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yaml
---
r: 358638
b: refs/heads/master
c: fbe5fdd
h: refs/heads/master
v: v3
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Shawn Guo authored and Chris Ball committed Feb 11, 2013
1 parent c6f8cc5 commit 83a80a9
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Showing 2 changed files with 17 additions and 41 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 164cda5236acf833f22a3edafdf8b95a7de7b402
refs/heads/master: fbe5fdd12c4cdae61a8c3d371e564371177da86e
56 changes: 16 additions & 40 deletions trunk/drivers/mmc/host/sdhci-esdhc-imx.c
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/slot-gpio.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
Expand Down Expand Up @@ -147,17 +148,16 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
struct pltfm_imx_data *imx_data = pltfm_host->priv;
struct esdhc_platform_data *boarddata = &imx_data->boarddata;

/* fake CARD_PRESENT flag */
u32 val = readl(host->ioaddr + reg);

if (unlikely((reg == SDHCI_PRESENT_STATE)
&& gpio_is_valid(boarddata->cd_gpio))) {
if (gpio_get_value(boarddata->cd_gpio))
/* no card, if a valid gpio says so... */
if (unlikely(reg == SDHCI_PRESENT_STATE)) {
/*
* After SDHCI core gets improved to never query
* SDHCI_CARD_PRESENT state in GPIO case, we can
* remove this check.
*/
if (boarddata->cd_type == ESDHC_CD_GPIO)
val &= ~SDHCI_CARD_PRESENT;
else
/* ... in all other cases assume card is present */
val |= SDHCI_CARD_PRESENT;
}

if (unlikely(reg == SDHCI_CAPABILITIES)) {
Expand Down Expand Up @@ -362,8 +362,7 @@ static unsigned int esdhc_pltfm_get_ro(struct sdhci_host *host)

switch (boarddata->wp_type) {
case ESDHC_WP_GPIO:
if (gpio_is_valid(boarddata->wp_gpio))
return gpio_get_value(boarddata->wp_gpio);
return mmc_gpio_get_ro(host->mmc);
case ESDHC_WP_CONTROLLER:
return !(readl(host->ioaddr + SDHCI_PRESENT_STATE) &
SDHCI_WRITE_PROTECT);
Expand Down Expand Up @@ -394,14 +393,6 @@ static struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
.ops = &sdhci_esdhc_ops,
};

static irqreturn_t cd_irq(int irq, void *data)
{
struct sdhci_host *sdhost = (struct sdhci_host *)data;

tasklet_schedule(&sdhost->card_tasklet);
return IRQ_HANDLED;
};

#ifdef CONFIG_OF
static int
sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
Expand Down Expand Up @@ -527,37 +518,22 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)

/* write_protect */
if (boarddata->wp_type == ESDHC_WP_GPIO) {
err = devm_gpio_request_one(&pdev->dev, boarddata->wp_gpio,
GPIOF_IN, "ESDHC_WP");
err = mmc_gpio_request_ro(host->mmc, boarddata->wp_gpio);
if (err) {
dev_warn(mmc_dev(host->mmc),
"no write-protect pin available!\n");
boarddata->wp_gpio = -EINVAL;
dev_err(mmc_dev(host->mmc),
"failed to request write-protect gpio!\n");
goto disable_clk;
}
} else {
boarddata->wp_gpio = -EINVAL;
host->mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
}

/* card_detect */
if (boarddata->cd_type != ESDHC_CD_GPIO)
boarddata->cd_gpio = -EINVAL;

switch (boarddata->cd_type) {
case ESDHC_CD_GPIO:
err = devm_gpio_request_one(&pdev->dev, boarddata->cd_gpio,
GPIOF_IN, "ESDHC_CD");
err = mmc_gpio_request_cd(host->mmc, boarddata->cd_gpio);
if (err) {
dev_err(mmc_dev(host->mmc),
"no card-detect pin available!\n");
goto disable_clk;
}

err = devm_request_irq(&pdev->dev,
gpio_to_irq(boarddata->cd_gpio), cd_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
mmc_hostname(host->mmc), host);
if (err) {
dev_err(mmc_dev(host->mmc), "request irq error\n");
"failed to request card-detect gpio!\n");
goto disable_clk;
}
/* fall through */
Expand Down

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