This patch adds platform support for the graphic display (Sharp LK043T1DG01) found on DA850/OMAP-L138 based EVM.
Signed-off-by: Sudhakar Rajashekhara <[email protected]> --- arch/arm/mach-davinci/board-da850-evm.c | 71 ++++++++++++++++++++++++++++ arch/arm/mach-davinci/da850.c | 42 ++++++++++++++++ arch/arm/mach-davinci/devices-da8xx.c | 59 +++++++++++++++++++++++ arch/arm/mach-davinci/include/mach/da8xx.h | 3 + arch/arm/mach-davinci/include/mach/mux.h | 26 ++++++++++ 5 files changed, 201 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index d989346..45575e5 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -17,6 +17,8 @@ #include <linux/console.h> #include <linux/i2c.h> #include <linux/i2c/at24.h> +#include <linux/gpio.h> +#include <linux/delay.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -25,6 +27,7 @@ #include <mach/irqs.h> #include <mach/cp_intc.h> #include <mach/da8xx.h> +#include <mach/psc.h> #define DA850_EVM_PHY_MASK 0x1 #define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */ @@ -38,6 +41,59 @@ static struct davinci_uart_config da850_evm_uart_config __initdata = { .enabled_uarts = 0x7, }; +int da850_lcd_hw_init(void) +{ + /* GPIO 2[15] is used for LCD back light - 16 * 2 + 15 = 47 */ + int bl_gpio_num = 47; + + /* GPIO 8[10] is used for LCD power - 16 * 8 + 10 = 138 */ + int pwr_gpio_num = 138; + int status; + + status = gpio_request(bl_gpio_num, "lcd bl\n"); + if (status < 0) + return status; + + status = gpio_request(pwr_gpio_num, "lcd pwr\n"); + if (status < 0) + return status; + + gpio_direction_output(bl_gpio_num, 0); + gpio_direction_output(pwr_gpio_num, 0); + + /* disable lcd backlight */ + gpio_set_value(bl_gpio_num, 0); + + /* disable lcd power */ + gpio_set_value(pwr_gpio_num, 0); + + /* wait for sometime */ + mdelay(3); + + /* disable lcdc */ + davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, 1, DA8XX_LPSC1_LCDC, 0); + + /* wait for sometime */ + mdelay(1); + + /* enable lcd power */ + gpio_set_value(pwr_gpio_num, 1); + + /* enable lcdc */ + davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, 1, DA8XX_LPSC1_LCDC, 1); + + /* wait for sometime */ + mdelay(3); + + /* enable lcd backlight */ + gpio_set_value(bl_gpio_num, 1); + + gpio_free(bl_gpio_num); + gpio_free(pwr_gpio_num); + + return 0; +} + static __init void da850_evm_init(void) { struct davinci_soc_info *soc_info = &davinci_soc_info; @@ -86,6 +142,21 @@ static __init void da850_evm_init(void) */ __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30); __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30); + + 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 diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index c5efc51..69acb6e 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -290,6 +290,13 @@ static struct clk emac_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), @@ -327,6 +334,7 @@ static struct davinci_clk da850_clks[] = { CLK(NULL, "arm", &arm_clk), CLK(NULL, "rmii", &rmii_clk), CLK("davinci_emac.1", NULL, &emac_clk), + CLK("da8xx_lcdc.0", NULL, &lcdc_clk), CLK(NULL, NULL, NULL), }; @@ -373,6 +381,30 @@ static const struct mux_config da850_pins[] = { MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false) MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false) MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, 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 }; @@ -410,6 +442,16 @@ const short da850_cpgmac_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, diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 11c0971..ef7db41 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -21,6 +21,7 @@ #include <mach/common.h> #include <mach/time.h> #include <mach/da8xx.h> +#include <video/da8xx-fb.h> #include "clock.h" @@ -285,3 +286,61 @@ int __init da8xx_register_emac(void) { return platform_device_register(&da8xx_emac_device); } + +static const struct display_panel disp_panel = { + QVGA, + 16, + 16, + COLOR_ACTIVE, +}; + +static struct lcd_ctrl_config lcd_cfg = { + &disp_panel, /* p_disp_panel */ + .ac_bias = 255, /* ac bias */ + .ac_bias_intrpt = 0, /* ac bias intrpt */ + .dma_burst_sz = 16, /* dma_burst_sz */ + .bpp = 16, /* bpp */ + .fdd = 255, /* fdd */ + .tft_alt_mode = 0, /* tft_alt_mode */ + .stn_565_mode = 0, /* stn_565_mode */ + .mono_8bit_mode = 0, /* mono_8bit_mode */ + .invert_line_clock = 1, /* invert_line_clock */ + .invert_frm_clock = 1, /* invert_frm_clock */ + .sync_edge = 0, /* sync_edge */ + .sync_ctrl = 1, /* sync_ctrl */ + .raster_order = 0, /* raster_order */ +}; + +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); +} diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index a8cb570..951e091 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -36,6 +36,7 @@ #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 @@ -65,6 +66,7 @@ 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); extern struct platform_device da8xx_serial_device; extern struct emac_platform_data da8xx_emac_pdata; @@ -100,6 +102,7 @@ extern const short da850_uart2_pins[]; extern const short da850_i2c0_pins[]; extern const short da850_i2c1_pins[]; extern const short da850_cpgmac_pins[]; +extern const short da850_lcdcntl_pins[]; int da8xx_pinmux_setup(const short pins[]); diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h index 8676680..6aab1be 100644 --- a/arch/arm/mach-davinci/include/mach/mux.h +++ b/arch/arm/mach-davinci/include/mach/mux.h @@ -750,6 +750,32 @@ enum davinci_da850_index { DA850_MII_RXD_0, DA850_MDIO_CLK, DA850_MDIO_D, + + /* 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 -- 1.5.6 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
