[U-Boot] [PATCH 06/10] common/lcd.c: remove global lcd_base

Bo Shen voice.shen at atmel.com
Wed Jan 16 02:24:23 CET 2013


On 1/13/2013 6:07, Jeroen Hofstee wrote:
> lcd_base is available as gd->fb_base as well, there is no need
> to keep a seperate copy.
>
> Cc: Alessandro Rubini <rubini at unipv.it>
> Cc: Anatolij Gustschin <agust at denx.de>
> Cc: Bo Shen <voice.shen at atmel.com>
> Cc: Haavard Skinnemoen <haavard.skinnemoen at atmel.com>
> Cc: Kyungmin Park <kyungmin.park at samsung.com>
> Cc: Marek Vasut <marek.vasut at gmail.com>
> Cc: Minkyu Kang <mk7.kang at samsung.com>
> Cc: Nikita Kiryanov <nikita at compulab.co.il>
> Cc: Simon Glass <sjg at chromium.org>
> Cc: Stelian Pop <stelian at popies.net>
> Cc: Tom Warren <twarren at nvidia.com>
> Signed-off-by: Jeroen Hofstee <jeroen at myspectrum.nl>
> ---
>   board/mcc200/lcd.c           |    8 ++------
>   common/lcd.c                 |    1 +
>   drivers/video/atmel_hlcdfb.c |    2 --
>   drivers/video/atmel_lcdfb.c  |    2 --
>   drivers/video/exynos_fb.c    |    8 +++-----
>   drivers/video/mpc8xx_lcd.c   |   12 ++----------
>   drivers/video/pxa_lcd.c      |    2 --
>   drivers/video/tegra.c        |    6 +-----
>   include/lcd.h                |    5 -----
>   9 files changed, 9 insertions(+), 37 deletions(-)
>
> diff --git a/board/mcc200/lcd.c b/board/mcc200/lcd.c
> index caf8d8b..feded49 100644
> --- a/board/mcc200/lcd.c
> +++ b/board/mcc200/lcd.c
> @@ -68,10 +68,6 @@ vidinfo_t panel_info = {
>   	LCD_WIDTH, LCD_HEIGHT, LCD_BPP
>   };
>
> -/*
> - * Frame buffer memory information
> - */
> -void *lcd_base;			/* Start of framebuffer memory  */
>
>   /*
>    *  The device we use to communicate with PSoC
> @@ -147,12 +143,12 @@ void lcd_enable (void)
>
>   #if !defined(SWAPPED_LCD)
>   	for (i=0; i<fb_size; i++) {
> -		serial_putc_raw_dev (PSOC_PSC, ((char *)lcd_base)[i]);
> +		serial_putc_raw_dev (PSOC_PSC, ((char *)gd->fb_base)[i]);
>   	}
>   #else
>       {
>   	int x, y, pwidth;
> -	char *p = (char *)lcd_base;
> +	char *p = (char *)gd->fb_base;
>
>   	pwidth = ((panel_info.vl_col+7) >> 3);
>   	for (y=0; y<panel_info.vl_row; y++) {
> diff --git a/common/lcd.c b/common/lcd.c
> index d3fd68d..02f4721 100644
> --- a/common/lcd.c
> +++ b/common/lcd.c
> @@ -107,6 +107,7 @@ static short console_col;
>   static short console_row;
>
>   static void *lcd_console_address;
> +static void *lcd_base;			/* Start of framebuffer memory	*/
>
>   static char lcd_flush_dcache;	/* 1 to flush dcache after each lcd update */
>
> diff --git a/drivers/video/atmel_hlcdfb.c b/drivers/video/atmel_hlcdfb.c
> index 32626cf..fc95897 100644
> --- a/drivers/video/atmel_hlcdfb.c
> +++ b/drivers/video/atmel_hlcdfb.c
> @@ -29,8 +29,6 @@
>   #include <lcd.h>
>   #include <atmel_hlcdc.h>
>
> -void *lcd_base;				/* Start of framebuffer memory	*/
> -
>   /* configurable parameters */
>   #define ATMEL_LCDC_CVAL_DEFAULT		0xc8
>   #define ATMEL_LCDC_DMA_BURST_LEN	8
> diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
> index 370d9ca..2afeab2 100644
> --- a/drivers/video/atmel_lcdfb.c
> +++ b/drivers/video/atmel_lcdfb.c
> @@ -29,8 +29,6 @@
>   #include <lcd.h>
>   #include <atmel_lcdc.h>
>
> -void *lcd_base;				/* Start of framebuffer memory	*/
> -
>   /* configurable parameters */
>   #define ATMEL_LCDC_CVAL_DEFAULT		0xc8
>   #define ATMEL_LCDC_DMA_BURST_LEN	8

For Atmel part, it is ok for me.

Acked-by: Bo Shen <voice.shen at atmel.com>

Best Regards,
Bo Shen

> diff --git a/drivers/video/exynos_fb.c b/drivers/video/exynos_fb.c
> index 3e5f868..6f3c85d 100644
> --- a/drivers/video/exynos_fb.c
> +++ b/drivers/video/exynos_fb.c
> @@ -33,7 +33,7 @@
>
>   #include "exynos_fb.h"
>
> -void *lcd_base;
> +DECLARE_GLOBAL_DATA_PTR;
>
>   static unsigned int panel_width, panel_height;
>
> @@ -44,11 +44,9 @@ static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
>
>   	fb_size = vid->vl_row * vid->vl_col * (NBITS(vid->vl_bpix) >> 3);
>
> -	lcd_base = lcdbase;
> -
>   	palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
>
> -	exynos_fimd_lcd_init_mem((unsigned long)lcd_base,
> +	exynos_fimd_lcd_init_mem((unsigned long)lcdbase,
>   			(unsigned long)fb_size, palette_size);
>   }
>
> @@ -135,7 +133,7 @@ void lcd_ctrl_init(void *lcdbase)
>   void lcd_enable(void)
>   {
>   	if (panel_info.logo_on) {
> -		memset(lcd_base, 0, panel_width * panel_height *
> +		memset((void *) gd->fb_base, 0, panel_width * panel_height *
>   				(NBITS(panel_info.vl_bpix) >> 3));
>   		draw_logo();
>   	}
> diff --git a/drivers/video/mpc8xx_lcd.c b/drivers/video/mpc8xx_lcd.c
> index 26ad432..1aa1967 100644
> --- a/drivers/video/mpc8xx_lcd.c
> +++ b/drivers/video/mpc8xx_lcd.c
> @@ -255,14 +255,6 @@ vidinfo_t panel_info = {
>   #endif
>   /*----------------------------------------------------------------------*/
>
> -
> -/*
> - * Frame buffer memory information
> - */
> -void *lcd_base;			/* Start of framebuffer memory	*/
> -
> -/************************************************************************/
> -
>   void lcd_ctrl_init (void *lcdbase);
>   void lcd_enable (void);
>   #if LCD_BPP == LCD_COLOR8
> @@ -392,8 +384,8 @@ void lcd_ctrl_init (void *lcdbase)
>   	 * BIG NOTE:  This has to be modified to load A and B depending
>   	 * upon the split mode of the LCD.
>   	 */
> -	lcdp->lcd_lcfaa = (ulong)lcd_base;
> -	lcdp->lcd_lcfba = (ulong)lcd_base;
> +	lcdp->lcd_lcfaa = (ulong)lcdbase;
> +	lcdp->lcd_lcfba = (ulong)lcdbase;
>
>   	/* MORE HACKS...This must be updated according to 823 manual
>   	 * for different panels.
> diff --git a/drivers/video/pxa_lcd.c b/drivers/video/pxa_lcd.c
> index 57243ce..fef49c1 100644
> --- a/drivers/video/pxa_lcd.c
> +++ b/drivers/video/pxa_lcd.c
> @@ -332,8 +332,6 @@ void lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue);
>   void lcd_ctrl_init	(void *lcdbase);
>   void lcd_enable	(void);
>
> -void *lcd_base;			/* Start of framebuffer memory	*/
> -
>   static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid);
>   static void pxafb_setup_gpio (vidinfo_t *vid);
>   static void pxafb_enable_controller (vidinfo_t *vid);
> diff --git a/drivers/video/tegra.c b/drivers/video/tegra.c
> index 0d1cfa9..941551c 100644
> --- a/drivers/video/tegra.c
> +++ b/drivers/video/tegra.c
> @@ -60,8 +60,6 @@ enum {
>   	LCD_MAX_LOG2_BPP	= 4,		/* 2^4 = 16 bpp */
>   };
>
> -void *lcd_base;			/* Start of framebuffer memory	*/
> -
>   vidinfo_t panel_info = {
>   	/* Insert a value here so that we don't end up in the BSS */
>   	.vl_col = -1,
> @@ -90,8 +88,6 @@ void lcd_ctrl_init(void *lcdbase)
>
>   	assert(disp_config);
>
> -	lcd_base = (void *)disp_config->frame_buffer;
> -
>   	/* Make sure that we can acommodate the selected LCD */
>   	assert(disp_config->width <= LCD_MAX_WIDTH);
>   	assert(disp_config->height <= LCD_MAX_HEIGHT);
> @@ -112,7 +108,7 @@ void lcd_ctrl_init(void *lcdbase)
>   	/* Enable flushing after LCD writes if requested */
>   	lcd_set_flush_dcache(config.cache_type & FDT_LCD_CACHE_FLUSH);
>
> -	debug("LCD frame buffer at %p\n", lcd_base);
> +	debug("LCD frame buffer at %08X\n", disp_config->frame_buffer);
>   }
>
>   ulong calc_fbsize(void)
> diff --git a/include/lcd.h b/include/lcd.h
> index b8eea9c..d54a304 100644
> --- a/include/lcd.h
> +++ b/include/lcd.h
> @@ -31,11 +31,6 @@
>
>   extern char lcd_is_enabled;
>
> -/*
> - * Frame buffer memory information
> - */
> -extern void *lcd_base;			/* Start of framebuffer memory	*/
> -
>   extern struct vidinfo panel_info;
>
>   extern void lcd_ctrl_init (void *lcdbase);
>



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