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

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On 9/20/2019 9:30 AM, Taniya Das wrote:
Hi Rajendra,

Please pick the patch in the series : https://patchwork.kernel.org/patch/11150013/

ah, right, not sure how I missed the PATCH 1/3 in the series.
Sorry about the noise.


On 9/19/2019 4:38 PM, Rajendra Nayak wrote:
[]..

+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



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