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References: <20220429151247.388837-1-robert.foss@linaro.org>
 <20220429151247.388837-4-robert.foss@linaro.org> <c0a5df00-dda5-3fe4-161f-a4ffda28077a@linaro.org>
In-Reply-To: <c0a5df00-dda5-3fe4-161f-a4ffda28077a@linaro.org>
From:   Robert Foss <robert.foss@linaro.org>
Date:   Mon, 2 May 2022 15:50:30 +0200
Message-ID: <CAG3jFyuTnaET53q_eS3wLe6bBObWnz25rTgMX9d+MbKDWzkhtQ@mail.gmail.com>
Subject: Re: [PATCH v1 4/9] clk: qcom: add support for SM8350 GPUCC
To:     Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc:     bjorn.andersson@linaro.org, agross@kernel.org,
        mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org,
        krzk+dt@kernel.org, jonathan@marek.ca, tdas@codeaurora.org,
        anischal@codeaurora.org, linux-arm-msm@vger.kernel.org,
        linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Fri, 29 Apr 2022 at 17:31, Dmitry Baryshkov
<dmitry.baryshkov@linaro.org> wrote:
>
> On 29/04/2022 18:12, Robert Foss wrote:
> > From: Jonathan Marek <jonathan@marek.ca>
> >
> > The GPUCC manages the clocks for the Adreno GPU found on the
> > sm8350 SoCs.
> >
> > Signed-off-by: Robert Foss <robert.foss@linaro.org>
> > ---
> >   drivers/clk/qcom/Kconfig        |   8 +
> >   drivers/clk/qcom/Makefile       |   1 +
> >   drivers/clk/qcom/gpucc-sm8350.c | 640 ++++++++++++++++++++++++++++++++
> >   3 files changed, 649 insertions(+)
> >   create mode 100644 drivers/clk/qcom/gpucc-sm8350.c
> >
> > diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
> > index e27f37ac2d9c..9b1f54e634b9 100644
> > --- a/drivers/clk/qcom/Kconfig
> > +++ b/drivers/clk/qcom/Kconfig
> > @@ -703,6 +703,14 @@ config SM_GPUCC_8250
> >         Say Y if you want to support graphics controller devices and
> >         functionality such as 3D graphics.
> >
> > +config SM_GPUCC_8350
> > +     tristate "SM8350 Graphics Clock Controller"
> > +     select SM_GCC_8350
> > +     help
> > +       Support for the graphics clock controller on SM8350 devices.
> > +       Say Y if you want to support graphics controller devices and
> > +       functionality such as 3D graphics.
> > +
> >   config SM_VIDEOCC_8150
> >       tristate "SM8150 Video Clock Controller"
> >       select SM_GCC_8150
> > diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
> > index dff6aeb980e6..e1b7e49c8da4 100644
> > --- a/drivers/clk/qcom/Makefile
> > +++ b/drivers/clk/qcom/Makefile
> > @@ -100,6 +100,7 @@ obj-$(CONFIG_SM_GCC_8450) += gcc-sm8450.o
> >   obj-$(CONFIG_SM_GPUCC_6350) += gpucc-sm6350.o
> >   obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o
> >   obj-$(CONFIG_SM_GPUCC_8250) += gpucc-sm8250.o
> > +obj-$(CONFIG_SM_GPUCC_8350) += gpucc-sm8350.o
> >   obj-$(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
> > diff --git a/drivers/clk/qcom/gpucc-sm8350.c b/drivers/clk/qcom/gpucc-sm8350.c
> > new file mode 100644
> > index 000000000000..d6098fd5e12f
> > --- /dev/null
> > +++ b/drivers/clk/qcom/gpucc-sm8350.c
> > @@ -0,0 +1,640 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
> > + */
> > +
> > +#include <linux/clk.h>
> > +#include <linux/err.h>
> > +#include <linux/kernel.h>
> > +#include <linux/module.h>
> > +#include <linux/of_device.h>
> > +#include <linux/of.h>
> > +#include <linux/regmap.h>
> > +
> > +#include <dt-bindings/clock/qcom,gpucc-sm8350.h>
> > +
> > +#include "clk-alpha-pll.h"
> > +#include "clk-branch.h"
> > +#include "clk-pll.h"
> > +#include "clk-rcg.h"
> > +#include "clk-regmap.h"
> > +#include "common.h"
> > +#include "clk-regmap-mux.h"
> > +#include "clk-regmap-divider.h"
> > +#include "gdsc.h"
> > +#include "reset.h"
> > +
> > +enum {
> > +     P_BI_TCXO,
> > +     P_GPLL0_OUT_MAIN,
> > +     P_GPLL0_OUT_MAIN_DIV,
> > +     P_GPU_CC_PLL0_OUT_MAIN,
> > +     P_GPU_CC_PLL1_OUT_MAIN,
> > +};
> > +
> > +static struct pll_vco lucid_5lpe_vco[] = {
> > +     { 249600000, 1750000000, 0 },
> > +};
> > +
> > +static const struct alpha_pll_config gpu_cc_pll0_config = {
> > +     .l = 0x18,
> > +     .alpha = 0x6000,
> > +     .config_ctl_val = 0x20485699,
> > +     .config_ctl_hi_val = 0x00002261,
> > +     .config_ctl_hi1_val = 0x2A9A699C,
> > +     .test_ctl_val = 0x00000000,
> > +     .test_ctl_hi_val = 0x00000000,
> > +     .test_ctl_hi1_val = 0x01800000,
> > +     .user_ctl_val = 0x00000000,
> > +     .user_ctl_hi_val = 0x00000805,
> > +     .user_ctl_hi1_val = 0x00000000,
> > +};
> > +
> > +static struct clk_alpha_pll gpu_cc_pll0 = {
> > +     .offset = 0x0,
> > +     .vco_table = lucid_5lpe_vco,
> > +     .num_vco = ARRAY_SIZE(lucid_5lpe_vco),
> > +     .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
> > +     .clkr = {
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_pll0",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .fw_name = "bi_tcxo",
> > +                             .name = "bi_tcxo",
>
> We are introducing new driver without previous non-dts bindings, so
> there is no need for .name fields.

Just to be clear, the '.name' field should only be removed for clk_parent_data?


>
> > +                     },
> > +                     .num_parents = 1,
> > +                     .ops = &clk_alpha_pll_lucid_5lpe_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static const struct alpha_pll_config gpu_cc_pll1_config = {
> > +     .l = 0x1A,
> > +     .alpha = 0xAAA,
> > +     .config_ctl_val = 0x20485699,
> > +     .config_ctl_hi_val = 0x00002261,
> > +     .config_ctl_hi1_val = 0x2A9A699C,
> > +     .test_ctl_val = 0x00000000,
> > +     .test_ctl_hi_val = 0x00000000,
> > +     .test_ctl_hi1_val = 0x01800000,
> > +     .user_ctl_val = 0x00000000,
> > +     .user_ctl_hi_val = 0x00000805,
> > +     .user_ctl_hi1_val = 0x00000000,
> > +};
> > +
> > +static struct clk_alpha_pll gpu_cc_pll1 = {
> > +     .offset = 0x100,
> > +     .vco_table = lucid_5lpe_vco,
> > +     .num_vco = ARRAY_SIZE(lucid_5lpe_vco),
> > +     .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
> > +     .clkr = {
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_pll1",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .fw_name = "bi_tcxo",
> > +                             .name = "bi_tcxo",
> > +                     },
> > +                     .num_parents = 1,
> > +                     .ops = &clk_alpha_pll_lucid_5lpe_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static const struct parent_map gpu_cc_parent_map_0[] = {
> > +     { P_BI_TCXO, 0 },
> > +     { P_GPU_CC_PLL0_OUT_MAIN, 1 },
> > +     { P_GPU_CC_PLL1_OUT_MAIN, 3 },
> > +     { P_GPLL0_OUT_MAIN, 5 },
> > +     { P_GPLL0_OUT_MAIN_DIV, 6 },
> > +};
> > +
> > +static const struct clk_parent_data gpu_cc_parent_data_0[] = {
> > +     { .fw_name = "bi_tcxo", .name = "bi_tcxo" },
> > +     { .hw = &gpu_cc_pll0.clkr.hw },
> > +     { .hw = &gpu_cc_pll1.clkr.hw },
> > +     { .fw_name = "gcc_gpu_gpll0_clk_src" },
> > +     { .fw_name = "gcc_gpu_gpll0_div_clk_src" },
> > +};
> > +
> > +static const struct parent_map gpu_cc_parent_map_1[] = {
> > +     { P_BI_TCXO, 0 },
> > +     { P_GPU_CC_PLL1_OUT_MAIN, 3 },
> > +     { P_GPLL0_OUT_MAIN, 5 },
> > +     { P_GPLL0_OUT_MAIN_DIV, 6 },
> > +};
> > +
> > +static const struct clk_parent_data gpu_cc_parent_data_1[] = {
> > +     { .fw_name = "bi_tcxo", .name = "bi_tcxo" },
> > +     { .hw = &gpu_cc_pll1.clkr.hw },
> > +     { .fw_name = "gcc_gpu_gpll0_clk_src" },
> > +     { .fw_name = "gcc_gpu_gpll0_div_clk_src" },
> > +};
> > +
> > +static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
> > +     F(19200000, P_BI_TCXO, 1, 0, 0),
> > +     F(200000000, P_GPLL0_OUT_MAIN_DIV, 1.5, 0, 0),
> > +     F(500000000, P_GPU_CC_PLL1_OUT_MAIN, 1, 0, 0),
> > +     { }
> > +};
> > +
> > +static struct clk_rcg2 gpu_cc_gmu_clk_src = {
> > +     .cmd_rcgr = 0x1120,
> > +     .mnd_width = 0,
> > +     .hid_width = 5,
> > +     .parent_map = gpu_cc_parent_map_0,
> > +     .freq_tbl = ftbl_gpu_cc_gmu_clk_src,
> > +     .clkr.hw.init = &(struct clk_init_data){
> > +             .name = "gpu_cc_gmu_clk_src",
> > +             .parent_data = gpu_cc_parent_data_0,
> > +             .num_parents = 5,
>
> Could you please use ARRAY_SIZE()

Ack.

>
> > +             .flags = CLK_SET_RATE_PARENT,
> > +             .ops = &clk_rcg2_ops,
> > +     },
> > +};
> > +
> > +static const struct freq_tbl ftbl_gpu_cc_hub_clk_src[] = {
> > +     F(150000000, P_GPLL0_OUT_MAIN_DIV, 2, 0, 0),
> > +     F(240000000, P_GPLL0_OUT_MAIN, 2.5, 0, 0),
> > +     F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
> > +     { }
> > +};
> > +
> > +static struct clk_rcg2 gpu_cc_hub_clk_src = {
> > +     .cmd_rcgr = 0x117c,
> > +     .mnd_width = 0,
> > +     .hid_width = 5,
> > +     .parent_map = gpu_cc_parent_map_1,
> > +     .freq_tbl = ftbl_gpu_cc_hub_clk_src,
> > +     .clkr.hw.init = &(struct clk_init_data){
> > +             .name = "gpu_cc_hub_clk_src",
> > +             .parent_data = gpu_cc_parent_data_1,
> > +             .num_parents = 4,
> > +             .flags = CLK_SET_RATE_PARENT,
> > +             .ops = &clk_rcg2_ops,
> > +     },
> > +};
> > +
> > +static struct clk_regmap_div gpu_cc_hub_ahb_div_clk_src = {
> > +     .reg = 0x11c0,
> > +     .shift = 0,
> > +     .width = 4,
> > +     .clkr.hw.init = &(struct clk_init_data) {
> > +             .name = "gpu_cc_hub_ahb_div_clk_src",
> > +             .parent_data = &(const struct clk_parent_data){
> > +                     .hw = &gpu_cc_hub_clk_src.clkr.hw,
> > +             },
> > +             .num_parents = 1,
> > +             .flags = CLK_SET_RATE_PARENT,
> > +             .ops = &clk_regmap_div_ro_ops,
> > +     },
> > +};
> > +
> > +static struct clk_regmap_div gpu_cc_hub_cx_int_div_clk_src = {
> > +     .reg = 0x11bc,
> > +     .shift = 0,
> > +     .width = 4,
> > +     .clkr.hw.init = &(struct clk_init_data) {
> > +             .name = "gpu_cc_hub_cx_int_div_clk_src",
> > +             .parent_data = &(const struct clk_parent_data){
> > +                     .hw = &gpu_cc_hub_clk_src.clkr.hw,
> > +             },
> > +             .num_parents = 1,
> > +             .flags = CLK_SET_RATE_PARENT,
> > +             .ops = &clk_regmap_div_ro_ops,
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_ahb_clk = {
> > +     .halt_reg = 0x1078,
> > +     .halt_check = BRANCH_HALT_DELAY,
> > +     .clkr = {
> > +             .enable_reg = 0x1078,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_ahb_clk",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .hw = &gpu_cc_hub_ahb_div_clk_src.clkr.hw,
> > +                     },
> > +                     .num_parents = 1,
> > +                     .flags = CLK_SET_RATE_PARENT,
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cb_clk = {
> > +     .halt_reg = 0x1170,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x1170,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cb_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_crc_ahb_clk = {
> > +     .halt_reg = 0x107c,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x107c,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_crc_ahb_clk",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .hw = &gpu_cc_hub_ahb_div_clk_src.clkr.hw,
> > +                     },
> > +                     .num_parents = 1,
> > +                     .flags = CLK_SET_RATE_PARENT,
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cx_apb_clk = {
> > +     .halt_reg = 0x1088,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1088,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cx_apb_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cx_gmu_clk = {
> > +     .halt_reg = 0x1098,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x1098,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cx_gmu_clk",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .hw = &gpu_cc_gmu_clk_src.clkr.hw,
> > +                     },
> > +                     .num_parents = 1,
> > +                     .flags = CLK_SET_RATE_PARENT,
> > +                     .ops = &clk_branch2_aon_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cx_qdss_at_clk = {
> > +     .halt_reg = 0x1080,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1080,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cx_qdss_at_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cx_qdss_trig_clk = {
> > +     .halt_reg = 0x1094,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1094,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cx_qdss_trig_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cx_qdss_tsctr_clk = {
> > +     .halt_reg = 0x1084,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1084,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cx_qdss_tsctr_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cx_snoc_dvm_clk = {
> > +     .halt_reg = 0x108c,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x108c,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cx_snoc_dvm_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cxo_aon_clk = {
> > +     .halt_reg = 0x1004,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1004,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cxo_aon_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_cxo_clk = {
> > +     .halt_reg = 0x109c,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x109c,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_cxo_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_freq_measure_clk = {
> > +     .halt_reg = 0x120c,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x120c,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_freq_measure_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_gx_gmu_clk = {
> > +     .halt_reg = 0x1064,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x1064,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_gx_gmu_clk",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .hw = &gpu_cc_gmu_clk_src.clkr.hw,
> > +                     },
> > +                     .num_parents = 1,
> > +                     .flags = CLK_SET_RATE_PARENT,
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_gx_qdss_tsctr_clk = {
> > +     .halt_reg = 0x105c,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x105c,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_gx_qdss_tsctr_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_gx_vsense_clk = {
> > +     .halt_reg = 0x1058,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1058,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_gx_vsense_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_hlos1_vote_gpu_smmu_clk = {
> > +     .halt_reg = 0x5000,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x5000,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_hlos1_vote_gpu_smmu_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_hub_aon_clk = {
> > +     .halt_reg = 0x1178,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x1178,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_hub_aon_clk",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .hw = &gpu_cc_hub_clk_src.clkr.hw,
> > +                     },
> > +                     .num_parents = 1,
> > +                     .flags = CLK_SET_RATE_PARENT,
> > +                     .ops = &clk_branch2_aon_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_hub_cx_int_clk = {
> > +     .halt_reg = 0x1204,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x1204,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_hub_cx_int_clk",
> > +                     .parent_data = &(const struct clk_parent_data){
> > +                             .hw = &gpu_cc_hub_cx_int_div_clk_src.clkr.hw,
> > +                     },
> > +                     .num_parents = 1,
> > +                     .flags = CLK_SET_RATE_PARENT,
> > +                     .ops = &clk_branch2_aon_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_mnd1x_0_gfx3d_clk = {
> > +     .halt_reg = 0x802c,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x802c,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_mnd1x_0_gfx3d_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_mnd1x_1_gfx3d_clk = {
> > +     .halt_reg = 0x8030,
> > +     .halt_check = BRANCH_HALT,
> > +     .clkr = {
> > +             .enable_reg = 0x8030,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_mnd1x_1_gfx3d_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct clk_branch gpu_cc_sleep_clk = {
> > +     .halt_reg = 0x1090,
> > +     .halt_check = BRANCH_HALT_VOTED,
> > +     .clkr = {
> > +             .enable_reg = 0x1090,
> > +             .enable_mask = BIT(0),
> > +             .hw.init = &(struct clk_init_data){
> > +                     .name = "gpu_cc_sleep_clk",
> > +                     .ops = &clk_branch2_ops,
> > +             },
> > +     },
> > +};
> > +
> > +static struct gdsc gpu_cx_gdsc = {
> > +     .gdscr = 0x106c,
> > +     .gds_hw_ctrl = 0x1540,
> > +     .pd = {
> > +             .name = "gpu_cx_gdsc",
> > +     },
> > +     .pwrsts = PWRSTS_OFF_ON,
> > +     .flags = VOTABLE,
> > +};
> > +
> > +static struct gdsc gpu_gx_gdsc = {
> > +     .gdscr = 0x100c,
> > +     // sw-reset = 0x1008,
> > +     // domain-addr = 0x158c,
> > +     .clamp_io_ctrl = 0x1508, // real?
>
> Should this be fixed or removed?

Looking at downstream & sm8250, I think this should be removed.

>
> > +     .pd = {
> > +             .name = "gpu_gx_gdsc",
> > +             .power_on = gdsc_gx_do_nothing_enable,
> > +     },
> > +     .pwrsts = PWRSTS_OFF_ON,
> > +     .flags = AON_RESET | POLL_CFG_GDSCR,
>
> Comparing this with other gpucc drivers, don't we need CLAMP_IO here?

Agreed.

>
> > +};
> > +
> > +static struct clk_regmap *gpu_cc_sm8350_clocks[] = {
> > +     [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
> > +     [GPU_CC_CB_CLK] = &gpu_cc_cb_clk.clkr,
> > +     [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
> > +     [GPU_CC_CX_APB_CLK] = &gpu_cc_cx_apb_clk.clkr,
> > +     [GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
> > +     [GPU_CC_CX_QDSS_AT_CLK] = &gpu_cc_cx_qdss_at_clk.clkr,
> > +     [GPU_CC_CX_QDSS_TRIG_CLK] = &gpu_cc_cx_qdss_trig_clk.clkr,
> > +     [GPU_CC_CX_QDSS_TSCTR_CLK] = &gpu_cc_cx_qdss_tsctr_clk.clkr,
> > +     [GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr,
> > +     [GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr,
> > +     [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
> > +     [GPU_CC_FREQ_MEASURE_CLK] = &gpu_cc_freq_measure_clk.clkr,
> > +     [GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
> > +     [GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
> > +     [GPU_CC_GX_QDSS_TSCTR_CLK] = &gpu_cc_gx_qdss_tsctr_clk.clkr,
> > +     [GPU_CC_GX_VSENSE_CLK] = &gpu_cc_gx_vsense_clk.clkr,
> > +     [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
> > +     [GPU_CC_HUB_AHB_DIV_CLK_SRC] = &gpu_cc_hub_ahb_div_clk_src.clkr,
> > +     [GPU_CC_HUB_AON_CLK] = &gpu_cc_hub_aon_clk.clkr,
> > +     [GPU_CC_HUB_CLK_SRC] = &gpu_cc_hub_clk_src.clkr,
> > +     [GPU_CC_HUB_CX_INT_CLK] = &gpu_cc_hub_cx_int_clk.clkr,
> > +     [GPU_CC_HUB_CX_INT_DIV_CLK_SRC] = &gpu_cc_hub_cx_int_div_clk_src.clkr,
> > +     [GPU_CC_MND1X_0_GFX3D_CLK] = &gpu_cc_mnd1x_0_gfx3d_clk.clkr,
> > +     [GPU_CC_MND1X_1_GFX3D_CLK] = &gpu_cc_mnd1x_1_gfx3d_clk.clkr,
> > +     [GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
> > +     [GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
> > +     [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr,
> > +};
> > +
> > +static const struct qcom_reset_map gpu_cc_sm8350_resets[] = {
> > +     [GPUCC_GPU_CC_ACD_BCR] = { 0x1160 },
> > +     [GPUCC_GPU_CC_CB_BCR] = { 0x116c },
> > +     [GPUCC_GPU_CC_CX_BCR] = { 0x1068 },
> > +     [GPUCC_GPU_CC_FAST_HUB_BCR] = { 0x1174 },
> > +     [GPUCC_GPU_CC_GFX3D_AON_BCR] = { 0x10a0 },
> > +     [GPUCC_GPU_CC_GMU_BCR] = { 0x111c },
> > +     [GPUCC_GPU_CC_GX_BCR] = { 0x1008 },
> > +     [GPUCC_GPU_CC_XO_BCR] = { 0x1000 },
> > +};
> > +
> > +static struct gdsc *gpu_cc_sm8350_gdscs[] = {
> > +     [GPU_CX_GDSC] = &gpu_cx_gdsc,
> > +     [GPU_GX_GDSC] = &gpu_gx_gdsc,
> > +};
> > +
> > +static const struct regmap_config gpu_cc_sm8350_regmap_config = {
> > +     .reg_bits = 32,
> > +     .reg_stride = 4,
> > +     .val_bits = 32,
> > +     .max_register = 0x8030,
> > +     .fast_io = true,
> > +};
> > +
> > +static const struct qcom_cc_desc gpu_cc_sm8350_desc = {
> > +     .config = &gpu_cc_sm8350_regmap_config,
> > +     .clks = gpu_cc_sm8350_clocks,
> > +     .num_clks = ARRAY_SIZE(gpu_cc_sm8350_clocks),
> > +     .resets = gpu_cc_sm8350_resets,
> > +     .num_resets = ARRAY_SIZE(gpu_cc_sm8350_resets),
> > +     .gdscs = gpu_cc_sm8350_gdscs,
> > +     .num_gdscs = ARRAY_SIZE(gpu_cc_sm8350_gdscs),
> > +};
> > +
> > +static const struct of_device_id gpu_cc_sm8350_match_table[] = {
> > +     { .compatible = "qcom,sm8350-gpucc" },
> > +     { }
> > +};
> > +MODULE_DEVICE_TABLE(of, gpu_cc_sm8350_match_table);
> > +
> > +static int gpu_cc_sm8350_probe(struct platform_device *pdev)
> > +{
> > +     struct regmap *regmap;
> > +
> > +     regmap = qcom_cc_map(pdev, &gpu_cc_sm8350_desc);
> > +     if (IS_ERR(regmap)) {
> > +             dev_err(&pdev->dev, "Failed to map gpu cc registers\n");
> > +             return PTR_ERR(regmap);
> > +     }
> > +
> > +     clk_lucid_pll_configure(&gpu_cc_pll0, regmap, &gpu_cc_pll0_config);
> > +     clk_lucid_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);
> > +
> > +     return qcom_cc_really_probe(pdev, &gpu_cc_sm8350_desc, regmap);
> > +}
> > +
> > +static struct platform_driver gpu_cc_sm8350_driver = {
> > +     .probe = gpu_cc_sm8350_probe,
> > +     .driver = {
> > +             .name = "sm8350-gpucc",
> > +             .of_match_table = gpu_cc_sm8350_match_table,
> > +     },
> > +};
> > +
> > +static int __init gpu_cc_sm8350_init(void)
> > +{
> > +     return platform_driver_register(&gpu_cc_sm8350_driver);
> > +}
> > +subsys_initcall(gpu_cc_sm8350_init);
> > +
> > +static void __exit gpu_cc_sm8350_exit(void)
> > +{
> > +     platform_driver_unregister(&gpu_cc_sm8350_driver);
> > +}
> > +module_exit(gpu_cc_sm8350_exit);
> > +
> > +MODULE_DESCRIPTION("QTI GPU_CC SM8350 Driver");
> > +MODULE_LICENSE("GPL v2");
>
>
> --
> With best wishes
> Dmitry