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sh: use in-soc KEYSC on se7724

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This patch updates the Solution Engine 7724 board code to use
in-SoC KEYSC resources for the keyboard platform device. Using
the in-SoC key scan controller fixes a crash-during-resume issue.

Without this patch the KEYSC hardware block located in the board
specific FPGA is used together with an external IRQ which is
routed through the FPGA and handled by some board specific demux
code. This board specific FPGA interrupt code does not implement
desc->set_wake() so the enable_irq_wake() call in the sh_keysc
driver will fail at suspend-to-ram time and the disable_irq_wake()
will bomb out when resuming.

Changing the platform data to use the in-SoC KEYSC hardware makes
the se7724 board support code less special which is a good thing.
Also, the board specific KEYSC pin setup code selects in-SoC pin
functions already which makes the current FPGA platform device data
look like a typo.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-08-15 02:53:34 +00:00 committed by Paul Mundt
parent f6431732f1
commit 9747e78b30
1 changed files with 5 additions and 4 deletions
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9
arch/sh/boards/mach-se/7724/setup.c
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@ -238,7 +238,7 @@ static struct platform_device ceu1_device = {
},
};
/* KEYSC */
/* KEYSC in SoC (Needs SW33-2 set to ON) */
static struct sh_keysc_info keysc_info = {
.mode = SH_KEYSC_MODE_1,
.scan_timing = 10,
@ -255,12 +255,13 @@ static struct sh_keysc_info keysc_info = {
static struct resource keysc_resources[] = {
[0] = {
.start = 0x1a204000,
.end = 0x1a20400f,
.name = "KEYSC",
.start = 0x044b0000,
.end = 0x044b000f,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ0_KEY,
.start = 79,
.flags = IORESOURCE_IRQ,
},
};