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Message-ID: <AANLkTimVYVEQ6gth2H7i7ogf_5n9FLEPjEPJXS+sTdzU@mail.gmail.com>
Date: Wed, 25 Aug 2010 10:31:11 +0800
From: Eric Miao <eric.y.miao@...il.com>
To: "Mark F. Brown" <mark.brown314@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] pxa168: added initial support for TPO TD043MTEA1 LCD
display on Aspenite
On Wed, Aug 25, 2010 at 10:02 AM, Mark F. Brown <mark.brown314@...il.com> wrote:
> Signed-off-by: Mark F. Brown <mark.brown314@...il.com>
> ---
> arch/arm/configs/pxa168_defconfig | 10 +++++
> arch/arm/mach-mmp/aspenite.c | 59 +++++++++++++++++++++++++++++++
> arch/arm/mach-mmp/include/mach/pxa168.h | 8 ++++
> arch/arm/mach-mmp/pxa168.c | 4 ++
> drivers/video/pxa168fb.c | 4 +-
> 5 files changed, 83 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/configs/pxa168_defconfig b/arch/arm/configs/pxa168_defconfig
> index 74d7e01..32f433d 100644
> --- a/arch/arm/configs/pxa168_defconfig
> +++ b/arch/arm/configs/pxa168_defconfig
> @@ -68,3 +68,13 @@ CONFIG_DEBUG_ERRORS=y
> CONFIG_DEBUG_LL=y
> # CONFIG_CRYPTO_ANSI_CPRNG is not set
> CONFIG_CRC_CCITT=y
> +CONFIG_FB=y
> +CONFIG_FB_PXA168=y
> +CONFIG_FRAMEBUFFER_CONSOLE=y
> +CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
> +CONFIG_FONTS=y
> +CONFIG_FONT_8x8=y
> +CONFIG_LOGO=y
> +CONFIG_LOGO_LINUX_MONO=y
> +CONFIG_LOGO_LINUX_VGA16=y
> +CONFIG_LOGO_LINUX_CLUT224=y
Not sure about the status of the _defconfig story, but better to leave
this part out at this moment until that's been completely figured out.
> diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
> index 0629394..4f5f4dd 100644
> --- a/arch/arm/mach-mmp/aspenite.c
> +++ b/arch/arm/mach-mmp/aspenite.c
> @@ -23,6 +23,7 @@
> #include <mach/mfp-pxa168.h>
> #include <mach/pxa168.h>
> #include <mach/gpio.h>
> +#include <video/pxa168fb.h>
>
> #include "common.h"
>
> @@ -66,6 +67,36 @@ static unsigned long common_pin_config[] __initdata = {
> GPIO115_I2S_BCLK,
> GPIO116_I2S_RXD,
> GPIO117_I2S_TXD,
> +
> + /* LCD */
> + GPIO56_LCD_FCLK_RD,
> + GPIO57_LCD_LCLK_A0,
> + GPIO58_LCD_PCLK_WR,
> + GPIO59_LCD_DENA_BIAS,
> + GPIO60_LCD_DD0,
> + GPIO61_LCD_DD1,
> + GPIO62_LCD_DD2,
> + GPIO63_LCD_DD3,
> + GPIO64_LCD_DD4,
> + GPIO65_LCD_DD5,
> + GPIO66_LCD_DD6,
> + GPIO67_LCD_DD7,
> + GPIO68_LCD_DD8,
> + GPIO69_LCD_DD9,
> + GPIO70_LCD_DD10,
> + GPIO71_LCD_DD11,
> + GPIO72_LCD_DD12,
> + GPIO73_LCD_DD13,
> + GPIO74_LCD_DD14,
> + GPIO75_LCD_DD15,
> + GPIO76_LCD_DD16,
> + GPIO77_LCD_DD17,
> + GPIO78_LCD_DD18,
> + GPIO79_LCD_DD19,
> + GPIO80_LCD_DD20,
> + GPIO81_LCD_DD21,
> + GPIO82_LCD_DD22,
> + GPIO83_LCD_DD23,
> };
>
> static struct smc91x_platdata smc91x_info = {
> @@ -134,6 +165,33 @@ static struct i2c_board_info aspenite_i2c_info[] __initdata = {
> { I2C_BOARD_INFO("wm8753", 0x1b), },
> };
>
> +static struct fb_videomode video_modes[] = {
> + [0] = {
> + .pixclock = 30120,
> + .refresh = 60,
> + .xres = 800,
> + .yres = 480,
> + .hsync_len = 1,
> + .left_margin = 215,
> + .right_margin = 40,
> + .vsync_len = 1,
> + .upper_margin = 34,
> + .lower_margin = 10,
> + .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT,
> + },
> +};
Blank line would be good here, but I'm not picky.
> +struct pxa168fb_mach_info aspenite_lcd_info __initdata = {
Need to check if this is referenced at run-time in pxa168fb.c, if that's true,
the modes[] array above possibly won't be referenced as well, and can be
marked as __initdata too. Otherwise, we'd want to remove this __initdata
here.
> + .id = "Graphic Frame",
> + .modes = video_modes,
> + .num_modes = ARRAY_SIZE(video_modes),
> + .pix_fmt = PIX_FMT_RGB565,
> + .io_pin_allocation_mode = PIN_MODE_DUMB_24,
> + .dumb_mode = DUMB_MODE_RGB888,
> + .active = 1,
> + .panel_rbswap = 0,
> + .invert_pixclock = 0,
> +};
> +
> static void __init common_init(void)
> {
> mfp_config(ARRAY_AND_SIZE(common_pin_config));
> @@ -143,6 +201,7 @@ static void __init common_init(void)
> pxa168_add_twsi(1, NULL, ARRAY_AND_SIZE(aspenite_i2c_info));
> pxa168_add_ssp(1);
> pxa168_add_nand(&aspenite_nand_info);
> + pxa168_add_fb(&aspenite_lcd_info);
>
> /* off-chip devices */
> platform_device_register(&smc91x_device);
> diff --git a/arch/arm/mach-mmp/include/mach/pxa168.h b/arch/arm/mach-mmp/include/mach/pxa168.h
> index 27e1bc7..220738f 100644
> --- a/arch/arm/mach-mmp/include/mach/pxa168.h
> +++ b/arch/arm/mach-mmp/include/mach/pxa168.h
> @@ -10,6 +10,7 @@ extern void __init pxa168_init_irq(void);
> #include <mach/devices.h>
> #include <plat/i2c.h>
> #include <plat/pxa3xx_nand.h>
> +#include <video/pxa168fb.h>
>
> extern struct pxa_device_desc pxa168_device_uart1;
> extern struct pxa_device_desc pxa168_device_uart2;
> @@ -25,6 +26,7 @@ extern struct pxa_device_desc pxa168_device_ssp3;
> extern struct pxa_device_desc pxa168_device_ssp4;
> extern struct pxa_device_desc pxa168_device_ssp5;
> extern struct pxa_device_desc pxa168_device_nand;
> +extern struct pxa_device_desc pxa168_device_fb;
>
> static inline int pxa168_add_uart(int id)
> {
> @@ -97,4 +99,10 @@ static inline int pxa168_add_nand(struct pxa3xx_nand_platform_data *info)
> {
> return pxa_register_device(&pxa168_device_nand, info, sizeof(*info));
> }
> +
> +static inline int pxa168_add_fb(struct pxa168fb_mach_info *mi)
> +{
> + return pxa_register_device(&pxa168_device_fb, mi, sizeof(*mi));
> +}
> +
> #endif /* __ASM_MACH_PXA168_H */
> diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
> index 652ae66..9c57a32 100644
> --- a/arch/arm/mach-mmp/pxa168.c
> +++ b/arch/arm/mach-mmp/pxa168.c
> @@ -25,6 +25,7 @@
> #include <mach/dma.h>
> #include <mach/devices.h>
> #include <mach/mfp.h>
> +#include <video/pxa168fb.h>
>
> #include "common.h"
> #include "clock.h"
> @@ -79,6 +80,7 @@ static APBC_CLK(ssp4, PXA168_SSP4, 4, 0);
> static APBC_CLK(ssp5, PXA168_SSP5, 4, 0);
>
> static APMU_CLK(nand, NAND, 0x01db, 208000000);
> +static APMU_CLK(lcd, LCD, 0x7f, 312000000);
>
> /* device and clock bindings */
> static struct clk_lookup pxa168_clkregs[] = {
> @@ -96,6 +98,7 @@ static struct clk_lookup pxa168_clkregs[] = {
> INIT_CLKREG(&clk_ssp4, "pxa168-ssp.3", NULL),
> INIT_CLKREG(&clk_ssp5, "pxa168-ssp.4", NULL),
> INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
> + INIT_CLKREG(&clk_lcd, NULL, "LCDCLK"),
Or
INIT_CLKREG(&clk_lcd, "pxa168-fb", NULL),
clk_get() will match the dev_id name first, and then the clock name,
so dev_id should be normally enough, and clock name can be NULL
if there is no other clocks for this same device.
> };
>
> static int __init pxa168_init(void)
> @@ -147,3 +150,4 @@ PXA168_DEVICE(ssp2, "pxa168-ssp", 1, SSP2, 0xd401c000, 0x40, 54, 55);
> PXA168_DEVICE(ssp3, "pxa168-ssp", 2, SSP3, 0xd401f000, 0x40, 56, 57);
> PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59);
> PXA168_DEVICE(ssp5, "pxa168-ssp", 4, SSP5, 0xd4021000, 0x40, 60, 61);
> +PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8);
> diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
> index c91a7f7..d3e597e 100644
> --- a/drivers/video/pxa168fb.c
> +++ b/drivers/video/pxa168fb.c
> @@ -559,7 +559,7 @@ static struct fb_ops pxa168fb_ops = {
> .fb_imageblit = cfb_imageblit,
> };
>
> -static int __init pxa168fb_init_mode(struct fb_info *info,
> +static int pxa168fb_init_mode(struct fb_info *info,
??
> struct pxa168fb_mach_info *mi)
> {
> struct pxa168fb_info *fbi = info->par;
> @@ -599,7 +599,7 @@ static int __init pxa168fb_init_mode(struct fb_info *info,
> return ret;
> }
>
> -static int __init pxa168fb_probe(struct platform_device *pdev)
> +static int pxa168fb_probe(struct platform_device *pdev)
??
> {
> struct pxa168fb_mach_info *mi;
> struct fb_info *info = 0;
> --
> 1.7.0.4
>
>
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