[PATCH 4/9] ARM i.MX51 babbage: Add framebuffer support
Sascha Hauer
s.hauer at pengutronix.de
Tue Apr 26 03:18:02 EDT 2011
On Mon, Apr 25, 2011 at 12:53:30PM -0300, Fabio Estevam wrote:
> Hi Jason,
>
> On Mon, Apr 25, 2011 at 10:39 AM, <weitway at gmail.com> wrote:
> > From: Jason Chen <b02280 at freescale.com>
> >
> > Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> > Signed-off-by: Jason Chen <Jason.Chen at freescale.com>
> > Signed-off-by: Jason Chen <Jason.Chen at linaro.org>
> > ---
> > arch/arm/mach-mx5/Kconfig | 1 +
> > arch/arm/mach-mx5/board-mx51_babbage.c | 74 ++++++++++++++++++++++++++++++++
> > 2 files changed, 75 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
> > index 799fbc4..a512364 100644
> > --- a/arch/arm/mach-mx5/Kconfig
> > +++ b/arch/arm/mach-mx5/Kconfig
> > @@ -70,6 +70,7 @@ config MACH_MX51_BABBAGE
> > select IMX_HAVE_PLATFORM_IMX_UART
> > select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
> > select IMX_HAVE_PLATFORM_SPI_IMX
> > + select IMX_HAVE_PLATFORM_IMX_IPUV3
> > help
> > Include support for MX51 Babbage platform, also known as MX51EVK in
> > u-boot. This includes specific configurations for the board and its
> > diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
> > index c7b3fab..5689220 100644
> > --- a/arch/arm/mach-mx5/board-mx51_babbage.c
> > +++ b/arch/arm/mach-mx5/board-mx51_babbage.c
> > @@ -19,10 +19,12 @@
> > #include <linux/input.h>
> > #include <linux/spi/flash.h>
> > #include <linux/spi/spi.h>
> > +#include <video/imx-ipu-v3.h>
> >
> > #include <mach/common.h>
> > #include <mach/hardware.h>
> > #include <mach/iomux-mx51.h>
> > +#include <mach/ipu-v3.h>
> >
> > #include <asm/irq.h>
> > #include <asm/setup.h>
> > @@ -154,6 +156,41 @@ static iomux_v3_cfg_t mx51babbage_pads[] = {
> > MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,
> > MX51_PAD_CSPI1_SS0__GPIO4_24,
> > MX51_PAD_CSPI1_SS1__GPIO4_25,
> > +
> > + /* Display */
> > + MX51_PAD_DISPB2_SER_DIN__GPIO3_5,
> > + MX51_PAD_DISPB2_SER_DIO__GPIO3_6,
> > + MX51_PAD_NANDF_D12__GPIO3_28,
> > +
> > + MX51_PAD_DISP1_DAT0__DISP1_DAT0,
> > + MX51_PAD_DISP1_DAT1__DISP1_DAT1,
> > + MX51_PAD_DISP1_DAT2__DISP1_DAT2,
> > + MX51_PAD_DISP1_DAT3__DISP1_DAT3,
> > + MX51_PAD_DISP1_DAT4__DISP1_DAT4,
> > + MX51_PAD_DISP1_DAT5__DISP1_DAT5,
> > + MX51_PAD_DISP1_DAT6__DISP1_DAT6,
> > + MX51_PAD_DISP1_DAT7__DISP1_DAT7,
> > + MX51_PAD_DISP1_DAT8__DISP1_DAT8,
> > + MX51_PAD_DISP1_DAT9__DISP1_DAT9,
> > + MX51_PAD_DISP1_DAT10__DISP1_DAT10,
> > + MX51_PAD_DISP1_DAT11__DISP1_DAT11,
> > + MX51_PAD_DISP1_DAT12__DISP1_DAT12,
> > + MX51_PAD_DISP1_DAT13__DISP1_DAT13,
> > + MX51_PAD_DISP1_DAT14__DISP1_DAT14,
> > + MX51_PAD_DISP1_DAT15__DISP1_DAT15,
> > + MX51_PAD_DISP1_DAT16__DISP1_DAT16,
> > + MX51_PAD_DISP1_DAT17__DISP1_DAT17,
> > + MX51_PAD_DISP1_DAT18__DISP1_DAT18,
> > + MX51_PAD_DISP1_DAT19__DISP1_DAT19,
> > + MX51_PAD_DISP1_DAT20__DISP1_DAT20,
> > + MX51_PAD_DISP1_DAT21__DISP1_DAT21,
> > + MX51_PAD_DISP1_DAT22__DISP1_DAT22,
> > + MX51_PAD_DISP1_DAT23__DISP1_DAT23,
> > +#define MX51_PAD_DI_GP4__IPU_DI2_PIN15 IOMUX_PAD(0x758, 0x350, 4, 0x0, 0, NO_PAD_CTRL)
> > + MX51_PAD_DI_GP4__IPU_DI2_PIN15,
> > +
> > + /* I2C DVI enable */
> > + MX51_PAD_CSI2_HSYNC__GPIO4_14,
> > };
> >
> > /* Serial ports */
> > @@ -331,6 +368,23 @@ static const struct spi_imx_master mx51_babbage_spi_pdata __initconst = {
> > .num_chipselect = ARRAY_SIZE(mx51_babbage_spi_cs),
> > };
> >
> > +static struct ipuv3_fb_platform_data babbage_fb0_data = {
> > + .interface_pix_fmt = IPU_PIX_FMT_RGB24,
> > + .flags = IMX_IPU_FB_USE_MODEDB | IMX_IPU_FB_USE_OVERLAY,
> > + .display = 0,
> > +};
> > +
> > +static struct ipuv3_fb_platform_data babbage_fb1_data = {
> > + .interface_pix_fmt = IPU_PIX_FMT_RGB565,
> > + .flags = IMX_IPU_FB_USE_MODEDB,
> > + .display = 1,
> > +};
> > +
> > +static struct imx_ipuv3_platform_data ipu_data = {
> > + .fb_head0_platform_data = &babbage_fb0_data,
> > + .fb_head1_platform_data = &babbage_fb1_data,
> > +};
> > +
> > /*
> > * Board specific initialization.
> > */
> > @@ -381,6 +435,26 @@ static void __init mx51_babbage_init(void)
> > ARRAY_SIZE(mx51_babbage_spi_board_info));
> > imx51_add_ecspi(0, &mx51_babbage_spi_pdata);
> > imx51_add_imx2_wdt(0, NULL);
> > +
> > +#define GPIO_DVI_DETECT (2 * 32 + 28)
> > +#define GPIO_DVI_RESET (2 * 32 + 5)
> > +#define GPIO_DVI_PWRDN (2 * 32 + 6)
> > +#define GPIO_DVI_I2C (3 * 32 + 14)
> > +
> > + /* DVI Detect */
> > + gpio_request(GPIO_DVI_DETECT, "dvi detect");
> > + gpio_direction_input(GPIO_DVI_DETECT);
> > + /* DVI Reset - Assert for i2c disabled mode */
> > + gpio_request(GPIO_DVI_RESET, "dvi reset");
> > + gpio_direction_output(GPIO_DVI_RESET, 0);
> > + /* DVI Power-down */
> > + gpio_request(GPIO_DVI_PWRDN, "dvi pwdn");
> > + gpio_direction_output(GPIO_DVI_PWRDN, 1);
> > +
> > + gpio_request(GPIO_DVI_I2C, "dvi i2c");
> > + gpio_direction_output(GPIO_DVI_I2C, 0);
>
> Please use gpio_request_one instead of gpio_request followed by
> gpio_direction calls.
And even better use gpio_request_array for multiple gpios.
Sascha
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