linux-kernel - [PATCH 6/6] atmel-mci: Platform driver MMC slot power control

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Message-Id: <1245200079-6323-6-git-send-email-rob@emanuele.us>
Date:	Tue, 16 Jun 2009 17:54:39 -0700
From:	Rob Emanuele <rob@...nuele.us>
To:	nicolas.ferre@...el.com
Cc:	haavard.skinnemoen@...el.com,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-kernel@...r.kernel.org, Rob Emanuele <rob@...nuele.us>
Subject: [PATCH 6/6] atmel-mci: Platform driver MMC slot power control

Add support to the at91sam9g20ek_2mmc platform (board-sam9g20ek-2slot-mmc.c) and support files for a VCC pin using the atmel-mci driver.

Signed-off-by: Rob Emanuele <rob@...nuele.us>
---
 arch/arm/mach-at91/at91sam9260_devices.c       |    2 ++
 arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index c372f4f..7634632 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -328,6 +328,8 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
 			}
 			if (data->slot[i].wp_pin)
 				at91_set_gpio_input(data->slot[i].wp_pin, 1);
+			if (data->slot[i].vcc_pin)
+				at91_set_gpio_output(data->slot[i].vcc_pin, 0);
 
 			switch(i) {
 			case 0:
diff --git a/arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c b/arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c
index a28e53f..20c6738 100644
--- a/arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c
+++ b/arch/arm/mach-at91/board-sam9g20ek-2slot-mmc.c
@@ -202,11 +202,14 @@ static struct mci_platform_data __initdata ek_mmc_data = {
 		.bus_width	= 4,
 		.detect_pin	= -ENODEV,
 		.wp_pin		= -ENODEV,
+		.vcc_pin	= AT91_PIN_PA30,
+		.vcc_active_low	= 1,
 	},
 	.slot[1] = {
 		.bus_width	= 4,
 		.detect_pin	= -ENODEV,
 		.wp_pin		= -ENODEV,
+		.vcc_pin	= -ENODEV,
 	},
 
 };
-- 
1.6.0.4

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