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019880c08d
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> says: Hi, This series has several bug fixes that I encountered when the ufs-qcom driver was removed and inserted back. But the fixes are applicable to other platform glue drivers as well. This series is tested on Qcom RB5 development board based on SM8250 SoC. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Synopsys G210 Test Chip driver
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*
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* Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
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*
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* Authors: Joao Pinto <jpinto@synopsys.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include <linux/delay.h>
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#include <linux/pm_runtime.h>
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#include "ufshcd-pltfrm.h"
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#include "ufshcd-dwc.h"
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#include "tc-dwc-g210.h"
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/*
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* UFS DWC specific variant operations
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*/
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static struct ufs_hba_variant_ops tc_dwc_g210_20bit_pltfm_hba_vops = {
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.name = "tc-dwc-g210-pltfm",
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.link_startup_notify = ufshcd_dwc_link_startup_notify,
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.phy_initialization = tc_dwc_g210_config_20_bit,
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};
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static struct ufs_hba_variant_ops tc_dwc_g210_40bit_pltfm_hba_vops = {
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.name = "tc-dwc-g210-pltfm",
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.link_startup_notify = ufshcd_dwc_link_startup_notify,
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.phy_initialization = tc_dwc_g210_config_40_bit,
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};
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static const struct of_device_id tc_dwc_g210_pltfm_match[] = {
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{
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.compatible = "snps,g210-tc-6.00-20bit",
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.data = &tc_dwc_g210_20bit_pltfm_hba_vops,
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},
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{
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.compatible = "snps,g210-tc-6.00-40bit",
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.data = &tc_dwc_g210_40bit_pltfm_hba_vops,
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},
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{ },
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};
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MODULE_DEVICE_TABLE(of, tc_dwc_g210_pltfm_match);
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/**
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* tc_dwc_g210_pltfm_probe()
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* @pdev: pointer to platform device structure
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*
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*/
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static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev)
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{
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int err;
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const struct of_device_id *of_id;
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struct ufs_hba_variant_ops *vops;
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struct device *dev = &pdev->dev;
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of_id = of_match_node(tc_dwc_g210_pltfm_match, dev->of_node);
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vops = (struct ufs_hba_variant_ops *)of_id->data;
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/* Perform generic probe */
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err = ufshcd_pltfrm_init(pdev, vops);
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if (err)
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dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
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return err;
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}
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/**
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* tc_dwc_g210_pltfm_remove()
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* @pdev: pointer to platform device structure
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*
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*/
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static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev)
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{
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ufshcd_pltfrm_remove(pdev);
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}
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static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
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SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
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};
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static struct platform_driver tc_dwc_g210_pltfm_driver = {
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.probe = tc_dwc_g210_pltfm_probe,
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.remove = tc_dwc_g210_pltfm_remove,
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.driver = {
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.name = "tc-dwc-g210-pltfm",
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.pm = &tc_dwc_g210_pltfm_pm_ops,
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.of_match_table = of_match_ptr(tc_dwc_g210_pltfm_match),
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},
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};
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module_platform_driver(tc_dwc_g210_pltfm_driver);
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MODULE_ALIAS("platform:tc-dwc-g210-pltfm");
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MODULE_DESCRIPTION("Synopsys Test Chip G210 platform glue driver");
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MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>");
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MODULE_LICENSE("Dual BSD/GPL");
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