Add new compatible for wilc1000 devices and specify the delay in .data
member of struct of_device_id. WILC1000, WILC3000 devices needs a minimum
of 5ms delay b/w reset and power lines.
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
drivers/mmc/core/pwrseq_sd8787.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/pwrseq_sd8787.c b/drivers/mmc/core/pwrseq_sd8787.c
index 68a826f1c0a1..264e48067af2 100644
--- a/drivers/mmc/core/pwrseq_sd8787.c
+++ b/drivers/mmc/core/pwrseq_sd8787.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/err.h>
@@ -27,6 +28,7 @@ struct mmc_pwrseq_sd8787 {
struct mmc_pwrseq pwrseq;
struct gpio_desc *reset_gpio;
struct gpio_desc *pwrdn_gpio;
+ u32 reset_pwrdwn_delay_ms;
};
#define to_pwrseq_sd8787(p) container_of(p, struct mmc_pwrseq_sd8787, pwrseq)
@@ -37,7 +39,7 @@ static void mmc_pwrseq_sd8787_pre_power_on(struct mmc_host *host)
gpiod_set_value_cansleep(pwrseq->reset_gpio, 1);
- msleep(300);
+ msleep(pwrseq->reset_pwrdwn_delay_ms);
gpiod_set_value_cansleep(pwrseq->pwrdn_gpio, 1);
}
@@ -55,7 +57,8 @@ static const struct mmc_pwrseq_ops mmc_pwrseq_sd8787_ops = {
};
static const struct of_device_id mmc_pwrseq_sd8787_of_match[] = {
- { .compatible = "mmc-pwrseq-sd8787",},
+ { .compatible = "mmc-pwrseq-sd8787", .data = (void *)300 },
+ { .compatible = "mmc-pwrseq-wilc1000", .data = (void *)5 },
{/* sentinel */},
};
MODULE_DEVICE_TABLE(of, mmc_pwrseq_sd8787_of_match);
@@ -64,11 +67,15 @@ static int mmc_pwrseq_sd8787_probe(struct platform_device *pdev)
{
struct mmc_pwrseq_sd8787 *pwrseq;
struct device *dev = &pdev->dev;
+ const struct of_device_id *match;
pwrseq = devm_kzalloc(dev, sizeof(*pwrseq), GFP_KERNEL);
if (!pwrseq)
return -ENOMEM;
+ match = of_match_node(mmc_pwrseq_sd8787_of_match, pdev->dev.of_node);
+ pwrseq->reset_pwrdwn_delay_ms = (u32)match->data;
+
pwrseq->pwrdn_gpio = devm_gpiod_get(dev, "powerdown", GPIOD_OUT_LOW);
if (IS_ERR(pwrseq->pwrdn_gpio))
return PTR_ERR(pwrseq->pwrdn_gpio);
--
2.25.1
