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mmc: starfive: Unify the MMC code on evb/vf2/devkits

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Unify the MMC code on evb/vf2/devkits to resolve conflicts when merging
the code.

Signed-off-by: William Qiu <william.qiu@starfivetech.com>
This commit is contained in:
William Qiu 2023-08-02 16:14:50 +08:00 • committed by Justin Hammond
parent 31bb215e65
commit eaf4e7d161
1 changed files with 46 additions and 8 deletions
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54
drivers/mmc/host/dw_mmc-starfive.c
View file

@ -15,6 +15,8 @@
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "dw_mmc.h"
@ -119,12 +121,14 @@ static int dw_mci_starfive_switch_voltage(struct mmc_host *mmc, struct mmc_ios *
struct dw_mci *host = slot->host;
u32 ret;
if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330)
ret = gpio_direction_output(25, 0);
else if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_180)
ret = gpio_direction_output(25, 1);
if (ret)
return ret;
if (device_property_read_bool(host->dev, "board-is-evb")) {
if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330)
ret = gpio_direction_output(25, 0);
else if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_180)
ret = gpio_direction_output(25, 1);
if (ret)
return ret;
}
if (!IS_ERR(mmc->supply.vqmmc)) {
ret = mmc_regulator_set_vqmmc(mmc, ios);
@ -134,8 +138,6 @@ static int dw_mci_starfive_switch_voltage(struct mmc_host *mmc, struct mmc_ios *
}
}
/* We should delay 20ms wait for timing setting finished. */
mdelay(20);
return 0;
}
@ -144,6 +146,7 @@ static const struct dw_mci_drv_data starfive_data = {
.num_caps = ARRAY_SIZE(dw_mci_starfive_caps),
.set_ios = dw_mci_starfive_set_ios,
.execute_tuning = dw_mci_starfive_execute_tuning,
.switch_voltage = dw_mci_starfive_switch_voltage,
};
static const struct of_device_id dw_mci_starfive_match[] = {
@ -157,11 +160,46 @@ static int dw_mci_starfive_probe(struct platform_device *pdev)
{
const struct dw_mci_drv_data *drv_data;
const struct of_device_id *match;
struct gpio_desc *power_gpio;
int gpio_wl_reg_on = -1;
int ret;
match = of_match_node(dw_mci_starfive_match, pdev->dev.of_node);
drv_data = match->data;
if (device_property_read_bool(&pdev->dev, "board-is-devkits")) {
power_gpio = devm_gpiod_get_optional(&pdev->dev, "power", GPIOD_OUT_LOW);
if (IS_ERR(power_gpio)) {
dev_err(&pdev->dev, "Failed to get power-gpio\n");
return -EINVAL;
}
gpiod_set_value_cansleep(power_gpio, 1);
}
gpio_wl_reg_on = of_get_named_gpio(pdev->dev.of_node, "gpio_wl_reg_on", 0);
if (gpio_wl_reg_on >= 0) {
ret = gpio_request(gpio_wl_reg_on, "WL_REG_ON");
if (ret < 0) {
dev_err(&pdev->dev, "gpio_request(%d) for WL_REG_ON failed %d\n",
gpio_wl_reg_on, ret);
gpio_wl_reg_on = -1;
return -EINVAL;
}
ret = gpio_direction_output(gpio_wl_reg_on, 0);
if (ret) {
dev_err(&pdev->dev, "WL_REG_ON didn't output high\n");
return -EIO;
}
mdelay(10);
ret = gpio_direction_output(gpio_wl_reg_on, 1);
if (ret) {
dev_err(&pdev->dev, "WL_REG_ON didn't output high\n");
return -EIO;
}
mdelay(10);
}
pm_runtime_get_noresume(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);