From: Russell King Date: Thu, 26 Jan 2012 13:34:21 +0000 (+0000) Subject: ARM: sa1111: provide a generic way to prevent devices from registering X-Git-Tag: upstream/snapshot3+hdmi~7860^2^3~10^2~14 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=07be45f57ebe037977c8033a008e9012617b1915;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git ARM: sa1111: provide a generic way to prevent devices from registering Some platforms don't want certain devices to be registered, because, eg, the interface is not wired. Provide a way for platforms to prevent various devices from being registered via a devid bitmask in the platform data. Acked-by: Nicolas Pitre Signed-off-by: Russell King --- diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 4bdf1bb..17694cf 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -833,11 +833,8 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq) g_sa1111 = sachip; has_devs = ~0; - if (machine_is_assabet() || machine_is_jornada720() || - machine_is_badge4()) - has_devs &= ~SA1111_DEVID_PS2_MSE; - else - has_devs &= ~SA1111_DEVID_SAC; + if (pd) + has_devs &= ~pd->disable_devs; for (i = 0; i < ARRAY_SIZE(sa1111_devices); i++) if (sa1111_devices[i].devid & has_devs) diff --git a/arch/arm/include/asm/hardware/sa1111.h b/arch/arm/include/asm/hardware/sa1111.h index 37ad29d..74afe20 100644 --- a/arch/arm/include/asm/hardware/sa1111.h +++ b/arch/arm/include/asm/hardware/sa1111.h @@ -584,6 +584,7 @@ void sa1111_set_sleep_io(struct sa1111_dev *sadev, unsigned int bits, unsigned i struct sa1111_platform_data { int irq_base; /* base for cascaded on-chip IRQs */ + unsigned disable_devs; void *data; int (*enable)(void *, unsigned); void (*disable)(void *, unsigned); diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index 6ebd276..6bb3f47 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -223,6 +223,7 @@ static struct resource sa1111_resources[] = { static struct sa1111_platform_data sa1111_info = { .irq_base = LUBBOCK_SA1111_IRQ_BASE, + .disable_devs = SA1111_DEVID_SAC, }; static struct platform_device sa1111_device = { diff --git a/arch/arm/mach-sa1100/badge4.c b/arch/arm/mach-sa1100/badge4.c index d8492499..8fb80f0 100644 --- a/arch/arm/mach-sa1100/badge4.c +++ b/arch/arm/mach-sa1100/badge4.c @@ -66,6 +66,7 @@ static void badge4_sa1111_disable(void *data, unsigned devid) static struct sa1111_platform_data sa1111_info = { .irq_base = IRQ_BOARD_END, + .disable_devs = SA1111_DEVID_PS2_MSE, .enable = badge4_sa1111_enable, .disable = badge4_sa1111_disable, }; diff --git a/arch/arm/mach-sa1100/jornada720.c b/arch/arm/mach-sa1100/jornada720.c index ee121d6..dcd6d02 100644 --- a/arch/arm/mach-sa1100/jornada720.c +++ b/arch/arm/mach-sa1100/jornada720.c @@ -211,6 +211,7 @@ static struct resource sa1111_resources[] = { static struct sa1111_platform_data sa1111_info = { .irq_base = IRQ_BOARD_END, + .disable_devs = SA1111_DEVID_PS2_MSE, }; static u64 sa1111_dmamask = 0xffffffffUL; diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index b4fa53a..b40a719 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -242,6 +242,7 @@ static struct resource sa1111_resources[] = { static struct sa1111_platform_data sa1111_info = { .irq_base = IRQ_BOARD_END, + .disable_devs = SA1111_DEVID_PS2_MSE, }; static u64 sa1111_dmamask = 0xffffffffUL;