kernel/0124-fix-fix-the-issue-of-sd-resuming-fail.patch

From 2615a8943718be9ba547d00a9462b27afcadccc5 Mon Sep 17 00:00:00 2001
From: liangshuang <liangshuang@eswincomputing.com>
Date: Fri, 26 Jul 2024 13:54:16 +0800
Subject: [PATCH 124/219] fix:fix the issue of sd resuming fail.

Changelogs:
1.Fix the issue of resuming fail when no sd card plug in.
2.set tbu power when suspend and resume.
3.When the SD driver is in the runtime suspend state,
  the card dynamic plugging detection function lose efficacy.

Signed-off-by: liangshuang <liangshuang@eswincomputing.com>
---
 drivers/mmc/host/sdhci-of-eswin-sdio.c | 27 +++++++++--
 drivers/mmc/host/sdhci-of-eswin.c      | 64 +++++---------------------
 2 files changed, 34 insertions(+), 57 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-eswin-sdio.c b/drivers/mmc/host/sdhci-of-eswin-sdio.c
index a828298e0e02..bff2897c17c0 100644
--- a/drivers/mmc/host/sdhci-of-eswin-sdio.c
+++ b/drivers/mmc/host/sdhci-of-eswin-sdio.c
@@ -356,9 +356,17 @@ static int eswin_sdhci_sdio_suspend(struct device *dev)
 		sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
-	ret = sdhci_pltfm_suspend(dev);
+	pm_runtime_get_sync(dev);
+
+	if (host->tuning_mode != SDHCI_TUNING_MODE_3)
+		mmc_retune_needed(host->mmc);
+
+	ret = sdhci_suspend_host(host);
 	if (ret)
 		return ret;
+
+	win2030_tbu_power(dev, false);
+	clk_disable_unprepare(pltfm_host->clk);
 	clk_disable_unprepare(eswin_sdhci_sdio->clk_ahb);
 
 	return 0;
@@ -380,20 +388,29 @@ static int eswin_sdhci_sdio_resume(struct device *dev)
 		sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
+	pm_runtime_put_sync(dev);
 	ret = clk_prepare_enable(eswin_sdhci_sdio->clk_ahb);
 	if (ret) {
-		dev_err(dev, "can't enable clk_ahb\n");
+		dev_err(dev, "can't enable clk_ahb.\n");
 		return ret;
 	}
+	ret = clk_prepare_enable(pltfm_host->clk);
+	if (ret) {
+		dev_err(dev, "can't enable mainck.\n");
+		goto clk_ahb_disable;
+	}
+	win2030_tbu_power(dev, true);
 
-	ret = sdhci_pltfm_resume(dev);
+	ret = sdhci_resume_host(host);
 	if (ret) {
-		dev_err(dev, "pltfm resume failed!\n");
+		dev_err(dev, "runtime resume failed!\n");
 		goto clk_disable;
 	}
 
 	return 0;
 clk_disable:
+	clk_disable_unprepare(pltfm_host->clk);
+clk_ahb_disable:
 	clk_disable_unprepare(eswin_sdhci_sdio->clk_ahb);
 
 	return ret;
@@ -413,6 +430,7 @@ static int eswin_sdhci_sdio_runtime_suspend(struct device *dev)
 	if (host->tuning_mode != SDHCI_TUNING_MODE_3)
 		mmc_retune_needed(host->mmc);
 
+	win2030_tbu_power(dev, false);
 	clk_disable_unprepare(pltfm_host->clk);
 	clk_disable_unprepare(eswin_sdhci_sdio->clk_ahb);
 
@@ -437,6 +455,7 @@ static int eswin_sdhci_sdio_runtime_resume(struct device *dev)
 		dev_err(dev, "can't enable mainck\n");
 		goto clk_ahb_disable;
 	}
+	win2030_tbu_power(dev, true);
 
 	ret = sdhci_runtime_resume_host(host, 0);
 	if (ret) {
diff --git a/drivers/mmc/host/sdhci-of-eswin.c b/drivers/mmc/host/sdhci-of-eswin.c
index 3e2912aca476..66e9e02bfb26 100644
--- a/drivers/mmc/host/sdhci-of-eswin.c
+++ b/drivers/mmc/host/sdhci-of-eswin.c
@@ -271,7 +271,7 @@ static int eswin_sdhci_delay_tuning(struct sdhci_host *host, u32 opcode)
 	}
 
 	delay = (delay_min + delay_max) / 2;
-	pr_info("%s: set delay:0x%x\n", mmc_hostname(host->mmc), delay);
+	pr_debug("%s: set delay:0x%x\n", mmc_hostname(host->mmc), delay);
 	eswin_sdhci_disable_card_clk(host);
 	eswin_sdhci_config_phy_delay(host, delay);
 	eswin_sdhci_enable_card_clk(host);
@@ -318,7 +318,7 @@ static int eswin_sdhci_phase_code_tuning(struct sdhci_host *host, u32 opcode)
 	}
 
 	phase_code = (code_min + code_max) / 2;
-	pr_info("%s: set phase_code:0x%x\n", mmc_hostname(host->mmc), phase_code);
+	pr_debug("%s: set phase_code:0x%x\n", mmc_hostname(host->mmc), phase_code);
 
 	eswin_sdhci_disable_card_clk(host);
 	sdhci_writew(host, phase_code, VENDOR_AT_SATA_R);
@@ -476,9 +476,15 @@ static int eswin_sdhci_suspend(struct device *dev)
 	struct eswin_sdhci_data *eswin_sdhci = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
-	ret = sdhci_pltfm_suspend(dev);
+	if (host->tuning_mode != SDHCI_TUNING_MODE_3)
+		mmc_retune_needed(host->mmc);
+
+	ret = sdhci_suspend_host(host);
 	if (ret)
 		return ret;
+
+	win2030_tbu_power(dev, false);
+	clk_disable_unprepare(pltfm_host->clk);
 	clk_disable_unprepare(eswin_sdhci->clk_ahb);
 
 	return 0;
@@ -504,60 +510,14 @@ static int eswin_sdhci_resume(struct device *dev)
 		dev_err(dev, "can't enable clk_ahb\n");
 		return ret;
 	}
-
-	ret = sdhci_pltfm_resume(dev);
-	if (ret) {
-		dev_err(dev, "pltfm resume failed!\n");
-		goto clk_disable;
-	}
-
-	return 0;
-clk_disable:
-	clk_disable_unprepare(eswin_sdhci->clk_ahb);
-
-	return ret;
-}
-
-static int eswin_sdhci_runtime_suspend(struct device *dev)
-{
-	struct sdhci_host *host = dev_get_drvdata(dev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct eswin_sdhci_data *eswin_sdhci = sdhci_pltfm_priv(pltfm_host);
-	int ret;
-
-	ret = sdhci_runtime_suspend_host(host);
-	if (ret)
-		return ret;
-
-	if (host->tuning_mode != SDHCI_TUNING_MODE_3)
-		mmc_retune_needed(host->mmc);
-
-	clk_disable_unprepare(pltfm_host->clk);
-	clk_disable_unprepare(eswin_sdhci->clk_ahb);
-
-	return 0;
-}
-
-static int eswin_sdhci_runtime_resume(struct device *dev)
-{
-	struct sdhci_host *host = dev_get_drvdata(dev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct eswin_sdhci_data *eswin_sdhci = sdhci_pltfm_priv(pltfm_host);
-	int ret;
-
-	ret = clk_prepare_enable(eswin_sdhci->clk_ahb);
-	if (ret) {
-		dev_err(dev, "can't enable clk_ahb\n");
-		return ret;
-	}
-
 	ret = clk_prepare_enable(pltfm_host->clk);
 	if (ret) {
 		dev_err(dev, "can't enable mainck\n");
 		goto clk_ahb_disable;
 	}
+	win2030_tbu_power(dev, true);
 
-	ret = sdhci_runtime_resume_host(host, 0);
+	ret = sdhci_resume_host(host);
 	if (ret) {
 		dev_err(dev, "runtime resume failed!\n");
 		goto clk_disable;
@@ -1110,8 +1070,6 @@ static void eswin_sdhci_shutdown(struct platform_device *pdev)
 
 static const struct dev_pm_ops eswin_sdhci_pmops = {
 	SET_SYSTEM_SLEEP_PM_OPS(eswin_sdhci_suspend, eswin_sdhci_resume)
-	SET_RUNTIME_PM_OPS(eswin_sdhci_runtime_suspend,
-			   eswin_sdhci_runtime_resume, NULL)
 };
 
 static struct platform_driver eswin_sdhci_driver =
-- 
2.47.0