Re: [PATCH 1/5] OMAP: RX51: Add LCD Panel support

[pHilipp Zabel <philipp.zabel@gmail.com>]

On Tue, Mar 23, 2010 at 10:56 AM, Roger Quadros <roger.quadros@nokia.com> wrote:
> From: Roger Quadros <roger.quadros@nokia.com>
>
> Adds basic support for LCD Panel on Nokia N900
>
> Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
> ---
>  arch/arm/mach-omap2/Makefile                 |    1 +
>  arch/arm/mach-omap2/board-rx51-peripherals.c |   13 ++++
>  arch/arm/mach-omap2/board-rx51-video.c       |   95 ++++++++++++++++++++++++++
>  3 files changed, 109 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-omap2/board-rx51-video.c
>
> diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
> index 4b9fc57..b03cbb4 100644
> --- a/arch/arm/mach-omap2/Makefile
> +++ b/arch/arm/mach-omap2/Makefile
> @@ -122,6 +122,7 @@ obj-$(CONFIG_MACH_NOKIA_N8X0)               += board-n8x0.o
>  obj-$(CONFIG_MACH_NOKIA_RX51)          += board-rx51.o \
>                                           board-rx51-sdram.o \
>                                           board-rx51-peripherals.o \
> +                                          board-rx51-video.o \
>                                           hsmmc.o
>  obj-$(CONFIG_MACH_OMAP_ZOOM2)          += board-zoom2.o \
>                                           board-zoom-peripherals.o \
> diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
> index 4377a4c..f404537 100644
> --- a/arch/arm/mach-omap2/board-rx51-peripherals.c
> +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
> @@ -45,6 +45,7 @@
>  /* list all spi devices here */
>  enum {
>        RX51_SPI_WL1251,
> +       RX51_SPI_MIPID,         /* LCD panel */
>  };
>
>  static struct wl12xx_platform_data wl1251_pdata;
> @@ -54,6 +55,11 @@ static struct omap2_mcspi_device_config wl1251_mcspi_config = {
>        .single_channel = 1,
>  };
>
> +static struct omap2_mcspi_device_config mipid_mcspi_config = {
> +       .turbo_mode     = 0,
> +       .single_channel = 1,
> +};
> +
>  static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
>        [RX51_SPI_WL1251] = {
>                .modalias               = "wl1251",
> @@ -64,6 +70,13 @@ static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
>                .controller_data        = &wl1251_mcspi_config,
>                .platform_data          = &wl1251_pdata,
>        },
> +       [RX51_SPI_MIPID] = {
> +               .modalias               = "acx565akm",
> +               .bus_num                = 1,
> +               .chip_select            = 2,
> +               .max_speed_hz           = 6000000,
> +               .controller_data        = &mipid_mcspi_config,
> +       },
>  };
>
>  #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
> diff --git a/arch/arm/mach-omap2/board-rx51-video.c b/arch/arm/mach-omap2/board-rx51-video.c
> new file mode 100644
> index 0000000..e3e22a8
> --- /dev/null
> +++ b/arch/arm/mach-omap2/board-rx51-video.c
> @@ -0,0 +1,95 @@
> +/*
> + * linux/arch/arm/mach-omap2/board-rx51-peripherals.c

board-rx51-video.c

> + *
> + * Copyright (C) 2010 Nokia
> + *
> + * 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/init.h>
> +#include <linux/platform_device.h>
> +#include <linux/gpio.h>
> +#include <linux/spi/spi.h>
> +
> +#include <asm/mach-types.h>
> +#include <plat/mux.h>
> +#include <plat/display.h>
> +#include <plat/mcspi.h>
> +
> +#include "mux.h"
> +
> +#define RX51_LCD_RESET_GPIO    90
> +
> +#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
> +
> +static int rx51_lcd_enable(struct omap_dss_device *dssdev)
> +{
> +       gpio_set_value(dssdev->reset_gpio, 1);
> +       return 0;
> +}
> +
> +static void rx51_lcd_disable(struct omap_dss_device *dssdev)
> +{
> +       gpio_set_value(dssdev->reset_gpio, 0);
> +}
> +
> +static struct omap_dss_device rx51_lcd_device = {
> +       .name                   = "lcd",
> +       .driver_name            = "panel-acx565akm",
> +       .type                   = OMAP_DISPLAY_TYPE_SDI,
> +       .phy.sdi.datapairs      = 2,
> +       .reset_gpio             = RX51_LCD_RESET_GPIO,
> +       .platform_enable        = rx51_lcd_enable,
> +       .platform_disable       = rx51_lcd_disable,
> +};
> +
> +static struct omap_dss_device *rx51_dss_devices[] = {
> +       &rx51_lcd_device,
> +};
> +
> +static struct omap_dss_board_info rx51_dss_board_info = {
> +       .num_devices    = ARRAY_SIZE(rx51_dss_devices),
> +       .devices        = rx51_dss_devices,
> +       .default_device = &rx51_lcd_device,
> +};
> +
> +struct platform_device rx51_display_device = {
> +       .name   = "omapdss",
> +       .id     = -1,
> +       .dev    = {
> +               .platform_data = &rx51_dss_board_info,
> +       },
> +};
> +
> +static struct platform_device *rx51_video_devices[] __initdata = {
> +       &rx51_display_device,
> +};
> +
> +static int __init rx51_video_init(void)
> +{
> +       if (!machine_is_nokia_rx51())
> +               return 0;
> +
> +       if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
> +               pr_err("%s cannot configure MUX for LCD RESET\n", __func__);
> +               return 0;
> +       }
> +
> +       if (gpio_request(RX51_LCD_RESET_GPIO, "LCD ACX565AKM reset")) {
> +               pr_err("%s failed to get LCD Reset GPIO\n", __func__);
> +               return 0;
> +       }
> +
> +       gpio_direction_output(RX51_LCD_RESET_GPIO, 1);
> +
> +       platform_add_devices(rx51_video_devices,
> +                               ARRAY_SIZE(rx51_video_devices));
> +       return 0;
> +}
> +
> +subsys_initcall(rx51_video_init);
> +
> +#endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */
> --
> 1.6.0.4
>
> --
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regards
Philipp