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Commit 5cbdf276 authored by Sudhakar Rajashekhara's avatar Sudhakar Rajashekhara Committed by Kevin Hilman
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davinci: Add platform support for da850/omap-l138 GLCD 



This patch adds platform support for the graphic display
(Sharp LK043T1DG01) found on DA850/OMAP-L138 based EVM.

Signed-off-by: default avatarSudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent b1466376

arch/arm/mach-davinci/board-da850-evm.c

+50 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/console.h>

#include <linux/i2c.h>

#include <linux/i2c/at24.h>

#include <linux/gpio.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -29,6 +30,9 @@ 
#define DA850_EVM_PHY_MASK		0x1

#define DA850_EVM_MDIO_FREQUENCY	2200000 /* PHY bus frequency */



#define DA850_LCD_BL_PIN		GPIO_TO_PIN(2, 15)

#define DA850_LCD_PWR_PIN		GPIO_TO_PIN(8, 10)



static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {

	.bus_freq	= 100,	/* kHz */

	.bus_delay	= 0,	/* usec */
@@ -59,6 +63,37 @@ static struct snd_platform_data da850_evm_snd_data = { 
	.rxnumevt	= 1,

};



static int da850_lcd_hw_init(void)

{

	int status;



	status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");

	if (status < 0)

		return status;



	status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");

	if (status < 0) {

		gpio_free(DA850_LCD_BL_PIN);

		return status;

	}



	gpio_direction_output(DA850_LCD_BL_PIN, 0);

	gpio_direction_output(DA850_LCD_PWR_PIN, 0);



	/* disable lcd backlight */

	gpio_set_value(DA850_LCD_BL_PIN, 0);



	/* disable lcd power */

	gpio_set_value(DA850_LCD_PWR_PIN, 0);



	/* enable lcd power */

	gpio_set_value(DA850_LCD_PWR_PIN, 1);



	/* enable lcd backlight */

	gpio_set_value(DA850_LCD_BL_PIN, 1);



	return 0;

}



static __init void da850_evm_init(void)

{
@@ -115,6 +150,21 @@ static __init void da850_evm_init(void) 
				ret);



	da8xx_init_mcasp(0, &da850_evm_snd_data);



	ret = da8xx_pinmux_setup(da850_lcdcntl_pins);

	if (ret)

		pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",

				ret);



	ret = da850_lcd_hw_init();

	if (ret)

		pr_warning("da850_evm_init: lcd initialization failed: %d\n",

				ret);



	ret = da8xx_register_lcdc();

	if (ret)

		pr_warning("da850_evm_init: lcdc registration failed: %d\n",

				ret);

}



#ifdef CONFIG_SERIAL_8250_CONSOLE

arch/arm/mach-davinci/da850.c

+42 −0
Original line number Diff line number Diff line
@@ -297,6 +297,13 @@ static struct clk mcasp_clk = { 
	.psc_ctlr	= 1,

};



static struct clk lcdc_clk = {

	.name		= "lcdc",

	.parent		= &pll0_sysclk2,

	.lpsc		= DA8XX_LPSC1_LCDC,

	.psc_ctlr	= 1,

};



static struct davinci_clk da850_clks[] = {

	CLK(NULL,		"ref",		&ref_clk),

	CLK(NULL,		"pll0",		&pll0_clk),
@@ -335,6 +342,7 @@ static struct davinci_clk da850_clks[] = { 
	CLK(NULL,		"rmii",		&rmii_clk),

	CLK("davinci_emac.1",	NULL,		&emac_clk),

	CLK("davinci-mcasp.0",	NULL,		&mcasp_clk),

	CLK("da8xx_lcdc.0",	NULL,		&lcdc_clk),

	CLK(NULL,		NULL,		NULL),

};
@@ -405,6 +413,30 @@ static const struct mux_config da850_pins[] = { 
	MUX_CFG(DA850,	AXR_2,		2,	20,	15,	1,	false)

	MUX_CFG(DA850,	AXR_1,		2,	24,	15,	1,	false)

	MUX_CFG(DA850,	AXR_0,		2,	28,	15,	1,	false)

	/* LCD function */

	MUX_CFG(DA850, LCD_D_7,		16,	8,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_6,		16,	12,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_5,		16,	16,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_4,		16,	20,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_3,		16,	24,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_2,		16,	28,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_1,		17,	0,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_0,		17,	4,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_15,	17,	8,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_14,	17,	12,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_13,	17,	16,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_12,	17,	20,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_11,	17,	24,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_10,	17,	28,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_9,		18,	0,	15,	2,	false)

	MUX_CFG(DA850, LCD_D_8,		18,	4,	15,	2,	false)

	MUX_CFG(DA850, LCD_PCLK,	18,	24,	15,	2,	false)

	MUX_CFG(DA850, LCD_HSYNC,	19,	0,	15,	2,	false)

	MUX_CFG(DA850, LCD_VSYNC,	19,	4,	15,	2,	false)

	MUX_CFG(DA850, NLCD_AC_ENB_CS,	19,	24,	15,	2,	false)

	/* GPIO function */

	MUX_CFG(DA850, GPIO2_15,	5,	0,	15,	8,	false)

	MUX_CFG(DA850, GPIO8_10,	18,	28,	15,	8,	false)

#endif

};
@@ -449,6 +481,16 @@ const short da850_mcasp_pins[] __initdata = { 
	-1

};



const short da850_lcdcntl_pins[] __initdata = {

	DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3, DA850_LCD_D_4,

	DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7, DA850_LCD_D_8,

	DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11, DA850_LCD_D_12,

	DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15, DA850_LCD_PCLK,

	DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS, DA850_GPIO2_15,

	DA850_GPIO8_10,

	-1

};



/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */

static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {

	[IRQ_DA8XX_COMMTX]		= 7,

arch/arm/mach-davinci/devices-da8xx.c

+59 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
#include <mach/common.h>

#include <mach/time.h>

#include <mach/da8xx.h>

#include <video/da8xx-fb.h>



#include "clock.h"
@@ -353,3 +354,61 @@ void __init da8xx_init_mcasp(int id, struct snd_platform_data *pdata) 
		platform_device_register(&da850_mcasp_device);

	}

}



static const struct display_panel disp_panel = {

	QVGA,

	16,

	16,

	COLOR_ACTIVE,

};



static struct lcd_ctrl_config lcd_cfg = {

	&disp_panel,

	.ac_bias		= 255,

	.ac_bias_intrpt		= 0,

	.dma_burst_sz		= 16,

	.bpp			= 16,

	.fdd			= 255,

	.tft_alt_mode		= 0,

	.stn_565_mode		= 0,

	.mono_8bit_mode		= 0,

	.invert_line_clock	= 1,

	.invert_frm_clock	= 1,

	.sync_edge		= 0,

	.sync_ctrl		= 1,

	.raster_order		= 0,

};



static struct da8xx_lcdc_platform_data da850_evm_lcdc_pdata = {

	.manu_name = "sharp",

	.controller_data = &lcd_cfg,

	.type = "Sharp_LK043T1DG01",

};



static struct resource da8xx_lcdc_resources[] = {

	[0] = { /* registers */

		.start  = DA8XX_LCD_CNTRL_BASE,

		.end    = DA8XX_LCD_CNTRL_BASE + SZ_4K - 1,

		.flags  = IORESOURCE_MEM,

	},

	[1] = { /* interrupt */

		.start  = IRQ_DA8XX_LCDINT,

		.end    = IRQ_DA8XX_LCDINT,

		.flags  = IORESOURCE_IRQ,

	},

};



static struct platform_device da850_lcdc_device = {

	.name		= "da8xx_lcdc",

	.id		= 0,

	.num_resources	= ARRAY_SIZE(da8xx_lcdc_resources),

	.resource	= da8xx_lcdc_resources,

	.dev = {

		.platform_data = &da850_evm_lcdc_pdata,

	}

};



int __init da8xx_register_lcdc(void)

{

	return platform_device_register(&da850_lcdc_device);

}

arch/arm/mach-davinci/include/mach/da8xx.h

+3 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#define DA8XX_TIMER64P1_BASE	0x01c21000

#define DA8XX_GPIO_BASE		0x01e26000

#define DA8XX_PSC1_BASE		0x01e27000

#define DA8XX_LCD_CNTRL_BASE	0x01e13000



#define PINMUX0			0x00

#define PINMUX1			0x04
@@ -66,6 +67,7 @@ int da8xx_register_edma(void); 
int da8xx_register_i2c(int instance, struct davinci_i2c_platform_data *pdata);

int da8xx_register_watchdog(void);

int da8xx_register_emac(void);

int da8xx_register_lcdc(void);

void __init da8xx_init_mcasp(int id, struct snd_platform_data *pdata);



extern struct platform_device da8xx_serial_device;
@@ -103,6 +105,7 @@ extern const short da850_i2c0_pins[]; 
extern const short da850_i2c1_pins[];

extern const short da850_cpgmac_pins[];

extern const short da850_mcasp_pins[];

extern const short da850_lcdcntl_pins[];



int da8xx_pinmux_setup(const short pins[]);

arch/arm/mach-davinci/include/mach/mux.h

+26 −0
Original line number Diff line number Diff line
@@ -775,6 +775,32 @@ enum davinci_da850_index { 
	DA850_AXR_2,

	DA850_AXR_1,

	DA850_AXR_0,



	/* LCD function */

	DA850_LCD_D_7,

	DA850_LCD_D_6,

	DA850_LCD_D_5,

	DA850_LCD_D_4,

	DA850_LCD_D_3,

	DA850_LCD_D_2,

	DA850_LCD_D_1,

	DA850_LCD_D_0,

	DA850_LCD_D_15,

	DA850_LCD_D_14,

	DA850_LCD_D_13,

	DA850_LCD_D_12,

	DA850_LCD_D_11,

	DA850_LCD_D_10,

	DA850_LCD_D_9,

	DA850_LCD_D_8,

	DA850_LCD_PCLK,

	DA850_LCD_HSYNC,

	DA850_LCD_VSYNC,

	DA850_NLCD_AC_ENB_CS,



	/* GPIO function */

	DA850_GPIO2_15,

	DA850_GPIO8_10,

};



#ifdef CONFIG_DAVINCI_MUX