add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/ata/ahci_mvebu.c
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@@ -30,6 +30,7 @@
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 struct ahci_mvebu_plat_data {
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 	int (*plat_config)(struct ahci_host_priv *hpriv);
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+	unsigned int flags;
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 };
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 static void ahci_mvebu_mbus_config(struct ahci_host_priv *hpriv,
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@@ -80,6 +81,19 @@
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 	ahci_mvebu_regret_option(hpriv);
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 	return rc;
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+}
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+
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+static int ahci_mvebu_armada_3700_config(struct ahci_host_priv *hpriv)
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+{
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+	u32 reg;
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+
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+	writel(0, hpriv->mmio + AHCI_VENDOR_SPECIFIC_0_ADDR);
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+
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+	reg = readl(hpriv->mmio + AHCI_VENDOR_SPECIFIC_0_DATA);
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+	reg |= BIT(6);
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+	writel(reg, hpriv->mmio + AHCI_VENDOR_SPECIFIC_0_DATA);
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+
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+	return 0;
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 }
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 /**
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@@ -148,8 +162,7 @@
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 	struct ahci_host_priv *hpriv = host->private_data;
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 	const struct ahci_mvebu_plat_data *pdata = hpriv->plat_data;
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164
 
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-	if (pdata->plat_config)
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-		pdata->plat_config(hpriv);
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+	pdata->plat_config(hpriv);
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166
 
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 	return ahci_platform_resume_host(&pdev->dev);
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 }
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@@ -183,6 +196,7 @@
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 	if (IS_ERR(hpriv))
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 		return PTR_ERR(hpriv);
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+	hpriv->flags |= pdata->flags;
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 	hpriv->plat_data = (void *)pdata;
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201
 
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 	rc = ahci_platform_enable_resources(hpriv);
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@@ -191,12 +205,9 @@
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 	hpriv->stop_engine = ahci_mvebu_stop_engine;
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-	pdata = hpriv->plat_data;
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-	if (pdata->plat_config) {
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-		rc = pdata->plat_config(hpriv);
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-		if (rc)
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-			goto disable_resources;
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-	}
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+	rc = pdata->plat_config(hpriv);
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+	if (rc)
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+		goto disable_resources;
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 	rc = ahci_platform_init_host(pdev, hpriv, &ahci_mvebu_port_info,
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 				     &ahci_platform_sht);
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@@ -215,7 +226,8 @@
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 };
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 static const struct ahci_mvebu_plat_data ahci_mvebu_armada_3700_plat_data = {
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-	.plat_config = NULL,
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+	.plat_config = ahci_mvebu_armada_3700_config,
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+	.flags = AHCI_HFLAG_SUSPEND_PHYS | AHCI_HFLAG_IGN_NOTSUPP_POWER_ON,
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 };
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 static const struct of_device_id ahci_mvebu_of_match[] = {
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@@ -231,11 +243,6 @@
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 };
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 MODULE_DEVICE_TABLE(of, ahci_mvebu_of_match);
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245
 
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-/*
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- * We currently don't provide power management related operations,
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- * since there is no suspend/resume support at the platform level for
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- * Armada 38x for the moment.
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- */
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 static struct platform_driver ahci_mvebu_driver = {
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 	.probe = ahci_mvebu_probe,
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 	.remove = ata_platform_remove_one,