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| author | Tom Rini <trini@konsulko.com> | 2023-12-15 13:33:11 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-12-15 13:33:11 -0500 |
| commit | c936ef78704fa33afa71dfec347e8785bcb3d46c (patch) | |
| tree | bbb4ca27e12343b541eaacabaeaa484f017a8aa5 /drivers/video/stm32/stm32_ltdc.c | |
| parent | d7a2c7ff7528653612dfeed175a127b1e691e855 (diff) | |
| parent | 395507e50d7137e0bcfce74e1b4122e49d9984cb (diff) | |
Merge tag 'u-boot-stm32-20231215' of https://source.denx.de/u-boot/custodians/u-boot-stm into next
_ run savedefconfig on all STM32 defconfig
STM32 MCU:
_ Sync stm32f469-disco DT with Linux 6.5
_ rework ltdc node for stm32f769-disco
_ clk: stm32f: Fix settings for LCD_CLK
_ Support display on stm32f469-disco board
STM32 MPU:
_ stm32mp_dfu : Fix board_get_alt_info_mtd()
_ stm32mp_dfu : Simplify MTD device parsing
Diffstat (limited to 'drivers/video/stm32/stm32_ltdc.c')
| -rw-r--r-- | drivers/video/stm32/stm32_ltdc.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/video/stm32/stm32_ltdc.c b/drivers/video/stm32/stm32_ltdc.c index 6fd90e33919..4f60ba8ebee 100644 --- a/drivers/video/stm32/stm32_ltdc.c +++ b/drivers/video/stm32/stm32_ltdc.c @@ -495,6 +495,33 @@ static void stm32_ltdc_set_layer1(struct stm32_ltdc_priv *priv, ulong fb_addr) setbits_le32(priv->regs + LTDC_L1CR, LXCR_LEN); } +#if IS_ENABLED(CONFIG_TARGET_STM32F469_DISCOVERY) +static int stm32_ltdc_alloc_fb(struct udevice *dev) +{ + u32 sdram_size = gd->ram_size; + struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev); + phys_addr_t cpu; + dma_addr_t bus; + u64 dma_size; + int ret; + + ret = dev_get_dma_range(dev, &cpu, &bus, &dma_size); + if (ret) { + dev_err(dev, "failed to get dma address\n"); + return ret; + } + + uc_plat->base = bus + sdram_size - ALIGN(uc_plat->size, uc_plat->align); + return 0; +} +#else +static inline int stm32_ltdc_alloc_fb(struct udevice *dev) +{ + /* Delegate framebuffer allocation to video-uclass */ + return 0; +} +#endif + static int stm32_ltdc_probe(struct udevice *dev) { struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev); @@ -605,6 +632,10 @@ static int stm32_ltdc_probe(struct udevice *dev) priv->crop_h = timings.vactive.typ; priv->alpha = 0xFF; + ret = stm32_ltdc_alloc_fb(dev); + if (ret) + return ret; + dev_dbg(dev, "%dx%d %dbpp frame buffer at 0x%lx\n", timings.hactive.typ, timings.vactive.typ, VNBITS(priv->l2bpp), uc_plat->base); |