(4:59), Guennadi Liakhovetski wrote:
> ap4evb uses an LCD, connected to the SoC over the MIPI bus. This patch adds
> platform data to configure this display and a static clock activation.
>
> Signed-off-by: Guennadi Liakhovetski<g.liakhovet...@gmx.de>
Console framebuffer tested on sh-2.6 tree and sh/dmaengine branch with
the necessary clock and intc patches applied.
Boot logo and framebuffer console displayed with no problems or unusual
effects.
Tested-by: Damian Hobson-Garcia <dhobs...@igel.co.jp>
> ---
>
> Nothing OMAP-relevant here, just for completeness.
>
> arch/arm/mach-shmobile/Kconfig | 1 +
> arch/arm/mach-shmobile/board-ap4evb.c | 121
> +++++++++++++++++++++++++++++++++
> 2 files changed, 122 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
> index 9003ea9..e216132 100644
> --- a/arch/arm/mach-shmobile/Kconfig
> +++ b/arch/arm/mach-shmobile/Kconfig
> @@ -42,6 +42,7 @@ config MACH_AP4EVB
> bool "AP4EVB board"
> depends on ARCH_SH7372
> select ARCH_REQUIRE_GPIOLIB
> + select SH_LCD_MIPI_DSI
>
> comment "SH-Mobile System Configuration"
>
> diff --git a/arch/arm/mach-shmobile/board-ap4evb.c
> b/arch/arm/mach-shmobile/board-ap4evb.c
> index d2bb7b0..e3f5375 100644
> --- a/arch/arm/mach-shmobile/board-ap4evb.c
> +++ b/arch/arm/mach-shmobile/board-ap4evb.c
> @@ -17,6 +17,7 @@
> * along with this program; if not, write to the Free Software
> * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
> USA
> */
> +#include<linux/clk.h>
> #include<linux/kernel.h>
> #include<linux/init.h>
> #include<linux/interrupt.h>
> @@ -32,8 +33,14 @@
> #include<linux/gpio.h>
> #include<linux/input.h>
> #include<linux/input/sh_keysc.h>
> +
> +#include<video/sh_mobile_lcdc.h>
> +#include<video/sh_mipi_dsi.h>
> +
> #include<mach/common.h>
> +#include<mach/irqs.h>
> #include<mach/sh7372.h>
> +
> #include<asm/mach-types.h>
> #include<asm/mach/arch.h>
> #include<asm/mach/map.h>
> @@ -237,11 +244,86 @@ static struct platform_device sdhi0_device = {
> },
> };
>
> +static struct sh_mobile_lcdc_info sh_mobile_lcdc_info = {
> + .clock_source = LCDC_CLK_PERIPHERAL, /* One of interface clocks */
> + .ch[0] = {
> + .chan = LCDC_CHAN_MAINLCD,
> + .bpp = 16,
> + .interface_type = RGB24,
> + .clock_divider = 1,
> + .flags = LCDC_FLAGS_DWPOL,
> + .lcd_cfg = {
> + .name = "R63302(QHD)",
> + .xres = 544,
> + .yres = 961,
> + .left_margin = 72,
> + .right_margin = 1080,
> + .hsync_len = 16,
> + .upper_margin = 8,
> + .lower_margin = 8,
> + .vsync_len = 2,
> + .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT,
> + },
> + .lcd_size_cfg = {
> + .width = 44,
> + .height = 79,
> + },
> + }
> +};
> +
> +static struct resource lcdc_resources[] = {
> + [0] = {
> + .name = "LCDC",
> + .start = 0xfe940000, /* P4-only space */
> + .end = 0xfe943fff,
> + .flags = IORESOURCE_MEM,
> + },
> + [1] = {
> + .start = evt2irq(0x580),
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +static struct platform_device lcdc_device = {
> + .name = "sh_mobile_lcdc_fb",
> + .num_resources = ARRAY_SIZE(lcdc_resources),
> + .resource = lcdc_resources,
> + .dev = {
> + .platform_data =&sh_mobile_lcdc_info,
> + .coherent_dma_mask = ~0,
> + },
> +};
> +
> +static struct resource mipidsi0_resources[] = {
> + [0] = {
> + .start = 0xffc60000,
> + .end = 0xffc68fff,
> + .flags = IORESOURCE_MEM,
> + },
> +};
> +
> +static struct sh_mipi_dsi_info mipidsi0_info = {
> + .data_format = MIPI_RGB888,
> + .lcd_chan =&sh_mobile_lcdc_info.ch[0],
> +};
> +
> +static struct platform_device mipidsi0_device = {
> + .name = "sh-mipi-dsi",
> + .num_resources = ARRAY_SIZE(mipidsi0_resources),
> + .resource = mipidsi0_resources,
> + .id = 0,
> + .dev = {
> + .platform_data =&mipidsi0_info,
> + },
> +};
> +
> static struct platform_device *ap4evb_devices[] __initdata = {
> &nor_flash_device,
> &smc911x_device,
> &keysc_device,
> &sdhi0_device,
> + &lcdc_device,
> + &mipidsi0_device,
> };
>
> static struct map_desc ap4evb_io_desc[] __initdata = {
> @@ -265,6 +347,45 @@ static void __init ap4evb_map_io(void)
> shmobile_setup_console();
> }
>
> +/* This function will disappear when we switch to (runtime) PM */
> +static int __init ap4evb_init_display_clk(void)
> +{
> + struct clk *lcdc_clk;
> + struct clk *dsitx_clk;
> + int ret;
> +
> + lcdc_clk = clk_get(&lcdc_device.dev, "lcdc0");
> + if (IS_ERR(lcdc_clk))
> + return PTR_ERR(lcdc_clk);
> +
> + dsitx_clk = clk_get(&mipidsi0_device.dev, "dsitx");
> + if (IS_ERR(dsitx_clk)) {
> + ret = PTR_ERR(dsitx_clk);
> + goto eclkdsitxget;
> + }
> +
> + ret = clk_enable(lcdc_clk);
> + if (ret< 0)
> + goto eclklcdcon;
> +
> + ret = clk_enable(dsitx_clk);
> + if (ret< 0)
> + goto eclkdsitxon;
> +
> + return 0;
> +
> +eclkdsitxon:
> + clk_disable(lcdc_clk);
> +eclklcdcon:
> + clk_put(dsitx_clk);
> +eclkdsitxget:
> + clk_put(lcdc_clk);
> +
> + return ret;
> +}
> +
> +device_initcall(ap4evb_init_display_clk);
> +
> static void __init ap4evb_init(void)
> {
> sh7372_pinmux_init();
--
Damian Hobson-Garcia
IGEL Co.,Ltd
http://www.igel.co.jp
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