mt8183 gamma module will different with mt8173 separate gamma for add private data
Signed-off-by: Yongqiang Niu yongqiang.niu@mediatek.com --- drivers/gpu/drm/mediatek/Makefile | 1 + drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 185 ++++++++++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 58 +-------- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 + 6 files changed, 192 insertions(+), 58 deletions(-) create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_gamma.c
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index a892ede..17a08e2 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0
mediatek-drm-y := mtk_disp_color.o \ + mtk_disp_gamma.o \ mtk_disp_ovl.o \ mtk_disp_rdma.o \ mtk_drm_crtc.o \ diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c new file mode 100644 index 0000000..8501821 --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -0,0 +1,185 @@ +/* + * SPDX-License-Identifier: + * + * Copyright (c) 2020 MediaTek Inc. + */ + +#include <linux/clk.h> +#include <linux/component.h> +#include <linux/of_device.h> +#include <linux/of_irq.h> +#include <linux/platform_device.h> +#include <linux/soc/mediatek/mtk-cmdq.h> + +#include "mtk_drm_crtc.h" +#include "mtk_drm_ddp_comp.h" + +#define DISP_GAMMA_EN 0x0000 +#define GAMMA_EN BIT(0) +#define DISP_GAMMA_CFG 0x0020 +#define GAMMA_LUT_EN BIT(1) +#define DISP_GAMMA_SIZE 0x0030 +#define DISP_GAMMA_LUT 0x0700 + +#define LUT_10BIT_MASK 0x03ff + +struct mtk_disp_gamma_data { + u32 reserved; +}; + +/** + * struct mtk_disp_gamma - DISP_GAMMA driver structure + * @ddp_comp - structure containing type enum and hardware resources + * @crtc - associated crtc to report irq events to + */ +struct mtk_disp_gamma { + struct mtk_ddp_comp ddp_comp; + const struct mtk_disp_gamma_data *data; +}; + +static inline struct mtk_disp_gamma *comp_to_gamma(struct mtk_ddp_comp *comp) +{ + return container_of(comp, struct mtk_disp_gamma, ddp_comp); +} + +void mtk_gamma_set(struct mtk_ddp_comp *comp, struct drm_crtc_state *state) +{ + unsigned int i, reg; + struct drm_color_lut *lut; + void __iomem *lut_base; + u32 word; + + if (state->gamma_lut) { + reg = readl(comp->regs + DISP_GAMMA_CFG); + reg = reg | GAMMA_LUT_EN; + writel(reg, comp->regs + DISP_GAMMA_CFG); + lut_base = comp->regs + DISP_GAMMA_LUT; + lut = (struct drm_color_lut *)state->gamma_lut->data; + for (i = 0; i < MTK_LUT_SIZE; i++) { + word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + + (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + + ((lut[i].blue >> 6) & LUT_10BIT_MASK); + writel(word, (lut_base + i * 4)); + } + } +} + +static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_gamma *gamma = comp_to_gamma(comp); + + mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE); + + mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt); +} + +static void mtk_gamma_start(struct mtk_ddp_comp *comp) +{ + writel(GAMMA_EN, comp->regs + DISP_GAMMA_EN); +} + +static void mtk_gamma_stop(struct mtk_ddp_comp *comp) +{ + writel_relaxed(0x0, comp->regs + DISP_GAMMA_EN); +} + +static const struct mtk_ddp_comp_funcs mtk_disp_gamma_funcs = { + .gamma_set = mtk_gamma_set, + .config = mtk_gamma_config, + .start = mtk_gamma_start, + .stop = mtk_gamma_stop, +}; + +static int mtk_disp_gamma_bind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_disp_gamma *priv = dev_get_drvdata(dev); + struct drm_device *drm_dev = data; + int ret; + + ret = mtk_ddp_comp_register(drm_dev, &priv->ddp_comp); + if (ret < 0) { + dev_err(dev, "Failed to register component %pOF: %d\n", + dev->of_node, ret); + return ret; + } + + return 0; +} + +static void mtk_disp_gamma_unbind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_disp_gamma *priv = dev_get_drvdata(dev); + struct drm_device *drm_dev = data; + + mtk_ddp_comp_unregister(drm_dev, &priv->ddp_comp); +} + +static const struct component_ops mtk_disp_gamma_component_ops = { + .bind = mtk_disp_gamma_bind, + .unbind = mtk_disp_gamma_unbind, +}; + +static int mtk_disp_gamma_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_disp_gamma *priv; + int comp_id; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DISP_GAMMA); + if (comp_id < 0) { + dev_err(dev, "Failed to identify by alias: %d\n", comp_id); + return comp_id; + } + + ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, + &mtk_disp_gamma_funcs); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "Failed to initialize component: %d\n", + ret); + + return ret; + } + + priv->data = of_device_get_match_data(dev); + + platform_set_drvdata(pdev, priv); + + ret = component_add(dev, &mtk_disp_gamma_component_ops); + if (ret) + dev_err(dev, "Failed to add component: %d\n", ret); + + return ret; +} + +static int mtk_disp_gamma_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &mtk_disp_gamma_component_ops); + + return 0; +} + +static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = { + { .compatible = "mediatek,mt8173-disp-gamma"}, + {}, +}; +MODULE_DEVICE_TABLE(of, mtk_disp_gamma_driver_dt_match); + +struct platform_driver mtk_disp_gamma_driver = { + .probe = mtk_disp_gamma_probe, + .remove = mtk_disp_gamma_remove, + .driver = { + .name = "mediatek-disp-gamma", + .owner = THIS_MODULE, + .of_match_table = mtk_disp_gamma_driver_dt_match, + }, +}; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 3064eac..03589c9 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -55,11 +55,6 @@ #define DITHER_RELAY_MODE BIT(0) #define DISP_DITHER_SIZE 0x0030
-#define DISP_GAMMA_EN 0x0000 -#define DISP_GAMMA_CFG 0x0020 -#define DISP_GAMMA_SIZE 0x0030 -#define DISP_GAMMA_LUT 0x0700 - #define LUT_10BIT_MASK 0x03ff
#define OD_RELAYMODE BIT(0) @@ -68,9 +63,6 @@
#define AAL_EN BIT(0)
-#define GAMMA_EN BIT(0) -#define GAMMA_LUT_EN BIT(1) - #define DISP_DITHERING BIT(2) #define DITHER_LSB_ERR_SHIFT_R(x) (((x) & 0x7) << 28) #define DITHER_OVFLW_BIT_R(x) (((x) & 0x7) << 24) @@ -280,47 +272,6 @@ static void mtk_dither_stop(struct mtk_ddp_comp *comp) writel_relaxed(0x0, comp->regs + DISP_DITHER_EN); }
-static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w, - unsigned int h, unsigned int vrefresh, - unsigned int bpc, struct cmdq_pkt *cmdq_pkt) -{ - mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE); - mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt); -} - -static void mtk_gamma_start(struct mtk_ddp_comp *comp) -{ - writel(GAMMA_EN, comp->regs + DISP_GAMMA_EN); -} - -static void mtk_gamma_stop(struct mtk_ddp_comp *comp) -{ - writel_relaxed(0x0, comp->regs + DISP_GAMMA_EN); -} - -static void mtk_gamma_set(struct mtk_ddp_comp *comp, - struct drm_crtc_state *state) -{ - unsigned int i, reg; - struct drm_color_lut *lut; - void __iomem *lut_base; - u32 word; - - if (state->gamma_lut) { - reg = readl(comp->regs + DISP_GAMMA_CFG); - reg = reg | GAMMA_LUT_EN; - writel(reg, comp->regs + DISP_GAMMA_CFG); - lut_base = comp->regs + DISP_GAMMA_LUT; - lut = (struct drm_color_lut *)state->gamma_lut->data; - for (i = 0; i < MTK_LUT_SIZE; i++) { - word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + - (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + - ((lut[i].blue >> 6) & LUT_10BIT_MASK); - writel(word, (lut_base + i * 4)); - } - } -} - static const struct mtk_ddp_comp_funcs ddp_aal = { .gamma_set = mtk_gamma_set, .config = mtk_aal_config, @@ -341,13 +292,6 @@ static void mtk_gamma_set(struct mtk_ddp_comp *comp, .stop = mtk_dither_stop, };
-static const struct mtk_ddp_comp_funcs ddp_gamma = { - .gamma_set = mtk_gamma_set, - .config = mtk_gamma_config, - .start = mtk_gamma_start, - .stop = mtk_gamma_stop, -}; - static const struct mtk_ddp_comp_funcs ddp_od = { .config = mtk_od_config, .start = mtk_od_start, @@ -396,7 +340,7 @@ struct mtk_ddp_comp_match { [DDP_COMPONENT_DSI1] = { MTK_DSI, 1, NULL }, [DDP_COMPONENT_DSI2] = { MTK_DSI, 2, NULL }, [DDP_COMPONENT_DSI3] = { MTK_DSI, 3, NULL }, - [DDP_COMPONENT_GAMMA] = { MTK_DISP_GAMMA, 0, &ddp_gamma }, + [DDP_COMPONENT_GAMMA] = { MTK_DISP_GAMMA, 0, NULL }, [DDP_COMPONENT_OD0] = { MTK_DISP_OD, 0, &ddp_od }, [DDP_COMPONENT_OD1] = { MTK_DISP_OD, 1, &ddp_od }, [DDP_COMPONENT_OVL0] = { MTK_DISP_OVL, 0, NULL }, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index 5aa52b7..178fae9 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -179,6 +179,7 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node, void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp); void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc, unsigned int CFG, struct cmdq_pkt *cmdq_pkt); +void mtk_gamma_set(struct mtk_ddp_comp *comp, struct drm_crtc_state *state); enum mtk_ddp_comp_type mtk_ddp_comp_get_type(enum mtk_ddp_comp_id comp_id); void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value, struct mtk_ddp_comp *comp, unsigned int offset); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 2f717df..37fec25 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -488,11 +488,12 @@ static int mtk_drm_probe(struct platform_device *pdev) private->comp_node[comp_id] = of_node_get(node);
/* - * Currently only the COLOR, OVL, RDMA, DSI, and DPI blocks have + * Currently only the COLOR, GAMMA, OVL, RDMA, DSI, and DPI blocks have * separate component platform drivers and initialize their own * DDP component structure. The others are initialized here. */ if (comp_type == MTK_DISP_COLOR || + comp_type == MTK_DISP_GAMMA || comp_type == MTK_DISP_OVL || comp_type == MTK_DISP_OVL_2L || comp_type == MTK_DISP_RDMA || @@ -606,6 +607,7 @@ static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend, static struct platform_driver * const mtk_drm_drivers[] = { &mtk_ddp_driver, &mtk_disp_color_driver, + &mtk_disp_gamma_driver, &mtk_disp_ovl_driver, &mtk_disp_rdma_driver, &mtk_dpi_driver, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h index 5d771cf..bbd362b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -48,6 +48,7 @@ struct mtk_drm_private {
extern struct platform_driver mtk_ddp_driver; extern struct platform_driver mtk_disp_color_driver; +extern struct platform_driver mtk_disp_gamma_driver; extern struct platform_driver mtk_disp_ovl_driver; extern struct platform_driver mtk_disp_rdma_driver; extern struct platform_driver mtk_dpi_driver;