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path: root/drivers/mmc/host/sdhci-tegra.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-tegra.c')
-rw-r--r--drivers/mmc/host/sdhci-tegra.c123
1 files changed, 47 insertions, 76 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 3695b2e0cbd2..08b06e9a3a21 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -27,8 +27,6 @@
#include <asm/gpio.h>
-#include <linux/platform_data/mmc-sdhci-tegra.h>
-
#include "sdhci-pltfm.h"
/* Tegra SDHOST controller vendor register definitions */
@@ -45,8 +43,11 @@ struct sdhci_tegra_soc_data {
};
struct sdhci_tegra {
- const struct tegra_sdhci_platform_data *plat;
const struct sdhci_tegra_soc_data *soc_data;
+ int cd_gpio;
+ int wp_gpio;
+ int power_gpio;
+ int is_8bit;
};
static u32 tegra_sdhci_readl(struct sdhci_host *host, int reg)
@@ -108,12 +109,11 @@ static unsigned int tegra_sdhci_get_ro(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_tegra *tegra_host = pltfm_host->priv;
- const struct tegra_sdhci_platform_data *plat = tegra_host->plat;
- if (!gpio_is_valid(plat->wp_gpio))
+ if (!gpio_is_valid(tegra_host->wp_gpio))
return -1;
- return gpio_get_value(plat->wp_gpio);
+ return gpio_get_value(tegra_host->wp_gpio);
}
static irqreturn_t carddetect_irq(int irq, void *data)
@@ -143,15 +143,14 @@ static void tegra_sdhci_reset_exit(struct sdhci_host *host, u8 mask)
}
}
-static int tegra_sdhci_8bit(struct sdhci_host *host, int bus_width)
+static int tegra_sdhci_buswidth(struct sdhci_host *host, int bus_width)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_tegra *tegra_host = pltfm_host->priv;
- const struct tegra_sdhci_platform_data *plat = tegra_host->plat;
u32 ctrl;
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
- if (plat->is_8bit && bus_width == MMC_BUS_WIDTH_8) {
+ if (tegra_host->is_8bit && bus_width == MMC_BUS_WIDTH_8) {
ctrl &= ~SDHCI_CTRL_4BITBUS;
ctrl |= SDHCI_CTRL_8BITBUS;
} else {
@@ -170,7 +169,7 @@ static struct sdhci_ops tegra_sdhci_ops = {
.read_l = tegra_sdhci_readl,
.read_w = tegra_sdhci_readw,
.write_l = tegra_sdhci_writel,
- .platform_8bit_width = tegra_sdhci_8bit,
+ .platform_bus_width = tegra_sdhci_buswidth,
.platform_reset_exit = tegra_sdhci_reset_exit,
};
@@ -217,31 +216,19 @@ static const struct of_device_id sdhci_tegra_dt_match[] = {
};
MODULE_DEVICE_TABLE(of, sdhci_dt_ids);
-static struct tegra_sdhci_platform_data *sdhci_tegra_dt_parse_pdata(
- struct platform_device *pdev)
+static void sdhci_tegra_parse_dt(struct device *dev,
+ struct sdhci_tegra *tegra_host)
{
- struct tegra_sdhci_platform_data *plat;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = dev->of_node;
u32 bus_width;
- if (!np)
- return NULL;
-
- plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
- if (!plat) {
- dev_err(&pdev->dev, "Can't allocate platform data\n");
- return NULL;
- }
-
- plat->cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
- plat->wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
- plat->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
+ tegra_host->cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
+ tegra_host->wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
+ tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
if (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
bus_width == 8)
- plat->is_8bit = 1;
-
- return plat;
+ tegra_host->is_8bit = 1;
}
static int sdhci_tegra_probe(struct platform_device *pdev)
@@ -250,7 +237,6 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
const struct sdhci_tegra_soc_data *soc_data;
struct sdhci_host *host;
struct sdhci_pltfm_host *pltfm_host;
- struct tegra_sdhci_platform_data *plat;
struct sdhci_tegra *tegra_host;
struct clk *clk;
int rc;
@@ -263,52 +249,40 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
host = sdhci_pltfm_init(pdev, soc_data->pdata);
if (IS_ERR(host))
return PTR_ERR(host);
-
pltfm_host = sdhci_priv(host);
- plat = pdev->dev.platform_data;
-
- if (plat == NULL)
- plat = sdhci_tegra_dt_parse_pdata(pdev);
-
- if (plat == NULL) {
- dev_err(mmc_dev(host->mmc), "missing platform data\n");
- rc = -ENXIO;
- goto err_no_plat;
- }
-
tegra_host = devm_kzalloc(&pdev->dev, sizeof(*tegra_host), GFP_KERNEL);
if (!tegra_host) {
dev_err(mmc_dev(host->mmc), "failed to allocate tegra_host\n");
rc = -ENOMEM;
- goto err_no_plat;
+ goto err_alloc_tegra_host;
}
-
- tegra_host->plat = plat;
tegra_host->soc_data = soc_data;
-
pltfm_host->priv = tegra_host;
- if (gpio_is_valid(plat->power_gpio)) {
- rc = gpio_request(plat->power_gpio, "sdhci_power");
+ sdhci_tegra_parse_dt(&pdev->dev, tegra_host);
+
+ if (gpio_is_valid(tegra_host->power_gpio)) {
+ rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
if (rc) {
dev_err(mmc_dev(host->mmc),
"failed to allocate power gpio\n");
goto err_power_req;
}
- gpio_direction_output(plat->power_gpio, 1);
+ gpio_direction_output(tegra_host->power_gpio, 1);
}
- if (gpio_is_valid(plat->cd_gpio)) {
- rc = gpio_request(plat->cd_gpio, "sdhci_cd");
+ if (gpio_is_valid(tegra_host->cd_gpio)) {
+ rc = gpio_request(tegra_host->cd_gpio, "sdhci_cd");
if (rc) {
dev_err(mmc_dev(host->mmc),
"failed to allocate cd gpio\n");
goto err_cd_req;
}
- gpio_direction_input(plat->cd_gpio);
+ gpio_direction_input(tegra_host->cd_gpio);
- rc = request_irq(gpio_to_irq(plat->cd_gpio), carddetect_irq,
+ rc = request_irq(gpio_to_irq(tegra_host->cd_gpio),
+ carddetect_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
mmc_hostname(host->mmc), host);
@@ -319,14 +293,14 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
}
- if (gpio_is_valid(plat->wp_gpio)) {
- rc = gpio_request(plat->wp_gpio, "sdhci_wp");
+ if (gpio_is_valid(tegra_host->wp_gpio)) {
+ rc = gpio_request(tegra_host->wp_gpio, "sdhci_wp");
if (rc) {
dev_err(mmc_dev(host->mmc),
"failed to allocate wp gpio\n");
goto err_wp_req;
}
- gpio_direction_input(plat->wp_gpio);
+ gpio_direction_input(tegra_host->wp_gpio);
}
clk = clk_get(mmc_dev(host->mmc), NULL);
@@ -338,9 +312,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
clk_prepare_enable(clk);
pltfm_host->clk = clk;
- host->mmc->pm_caps = plat->pm_flags;
-
- if (plat->is_8bit)
+ if (tegra_host->is_8bit)
host->mmc->caps |= MMC_CAP_8_BIT_DATA;
rc = sdhci_add_host(host);
@@ -353,19 +325,19 @@ err_add_host:
clk_disable_unprepare(pltfm_host->clk);
clk_put(pltfm_host->clk);
err_clk_get:
- if (gpio_is_valid(plat->wp_gpio))
- gpio_free(plat->wp_gpio);
+ if (gpio_is_valid(tegra_host->wp_gpio))
+ gpio_free(tegra_host->wp_gpio);
err_wp_req:
- if (gpio_is_valid(plat->cd_gpio))
- free_irq(gpio_to_irq(plat->cd_gpio), host);
+ if (gpio_is_valid(tegra_host->cd_gpio))
+ free_irq(gpio_to_irq(tegra_host->cd_gpio), host);
err_cd_irq_req:
- if (gpio_is_valid(plat->cd_gpio))
- gpio_free(plat->cd_gpio);
+ if (gpio_is_valid(tegra_host->cd_gpio))
+ gpio_free(tegra_host->cd_gpio);
err_cd_req:
- if (gpio_is_valid(plat->power_gpio))
- gpio_free(plat->power_gpio);
+ if (gpio_is_valid(tegra_host->power_gpio))
+ gpio_free(tegra_host->power_gpio);
err_power_req:
-err_no_plat:
+err_alloc_tegra_host:
sdhci_pltfm_free(pdev);
return rc;
}
@@ -375,21 +347,20 @@ static int sdhci_tegra_remove(struct platform_device *pdev)
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_tegra *tegra_host = pltfm_host->priv;
- const struct tegra_sdhci_platform_data *plat = tegra_host->plat;
int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
sdhci_remove_host(host, dead);
- if (gpio_is_valid(plat->wp_gpio))
- gpio_free(plat->wp_gpio);
+ if (gpio_is_valid(tegra_host->wp_gpio))
+ gpio_free(tegra_host->wp_gpio);
- if (gpio_is_valid(plat->cd_gpio)) {
- free_irq(gpio_to_irq(plat->cd_gpio), host);
- gpio_free(plat->cd_gpio);
+ if (gpio_is_valid(tegra_host->cd_gpio)) {
+ free_irq(gpio_to_irq(tegra_host->cd_gpio), host);
+ gpio_free(tegra_host->cd_gpio);
}
- if (gpio_is_valid(plat->power_gpio))
- gpio_free(plat->power_gpio);
+ if (gpio_is_valid(tegra_host->power_gpio))
+ gpio_free(tegra_host->power_gpio);
clk_disable_unprepare(pltfm_host->clk);
clk_put(pltfm_host->clk);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 17:49:12 +0000