_ahb_clk.clkr,
+ [DISP_CC_MDSS_RSCC_VSYNC_CLK] = &disp_cc_mdss_rscc_vsync_clk.clkr,
+ [DISP_CC_MDSS_VSYNC_CLK] = &disp_cc_mdss_vsync_clk.clkr,
+ [DISP_CC_MDSS_VSYNC_CLK_SRC] = &disp_cc_mdss_vsync_clk_src.clkr,
+ [DISP_CC_PLL0] = &disp_cc_pll0.clkr,
+};
+
+static struct gdsc *disp_cc_qcs615_gdscs[] = {
+ [MDSS_CORE_GDSC] = &mdss_core_gdsc,
+};
+
+static const struct regmap_config disp_cc_qcs615_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0x10000,
+ .fast_io = true,
+};
+
+static const struct qcom_cc_desc disp_cc_qcs615_desc = {
+ .config = &disp_cc_qcs615_regmap_config,
+ .clks = disp_cc_qcs615_clocks,
+ .num_clks = ARRAY_SIZE(disp_cc_qcs615_clocks),
+ .gdscs = disp_cc_qcs615_gdscs,
+ .num_gdscs = ARRAY_SIZE(disp_cc_qcs615_gdscs),
+};
+
+static const struct of_device_id disp_cc_qcs615_match_table[] = {
+ { .compatible = "qcom,qcs615-dispcc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, disp_cc_qcs615_match_table);
+
+static int disp_cc_qcs615_probe(struct platform_device *pdev)
+{
+ struct regmap *regmap;
+
+ regmap = qcom_cc_map(pdev, &disp_cc_qcs615_desc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ clk_alpha_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config);
+
+ /* Keep some clocks always enabled */
+ qcom_branch_set_clk_en(regmap, 0x6054); /* DISP_CC_XO_CLK */
+
+ return qcom_cc_really_probe(&pdev->dev, &disp_cc_qcs615_desc, regmap);
+}
+
+static struct platform_driver disp_cc_qcs615_driver = {
+ .probe = disp_cc_qcs615_probe,
+ .driver = {
+ .name = "dispcc-qcs615",
+ .of_match_table = disp_cc_qcs615_match_table,
+ },
+};
+
+module_platform_driver(disp_cc_qcs615_driver);
+
+MODULE_DESCRIPTION("QTI DISPCC QCS615 Driver");
+MODULE_LICENSE("GPL");

--
2.45.2