Ohad, -----Original Message----- From: Ohad Ben-Cohen [mailto:ohad@xxxxxxxxxx] Sent: Wednesday, July 21, 2010 12:34 PM To: linux-wireless@xxxxxxxxxxxxxxx; linux-mmc@xxxxxxxxxxxxxxx; linux-omap@xxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux@xxxxxxxxxxxxxxxx; Chikkature Rajashekar, Madhusudhan; Luciano Coelho; akpm@xxxxxxxxxxxxxxxxxxxx; San Mehat; Roger Quadros; Tony Lindgren; Nicolas Pitre; Pandita, Vikram; Kalle Valo; Ohad Ben-Cohen Subject: [PATCH v2 19/20] omap: zoom: keep the MMC3 wl1271 device powered off Keep the MMC3 wl1271 WLAN device powered off until its SDIO function driver requests otherwise. Signed-off-by: Ohad Ben-Cohen <ohad@xxxxxxxxxx> --- arch/arm/mach-omap2/board-zoom-peripherals.c | 1 + arch/arm/mach-omap2/hsmmc.c | 3 +++ arch/arm/mach-omap2/hsmmc.h | 1 + arch/arm/plat-omap/include/plat/mmc.h | 3 +++ drivers/mmc/host/omap_hsmmc.c | 3 +++ 5 files changed, 11 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c index 3230801..3ab9125 100644 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -217,6 +217,7 @@ static struct omap2_hsmmc_info mmc[] __initdata = { .gpio_wp = -EINVAL, .gpio_cd = -EINVAL, .ocr_mask = MMC_VDD_165_195, + .dont_power_card = true, .priv_data = &omap_zoom_wlan_data, }, {} /* Terminator */ diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index f06ddd2..24c4144 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -284,6 +284,9 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) if (c->vcc_aux_disable_is_sleep) mmc->slots[0].vcc_aux_disable_is_sleep = 1; + if (c->dont_power_card) + mmc->slots[0].dont_power_card = 1; + mmc->slots[0].priv_data = c->priv_data; /* NOTE: MMC slots should have a Vcc regulator set up. diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index 434a3ed..e200786 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -23,6 +23,7 @@ struct omap2_hsmmc_info { int ocr_mask; /* temporary HACK */ /* Remux (pad configuation) when powering on/off */ void (*remux)(struct device *dev, int slot, int power_on); + bool dont_power_card;/* keep card power off at boot (default is n)*/ void *priv_data; /* private data to SDIO function driver */ }; diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index 9db1617..d042494 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -140,6 +140,9 @@ struct omap_mmc_platform_data { unsigned int ban_openended:1; + /* keep this card powered off at boot (default is n) */ + unsigned int dont_power_card:1; + /* card private data that should be used by function driver */ void *priv_data; } slots[OMAP_MMC_MAX_SLOTS]; diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 4ac548e..4fb6634 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2157,6 +2157,9 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) if (mmc_slot(host).nonremovable) mmc->caps |= MMC_CAP_NONREMOVABLE; + if (mmc_slot(host).dont_power_card) + mmc->caps |= MMC_CAP_DONT_POWER_CARD; + mmc_set_embedded_data(mmc, mmc_slot(host).priv_data); omap_hsmmc_conf_bus_power(host); -- 1.7.0.4 [Benzy Gabay] small comment: Please make sure that all 127x related changes are not bounded only to MMC3. On OMAP4 WLAN is used on MMC5. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html