On sh7372 the card-detection pin of SDHI0 can also produce interrupts,
when configured as GPIO. Use this feature to power down SDHI0, when no
card is plugged in.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
+#include <linux/pm_runtime.h>
#include <linux/smsc911x.h>
#include <linux/sh_intc.h>
#include <linux/tca6416_keypad.h>
#include <linux/smsc911x.h>
#include <linux/sh_intc.h>
#include <linux/tca6416_keypad.h>
+static irqreturn_t mackerel_sdhi0_gpio_cd(int irq, void *arg)
+{
+ struct device *dev = arg;
+ struct sh_mobile_sdhi_info *info = dev->platform_data;
+ struct tmio_mmc_data *pdata = info->pdata;
+
+ tmio_mmc_cd_wakeup(pdata);
+
+ return IRQ_HANDLED;
+}
+
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
static struct sh_mobile_sdhi_info sdhi0_info = {
.dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
.dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
{
u32 srcr4;
struct clk *clk;
{
u32 srcr4;
struct clk *clk;
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
gpio_request(GPIO_FN_SDHID0_1, NULL);
gpio_request(GPIO_FN_SDHID0_0, NULL);
+ ret = request_irq(evt2irq(0x3340), mackerel_sdhi0_gpio_cd,
+ IRQF_TRIGGER_FALLING, "sdhi0 cd", &sdhi0_device.dev);
+ if (!ret)
+ sdhi0_info.tmio_flags |= TMIO_MMC_HAS_COLD_CD;
+ else
+ pr_err("Cannot get IRQ #%d: %d\n", evt2irq(0x3340), ret);
+
#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
/* enable SDHI1 */
gpio_request(GPIO_FN_SDHICMD1, NULL);
#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
/* enable SDHI1 */
gpio_request(GPIO_FN_SDHICMD1, NULL);