[PATCH v5 5/8] mmc: sdhci-cadence: rename SD4HC symbols for SD6HC groundwork

[Tanmay Kathpalia <tanmay.kathpalia@altera.com>]

SD4HC PHY helpers and the default ops/drv_data are not marked as
version-specific, so it is unclear what is shared versus SD4HC-only
ahead of SD6HC support.

Rename those symbols with a cdns4 prefix to separate the SD4HC paths
from the shared driver core and avoid clashes when SD6HC is added.

Signed-off-by: Tanmay Kathpalia <tanmay.kathpalia@altera.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-cadence.c | 55 +++++++++++++++-----------------
 1 file changed, 26 insertions(+), 29 deletions(-)

diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index 435603c8c00b..8a6ef6d9d1dd 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -78,7 +78,7 @@
  */
 #define SDHCI_CDNS_MAX_TUNING_LOOP	40
 
-struct sdhci_cdns_phy_param {
+struct sdhci_cdns4_phy_param {
 	u8 addr;
 	u8 data;
 };
@@ -91,10 +91,10 @@ struct sdhci_cdns_priv {
 	void (*priv_writel)(struct sdhci_cdns_priv *priv, u32 val, void __iomem *reg);
 	struct reset_control *rst_hw;
 	unsigned int nr_phy_params;
-	struct sdhci_cdns_phy_param phy_params[];
+	struct sdhci_cdns4_phy_param phy_params[];
 };
 
-struct sdhci_cdns_phy_cfg {
+struct sdhci_cdns4_phy_cfg {
 	const char *property;
 	u8 addr;
 };
@@ -104,7 +104,7 @@ struct sdhci_cdns_drv_data {
 	const struct sdhci_pltfm_data pltfm_data;
 };
 
-static const struct sdhci_cdns_phy_cfg sdhci_cdns_phy_cfgs[] = {
+static const struct sdhci_cdns4_phy_cfg sdhci_cdns4_phy_cfgs[] = {
 	{ "cdns,phy-input-delay-sd-highspeed", SDHCI_CDNS_PHY_DLY_SD_HS, },
 	{ "cdns,phy-input-delay-legacy", SDHCI_CDNS_PHY_DLY_SD_DEFAULT, },
 	{ "cdns,phy-input-delay-sd-uhs-sdr12", SDHCI_CDNS_PHY_DLY_UHS_SDR12, },
@@ -124,8 +124,7 @@ static inline void cdns_writel(struct sdhci_cdns_priv *priv, u32 val,
 	writel(val, reg);
 }
 
-static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv,
-				    u8 addr, u8 data)
+static int sdhci_cdns4_write_phy_reg(struct sdhci_cdns_priv *priv, u8 addr, u8 data)
 {
 	void __iomem *reg = priv->hrs_addr + SDHCI_CDNS_HRS04;
 	u32 tmp;
@@ -156,44 +155,42 @@ static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv,
 	return ret;
 }
 
-static unsigned int sdhci_cdns_phy_param_count(struct device_node *np)
+static unsigned int sdhci_cdns4_phy_param_count(struct device_node *np)
 {
 	unsigned int count = 0;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(sdhci_cdns_phy_cfgs); i++)
-		if (of_property_present(np, sdhci_cdns_phy_cfgs[i].property))
+	for (i = 0; i < ARRAY_SIZE(sdhci_cdns4_phy_cfgs); i++)
+		if (of_property_present(np, sdhci_cdns4_phy_cfgs[i].property))
 			count++;
 
 	return count;
 }
 
-static void sdhci_cdns_phy_param_parse(struct device_node *np,
-				       struct sdhci_cdns_priv *priv)
+static void sdhci_cdns4_phy_param_parse(struct device_node *np, struct sdhci_cdns_priv *priv)
 {
-	struct sdhci_cdns_phy_param *p = priv->phy_params;
+	struct sdhci_cdns4_phy_param *p = priv->phy_params;
 	u32 val;
 	int ret, i;
 
-	for (i = 0; i < ARRAY_SIZE(sdhci_cdns_phy_cfgs); i++) {
-		ret = of_property_read_u32(np, sdhci_cdns_phy_cfgs[i].property,
-					   &val);
+	for (i = 0; i < ARRAY_SIZE(sdhci_cdns4_phy_cfgs); i++) {
+		ret = of_property_read_u32(np, sdhci_cdns4_phy_cfgs[i].property, &val);
 		if (ret)
 			continue;
 
-		p->addr = sdhci_cdns_phy_cfgs[i].addr;
+		p->addr = sdhci_cdns4_phy_cfgs[i].addr;
 		p->data = val;
 		p++;
 	}
 }
 
-static int sdhci_cdns_phy_init(struct sdhci_cdns_priv *priv)
+static int sdhci_cdns4_phy_init(struct sdhci_cdns_priv *priv)
 {
 	int ret, i;
 
 	for (i = 0; i < priv->nr_phy_params; i++) {
-		ret = sdhci_cdns_write_phy_reg(priv, priv->phy_params[i].addr,
-					       priv->phy_params[i].data);
+		ret = sdhci_cdns4_write_phy_reg(priv, priv->phy_params[i].addr,
+						priv->phy_params[i].data);
 		if (ret)
 			return ret;
 	}
@@ -470,7 +467,7 @@ static int elba_drv_init(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct sdhci_ops sdhci_cdns_ops = {
+static const struct sdhci_ops sdhci_cdns4_ops = {
 	.set_clock = sdhci_set_clock,
 	.get_timeout_clock = sdhci_cdns_get_timeout_clock,
 	.set_bus_width = sdhci_set_bus_width,
@@ -481,7 +478,7 @@ static const struct sdhci_ops sdhci_cdns_ops = {
 
 static const struct sdhci_cdns_drv_data sdhci_cdns_uniphier_drv_data = {
 	.pltfm_data = {
-		.ops = &sdhci_cdns_ops,
+		.ops = &sdhci_cdns4_ops,
 		.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 	},
 };
@@ -495,14 +492,14 @@ static const struct sdhci_cdns_drv_data sdhci_elba_drv_data = {
 
 static const struct sdhci_cdns_drv_data sdhci_eyeq_drv_data = {
 	.pltfm_data = {
-		.ops = &sdhci_cdns_ops,
+		.ops = &sdhci_cdns4_ops,
 		.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 	},
 };
 
-static const struct sdhci_cdns_drv_data sdhci_cdns_drv_data = {
+static const struct sdhci_cdns_drv_data sdhci_cdns4_drv_data = {
 	.pltfm_data = {
-		.ops = &sdhci_cdns_ops,
+		.ops = &sdhci_cdns4_ops,
 	},
 };
 
@@ -560,9 +557,9 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
 
 	data = of_device_get_match_data(dev);
 	if (!data)
-		data = &sdhci_cdns_drv_data;
+		data = &sdhci_cdns4_drv_data;
 
-	nr_phy_params = sdhci_cdns_phy_param_count(dev->of_node);
+	nr_phy_params = sdhci_cdns4_phy_param_count(dev->of_node);
 	host = sdhci_pltfm_init(pdev, &data->pltfm_data,
 				struct_size(priv, phy_params, nr_phy_params));
 	if (IS_ERR(host))
@@ -593,9 +590,9 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	sdhci_cdns_phy_param_parse(dev->of_node, priv);
+	sdhci_cdns4_phy_param_parse(dev->of_node, priv);
 
-	ret = sdhci_cdns_phy_init(priv);
+	ret = sdhci_cdns4_phy_init(priv);
 	if (ret)
 		return ret;
 
@@ -622,7 +619,7 @@ static int sdhci_cdns_resume(struct device *dev)
 	if (ret)
 		return ret;
 
-	ret = sdhci_cdns_phy_init(priv);
+	ret = sdhci_cdns4_phy_init(priv);
 	if (ret)
 		goto disable_clk;
 
-- 
2.43.7