linux-kernel - [PATCH 6/6] Unified AVR32/AT91 MCI Platform Driver Support for a VCC Pin

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Date:	Fri, 12 Jun 2009 18:03:10 -0700
From:	Rob Emanuele <poorarm@...reis.com>
To:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
Cc:	Andrew Victor <avictor.za@...il.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-kernel@...r.kernel.org, drzeus-mmc@...eus.cx
Subject: [PATCH 6/6] Unified AVR32/AT91 MCI Platform Driver Support for a VCC 
	Pin

Add support to the at91sam9g20ek board and support files for a VCC pin
using the atmel-mci driver.

Please read the whole set, try it out, and comment.

Thank you,

Rob Emanuele

---
 arch/arm/mach-at91/at91sam9260_devices.c |    2 ++
 arch/arm/mach-at91/board-sam9g20ek.c     |    4 ++++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c
b/arch/arm/mach-at91/at91sam9260_devices.c
index e7cc46a..fe4467e 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -327,6 +327,8 @@ void __init at91_add_device_mmc(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.c
b/arch/arm/mach-at91/board-sam9g20ek.c
index ca70042..5b7ae06 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -210,8 +210,11 @@ static struct mci_platform_data __initdata ek_mmc_data = {
 	.slot[0] = {
 #if defined(CONFIG_AT91_2MMC)
 		.bus_width	= 4,
+		.vcc_pin	= AT91_PIN_PA30,
+		.vcc_pin_act_low= 1,
 #else
 		.bus_width	= 0,
+		.vcc_pin	= -ENODEV,
 #endif
 		.detect_pin	= -ENODEV,
 		.wp_pin		= -ENODEV,
@@ -220,6 +223,7 @@ static struct mci_platform_data __initdata ek_mmc_data = {
 		.bus_width	= 4,
 		.detect_pin	= -ENODEV,
 		.wp_pin		= -ENODEV,
+		.vcc_pin	= -ENODEV,
 	},

 };
-- 
1.6.0.4
--
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