* [PATCH v3 3/9] ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen
@ 2010-05-18 11:44 Kukjin Kim
2010-05-19 4:42 ` Ben Dooks
0 siblings, 1 reply; 2+ messages in thread
From: Kukjin Kim @ 2010-05-18 11:44 UTC (permalink / raw)
To: linux-arm-kernel
From: Naveen Krishna <ch.naveen@samsung.com>
This patch implements cfg_gpio function for Samsung touchscreen.
And also modifies the H1940 machine respectively.
Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
arch/arm/mach-s3c2410/Kconfig | 1 +
arch/arm/mach-s3c2410/mach-h1940.c | 1 +
arch/arm/plat-s3c24xx/Kconfig | 6 +++++
arch/arm/plat-s3c24xx/Makefile | 1 +
arch/arm/plat-s3c24xx/setup-ts.c | 34 +++++++++++++++++++++++++++++++
arch/arm/plat-samsung/include/plat/ts.h | 4 +++
6 files changed, 47 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/plat-s3c24xx/setup-ts.c
diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
index 5547318..6b9665c 100644
--- a/arch/arm/mach-s3c2410/Kconfig
+++ b/arch/arm/mach-s3c2410/Kconfig
@@ -76,6 +76,7 @@ config ARCH_H1940
select PM_H1940 if PM
select S3C_DEV_USB_HOST
select S3C_DEV_NAND
+ select S3C2410_SETUP_TS
help
Say Y here if you are using the HP IPAQ H1940
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 75e3ffb..e8583ec 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -145,6 +145,7 @@ static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
.delay = 10000,
.presc = 49,
.oversampling_shift = 2,
+ .cfg_gpio = s3c24xx_ts_cfg_gpio,
};
/**
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig
index 6e93ef8..d29c08c 100644
--- a/arch/arm/plat-s3c24xx/Kconfig
+++ b/arch/arm/plat-s3c24xx/Kconfig
@@ -9,6 +9,7 @@ config PLAT_S3C24XX
select NO_IOPORT
select ARCH_REQUIRE_GPIOLIB
select S3C_DEVICE_NAND
+ select S3C2410_SETUP_TS if TOUCHSCREEN_S3C2410
help
Base platform code for any Samsung S3C24XX device
@@ -157,4 +158,9 @@ config S3C24XX_SIMTEC_AUDIO
help
Add audio devices for common Simtec S3C24XX boards
+config S3C2410_SETUP_TS
+ bool
+ help
+ Compile in platform device definition for Samsung TouchScreen.
+
endif
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index c2237c4..6dd4e0a 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -37,6 +37,7 @@ obj-$(CONFIG_S3C2410_CPUFREQ_UTILS) += s3c2410-cpufreq-utils.o
# device specific setup and/or initialisation
obj-$(CONFIG_ARCH_S3C2410) += setup-i2c.o
+obj-$(CONFIG_S3C2410_SETUP_TS) += setup-ts.o
# SPI gpio central GPIO functions
diff --git a/arch/arm/plat-s3c24xx/setup-ts.c b/arch/arm/plat-s3c24xx/setup-ts.c
new file mode 100644
index 0000000..ed26386
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/setup-ts.c
@@ -0,0 +1,34 @@
+/* linux/arch/arm/plat-s3c24xx/setup-ts.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Based on S3C24XX setup for i2c device
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+
+struct platform_device; /* don't need the contents */
+
+#include <mach/hardware.h>
+#include <mach/regs-gpio.h>
+
+/**
+ * s3c24xx_ts_cfg_gpio - configure gpio for s3c2410 systems
+ *
+ * Configure the GPIO for the S3C2410 system, where we have external FETs
+ * connected to the device (later systems such as the S3C2440 integrate
+ * these into the device).
+ */
+void s3c24xx_ts_cfg_gpio(struct platform_device *dev)
+{
+ s3c2410_gpio_cfgpin(S3C2410_GPG(12), S3C2410_GPG12_XMON);
+ s3c2410_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPG13_nXPON);
+ s3c2410_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPG14_YMON);
+ s3c2410_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPG15_nYPON);
+}
diff --git a/arch/arm/plat-samsung/include/plat/ts.h b/arch/arm/plat-samsung/include/plat/ts.h
index 28a80ad..f53cbc7 100644
--- a/arch/arm/plat-samsung/include/plat/ts.h
+++ b/arch/arm/plat-samsung/include/plat/ts.h
@@ -14,8 +14,12 @@ struct s3c2410_ts_mach_info {
int delay;
int presc;
int oversampling_shift;
+ void (*cfg_gpio)(struct platform_device *dev);
};
extern void s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *);
+/* defined by architecture to configure gpio */
+extern void s3c24xx_ts_cfg_gpio(struct platform_device *dev);
+
#endif /* __ASM_ARM_TS_H */
--
1.6.2.5
^ permalink raw reply related [flat|nested] 2+ messages in thread* [PATCH v3 3/9] ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen
2010-05-18 11:44 [PATCH v3 3/9] ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen Kukjin Kim
@ 2010-05-19 4:42 ` Ben Dooks
0 siblings, 0 replies; 2+ messages in thread
From: Ben Dooks @ 2010-05-19 4:42 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, May 18, 2010 at 08:44:27PM +0900, Kukjin Kim wrote:
> From: Naveen Krishna <ch.naveen@samsung.com>
>
> This patch implements cfg_gpio function for Samsung touchscreen.
> And also modifies the H1940 machine respectively.
>
> Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com>
> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
> ---
> arch/arm/mach-s3c2410/Kconfig | 1 +
> arch/arm/mach-s3c2410/mach-h1940.c | 1 +
> arch/arm/plat-s3c24xx/Kconfig | 6 +++++
> arch/arm/plat-s3c24xx/Makefile | 1 +
> arch/arm/plat-s3c24xx/setup-ts.c | 34 +++++++++++++++++++++++++++++++
> arch/arm/plat-samsung/include/plat/ts.h | 4 +++
> 6 files changed, 47 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/plat-s3c24xx/setup-ts.c
>
> diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
> index 5547318..6b9665c 100644
> --- a/arch/arm/mach-s3c2410/Kconfig
> +++ b/arch/arm/mach-s3c2410/Kconfig
> @@ -76,6 +76,7 @@ config ARCH_H1940
> select PM_H1940 if PM
> select S3C_DEV_USB_HOST
> select S3C_DEV_NAND
> + select S3C2410_SETUP_TS
> help
> Say Y here if you are using the HP IPAQ H1940
>
> diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
> index 75e3ffb..e8583ec 100644
> --- a/arch/arm/mach-s3c2410/mach-h1940.c
> +++ b/arch/arm/mach-s3c2410/mach-h1940.c
> @@ -145,6 +145,7 @@ static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
> .delay = 10000,
> .presc = 49,
> .oversampling_shift = 2,
> + .cfg_gpio = s3c24xx_ts_cfg_gpio,
> };
>
> /**
> diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig
> index 6e93ef8..d29c08c 100644
> --- a/arch/arm/plat-s3c24xx/Kconfig
> +++ b/arch/arm/plat-s3c24xx/Kconfig
> @@ -9,6 +9,7 @@ config PLAT_S3C24XX
> select NO_IOPORT
> select ARCH_REQUIRE_GPIOLIB
> select S3C_DEVICE_NAND
> + select S3C2410_SETUP_TS if TOUCHSCREEN_S3C2410
this isn't needed, the only user is currently the h1940 and it is already
selecting the relevant setup code.
> help
> Base platform code for any Samsung S3C24XX device
>
> @@ -157,4 +158,9 @@ config S3C24XX_SIMTEC_AUDIO
> help
> Add audio devices for common Simtec S3C24XX boards
>
> +config S3C2410_SETUP_TS
> + bool
> + help
> + Compile in platform device definition for Samsung TouchScreen.
> +
> endif
> diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
> index c2237c4..6dd4e0a 100644
> --- a/arch/arm/plat-s3c24xx/Makefile
> +++ b/arch/arm/plat-s3c24xx/Makefile
> @@ -37,6 +37,7 @@ obj-$(CONFIG_S3C2410_CPUFREQ_UTILS) += s3c2410-cpufreq-utils.o
>
> # device specific setup and/or initialisation
> obj-$(CONFIG_ARCH_S3C2410) += setup-i2c.o
> +obj-$(CONFIG_S3C2410_SETUP_TS) += setup-ts.o
>
> # SPI gpio central GPIO functions
>
> diff --git a/arch/arm/plat-s3c24xx/setup-ts.c b/arch/arm/plat-s3c24xx/setup-ts.c
> new file mode 100644
> index 0000000..ed26386
> --- /dev/null
> +++ b/arch/arm/plat-s3c24xx/setup-ts.c
> @@ -0,0 +1,34 @@
> +/* linux/arch/arm/plat-s3c24xx/setup-ts.c
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + * http://www.samsung.com/
> + *
> + * Based on S3C24XX setup for i2c device
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/gpio.h>
> +
> +struct platform_device; /* don't need the contents */
> +
> +#include <mach/hardware.h>
> +#include <mach/regs-gpio.h>
> +
> +/**
> + * s3c24xx_ts_cfg_gpio - configure gpio for s3c2410 systems
> + *
> + * Configure the GPIO for the S3C2410 system, where we have external FETs
> + * connected to the device (later systems such as the S3C2440 integrate
> + * these into the device).
> + */
> +void s3c24xx_ts_cfg_gpio(struct platform_device *dev)
> +{
> + s3c2410_gpio_cfgpin(S3C2410_GPG(12), S3C2410_GPG12_XMON);
> + s3c2410_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPG13_nXPON);
> + s3c2410_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPG14_YMON);
> + s3c2410_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPG15_nYPON);
> +}
> diff --git a/arch/arm/plat-samsung/include/plat/ts.h b/arch/arm/plat-samsung/include/plat/ts.h
> index 28a80ad..f53cbc7 100644
> --- a/arch/arm/plat-samsung/include/plat/ts.h
> +++ b/arch/arm/plat-samsung/include/plat/ts.h
> @@ -14,8 +14,12 @@ struct s3c2410_ts_mach_info {
> int delay;
> int presc;
> int oversampling_shift;
> + void (*cfg_gpio)(struct platform_device *dev);
> };
>
> extern void s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *);
>
> +/* defined by architecture to configure gpio */
> +extern void s3c24xx_ts_cfg_gpio(struct platform_device *dev);
> +
> #endif /* __ASM_ARM_TS_H */
> --
> 1.6.2.5
>
> --
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--
--
Ben
Q: What's a light-year?
A: One-third less calories than a regular year.
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2010-05-19 4:42 ` Ben Dooks
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