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MFD: mcp-sa11x0: move setup of PPC unit out of mcp-sa11x0.c 

Patch taken from af9081ae64 (ARM: sa1100: Refactor mcp-sa11x0 to use
platform resources.) by Jochen Friedrich <jochen@scram.de>, and
consolidated to use a common function.

Move the setup of the PPC unit out of mcp-sa11x0 into the core SA11x0
code, and call it from each platforms initialization file.  This
centralizes the setup of the PPC unit while not polluting the mcp-sa11x0
driver with these details.

Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2012-01-20 22:24:07 +00:00
parent 7658e7f9a8
commit e36e26a8b7
9 changed files with 19 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-sa1100/assabet.c
View File

@ -231,6 +231,8 @@ static void __init assabet_init(void)
PPDR |= PPC_TXD3 | PPC_TXD1;
PPSR |= PPC_TXD3 | PPC_TXD1;
sa11x0_ppc_configure_mcp();
sa1100fb_lcd_power = assabet_lcd_power;
sa1100fb_backlight_power = assabet_backlight_power;

1
arch/arm/mach-sa1100/cerf.c
View File

@ -128,6 +128,7 @@ static struct mcp_plat_data cerf_mcp_data = {
static void __init cerf_init(void)
{
sa11x0_ppc_configure_mcp();
platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
sa11x0_register_mcp(&cerf_mcp_data);

2
arch/arm/mach-sa1100/collie.c
View File

@ -341,6 +341,8 @@ static void __init collie_init(void)
GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
sa11x0_ppc_configure_mcp();
platform_scoop_config = &collie_pcmcia_config;

10
arch/arm/mach-sa1100/generic.c
View File

@ -240,6 +240,16 @@ static struct platform_device sa11x0mcp_device = {
.resource = sa11x0mcp_resources,
};
void __init sa11x0_ppc_configure_mcp(void)
{
/* Setup the PPC unit for the MCP */
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
}
void sa11x0_register_mcp(struct mcp_plat_data *data)
{
sa11x0_register_device(&sa11x0mcp_device, data);

1
arch/arm/mach-sa1100/generic.h
View File

@ -39,4 +39,5 @@ struct irda_platform_data;
void sa11x0_register_irda(struct irda_platform_data *irda);
struct mcp_plat_data;
void sa11x0_ppc_configure_mcp(void);
void sa11x0_register_mcp(struct mcp_plat_data *data);

1
arch/arm/mach-sa1100/lart.c
View File

@ -28,6 +28,7 @@ static struct mcp_plat_data lart_mcp_data = {
static void __init lart_init(void)
{
sa11x0_ppc_configure_mcp();
sa11x0_register_mcp(&lart_mcp_data);
}

1
arch/arm/mach-sa1100/shannon.c
View File

@ -59,6 +59,7 @@ static struct mcp_plat_data shannon_mcp_data = {
static void __init shannon_init(void)
{
sa11x0_ppc_configure_mcp();
sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
sa11x0_register_mcp(&shannon_mcp_data);
}

1
arch/arm/mach-sa1100/simpad.c
View File

@ -376,6 +376,7 @@ static int __init simpad_init(void)
pm_power_off = simpad_power_off;
sa11x0_ppc_configure_mcp();
sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));
sa11x0_register_mcp(&simpad_mcp_data);

9
drivers/mfd/mcp-sa11x0.c
View File

@ -165,15 +165,6 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
}
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
/*
* Initialise device. Note that we initially
* set the sampling rate to minimum.