diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0085-drm-add-AST2600-GFX-support.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0085-drm-add-AST2600-GFX-support.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0085-drm-add-AST2600-GFX-support.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0085-drm-add-AST2600-GFX-support.patch new file mode 100644 index 000000000..b936886cf --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/0085-drm-add-AST2600-GFX-support.patch @@ -0,0 +1,105 @@ +From 0709e2bab2d763b75683a823c97f4016253ebe6b Mon Sep 17 00:00:00 2001 +From: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +Date: Wed, 20 Nov 2019 14:58:24 -0800 +Subject: [PATCH] drm: add AST2600 GFX support + +This commit adds support for AST2600 GFX. + +Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +--- + drivers/gpu/drm/aspeed/aspeed_gfx.h | 4 ++++ + drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c | 6 +++--- + drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 18 +++++++++++------- + 3 files changed, 18 insertions(+), 10 deletions(-) + +diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx.h b/drivers/gpu/drm/aspeed/aspeed_gfx.h +index a10358bb61ec..eebd72eb1220 100644 +--- a/drivers/gpu/drm/aspeed/aspeed_gfx.h ++++ b/drivers/gpu/drm/aspeed/aspeed_gfx.h +@@ -13,11 +13,15 @@ struct aspeed_gfx { + struct drm_simple_display_pipe pipe; + struct drm_connector connector; + struct drm_fbdev_cma *fbdev; ++ u32 scu_misc_offset; + }; + + int aspeed_gfx_create_pipe(struct drm_device *drm); + int aspeed_gfx_create_output(struct drm_device *drm); + ++#define SCU_MISC_AST2500 0x2c /* SCU Misc of AST2500 */ ++#define SCU_MISC_AST2600 0xc0 /* SCU Misc1 of AST2600 */ ++ + #define CRT_CTRL1 0x60 /* CRT Control I */ + #define CRT_CTRL2 0x64 /* CRT Control II */ + #define CRT_STATUS 0x68 /* CRT Status */ +diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c +index 15db9e426ec4..2c95c720f34a 100644 +--- a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c ++++ b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c +@@ -59,8 +59,8 @@ static void aspeed_gfx_enable_controller(struct aspeed_gfx *priv) + u32 ctrl1 = readl(priv->base + CRT_CTRL1); + u32 ctrl2 = readl(priv->base + CRT_CTRL2); + +- /* SCU2C: set DAC source for display output to Graphics CRT (GFX) */ +- regmap_update_bits(priv->scu, 0x2c, BIT(16), BIT(16)); ++ /* Set DAC source for display output to Graphics CRT (GFX) */ ++ regmap_update_bits(priv->scu, priv->scu_misc_offset, BIT(16), BIT(16)); + + writel(ctrl1 | CRT_CTRL_EN, priv->base + CRT_CTRL1); + writel(ctrl2 | CRT_CTRL_DAC_EN, priv->base + CRT_CTRL2); +@@ -74,7 +74,7 @@ static void aspeed_gfx_disable_controller(struct aspeed_gfx *priv) + writel(ctrl1 & ~CRT_CTRL_EN, priv->base + CRT_CTRL1); + writel(ctrl2 & ~CRT_CTRL_DAC_EN, priv->base + CRT_CTRL2); + +- regmap_update_bits(priv->scu, 0x2c, BIT(16), 0); ++ regmap_update_bits(priv->scu, priv->scu_misc_offset, BIT(16), 0); + } + + static void aspeed_gfx_crtc_mode_set_nofb(struct aspeed_gfx *priv) +diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c +index eeb22eccd1fc..aa44e01ac245 100644 +--- a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c ++++ b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c +@@ -112,8 +112,14 @@ static int aspeed_gfx_load(struct drm_device *drm) + + priv->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2500-scu"); + if (IS_ERR(priv->scu)) { +- dev_err(&pdev->dev, "failed to find SCU regmap\n"); +- return PTR_ERR(priv->scu); ++ priv->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2600-scu"); ++ if (IS_ERR(priv->scu)) { ++ dev_err(&pdev->dev, "failed to find SCU regmap\n"); ++ return PTR_ERR(priv->scu); ++ } ++ priv->scu_misc_offset = SCU_MISC_AST2600; ++ } else { ++ priv->scu_misc_offset = SCU_MISC_AST2500; + } + + ret = of_reserved_mem_device_init(drm->dev); +@@ -130,12 +136,9 @@ static int aspeed_gfx_load(struct drm_device *drm) + } + + priv->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL); +- if (IS_ERR(priv->rst)) { +- dev_err(&pdev->dev, +- "missing or invalid reset controller device tree entry"); +- return PTR_ERR(priv->rst); ++ if (!IS_ERR_OR_NULL(priv->rst)) { ++ reset_control_deassert(priv->rst); + } +- reset_control_deassert(priv->rst); + + priv->clk = devm_clk_get(drm->dev, NULL); + if (IS_ERR(priv->clk)) { +@@ -212,6 +215,7 @@ static struct drm_driver aspeed_gfx_driver = { + + static const struct of_device_id aspeed_gfx_match[] = { + { .compatible = "aspeed,ast2500-gfx" }, ++ { .compatible = "aspeed,ast2600-gfx" }, + { } + }; + +-- +2.7.4 + |