linux-kernel - Re: [PATCH v3 3/3] clk: qcom: Add Global Clock controller (GCC) driver for SC7180

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Message-ID: <74643831-1a58-e279-aca3-8753f5fcbe04@codeaurora.org>
Date:   Thu, 19 Sep 2019 16:38:19 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     Taniya Das <tdas@...eaurora.org>, Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>, robh+dt@...nel.org
Cc:     David Brown <david.brown@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v3 3/3] clk: qcom: Add Global Clock controller (GCC)
 driver for SC7180

[]..

> +static struct clk_rcg_dfs_data gcc_dfs_clocks[] = {
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap0_s0_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap0_s1_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap0_s2_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap0_s3_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap0_s4_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap0_s5_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap1_s0_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap1_s1_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap1_s2_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap1_s3_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap1_s4_clk_src),
> +	DEFINE_RCG_DFS(gcc_qupv3_wrap1_s5_clk_src),
> +};

this fails to build..

In file included from drivers/clk/qcom/gcc-sc7180.c:17:0:
drivers/clk/qcom/gcc-sc7180.c:2429:17: error: ‘gcc_qupv3_wrap0_s0_clk_src_src’ undeclared here (not in a function)
   DEFINE_RCG_DFS(gcc_qupv3_wrap0_s0_clk_src),
                  ^
drivers/clk/qcom/clk-rcg.h:171:12: note: in definition of macro ‘DEFINE_RCG_DFS’
   { .rcg = &r##_src, .init = &r##_init }
             ^
drivers/clk/qcom/gcc-sc7180.c:2430:17: error: ‘gcc_qupv3_wrap0_s1_clk_src_src’ undeclared here (not in a function)
   DEFINE_RCG_DFS(gcc_qupv3_wrap0_s1_clk_src),
                  ^
drivers/clk/qcom/clk-rcg.h:171:12: note: in definition of macro ‘DEFINE_RCG_DFS’
   { .rcg = &r##_src, .init = &r##_init }
             ^
Perhaps you should drop _src here and in the clk_init_data names.

> +
> +static const struct regmap_config gcc_sc7180_regmap_config = {
> +	.reg_bits = 32,
> +	.reg_stride = 4,
> +	.val_bits = 32,
> +	.max_register = 0x18208c,
> +	.fast_io = true,
> +};
> +
> +static const struct qcom_cc_desc gcc_sc7180_desc = {
> +	.config = &gcc_sc7180_regmap_config,
> +	.clk_hws = gcc_sc7180_hws,
> +	.num_clk_hws = ARRAY_SIZE(gcc_sc7180_hws),
> +	.clks = gcc_sc7180_clocks,
> +	.num_clks = ARRAY_SIZE(gcc_sc7180_clocks),
> +	.resets = gcc_sc7180_resets,
> +	.num_resets = ARRAY_SIZE(gcc_sc7180_resets),
> +	.gdscs = gcc_sc7180_gdscs,
> +	.num_gdscs = ARRAY_SIZE(gcc_sc7180_gdscs),
> +};
> +
> +static const struct of_device_id gcc_sc7180_match_table[] = {
> +	{ .compatible = "qcom,gcc-sc7180" },
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, gcc_sc7180_match_table);
> +
> +static int gcc_sc7180_probe(struct platform_device *pdev)
> +{
> +	struct regmap *regmap;
> +	int ret;
> +
> +	regmap = qcom_cc_map(pdev, &gcc_sc7180_desc);
> +	if (IS_ERR(regmap))
> +		return PTR_ERR(regmap);
> +
> +	/*
> +	 * Disable the GPLL0 active input to MM blocks, NPU
> +	 * and GPU via MISC registers.
> +	 */
> +	regmap_update_bits(regmap, GCC_MMSS_MISC, 0x3, 0x3);
> +	regmap_update_bits(regmap, GCC_NPU_MISC, 0x3, 0x3);
> +	regmap_update_bits(regmap, GCC_GPU_MISC, 0x3, 0x3);
> +
> +	ret = qcom_cc_register_rcg_dfs(regmap, gcc_dfs_clocks,
> +					ARRAY_SIZE(gcc_dfs_clocks));
> +	if (ret)
> +		return ret;
> +
> +	return qcom_cc_really_probe(pdev, &gcc_sc7180_desc, regmap);
> +}
> +
> +static struct platform_driver gcc_sc7180_driver = {
> +	.probe = gcc_sc7180_probe,
> +	.driver = {
> +		.name = "gcc-sc7180",
> +		.of_match_table = gcc_sc7180_match_table,
> +	},
> +};
> +
> +static int __init gcc_sc7180_init(void)
> +{
> +	return platform_driver_register(&gcc_sc7180_driver);
> +}
> +subsys_initcall(gcc_sc7180_init);
> +
> +static void __exit gcc_sc7180_exit(void)
> +{
> +	platform_driver_unregister(&gcc_sc7180_driver);
> +}
> +module_exit(gcc_sc7180_exit);
> +
> +MODULE_DESCRIPTION("QTI GCC SC7180 Driver");
> +MODULE_LICENSE("GPL v2");
> --
> Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
> of the Code Aurora Forum, hosted by the  Linux Foundation.
> 

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation