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Message-ID: <0c0c4b77-81f0-501b-1957-0bccba7686f8@linaro.org>
Date:   Fri, 16 Jun 2023 13:22:33 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Imran Shaik <quic_imrashai@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Melody Olvera <quic_molvera@...cinc.com>,
        Taniya Das <quic_tdas@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        Satya Priya Kakitapalli <quic_skakitap@...cinc.com>,
        Ajit Pandey <quic_ajipan@...cinc.com>
Subject: Re: [PATCH 2/2] clk: qcom: gcc-qdu1000: Update GCC clocks and add
 support for GDSCs

On 16.06.2023 12:49, Imran Shaik wrote:
> Update the GCC clocks and add support for GDSCs for QDU1000 and
> QRU1000 SoCs. While at it, fix the PCIe pipe clock handling and
> add support for v2 variant.
Too much for a single change. If somebody wants to bisect an issue, they
would have to edit chunks of this patch.

Konrad
> 
> Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
> Signed-off-by: Imran Shaik <quic_imrashai@...cinc.com>
> ---
>  drivers/clk/qcom/gcc-qdu1000.c | 162 ++++++++++++++++++++++-----------
>  1 file changed, 110 insertions(+), 52 deletions(-)
> 
> diff --git a/drivers/clk/qcom/gcc-qdu1000.c b/drivers/clk/qcom/gcc-qdu1000.c
> index 5051769ad90c..5d8125c0eacc 100644
> --- a/drivers/clk/qcom/gcc-qdu1000.c
> +++ b/drivers/clk/qcom/gcc-qdu1000.c
> @@ -1,6 +1,6 @@
>  // SPDX-License-Identifier: GPL-2.0-only
>  /*
> - * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
> + * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
>   */
>  
>  #include <linux/clk-provider.h>
> @@ -17,6 +17,7 @@
>  #include "clk-regmap-divider.h"
>  #include "clk-regmap-mux.h"
>  #include "clk-regmap-phy-mux.h"
> +#include "gdsc.h"
>  #include "reset.h"
>  
>  enum {
> @@ -370,16 +371,6 @@ static const struct clk_parent_data gcc_parent_data_6[] = {
>  	{ .index = DT_TCXO_IDX },
>  };
>  
> -static const struct parent_map gcc_parent_map_7[] = {
> -	{ P_PCIE_0_PIPE_CLK, 0 },
> -	{ P_BI_TCXO, 2 },
> -};
> -
> -static const struct clk_parent_data gcc_parent_data_7[] = {
> -	{ .index = DT_PCIE_0_PIPE_CLK_IDX },
> -	{ .index = DT_TCXO_IDX },
> -};
> -
>  static const struct parent_map gcc_parent_map_8[] = {
>  	{ P_BI_TCXO, 0 },
>  	{ P_GCC_GPLL0_OUT_MAIN, 1 },
> @@ -439,16 +430,15 @@ static struct clk_regmap_mux gcc_pcie_0_phy_aux_clk_src = {
>  	},
>  };
>  
> -static struct clk_regmap_mux gcc_pcie_0_pipe_clk_src = {
> +static struct clk_regmap_phy_mux gcc_pcie_0_pipe_clk_src = {
>  	.reg = 0x9d064,
> -	.shift = 0,
> -	.width = 2,
> -	.parent_map = gcc_parent_map_7,
>  	.clkr = {
>  		.hw.init = &(const struct clk_init_data) {
>  			.name = "gcc_pcie_0_pipe_clk_src",
> -			.parent_data = gcc_parent_data_7,
> -			.num_parents = ARRAY_SIZE(gcc_parent_data_7),
> +			.parent_data = &(const struct clk_parent_data){
> +				.index = DT_PCIE_0_PIPE_CLK_IDX,
> +			},
> +			.num_parents = 1,
>  			.ops = &clk_regmap_phy_mux_ops,
>  		},
>  	},
> @@ -485,7 +475,7 @@ static struct clk_rcg2 gcc_aggre_noc_ecpri_dma_clk_src = {
>  		.name = "gcc_aggre_noc_ecpri_dma_clk_src",
>  		.parent_data = gcc_parent_data_4,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_4),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -505,7 +495,7 @@ static struct clk_rcg2 gcc_aggre_noc_ecpri_gsi_clk_src = {
>  		.name = "gcc_aggre_noc_ecpri_gsi_clk_src",
>  		.parent_data = gcc_parent_data_5,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_5),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -524,7 +514,7 @@ static struct clk_rcg2 gcc_gp1_clk_src = {
>  		.name = "gcc_gp1_clk_src",
>  		.parent_data = gcc_parent_data_1,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_1),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -538,7 +528,7 @@ static struct clk_rcg2 gcc_gp2_clk_src = {
>  		.name = "gcc_gp2_clk_src",
>  		.parent_data = gcc_parent_data_1,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_1),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -552,7 +542,7 @@ static struct clk_rcg2 gcc_gp3_clk_src = {
>  		.name = "gcc_gp3_clk_src",
>  		.parent_data = gcc_parent_data_1,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_1),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -571,7 +561,7 @@ static struct clk_rcg2 gcc_pcie_0_aux_clk_src = {
>  		.name = "gcc_pcie_0_aux_clk_src",
>  		.parent_data = gcc_parent_data_3,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_3),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -591,7 +581,7 @@ static struct clk_rcg2 gcc_pcie_0_phy_rchng_clk_src = {
>  		.name = "gcc_pcie_0_phy_rchng_clk_src",
>  		.parent_data = gcc_parent_data_0,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -610,7 +600,7 @@ static struct clk_rcg2 gcc_pdm2_clk_src = {
>  		.name = "gcc_pdm2_clk_src",
>  		.parent_data = gcc_parent_data_0,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -632,7 +622,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s0_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s0_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s0_clk_src = {
> @@ -648,7 +638,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s1_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s1_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s1_clk_src = {
> @@ -664,7 +654,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s2_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s2_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s2_clk_src = {
> @@ -680,7 +670,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s3_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s3_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s3_clk_src = {
> @@ -696,7 +686,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s4_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s4_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s4_clk_src = {
> @@ -717,7 +707,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s5_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s5_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s5_clk_src = {
> @@ -733,7 +723,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s6_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s6_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s6_clk_src = {
> @@ -749,7 +739,7 @@ static struct clk_init_data gcc_qupv3_wrap0_s7_clk_src_init = {
>  	.name = "gcc_qupv3_wrap0_s7_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap0_s7_clk_src = {
> @@ -765,7 +755,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s0_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s0_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s0_clk_src = {
> @@ -781,7 +771,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s1_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s1_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s1_clk_src = {
> @@ -797,7 +787,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s2_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s2_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s2_clk_src = {
> @@ -813,7 +803,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s3_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s3_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s3_clk_src = {
> @@ -829,7 +819,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s4_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s4_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s4_clk_src = {
> @@ -845,7 +835,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s5_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s5_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s5_clk_src = {
> @@ -861,7 +851,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s6_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s6_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s6_clk_src = {
> @@ -877,7 +867,7 @@ static struct clk_init_data gcc_qupv3_wrap1_s7_clk_src_init = {
>  	.name = "gcc_qupv3_wrap1_s7_clk_src",
>  	.parent_data = gcc_parent_data_0,
>  	.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -	.ops = &clk_rcg2_ops,
> +	.ops = &clk_rcg2_shared_ops,
>  };
>  
>  static struct clk_rcg2 gcc_qupv3_wrap1_s7_clk_src = {
> @@ -913,7 +903,7 @@ static struct clk_rcg2 gcc_sdcc5_apps_clk_src = {
>  		.name = "gcc_sdcc5_apps_clk_src",
>  		.parent_data = gcc_parent_data_8,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_8),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_floor_ops,
>  	},
>  };
>  
> @@ -932,7 +922,7 @@ static struct clk_rcg2 gcc_sdcc5_ice_core_clk_src = {
>  		.name = "gcc_sdcc5_ice_core_clk_src",
>  		.parent_data = gcc_parent_data_2,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_2),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_floor_ops,
>  	},
>  };
>  
> @@ -946,7 +936,7 @@ static struct clk_rcg2 gcc_sm_bus_xo_clk_src = {
>  		.name = "gcc_sm_bus_xo_clk_src",
>  		.parent_data = gcc_parent_data_2,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_2),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -965,7 +955,7 @@ static struct clk_rcg2 gcc_tsc_clk_src = {
>  		.name = "gcc_tsc_clk_src",
>  		.parent_data = gcc_parent_data_9,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_9),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -985,7 +975,7 @@ static struct clk_rcg2 gcc_usb30_prim_master_clk_src = {
>  		.name = "gcc_usb30_prim_master_clk_src",
>  		.parent_data = gcc_parent_data_0,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -999,7 +989,7 @@ static struct clk_rcg2 gcc_usb30_prim_mock_utmi_clk_src = {
>  		.name = "gcc_usb30_prim_mock_utmi_clk_src",
>  		.parent_data = gcc_parent_data_0,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_0),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -1013,7 +1003,7 @@ static struct clk_rcg2 gcc_usb3_prim_phy_aux_clk_src = {
>  		.name = "gcc_usb3_prim_phy_aux_clk_src",
>  		.parent_data = gcc_parent_data_3,
>  		.num_parents = ARRAY_SIZE(gcc_parent_data_3),
> -		.ops = &clk_rcg2_ops,
> +		.ops = &clk_rcg2_shared_ops,
>  	},
>  };
>  
> @@ -1142,6 +1132,26 @@ static struct clk_branch gcc_ddrss_ecpri_dma_clk = {
>  	},
>  };
>  
> +static struct clk_branch gcc_ddrss_ecpri_gsi_clk = {
> +	.halt_reg = 0x54298,
> +	.halt_check = BRANCH_HALT_VOTED,
> +	.hwcg_reg = 0x54298,
> +	.hwcg_bit = 1,
> +	.clkr = {
> +		.enable_reg = 0x54298,
> +		.enable_mask = BIT(0),
> +		.hw.init = &(const struct clk_init_data) {
> +			.name = "gcc_ddrss_ecpri_gsi_clk",
> +			.parent_hws = (const struct clk_hw*[]) {
> +				&gcc_aggre_noc_ecpri_gsi_clk_src.clkr.hw,
> +			},
> +			.num_parents = 1,
> +			.flags = CLK_SET_RATE_PARENT,
> +			.ops = &clk_branch2_aon_ops,
> +		},
> +	},
> +};
> +
>  static struct clk_branch gcc_ecpri_ahb_clk = {
>  	.halt_reg = 0x3a008,
>  	.halt_check = BRANCH_HALT_VOTED,
> @@ -1458,14 +1468,13 @@ static struct clk_branch gcc_pcie_0_cfg_ahb_clk = {
>  
>  static struct clk_branch gcc_pcie_0_clkref_en = {
>  	.halt_reg = 0x9c004,
> -	.halt_bit = 31,
>  	.halt_check = BRANCH_HALT_ENABLE,
>  	.clkr = {
>  		.enable_reg = 0x9c004,
>  		.enable_mask = BIT(0),
>  		.hw.init = &(const struct clk_init_data) {
>  			.name = "gcc_pcie_0_clkref_en",
> -			.ops = &clk_branch_ops,
> +			.ops = &clk_branch2_ops,
>  		},
>  	},
>  };
> @@ -2285,14 +2294,13 @@ static struct clk_branch gcc_tsc_etu_clk = {
>  
>  static struct clk_branch gcc_usb2_clkref_en = {
>  	.halt_reg = 0x9c008,
> -	.halt_bit = 31,
>  	.halt_check = BRANCH_HALT_ENABLE,
>  	.clkr = {
>  		.enable_reg = 0x9c008,
>  		.enable_mask = BIT(0),
>  		.hw.init = &(const struct clk_init_data) {
>  			.name = "gcc_usb2_clkref_en",
> -			.ops = &clk_branch_ops,
> +			.ops = &clk_branch2_ops,
>  		},
>  	},
>  };
> @@ -2402,6 +2410,39 @@ static struct clk_branch gcc_usb3_prim_phy_pipe_clk = {
>  	},
>  };
>  
> +static struct gdsc pcie_0_gdsc = {
> +	.gdscr = 0x9d004,
> +	.en_rest_wait_val = 0x2,
> +	.en_few_wait_val = 0x2,
> +	.clk_dis_wait_val = 0xf,
> +	.pd = {
> +		.name = "gcc_pcie_0_gdsc",
> +	},
> +	.pwrsts = PWRSTS_OFF_ON,
> +};
> +
> +static struct gdsc pcie_0_phy_gdsc = {
> +	.gdscr = 0x7c004,
> +	.en_rest_wait_val = 0x2,
> +	.en_few_wait_val = 0x2,
> +	.clk_dis_wait_val = 0x2,
> +	.pd = {
> +		.name = "gcc_pcie_0_phy_gdsc",
> +	},
> +	.pwrsts = PWRSTS_OFF_ON,
> +};
> +
> +static struct gdsc usb30_prim_gdsc = {
> +	.gdscr = 0x49004,
> +	.en_rest_wait_val = 0x2,
> +	.en_few_wait_val = 0x2,
> +	.clk_dis_wait_val = 0xf,
> +	.pd = {
> +		.name = "gcc_usb30_prim_gdsc",
> +	},
> +	.pwrsts = PWRSTS_OFF_ON,
> +};
> +
>  static struct clk_regmap *gcc_qdu1000_clocks[] = {
>  	[GCC_AGGRE_NOC_ECPRI_DMA_CLK] = &gcc_aggre_noc_ecpri_dma_clk.clkr,
>  	[GCC_AGGRE_NOC_ECPRI_DMA_CLK_SRC] = &gcc_aggre_noc_ecpri_dma_clk_src.clkr,
> @@ -2534,6 +2575,14 @@ static struct clk_regmap *gcc_qdu1000_clocks[] = {
>  	[GCC_AGGRE_NOC_ECPRI_GSI_CLK] = &gcc_aggre_noc_ecpri_gsi_clk.clkr,
>  	[GCC_PCIE_0_PHY_AUX_CLK_SRC] = &gcc_pcie_0_phy_aux_clk_src.clkr,
>  	[GCC_PCIE_0_PIPE_CLK_SRC] = &gcc_pcie_0_pipe_clk_src.clkr,
> +	[GCC_GPLL1_OUT_EVEN] = &gcc_gpll1_out_even.clkr,
> +	[GCC_DDRSS_ECPRI_GSI_CLK] = NULL,
> +};
> +
> +static struct gdsc *gcc_qdu1000_gdscs[] = {
> +	[PCIE_0_GDSC] = &pcie_0_gdsc,
> +	[PCIE_0_PHY_GDSC] = &pcie_0_phy_gdsc,
> +	[USB30_PRIM_GDSC] = &usb30_prim_gdsc,
>  };
>  
>  static const struct qcom_reset_map gcc_qdu1000_resets[] = {
> @@ -2597,10 +2646,13 @@ static const struct qcom_cc_desc gcc_qdu1000_desc = {
>  	.num_clks = ARRAY_SIZE(gcc_qdu1000_clocks),
>  	.resets = gcc_qdu1000_resets,
>  	.num_resets = ARRAY_SIZE(gcc_qdu1000_resets),
> +	.gdscs = gcc_qdu1000_gdscs,
> +	.num_gdscs = ARRAY_SIZE(gcc_qdu1000_gdscs),
>  };
>  
>  static const struct of_device_id gcc_qdu1000_match_table[] = {
>  	{ .compatible = "qcom,qdu1000-gcc" },
> +	{ .compatible = "qcom,qdu1000-gcc-v2" },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(of, gcc_qdu1000_match_table);
> @@ -2617,6 +2669,12 @@ static int gcc_qdu1000_probe(struct platform_device *pdev)
>  	/* Update FORCE_MEM_CORE_ON for gcc_pcie_0_mstr_axi_clk */
>  	regmap_update_bits(regmap, 0x9d024, BIT(14), BIT(14));
>  
> +	if (of_device_is_compatible(pdev->dev.of_node, "qcom,qdu1000-gcc-v2")) {
> +		gcc_qdu1000_clocks[GCC_DDRSS_ECPRI_GSI_CLK] = &gcc_ddrss_ecpri_gsi_clk.clkr;
> +		gcc_pcie_0_clkref_en.halt_check = BRANCH_HALT_DELAY;
> +		gcc_usb2_clkref_en.halt_check = BRANCH_HALT_DELAY;
> +	}
> +
>  	ret = qcom_cc_register_rcg_dfs(regmap, gcc_dfs_clocks,
>  				       ARRAY_SIZE(gcc_dfs_clocks));
>  	if (ret)

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