RE: [PATCH V7 3/5] ARM: EXYNOS4: Add platform device and helper functions for FIMD

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Jingoo Han wrote:
> 
> From: Jonghun Han <jonghun.han@xxxxxxxxxxx>
> 
> This patch adds platform device s5p_device_fimd0 for EXYNOS4 FIMD0.
> EXYNOS4 has two FIMDs(FIMD0, FIMD1). FIMD1 will be added later.
> Some definitions used to enable EXYNOS4 FIMD0 are added.
> 
> Signed-off-by: Jonghun Han <jonghun.han@xxxxxxxxxxx>
> Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
> ---
>  arch/arm/mach-exynos4/Kconfig                |    9 ++++
>  arch/arm/mach-exynos4/Makefile               |    1 +
>  arch/arm/mach-exynos4/cpu.c                  |    4 +-
>  arch/arm/mach-exynos4/include/mach/regs-fb.h |   21 ++++++++
>  arch/arm/mach-exynos4/setup-fimd0.c          |   48 ++++++++++++++++++
>  arch/arm/plat-s5p/Kconfig                    |    5 ++
>  arch/arm/plat-s5p/Makefile                   |    1 +
>  arch/arm/plat-s5p/dev-fimd0.c                |   67
> ++++++++++++++++++++++++++
>  arch/arm/plat-samsung/include/plat/devs.h    |    1 +
>  arch/arm/plat-samsung/include/plat/fb-core.h |   15 ++++++
>  arch/arm/plat-samsung/include/plat/fb.h      |   15 ++++++
>  11 files changed, 186 insertions(+), 1 deletions(-)
>  create mode 100644 arch/arm/mach-exynos4/include/mach/regs-fb.h
>  create mode 100644 arch/arm/mach-exynos4/setup-fimd0.c
>  create mode 100644 arch/arm/plat-s5p/dev-fimd0.c
> 
> diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
> index 1435fc3..2024f50 100644
> --- a/arch/arm/mach-exynos4/Kconfig
> +++ b/arch/arm/mach-exynos4/Kconfig
> @@ -25,6 +25,11 @@ config EXYNOS4_DEV_AHCI
>  	help
>  	  Compile in platform device definitions for AHCI
> 
> +config EXYNOS4_SETUP_FIMD0
> +	bool
> +	help
> +	  Common setup code for FIMD0.
> +
>  config EXYNOS4_DEV_PD
>  	bool
>  	help
> @@ -103,6 +108,7 @@ menu "EXYNOS4 Machines"
>  config MACH_SMDKC210
>  	bool "SMDKC210"
>  	select CPU_EXYNOS4210
> +	select S5P_DEV_FIMD0
>  	select S3C_DEV_RTC
>  	select S3C_DEV_WDT
>  	select S3C_DEV_I2C1
> @@ -112,6 +118,7 @@ config MACH_SMDKC210
>  	select S3C_DEV_HSMMC3
>  	select EXYNOS4_DEV_PD
>  	select EXYNOS4_DEV_SYSMMU
> +	select EXYNOS4_SETUP_FIMD0
>  	select EXYNOS4_SETUP_I2C1
>  	select EXYNOS4_SETUP_SDHCI
>  	help
> @@ -120,6 +127,7 @@ config MACH_SMDKC210
>  config MACH_SMDKV310
>  	bool "SMDKV310"
>  	select CPU_EXYNOS4210
> +	select S5P_DEV_FIMD0
>  	select S3C_DEV_RTC
>  	select S3C_DEV_WDT
>  	select S3C_DEV_I2C1
> @@ -130,6 +138,7 @@ config MACH_SMDKV310
>  	select SAMSUNG_DEV_KEYPAD
>  	select EXYNOS4_DEV_PD
>  	select EXYNOS4_DEV_SYSMMU
> +	select EXYNOS4_SETUP_FIMD0
>  	select EXYNOS4_SETUP_I2C1
>  	select EXYNOS4_SETUP_KEYPAD
>  	select EXYNOS4_SETUP_SDHCI
> diff --git a/arch/arm/mach-exynos4/Makefile
b/arch/arm/mach-exynos4/Makefile
> index 60fe5ec..96472f1 100644
> --- a/arch/arm/mach-exynos4/Makefile
> +++ b/arch/arm/mach-exynos4/Makefile
> @@ -45,6 +45,7 @@ obj-$(CONFIG_EXYNOS4_DEV_PD)		+= dev-
> pd.o
>  obj-$(CONFIG_EXYNOS4_DEV_SYSMMU)	+= dev-sysmmu.o
> 
>  obj-$(CONFIG_EXYNOS4_SETUP_FIMC)	+= setup-fimc.o
> +obj-$(CONFIG_EXYNOS4_SETUP_FIMD0)	+= setup-fimd0.o
>  obj-$(CONFIG_EXYNOS4_SETUP_I2C1)	+= setup-i2c1.o
>  obj-$(CONFIG_EXYNOS4_SETUP_I2C2)	+= setup-i2c2.o
>  obj-$(CONFIG_EXYNOS4_SETUP_I2C3)	+= setup-i2c3.o
> diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c
> index 9babe44..778a5b0 100644
> --- a/arch/arm/mach-exynos4/cpu.c
> +++ b/arch/arm/mach-exynos4/cpu.c
> @@ -19,9 +19,10 @@
> 
>  #include <plat/cpu.h>
>  #include <plat/clock.h>
> +#include <plat/devs.h>

Is there any reason moving <plat/devs.h> from below?

> +#include <plat/fb-core.h>
>  #include <plat/exynos4.h>
>  #include <plat/sdhci.h>
> -#include <plat/devs.h>
>  #include <plat/fimc-core.h>
> 
>  #include <mach/regs-irq.h>
> @@ -132,6 +133,7 @@ void __init exynos4_map_io(void)
>  	s3c_fimc_setname(1, "exynos4-fimc");
>  	s3c_fimc_setname(2, "exynos4-fimc");
>  	s3c_fimc_setname(3, "exynos4-fimc");
> +	s5p_fb_setname(0, "exynos4-fb");	/* FIMD0 */

FB or FIMD?

sometimes used fb, sometimes fimd...

>  }
> 
>  void __init exynos4_init_clocks(int xtal)
> diff --git a/arch/arm/mach-exynos4/include/mach/regs-fb.h b/arch/arm/mach-
> exynos4/include/mach/regs-fb.h
> new file mode 100644
> index 0000000..f320105
> --- /dev/null
> +++ b/arch/arm/mach-exynos4/include/mach/regs-fb.h
> @@ -0,0 +1,21 @@
> +/*
> + * Copyright 2010 Ben Dooks <ben-linux@xxxxxxxxx>
> + *
> + * Dummy framebuffer to allow build for the moment.
> + *
> + * 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.
> +*/
> +
> +#ifndef __ASM_ARCH_MACH_REGS_FB_H
> +#define __ASM_ARCH_MACH_REGS_FB_H __FILE__
> +
> +#include <plat/regs-fb-v4.h>
> +
> +static inline unsigned int s3c_fb_pal_reg(unsigned int window, int reg)
> +{
> +	return 0x2400 + (window * 256 * 4) + reg;
> +}
> +
> +#endif /* __ASM_ARCH_MACH_REGS_FB_H */
> diff --git a/arch/arm/mach-exynos4/setup-fimd0.c
b/arch/arm/mach-exynos4/setup-
> fimd0.c
> new file mode 100644
> index 0000000..be58294
> --- /dev/null
> +++ b/arch/arm/mach-exynos4/setup-fimd0.c
> @@ -0,0 +1,48 @@
> +/* linux/arch/arm/mach-exynos4/setup-fimd0.c
> + *
> + * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com
> + *
> + * Base Exynos4 FIMD 0 configuration
> + *
> + * 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/types.h>
> +#include <linux/fb.h>
> +#include <linux/gpio.h>
> +#include <linux/clk.h>
> +
> +#include <plat/fb.h>
> +#include <plat/gpio-cfg.h>
> +
> +#include <mach/regs-clock.h>
> +#include <mach/regs-fb.h>
> +#include <mach/map.h>
> +
> +void exynos4_fimd0_gpio_setup_24bpp(void)
> +{
> +	unsigned int reg = 0;

+	unsigned int reg;

> +
> +	s3c_gpio_cfgrange_nopull(EXYNOS4_GPF0(0), 8, S3C_GPIO_SFN(2));
> +	s3c_gpio_cfgrange_nopull(EXYNOS4_GPF1(0), 8, S3C_GPIO_SFN(2));
> +	s3c_gpio_cfgrange_nopull(EXYNOS4_GPF2(0), 8, S3C_GPIO_SFN(2));
> +	s3c_gpio_cfgrange_nopull(EXYNOS4_GPF3(0), 4, S3C_GPIO_SFN(2));
> +
> +	/*
> +	 * Set DISPLAY_CONTROL register for Display path selection.
> +	 *
> +	 * DISPLAY_CONTROL[1:0]
> +	 * ---------------------
> +	 *  00 | MIE
> +	 *  01 | MDINE
> +	 *  10 | FIMD : selected
> +	 *  11 | FIMD
> +	 */
> +	reg = __raw_readl(S3C_VA_SYS + 0x0210);
> +	reg |= (1 << 1);
> +	__raw_writel(reg, S3C_VA_SYS + 0x0210);
> +}
> diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig
> index e98f5c5..46de16e 100644
> --- a/arch/arm/plat-s5p/Kconfig
> +++ b/arch/arm/plat-s5p/Kconfig
> @@ -70,6 +70,11 @@ config S5P_DEV_FIMC3
>  	help
>  	  Compile in platform device definitions for FIMC controller 3
> 
> +config S5P_DEV_FIMD0
> +	bool
> +	help
> +	  Compile in platform device definitions for FIMD controller 0
> +
>  config S5P_DEV_ONENAND
>  	bool
>  	help
> diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile
> index e234cc4..eec7e24 100644
> --- a/arch/arm/plat-s5p/Makefile
> +++ b/arch/arm/plat-s5p/Makefile
> @@ -30,6 +30,7 @@ obj-$(CONFIG_S5P_DEV_FIMC0)	+= dev-fimc0.o
>  obj-$(CONFIG_S5P_DEV_FIMC1)	+= dev-fimc1.o
>  obj-$(CONFIG_S5P_DEV_FIMC2)	+= dev-fimc2.o
>  obj-$(CONFIG_S5P_DEV_FIMC3)	+= dev-fimc3.o
> +obj-$(CONFIG_S5P_DEV_FIMD0)	+= dev-fimd0.o
>  obj-$(CONFIG_S5P_DEV_ONENAND)	+= dev-onenand.o
>  obj-$(CONFIG_S5P_DEV_CSIS0)	+= dev-csis0.o
>  obj-$(CONFIG_S5P_DEV_CSIS1)	+= dev-csis1.o
> diff --git a/arch/arm/plat-s5p/dev-fimd0.c b/arch/arm/plat-s5p/dev-fimd0.c
> new file mode 100644
> index 0000000..9e7176c
> --- /dev/null
> +++ b/arch/arm/plat-s5p/dev-fimd0.c
> @@ -0,0 +1,67 @@
> +/* linux/arch/arm/plat-s5p/dev-fimd0.c
> + *
> + * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
> + *             http://www.samsung.com
> + *
> + * Core file for Samsung Display Controller (FIMD) driver
> + *
> + * 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/string.h>
> +#include <linux/platform_device.h>
> +#include <linux/fb.h>
> +#include <linux/gfp.h>
> +#include <linux/dma-mapping.h>
> +
> +#include <mach/irqs.h>
> +#include <mach/map.h>
> +
> +#include <plat/fb.h>
> +#include <plat/devs.h>
> +#include <plat/cpu.h>
> +
> +static struct resource s5p_fimd0_resource[] = {
> +	[0] = {
> +		.start  = S5P_PA_FIMD0,
                      ^^
> +		.end    = S5P_PA_FIMD0 + SZ_32K - 1,
                    ^^^^
> +		.flags  = IORESOURCE_MEM,
                      ^^
> +	},
> +	[1] = {
> +		.start  = IRQ_FIMD0_VSYNC,
                      ^^
> +		.end    = IRQ_FIMD0_VSYNC,
                    ^^^^
> +		.flags  = IORESOURCE_IRQ,
                      ^^
> +	},
> +	[2] = {
> +		.start  = IRQ_FIMD0_FIFO,
                      ^^
> +		.end    = IRQ_FIMD0_FIFO,
                    ^^^^
> +		.flags  = IORESOURCE_IRQ,
                      ^^
> +	},
> +	[3] = {
> +		.start  = IRQ_FIMD0_SYSTEM,
                      ^^
> +		.end    = IRQ_FIMD0_SYSTEM,
                    ^^^^
> +		.flags  = IORESOURCE_IRQ,
                      ^^
> +	},
> +};
> +
> +static u64 fimd0_dmamask = DMA_BIT_MASK(32);
> +
> +struct platform_device s5p_device_fimd0 = {
> +	.name           = "s5p-fb",
             ^^^^^^^^^^^
> +	.id             = 0,
           ^^^^^^^^^^^^^
> +	.num_resources  = ARRAY_SIZE(s5p_fimd0_resource),
                      ^^
> +	.resource       = s5p_fimd0_resource,
                 ^^^^^^^
> +	.dev            = {
            ^^^^^^^^^^^^
> +		.dma_mask               = &fimd0_dmamask,
                         ^^^^^^^^^^^^^^^
> +		.coherent_dma_mask      = DMA_BIT_MASK(32),
                                  ^^^^^^
I think, tab in above '^' mark?

> +	},
> +};
> +
> +void __init s5p_fimd0_set_platdata(struct s3c_fb_platdata *pd)
> +{
> +	s3c_set_platdata(pd, sizeof(struct s3c_fb_platdata),
> +			&s5p_device_fimd0);
> +}
> diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-
> samsung/include/plat/devs.h
> index 4af108f..370bd2b 100644
> --- a/arch/arm/plat-samsung/include/plat/devs.h
> +++ b/arch/arm/plat-samsung/include/plat/devs.h
> @@ -45,6 +45,7 @@ extern struct platform_device s3c64xx_device_ac97;
>  extern struct platform_device s3c_device_ts;
> 
>  extern struct platform_device s3c_device_fb;
> +extern struct platform_device s5p_device_fimd0;
>  extern struct platform_device s3c_device_ohci;
>  extern struct platform_device s3c_device_lcd;
>  extern struct platform_device s3c_device_wdt;
> diff --git a/arch/arm/plat-samsung/include/plat/fb-core.h b/arch/arm/plat-
> samsung/include/plat/fb-core.h
> index bca383e..6abcbf1 100644
> --- a/arch/arm/plat-samsung/include/plat/fb-core.h
> +++ b/arch/arm/plat-samsung/include/plat/fb-core.h
> @@ -26,4 +26,19 @@ static inline void s3c_fb_setname(char *name)
>  #endif
>  }
> 
> +/* Re-define device name depending on support. */
> +static inline void s5p_fb_setname(int id, char *name)
> +{
> +	switch (id) {
> +#ifdef CONFIG_S5P_DEV_FIMD0
> +	case 0:
> +		s5p_device_fimd0.name = name;
> +	break;
> +#endif
> +	default:
> +		printk(KERN_ERR "%s: invalid device id(%d)\n", __func__,
id);
> +	break;
> +	}
> +}
> +
>  #endif /* __ASM_PLAT_FB_CORE_H */
> diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-
> samsung/include/plat/fb.h
> index cb3ca3a..01f10e4 100644
> --- a/arch/arm/plat-samsung/include/plat/fb.h
> +++ b/arch/arm/plat-samsung/include/plat/fb.h
> @@ -74,6 +74,14 @@ struct s3c_fb_platdata {
>  extern void s3c_fb_set_platdata(struct s3c_fb_platdata *pd);
> 
>  /**
> + * s5p_fimd0_set_platdata() - Setup the FB device with platform data.
> + * @pd: The platform data to set. The data is copied from the passed
structure
> + *      so the machine data can mark the data __initdata so that any
unused
> + *      machines will end up dumping their data at runtime.
> + */
> +extern void s5p_fimd0_set_platdata(struct s3c_fb_platdata *pd);
> +
> +/**
>   * s3c64xx_fb_gpio_setup_24bpp() - S3C64XX setup function for 24bpp LCD
>   *
>   * Initialise the GPIO for an 24bpp LCD display on the RGB interface.
> @@ -94,4 +102,11 @@ extern void s5pc100_fb_gpio_setup_24bpp(void);
>   */
>  extern void s5pv210_fb_gpio_setup_24bpp(void);
> 
> +/**
> + * exynos4_fimd0_gpio_setup_24bpp() - Exynos4 setup function for 24bpp
LCD0
> + *
> + * Initialise the GPIO for an 24bpp LCD display on the RGB interface 0.
> + */
> +extern void exynos4_fimd0_gpio_setup_24bpp(void);
> +
>  #endif /* __PLAT_S3C_FB_H */
> --
> 1.7.1

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

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