mmc: sdhci-of-arasan: Add a single data structure to incorporate pdata and soc_ctl_map

Currently, the driver passes platform data as a global structure
and uses the .data of of_device_id to pass the soc_ctl_map. To
make the implementation more flexible add a single data structure
that incorporates both of the above and pass it in the .data of
of_device_id.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index b806b24..c9e3e05 100644 (file)
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -107,6 +107,11 @@ struct sdhci_arasan_data {
 #define SDHCI_ARASAN_QUIRK_CLOCK_UNSTABLE BIT(1)
 };
 
+struct sdhci_arasan_of_data {
+       const struct sdhci_arasan_soc_ctl_map *soc_ctl_map;
+       const struct sdhci_pltfm_data *pdata;
+};
+
 static const struct sdhci_arasan_soc_ctl_map rk3399_soc_ctl_map = {
        .baseclkfreq = { .reg = 0xf000, .width = 8, .shift = 8 },
        .clockmultiplier = { .reg = 0xf02c, .width = 8, .shift = 0},
@@ -307,6 +312,10 @@ static const struct sdhci_pltfm_data sdhci_arasan_pdata = {
                        SDHCI_QUIRK2_STOP_WITH_TC,
 };
 
+static struct sdhci_arasan_of_data sdhci_arasan_data = {
+       .pdata = &sdhci_arasan_pdata,
+};
+
 static u32 sdhci_arasan_cqhci_irq(struct sdhci_host *host, u32 intmask)
 {
        int cmd_error = 0;
@@ -363,6 +372,11 @@ static const struct sdhci_pltfm_data sdhci_arasan_cqe_pdata = {
                        SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN,
 };
 
+static struct sdhci_arasan_of_data sdhci_arasan_rk3399_data = {
+       .soc_ctl_map = &rk3399_soc_ctl_map,
+       .pdata = &sdhci_arasan_cqe_pdata,
+};
+
 #ifdef CONFIG_PM_SLEEP
 /**
  * sdhci_arasan_suspend - Suspend method for the driver
@@ -462,14 +476,21 @@ static const struct of_device_id sdhci_arasan_of_match[] = {
        /* SoC-specific compatible strings w/ soc_ctl_map */
        {
                .compatible = "rockchip,rk3399-sdhci-5.1",
-               .data = &rk3399_soc_ctl_map,
+               .data = &sdhci_arasan_rk3399_data,
        },
-
        /* Generic compatible below here */
-       { .compatible = "arasan,sdhci-8.9a" },
-       { .compatible = "arasan,sdhci-5.1" },
-       { .compatible = "arasan,sdhci-4.9a" },
-
+       {
+               .compatible = "arasan,sdhci-8.9a",
+               .data = &sdhci_arasan_data,
+       },
+       {
+               .compatible = "arasan,sdhci-5.1",
+               .data = &sdhci_arasan_data,
+       },
+       {
+               .compatible = "arasan,sdhci-4.9a",
+               .data = &sdhci_arasan_data,
+       },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sdhci_arasan_of_match);
@@ -707,14 +728,11 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
        struct sdhci_pltfm_host *pltfm_host;
        struct sdhci_arasan_data *sdhci_arasan;
        struct device_node *np = pdev->dev.of_node;
-       const struct sdhci_pltfm_data *pdata;
-
-       if (of_device_is_compatible(pdev->dev.of_node, "arasan,sdhci-5.1"))
-               pdata = &sdhci_arasan_cqe_pdata;
-       else
-               pdata = &sdhci_arasan_pdata;
+       const struct sdhci_arasan_of_data *data;
 
-       host = sdhci_pltfm_init(pdev, pdata, sizeof(*sdhci_arasan));
+       match = of_match_node(sdhci_arasan_of_match, pdev->dev.of_node);
+       data = match->data;
+       host = sdhci_pltfm_init(pdev, data->pdata, sizeof(*sdhci_arasan));
 
        if (IS_ERR(host))
                return PTR_ERR(host);
@@ -723,8 +741,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
        sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
        sdhci_arasan->host = host;
 
-       match = of_match_node(sdhci_arasan_of_match, pdev->dev.of_node);
-       sdhci_arasan->soc_ctl_map = match->data;
+       sdhci_arasan->soc_ctl_map = data->soc_ctl_map;
 
        node = of_parse_phandle(pdev->dev.of_node, "arasan,soc-ctl-syscon", 0);
        if (node) {