From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/drivers/video/fbdev/atmel_lcdfb.c | 144 +++++------------------------------------------
1 files changed, 17 insertions(+), 127 deletions(-)
diff --git a/kernel/drivers/video/fbdev/atmel_lcdfb.c b/kernel/drivers/video/fbdev/atmel_lcdfb.c
index 6d01ae3..1fc8de4 100644
--- a/kernel/drivers/video/fbdev/atmel_lcdfb.c
+++ b/kernel/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
*
@@ -98,86 +98,6 @@
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
@@ -404,8 +324,6 @@
/* 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)
@@ -590,7 +508,7 @@
case 32:
var->transp.offset = 24;
var->transp.length = 8;
- /* fall through */
+ fallthrough;
case 24:
if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
/* RGB:888 mode */
@@ -715,7 +633,7 @@
case 2: value |= ATMEL_LCDC_PIXELSIZE_2; break;
case 4: value |= ATMEL_LCDC_PIXELSIZE_4; break;
case 8: value |= ATMEL_LCDC_PIXELSIZE_8; break;
- case 15: /* fall through */
+ case 15: fallthrough;
case 16: value |= ATMEL_LCDC_PIXELSIZE_16; break;
case 24: value |= ATMEL_LCDC_PIXELSIZE_24; break;
case 32: value |= ATMEL_LCDC_PIXELSIZE_32; break;
@@ -755,7 +673,7 @@
lcdc_writel(sinfo, ATMEL_LCDC_MVAL, 0);
/* Disable all interrupts */
- lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
+ lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0U);
/* Enable FIFO & DMA errors */
lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI | ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI);
@@ -906,7 +824,7 @@
return ((blank_mode == FB_BLANK_NORMAL) ? 1 : 0);
}
-static struct fb_ops atmel_lcdfb_ops = {
+static const struct fb_ops atmel_lcdfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = atmel_lcdfb_check_var,
.fb_set_par = atmel_lcdfb_set_par,
@@ -978,7 +896,6 @@
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 @@
{ .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 */ }
};
@@ -1034,7 +950,7 @@
struct fb_videomode fb_vm;
struct gpio_desc *gpiod;
struct videomode vm;
- int ret = -ENOENT;
+ int ret;
int i;
sinfo->config = (struct atmel_lcdfb_config*)
@@ -1122,19 +1038,12 @@
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;
@@ -1144,10 +1053,8 @@
ret = -ENOMEM;
info = framebuffer_alloc(sizeof(struct atmel_lcdfb_info), dev);
- if (!info) {
- dev_err(dev, "cannot allocate memory\n");
+ if (!info)
goto out;
- }
sinfo = info->par;
sinfo->pdev = pdev;
@@ -1155,30 +1062,16 @@
INIT_LIST_HEAD(&info->modelist);
- if (pdev->dev.of_node) {
- 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 {
+ if (!pdev->dev.of_node) {
dev_err(dev, "cannot get default configuration\n");
goto free_info;
}
+ ret = atmel_lcdfb_of_init(sinfo);
+ if (ret)
+ goto free_info;
+
+ ret = -ENODEV;
if (!sinfo->config)
goto free_info;
@@ -1186,7 +1079,8 @@
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;
@@ -1221,7 +1115,6 @@
sinfo->irq_base = platform_get_irq(pdev, 0);
if (sinfo->irq_base < 0) {
- dev_err(dev, "unable to get irq\n");
ret = sinfo->irq_base;
goto stop_clk;
}
@@ -1357,12 +1250,10 @@
struct device *dev = &pdev->dev;
struct fb_info *info = dev_get_drvdata(dev);
struct atmel_lcdfb_info *sinfo;
- struct atmel_lcdfb_pdata *pdata;
if (!info || !info->par)
return 0;
sinfo = info->par;
- pdata = &sinfo->pdata;
cancel_work_sync(&sinfo->task);
exit_backlight(sinfo);
@@ -1398,7 +1289,7 @@
* We don't want to handle interrupts while the clock is
* stopped. It may take forever.
*/
- lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
+ lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0U);
sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
@@ -1435,7 +1326,6 @@
.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 +1334,6 @@
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@atmel.com>");
MODULE_LICENSE("GPL");
--
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