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ARM: OMAP3: mmc-twl4030 add MMC3 support, v2

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Device connected to MMC3 is assumed to be self-powered, so
set_power() function is empty. It can't be omited because
host driver requires it.

Array size for hsmmc[] is specified to allocate to allocate
an instance for the third MMC controller.

Also fix a leak which happens if invalid controller id
is passed.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Grazvydas Ignotas 2009-03-23 18:23:47 -07:00 committed by Tony Lindgren
parent 01971f65ff
commit 07d83cc9c8
2 changed files with 23 additions and 2 deletions
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6
arch/arm/mach-omap2/board-omap3pandora.c
View File

@ -55,6 +55,12 @@ static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
.ext_clock = 1,
.transceiver = true,
},
{
.mmc = 3,
.wires = 4,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};

19
arch/arm/mach-omap2/mmc-twl4030.c
View File

@ -62,7 +62,7 @@ static struct twl_mmc_controller {
u8 twl_vmmc_dev_grp;
u8 twl_mmc_dedicated;
char name[HSMMC_NAME_LEN + 1];
} hsmmc[] = {
} hsmmc[OMAP34XX_NR_MMC] = {
{
.twl_vmmc_dev_grp = VMMC1_DEV_GRP,
.twl_mmc_dedicated = VMMC1_DEDICATED,
@ -347,6 +347,16 @@ static int twl_mmc2_set_power(struct device *dev, int slot, int power_on, int vd
return ret;
}
static int twl_mmc3_set_power(struct device *dev, int slot, int power_on,
int vdd)
{
/*
* Assume MMC3 has self-powered device connected, for example on-board
* chip with external power source.
*/
return 0;
}
static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata;
void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers)
@ -415,7 +425,7 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers)
/* NOTE: we assume OMAP's MMC1 and MMC2 use
* the TWL4030's VMMC1 and VMMC2, respectively;
* and that OMAP's MMC3 isn't used.
* and that MMC3 device has it's own power source.
*/
switch (c->mmc) {
@ -430,8 +440,13 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers)
else
mmc->slots[0].ocr_mask = MMC_VDD_165_195;
break;
case 3:
mmc->slots[0].set_power = twl_mmc3_set_power;
mmc->slots[0].ocr_mask = MMC_VDD_165_195;
break;
default:
pr_err("MMC%d configuration not supported!\n", c->mmc);
kfree(mmc);
continue;
}
hsmmc_data[c->mmc - 1] = mmc;