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Date: Mon, 20 Dec 2010 20:35:18 +0800 From: arden jay <arden.jay@...il.com> To: Sascha Hauer <s.hauer@...gutronix.de> Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Samuel Ortiz <sameo@...ux.intel.com>, liu.y.victor@...il.com, B02280@...escale.com Subject: Re: [PATCH 9/9] ARM i.MX51 babbage: Add framebuffer support Hi Sascha, 2010/12/20 Sascha Hauer <s.hauer@...gutronix.de>: > Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de> > --- > 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 5011f42..2a936b7 100644 > --- a/arch/arm/mach-mx5/Kconfig > +++ b/arch/arm/mach-mx5/Kconfig > @@ -22,6 +22,7 @@ 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 368a315..6c1576c 100644 > --- a/arch/arm/mach-mx5/board-mx51_babbage.c > +++ b/arch/arm/mach-mx5/board-mx51_babbage.c > @@ -22,11 +22,13 @@ > #include <linux/input.h> > #include <linux/spi/flash.h> > #include <linux/spi/spi.h> > +#include <linux/mfd/imx-ipu-v3.h> > > #include <mach/common.h> > #include <mach/hardware.h> > #include <mach/iomux-mx51.h> > #include <mach/mxc_ehci.h> > +#include <mach/ipu-v3.h> > Why it needs imx-ipu-v3.h and ipu-v3.h? > #include <asm/irq.h> > #include <asm/setup.h> > @@ -158,6 +160,41 @@ static iomux_v3_cfg_t mx51babbage_pads[] = { > MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, > MX51_PAD_CSPI1_SS0__GPIO_4_24, > MX51_PAD_CSPI1_SS1__GPIO_4_25, > + > + /* Display */ > + MX51_PAD_DISPB2_SER_DIN__GPIO_3_5, > + MX51_PAD_DISPB2_SER_DIO__GPIO_3_6, > + MX51_PAD_NANDF_D12__GPIO_3_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__GPIO_4_14, > }; > > /* Serial ports */ > @@ -346,6 +383,23 @@ 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. > */ > @@ -392,6 +446,26 @@ static void __init mxc_board_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) This should be in board-xxx.h. > + > + /* 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); > + Can this implement as function, and passes to specified driver who needs it? > + imx51_add_ipuv3(&ipu_data); > } > > static void __init mx51_babbage_timer_init(void) > -- > 1.7.2.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- cheers, jay -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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