mmc: sdhci-xenon: use match data for controllers variants

As a part of the ACPI support preparation resign from checking
compatible strings in the driver. Instead of that use a new
enum and assign the values to match data accordingly.

Signed-off-by: Marcin Wojtas <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/sdhci-xenon-phy.c

···
 				struct device_node *np,
 				struct xenon_emmc_phy_params *params)
 {
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct xenon_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	int ret = 0;
 	const char *name;
 	struct resource iomem;
 
-	if (of_device_is_compatible(np, "marvell,armada-3700-sdhci"))
+	if (priv->hw_version == XENON_A3700)
 		params->pad_ctrl.set_soc_pad = armada_3700_soc_pad_voltage_set;
 	else
 		return 0;

drivers/mmc/host/sdhci-xenon.c

···
 	u32 tuning_count;
 
 	/* Disable HS200 on Armada AP806 */
-	if (of_device_is_compatible(np, "marvell,armada-ap806-sdhci"))
+	if (priv->hw_version == XENON_AP806)
 		host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
 
 	sdhc_id = 0x0;
···
 
 	pltfm_host = sdhci_priv(host);
 	priv = sdhci_pltfm_priv(pltfm_host);
+
+	priv->hw_version = (unsigned long)device_get_match_data(&pdev->dev);
 
 	/*
 	 * Link Xenon specific mmc_host_ops function,
···
 };
 
 static const struct of_device_id sdhci_xenon_dt_ids[] = {
-	{ .compatible = "marvell,armada-ap806-sdhci",},
-	{ .compatible = "marvell,armada-cp110-sdhci",},
-	{ .compatible = "marvell,armada-3700-sdhci",},
+	{ .compatible = "marvell,armada-ap806-sdhci", .data = (void *)XENON_AP806},
+	{ .compatible = "marvell,armada-cp110-sdhci", .data =  (void *)XENON_CP110},
+	{ .compatible = "marvell,armada-3700-sdhci", .data =  (void *)XENON_A3700},
 	{}
 };
 MODULE_DEVICE_TABLE(of, sdhci_xenon_dt_ids);

drivers/mmc/host/sdhci-xenon.h

···
 #define XENON_CTRL_HS200			0x5
 #define XENON_CTRL_HS400			0x6
 
+enum xenon_variant {
+	XENON_A3700,
+	XENON_AP806,
+	XENON_AP807,
+	XENON_CP110
+};
+
 struct xenon_priv {
 	unsigned char	tuning_count;
 	/* idx of SDHC */
···
 	void		*phy_params;
 	struct xenon_emmc_phy_regs *emmc_phy_regs;
 	bool restore_needed;
+	enum xenon_variant hw_version;
 };
 
 int xenon_phy_adj(struct sdhci_host *host, struct mmc_ios *ios);