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authorGrazvydas Ignotas <notasas@gmail.com>2009-03-23 18:23:47 -0700
committerTony Lindgren <tony@atomide.com>2009-03-23 18:51:23 -0700
commit07d83cc9c839a5f05c7c1b6d823a8f483bda0441 (patch)
tree463bce2402acd63d3180a41c672b31d8d41c8d01
parent01971f65ff88e3ebe2b6ae42b95d68e26b83718d (diff)
ARM: OMAP3: mmc-twl4030 add MMC3 support, v2
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>
-rw-r--r--arch/arm/mach-omap2/board-omap3pandora.c6
-rw-r--r--arch/arm/mach-omap2/mmc-twl4030.c19
2 files changed, 23 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c
index 7a46a6563a5..6e17180c1a5 100644
--- a/arch/arm/mach-omap2/board-omap3pandora.c
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
@@ -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 */
};
diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c
index c67078db07b..d9fad8dda15 100644
--- a/arch/arm/mach-omap2/mmc-twl4030.c
+++ b/arch/arm/mach-omap2/mmc-twl4030.c
@@ -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;