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Message-ID: <8d40e40f-f721-f01e-eb90-470eb65d7794@microchip.com>
Date: Mon, 18 Mar 2019 10:38:22 +0000
From: <Nicolas.Ferre@...rochip.com>
To: <alexandre.belloni@...tlin.com>, <b.zolnierkie@...sung.com>
CC: <sam@...nborg.org>, <dri-devel@...ts.freedesktop.org>,
<linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] video: fbdev: atmel_lcdfb: drop AVR and platform_data
support
On 25/02/2019 at 22:25, Alexandre Belloni wrote:
> Make the driver OF only as since AVR32 has been removed from the kernel,
> there are only OF enabled platform using it.
>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
In case it's needed:
Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
> ---
> drivers/video/fbdev/Kconfig | 6 +-
> drivers/video/fbdev/atmel_lcdfb.c | 114 ++----------------------------
> 2 files changed, 7 insertions(+), 113 deletions(-)
>
> diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
> index ae7712c9687a..f0f07d02af88 100644
> --- a/drivers/video/fbdev/Kconfig
> +++ b/drivers/video/fbdev/Kconfig
> @@ -866,8 +866,8 @@ config FB_S1D13XXX
> <http://vdc.epson.com/>
>
> config FB_ATMEL
> - tristate "AT91/AT32 LCD Controller support"
> - depends on FB && HAVE_FB_ATMEL
> + tristate "AT91 LCD Controller support"
> + depends on FB && OF && HAVE_FB_ATMEL
> select FB_BACKLIGHT
> select FB_CFB_FILLRECT
> select FB_CFB_COPYAREA
> @@ -875,7 +875,7 @@ config FB_ATMEL
> select FB_MODE_HELPERS
> select VIDEOMODE_HELPERS
> help
> - This enables support for the AT91/AT32 LCD Controller.
> + This enables support for the AT91 LCD Controller.
>
> config FB_NVIDIA
> tristate "nVidia Framebuffer Support"
> diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c
> index 4ed55e6bbb84..b8786ff62b87 100644
> --- a/drivers/video/fbdev/atmel_lcdfb.c
> +++ b/drivers/video/fbdev/atmel_lcdfb.c
> @@ -1,5 +1,5 @@
> /*
> - * Driver for AT91/AT32 LCD Controller
> + * Driver for AT91 LCD Controller
> *
> * Copyright (C) 2007 Atmel Corporation
> *
> @@ -99,86 +99,6 @@ static struct atmel_lcdfb_config at91sam9rl_config = {
> .have_intensity_bit = true,
> };
>
> -static struct atmel_lcdfb_config at32ap_config = {
> - .have_hozval = true,
> -};
> -
> -static const struct platform_device_id atmel_lcdfb_devtypes[] = {
> - {
> - .name = "at91sam9261-lcdfb",
> - .driver_data = (unsigned long)&at91sam9261_config,
> - }, {
> - .name = "at91sam9263-lcdfb",
> - .driver_data = (unsigned long)&at91sam9263_config,
> - }, {
> - .name = "at91sam9g10-lcdfb",
> - .driver_data = (unsigned long)&at91sam9g10_config,
> - }, {
> - .name = "at91sam9g45-lcdfb",
> - .driver_data = (unsigned long)&at91sam9g45_config,
> - }, {
> - .name = "at91sam9g45es-lcdfb",
> - .driver_data = (unsigned long)&at91sam9g45es_config,
> - }, {
> - .name = "at91sam9rl-lcdfb",
> - .driver_data = (unsigned long)&at91sam9rl_config,
> - }, {
> - .name = "at32ap-lcdfb",
> - .driver_data = (unsigned long)&at32ap_config,
> - }, {
> - /* terminator */
> - }
> -};
> -MODULE_DEVICE_TABLE(platform, atmel_lcdfb_devtypes);
> -
> -static struct atmel_lcdfb_config *
> -atmel_lcdfb_get_config(struct platform_device *pdev)
> -{
> - unsigned long data;
> -
> - data = platform_get_device_id(pdev)->driver_data;
> -
> - return (struct atmel_lcdfb_config *)data;
> -}
> -
> -#if defined(CONFIG_ARCH_AT91)
> -#define ATMEL_LCDFB_FBINFO_DEFAULT (FBINFO_DEFAULT \
> - | FBINFO_PARTIAL_PAN_OK \
> - | FBINFO_HWACCEL_YPAN)
> -
> -static inline void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
> - struct fb_var_screeninfo *var,
> - struct fb_info *info)
> -{
> -
> -}
> -#elif defined(CONFIG_AVR32)
> -#define ATMEL_LCDFB_FBINFO_DEFAULT (FBINFO_DEFAULT \
> - | FBINFO_PARTIAL_PAN_OK \
> - | FBINFO_HWACCEL_XPAN \
> - | FBINFO_HWACCEL_YPAN)
> -
> -static void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
> - struct fb_var_screeninfo *var,
> - struct fb_info *info)
> -{
> - u32 dma2dcfg;
> - u32 pixeloff;
> -
> - pixeloff = (var->xoffset * info->var.bits_per_pixel) & 0x1f;
> -
> - dma2dcfg = (info->var.xres_virtual - info->var.xres)
> - * info->var.bits_per_pixel / 8;
> - dma2dcfg |= pixeloff << ATMEL_LCDC_PIXELOFF_OFFSET;
> - lcdc_writel(sinfo, ATMEL_LCDC_DMA2DCFG, dma2dcfg);
> -
> - /* Update configuration */
> - lcdc_writel(sinfo, ATMEL_LCDC_DMACON,
> - lcdc_readl(sinfo, ATMEL_LCDC_DMACON)
> - | ATMEL_LCDC_DMAUPDT);
> -}
> -#endif
> -
> static u32 contrast_ctr = ATMEL_LCDC_PS_DIV8
> | ATMEL_LCDC_POL_POSITIVE
> | ATMEL_LCDC_ENA_PWMENABLE;
> @@ -404,8 +324,6 @@ static void atmel_lcdfb_update_dma(struct fb_info *info,
>
> /* Set framebuffer DMA base address and pixel offset */
> lcdc_writel(sinfo, ATMEL_LCDC_DMABADDR1, dma_addr);
> -
> - atmel_lcdfb_update_dma2d(sinfo, var, info);
> }
>
> static inline void atmel_lcdfb_free_video_memory(struct atmel_lcdfb_info *sinfo)
> @@ -978,7 +896,6 @@ static void atmel_lcdfb_stop_clock(struct atmel_lcdfb_info *sinfo)
> clk_disable_unprepare(sinfo->lcdc_clk);
> }
>
> -#ifdef CONFIG_OF
> static const struct of_device_id atmel_lcdfb_dt_ids[] = {
> { .compatible = "atmel,at91sam9261-lcdc" , .data = &at91sam9261_config, },
> { .compatible = "atmel,at91sam9263-lcdc" , .data = &at91sam9263_config, },
> @@ -986,7 +903,6 @@ static const struct of_device_id atmel_lcdfb_dt_ids[] = {
> { .compatible = "atmel,at91sam9g45-lcdc" , .data = &at91sam9g45_config, },
> { .compatible = "atmel,at91sam9g45es-lcdc" , .data = &at91sam9g45es_config, },
> { .compatible = "atmel,at91sam9rl-lcdc" , .data = &at91sam9rl_config, },
> - { .compatible = "atmel,at32ap-lcdc" , .data = &at32ap_config, },
> { /* sentinel */ }
> };
>
> @@ -1122,19 +1038,12 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
> of_node_put(display_np);
> return ret;
> }
> -#else
> -static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
> -{
> - return 0;
> -}
> -#endif
>
> static int __init atmel_lcdfb_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> struct fb_info *info;
> struct atmel_lcdfb_info *sinfo;
> - struct atmel_lcdfb_pdata *pdata = NULL;
> struct resource *regs = NULL;
> struct resource *map = NULL;
> struct fb_modelist *modelist;
> @@ -1159,21 +1068,6 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
> ret = atmel_lcdfb_of_init(sinfo);
> if (ret)
> goto free_info;
> - } else if (dev_get_platdata(dev)) {
> - struct fb_monspecs *monspecs;
> - int i;
> -
> - pdata = dev_get_platdata(dev);
> - monspecs = pdata->default_monspecs;
> - sinfo->pdata = *pdata;
> -
> - for (i = 0; i < monspecs->modedb_len; i++)
> - fb_add_videomode(&monspecs->modedb[i], &info->modelist);
> -
> - sinfo->config = atmel_lcdfb_get_config(pdev);
> -
> - info->var.bits_per_pixel = pdata->default_bpp ? pdata->default_bpp : 16;
> - memcpy(&info->monspecs, pdata->default_monspecs, sizeof(info->monspecs));
> } else {
> dev_err(dev, "cannot get default configuration\n");
> goto free_info;
> @@ -1186,7 +1080,8 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
> if (IS_ERR(sinfo->reg_lcd))
> sinfo->reg_lcd = NULL;
>
> - info->flags = ATMEL_LCDFB_FBINFO_DEFAULT;
> + info->flags = FBINFO_DEFAULT | FBINFO_PARTIAL_PAN_OK |
> + FBINFO_HWACCEL_YPAN;
> info->pseudo_palette = sinfo->pseudo_palette;
> info->fbops = &atmel_lcdfb_ops;
>
> @@ -1435,7 +1330,6 @@ static struct platform_driver atmel_lcdfb_driver = {
> .remove = __exit_p(atmel_lcdfb_remove),
> .suspend = atmel_lcdfb_suspend,
> .resume = atmel_lcdfb_resume,
> - .id_table = atmel_lcdfb_devtypes,
> .driver = {
> .name = "atmel_lcdfb",
> .of_match_table = of_match_ptr(atmel_lcdfb_dt_ids),
> @@ -1444,6 +1338,6 @@ static struct platform_driver atmel_lcdfb_driver = {
>
> module_platform_driver_probe(atmel_lcdfb_driver, atmel_lcdfb_probe);
>
> -MODULE_DESCRIPTION("AT91/AT32 LCD Controller framebuffer driver");
> +MODULE_DESCRIPTION("AT91 LCD Controller framebuffer driver");
> MODULE_AUTHOR("Nicolas Ferre <nicolas.ferre@...el.com>");
> MODULE_LICENSE("GPL");
>
--
Nicolas Ferre
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