mmc: zynq_sdhci: Read power-domains id from DT and use

Firmware calls need node_id which is basically "power-domains" id.
At present static values are used based on the "device_id" property of
dt.
Instead of this, read "power-domains" id from dt and use it. Add a
element called node_id in priv structure and read it from dt. Replace
static node_id with this priv->node_id across the driver.

Since "device_id" is not used anywhere else simply remove it.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Link: https://lore.kernel.org/r/20220930092548.18453-3-ashok.reddy.soma@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>

diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index 3a41944..7dcf6ad 100644 (file)
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -61,7 +61,7 @@ struct arasan_sdhci_plat {
 struct arasan_sdhci_priv {
        struct sdhci_host *host;
        struct arasan_sdhci_clk_data clk_data;
-       u8 deviceid;
+       u32 node_id;
        u8 bank;
        u8 no_1p8;
        struct reset_ctl_bulk resets;
@@ -250,7 +250,6 @@ static int arasan_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
        struct sdhci_host *host;
        struct arasan_sdhci_priv *priv = dev_get_priv(mmc->dev);
        char tuning_loop_counter = SDHCI_TUNING_LOOP_COUNT;
-       u8 node_id = priv->deviceid ? NODE_SD_1 : NODE_SD_0;
 
        dev_dbg(mmc->dev, "%s\n", __func__);
 
@@ -262,7 +261,7 @@ static int arasan_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
 
        mdelay(1);
 
-       arasan_zynqmp_dll_reset(host, node_id);
+       arasan_zynqmp_dll_reset(host, priv->node_id);
 
        sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_INT_ENABLE);
        sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_SIGNAL_ENABLE);
@@ -308,7 +307,7 @@ static int arasan_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
        }
 
        udelay(1);
-       arasan_zynqmp_dll_reset(host, node_id);
+       arasan_zynqmp_dll_reset(host, priv->node_id);
 
        /* Enable only interrupts served by the SD controller */
        sdhci_writel(host, SDHCI_INT_DATA_MASK | SDHCI_INT_CMD_MASK,
@@ -334,7 +333,6 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct sdhci_host *host,
        struct mmc *mmc = (struct mmc *)host->mmc;
        struct udevice *dev = mmc->dev;
        struct arasan_sdhci_priv *priv = dev_get_priv(mmc->dev);
-       u8 node_id = priv->deviceid ? NODE_SD_1 : NODE_SD_0;
        u8 tap_delay, tap_max = 0;
        int timing = mode2timing[mmc->selected_mode];
        int ret;
@@ -374,14 +372,14 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct sdhci_host *host,
        tap_delay &= SDHCI_ARASAN_OTAPDLY_SEL_MASK;
 
        /* Set the Clock Phase */
-       ret = arasan_zynqmp_set_out_tapdelay(node_id, tap_delay);
+       ret = arasan_zynqmp_set_out_tapdelay(priv->node_id, tap_delay);
        if (ret) {
                dev_err(dev, "Error setting output Tap Delay\n");
                return ret;
        }
 
        /* Release DLL Reset */
-       ret = zynqmp_dll_reset(node_id, PM_DLL_RESET_RELEASE);
+       ret = zynqmp_dll_reset(priv->node_id, PM_DLL_RESET_RELEASE);
        if (ret) {
                dev_err(dev, "dll_reset release failed with err: %d\n", ret);
                return ret;
@@ -405,7 +403,6 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
        struct mmc *mmc = (struct mmc *)host->mmc;
        struct udevice *dev = mmc->dev;
        struct arasan_sdhci_priv *priv = dev_get_priv(mmc->dev);
-       u8 node_id = priv->deviceid ? NODE_SD_1 : NODE_SD_0;
        u8 tap_delay, tap_max = 0;
        int timing = mode2timing[mmc->selected_mode];
        int ret;
@@ -419,7 +416,7 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
                return 0;
 
        /* Assert DLL Reset */
-       ret = zynqmp_dll_reset(node_id, PM_DLL_RESET_ASSERT);
+       ret = zynqmp_dll_reset(priv->node_id, PM_DLL_RESET_ASSERT);
        if (ret) {
                dev_err(dev, "dll_reset assert failed with err: %d\n", ret);
                return ret;
@@ -451,7 +448,7 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct sdhci_host *host,
        /* Limit input tap_delay value to 8 bits */
        tap_delay &= SDHCI_ARASAN_ITAPDLY_SEL_MASK;
 
-       ret = arasan_zynqmp_set_in_tapdelay(node_id, tap_delay);
+       ret = arasan_zynqmp_set_in_tapdelay(priv->node_id, tap_delay);
        if (ret) {
                dev_err(dev, "Error setting Input Tap Delay\n");
                return ret;
@@ -717,14 +714,14 @@ static int sdhci_zynqmp_set_dynamic_config(struct arasan_sdhci_priv *priv,
                                           struct udevice *dev)
 {
        int ret;
-       u32 node_id = priv->deviceid ? NODE_SD_1 : NODE_SD_0;
        struct clk clk;
        unsigned long clock, mhz;
 
-       ret = xilinx_pm_request(PM_REQUEST_NODE, node_id, ZYNQMP_PM_CAPABILITY_ACCESS,
-                               ZYNQMP_PM_MAX_QOS, ZYNQMP_PM_REQUEST_ACK_NO, NULL);
+       ret = xilinx_pm_request(PM_REQUEST_NODE, priv->node_id,
+                               ZYNQMP_PM_CAPABILITY_ACCESS, ZYNQMP_PM_MAX_QOS,
+                               ZYNQMP_PM_REQUEST_ACK_NO, NULL);
        if (ret) {
-               dev_err(dev, "Request node failed for %d\n", node_id);
+               dev_err(dev, "Request node failed for %d\n", priv->node_id);
                return ret;
        }
 
@@ -743,13 +740,13 @@ static int sdhci_zynqmp_set_dynamic_config(struct arasan_sdhci_priv *priv,
                return ret;
        }
 
-       ret = zynqmp_pm_set_sd_config(node_id, SD_CONFIG_FIXED, 0);
+       ret = zynqmp_pm_set_sd_config(priv->node_id, SD_CONFIG_FIXED, 0);
        if (ret) {
                dev_err(dev, "SD_CONFIG_FIXED failed\n");
                return ret;
        }
 
-       ret = zynqmp_pm_set_sd_config(node_id, SD_CONFIG_EMMC_SEL,
+       ret = zynqmp_pm_set_sd_config(priv->node_id, SD_CONFIG_EMMC_SEL,
                                      dev_read_bool(dev, "non-removable"));
        if (ret) {
                dev_err(dev, "SD_CONFIG_EMMC_SEL failed\n");
@@ -779,13 +776,13 @@ static int sdhci_zynqmp_set_dynamic_config(struct arasan_sdhci_priv *priv,
        else
                mhz = 25;
 
-       ret = zynqmp_pm_set_sd_config(node_id, SD_CONFIG_BASECLK, mhz);
+       ret = zynqmp_pm_set_sd_config(priv->node_id, SD_CONFIG_BASECLK, mhz);
        if (ret) {
                dev_err(dev, "SD_CONFIG_BASECLK failed\n");
                return ret;
        }
 
-       ret = zynqmp_pm_set_sd_config(node_id, SD_CONFIG_8BIT,
+       ret = zynqmp_pm_set_sd_config(priv->node_id, SD_CONFIG_8BIT,
                                      (dev_read_u32_default(dev, "bus-width", 1) == 8));
        if (ret) {
                dev_err(dev, "SD_CONFIG_8BIT failed\n");
@@ -900,6 +897,7 @@ static int arasan_sdhci_probe(struct udevice *dev)
 static int arasan_sdhci_of_to_plat(struct udevice *dev)
 {
        struct arasan_sdhci_priv *priv = dev_get_priv(dev);
+       u32 pm_info[2];
 
        priv->host = calloc(1, sizeof(struct sdhci_host));
        if (!priv->host)
@@ -916,10 +914,13 @@ static int arasan_sdhci_of_to_plat(struct udevice *dev)
        if (IS_ERR(priv->host->ioaddr))
                return PTR_ERR(priv->host->ioaddr);
 
-       priv->deviceid = dev_read_u32_default(dev, "xlnx,device_id", -1);
        priv->bank = dev_read_u32_default(dev, "xlnx,mio-bank", 0);
        priv->no_1p8 = dev_read_bool(dev, "no-1-8-v");
 
+       priv->node_id = 0;
+       if (!dev_read_u32_array(dev, "power-domains", pm_info, ARRAY_SIZE(pm_info)))
+               priv->node_id = pm_info[1];
+
        return 0;
 }