clk: qcom: drop the SC7180 Modem subsystem clock driver

This driver has never been used in the DT files merged to the kernel.
According to Sibi, it only worked on the pre-production devices. For the
production devices this functionality has been moved to the firmware.

Drop the driver to remove possible confusion.

Cc: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240216-drop-sc7180-mss-v1-1-0a8dc8d71c0c@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 4580edb..8ab08e7 100644 (file)
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -635,16 +635,6 @@ config SC_LPASS_CORECC_7280
          Say Y if you want to use LPASS clocks and power domains of the LPASS
          core clock controller.
 
-config SC_MSS_7180
-       tristate "SC7180 Modem Clock Controller"
-       depends on ARM64 || COMPILE_TEST
-       select SC_GCC_7180
-       help
-         Support for the Modem Subsystem clock controller on Qualcomm
-         Technologies, Inc on SC7180 devices.
-         Say Y if you want to use the Modem branch clocks of the Modem
-         subsystem clock controller to reset the MSS subsystem.
-
 config SC_VIDEOCC_7180
        tristate "SC7180 Video Clock Controller"
        depends on ARM64 || COMPILE_TEST

diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index 1da65ca..dec5b6d 100644 (file)
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -91,7 +91,6 @@ obj-$(CONFIG_SC_LPASSCC_7280) += lpasscc-sc7280.o
 obj-$(CONFIG_SC_LPASSCC_8280XP) += lpasscc-sc8280xp.o
 obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o
 obj-$(CONFIG_SC_LPASS_CORECC_7280) += lpasscorecc-sc7280.o lpassaudiocc-sc7280.o
-obj-$(CONFIG_SC_MSS_7180) += mss-sc7180.o
 obj-$(CONFIG_SC_VIDEOCC_7180) += videocc-sc7180.o
 obj-$(CONFIG_SC_VIDEOCC_7280) += videocc-sc7280.o
 obj-$(CONFIG_SDM_CAMCC_845) += camcc-sdm845.o

diff --git a/drivers/clk/qcom/mss-sc7180.c b/drivers/clk/qcom/mss-sc7180.c
deleted file mode 100644 (file)
index d106bc6..0000000
--- a/drivers/clk/qcom/mss-sc7180.c
+++ /dev/null
@@ -1,140 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2020, The Linux Foundation. All rights reserved.
- */
-
-#include <linux/clk-provider.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <linux/pm_clock.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-
-#include <dt-bindings/clock/qcom,mss-sc7180.h>
-
-#include "clk-regmap.h"
-#include "clk-branch.h"
-#include "common.h"
-
-static struct clk_branch mss_axi_nav_clk = {
-       .halt_reg = 0x20bc,
-       .halt_check = BRANCH_HALT,
-       .clkr = {
-               .enable_reg = 0x20bc,
-               .enable_mask = BIT(0),
-               .hw.init = &(struct clk_init_data){
-                       .name = "mss_axi_nav_clk",
-                       .parent_data = &(const struct clk_parent_data){
-                               .fw_name = "gcc_mss_nav_axi",
-                       },
-                       .num_parents = 1,
-                       .ops = &clk_branch2_ops,
-               },
-       },
-};
-
-static struct clk_branch mss_axi_crypto_clk = {
-       .halt_reg = 0x20cc,
-       .halt_check = BRANCH_HALT,
-       .clkr = {
-               .enable_reg = 0x20cc,
-               .enable_mask = BIT(0),
-               .hw.init = &(struct clk_init_data){
-                       .name = "mss_axi_crypto_clk",
-                       .parent_data = &(const struct clk_parent_data){
-                               .fw_name = "gcc_mss_mfab_axis",
-                       },
-                       .num_parents = 1,
-                       .ops = &clk_branch2_ops,
-               },
-       },
-};
-
-static const struct regmap_config mss_regmap_config = {
-       .reg_bits       = 32,
-       .reg_stride     = 4,
-       .val_bits       = 32,
-       .fast_io        = true,
-       .max_register   = 0x41aa0cc,
-};
-
-static struct clk_regmap *mss_sc7180_clocks[] = {
-       [MSS_AXI_CRYPTO_CLK] = &mss_axi_crypto_clk.clkr,
-       [MSS_AXI_NAV_CLK] = &mss_axi_nav_clk.clkr,
-};
-
-static const struct qcom_cc_desc mss_sc7180_desc = {
-       .config = &mss_regmap_config,
-       .clks = mss_sc7180_clocks,
-       .num_clks = ARRAY_SIZE(mss_sc7180_clocks),
-};
-
-static int mss_sc7180_probe(struct platform_device *pdev)
-{
-       int ret;
-
-       ret = devm_pm_runtime_enable(&pdev->dev);
-       if (ret)
-               return ret;
-
-       ret = devm_pm_clk_create(&pdev->dev);
-       if (ret)
-               return ret;
-
-       ret = pm_clk_add(&pdev->dev, "cfg_ahb");
-       if (ret < 0) {
-               dev_err(&pdev->dev, "failed to acquire iface clock\n");
-               return ret;
-       }
-
-       ret = pm_runtime_resume_and_get(&pdev->dev);
-       if (ret)
-               return ret;
-
-       ret = qcom_cc_probe(pdev, &mss_sc7180_desc);
-       if (ret < 0)
-               goto err_put_rpm;
-
-       pm_runtime_put(&pdev->dev);
-
-       return 0;
-
-err_put_rpm:
-       pm_runtime_put_sync(&pdev->dev);
-
-       return ret;
-}
-
-static const struct dev_pm_ops mss_sc7180_pm_ops = {
-       SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
-};
-
-static const struct of_device_id mss_sc7180_match_table[] = {
-       { .compatible = "qcom,sc7180-mss" },
-       { }
-};
-MODULE_DEVICE_TABLE(of, mss_sc7180_match_table);
-
-static struct platform_driver mss_sc7180_driver = {
-       .probe          = mss_sc7180_probe,
-       .driver         = {
-               .name           = "sc7180-mss",
-               .of_match_table = mss_sc7180_match_table,
-               .pm = &mss_sc7180_pm_ops,
-       },
-};
-
-static int __init mss_sc7180_init(void)
-{
-       return platform_driver_register(&mss_sc7180_driver);
-}
-subsys_initcall(mss_sc7180_init);
-
-static void __exit mss_sc7180_exit(void)
-{
-       platform_driver_unregister(&mss_sc7180_driver);
-}
-module_exit(mss_sc7180_exit);
-
-MODULE_DESCRIPTION("QTI MSS SC7180 Driver");
-MODULE_LICENSE("GPL v2");