Hi Chris and Ulf,
Thank you for review. I fixed patch for your review.
---
This patch use mmc_gpio_request_cd function.
Signed-off-by: Beomho Seo <beomho.seo@xxxxxxxxxxx>
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Acked-by: Heiko Stuebner <heiko@xxxxxxxxx>
Tested-by: Heiko Stuebner <heiko@xxxxxxxxx>
---
Changes in v4:
- Remove unused variable "ext_cd_irq".
- Remove mmc_gpio_free_cd function.
Changes in v3:
- Rebased to recent mmc-next branch.
Changes in v2:
- Fix "err_req_cd:".
- Remove mmc_gpio_free_cd() and then, used sdhci_remove_host().
---
drivers/mmc/host/sdhci-s3c.c | 56 +++++++++---------------------------------
1 file changed, 12 insertions(+), 44 deletions(-)
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index c12301e..9c76113 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -27,6 +27,7 @@
#include <linux/pm_runtime.h>
#include <linux/mmc/host.h>
+#include <linux/mmc/slot-gpio.h>
#include "sdhci-s3c-regs.h"
#include "sdhci.h"
@@ -49,7 +50,6 @@ struct sdhci_s3c {
struct resource *ioarea;
struct s3c_sdhci_platdata *pdata;
int cur_clk;
- int ext_cd_irq;
int ext_cd_gpio;
struct clk *clk_io;
@@ -396,44 +396,6 @@ static void sdhci_s3c_notify_change(struct platform_device *dev, int state)
}
}
-static irqreturn_t sdhci_s3c_gpio_card_detect_thread(int irq, void *dev_id)
-{
- struct sdhci_s3c *sc = dev_id;
- int status = gpio_get_value(sc->ext_cd_gpio);
- if (sc->pdata->ext_cd_gpio_invert)
- status = !status;
- sdhci_s3c_notify_change(sc->pdev, status);
- return IRQ_HANDLED;
-}
-
-static void sdhci_s3c_setup_card_detect_gpio(struct sdhci_s3c *sc)
-{
- struct s3c_sdhci_platdata *pdata = sc->pdata;
- struct device *dev = &sc->pdev->dev;
-
- if (devm_gpio_request(dev, pdata->ext_cd_gpio, "SDHCI EXT CD") == 0) {
- sc->ext_cd_gpio = pdata->ext_cd_gpio;
- sc->ext_cd_irq = gpio_to_irq(pdata->ext_cd_gpio);
- if (sc->ext_cd_irq &&
- request_threaded_irq(sc->ext_cd_irq, NULL,
- sdhci_s3c_gpio_card_detect_thread,
- IRQF_TRIGGER_RISING |
- IRQF_TRIGGER_FALLING |
- IRQF_ONESHOT,
- dev_name(dev), sc) == 0) {
- int status = gpio_get_value(sc->ext_cd_gpio);
- if (pdata->ext_cd_gpio_invert)
- status = !status;
- sdhci_s3c_notify_change(sc->pdev, status);
- } else {
- dev_warn(dev, "cannot request irq for card detect\n");
- sc->ext_cd_irq = 0;
- }
- } else {
- dev_err(dev, "cannot request gpio for card detect\n");
- }
-}
-
#ifdef CONFIG_OF
static int sdhci_s3c_parse_dt(struct device *dev,
struct sdhci_host *host, struct s3c_sdhci_platdata *pdata)
@@ -685,8 +647,14 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_init)
pdata->ext_cd_init(&sdhci_s3c_notify_change);
if (pdata->cd_type == S3C_SDHCI_CD_GPIO &&
- gpio_is_valid(pdata->ext_cd_gpio))
- sdhci_s3c_setup_card_detect_gpio(sc);
+ gpio_is_valid(pdata->ext_cd_gpio)) {
+ ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio, 0);
+ if (ret) {
+ dev_err(dev,
+ "failed to reqeust card detect gpio\n");
+ goto err_req_cd;
+ }
+ }
#ifdef CONFIG_PM_RUNTIME
if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL)
@@ -694,6 +662,9 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
#endif
return 0;
+ err_req_cd:
+ sdhci_remove_host(host, 1);
+
err_req_regs:
err_no_busclks:
clk_disable_unprepare(sc->clk_io);
@@ -713,9 +684,6 @@ static int sdhci_s3c_remove(struct platform_device *pdev)
if (pdata->cd_type == S3C_SDHCI_CD_EXTERNAL && pdata->ext_cd_cleanup)
pdata->ext_cd_cleanup(&sdhci_s3c_notify_change);
- if (sc->ext_cd_irq)
- free_irq(sc->ext_cd_irq, sc);
-
#ifdef CONFIG_PM_RUNTIME
if (pdata->cd_type != S3C_SDHCI_CD_INTERNAL)
clk_prepare_enable(sc->clk_io);
--
1.7.9.5
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