| Message ID | 20210127045422.2418917-6-hsinyi@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/mediatek: add support for mediatek SOC MT8183 | expand |
Hi, Hsin-Yi: On Wed, 2021-01-27 at 12:54 +0800, Hsin-Yi Wang wrote: > From: Yongqiang Niu <yongqiang.niu@mediatek.com> > > mt8183 gamma module will different with mt8173 > separate gamma for add private data Reviewed-by: CK Hu <ck.hu@mediatek.com> > > Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com> > Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> > --- > drivers/gpu/drm/mediatek/Makefile | 1 + > drivers/gpu/drm/mediatek/mtk_disp_drv.h | 10 ++ > drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 188 ++++++++++++++++++++ > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 71 ++------ > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +- > drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 + > 6 files changed, 214 insertions(+), 61 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 01d06332f7679..b64674b944860 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_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h > index c50d5fc9fd349..c1e658b490b6c 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h > +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h > @@ -27,6 +27,16 @@ void mtk_dpi_stop(struct device *dev); > void mtk_dsi_ddp_start(struct device *dev); > void mtk_dsi_ddp_stop(struct device *dev); > > +int mtk_gamma_clk_enable(struct device *dev); > +void mtk_gamma_clk_disable(struct device *dev); > +void mtk_gamma_config(struct device *dev, unsigned int w, > + unsigned int h, unsigned int vrefresh, > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); > +void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state); > +void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state); > +void mtk_gamma_start(struct device *dev); > +void mtk_gamma_stop(struct device *dev); > + > void mtk_ovl_bgclr_in_on(struct device *dev); > void mtk_ovl_bgclr_in_off(struct device *dev); > void mtk_ovl_bypass_shadow(struct device *dev); > 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 0000000000000..b5a499d7e472c > --- /dev/null > +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c > @@ -0,0 +1,188 @@ > +/* > + * 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_disp_drv.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 clk *clk; > + void __iomem *regs; > + struct cmdq_client_reg cmdq_reg; > + const struct mtk_disp_gamma_data *data; > +}; > + > +int mtk_gamma_clk_enable(struct device *dev) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + > + return clk_prepare_enable(gamma->clk); > +} > + > +void mtk_gamma_clk_disable(struct device *dev) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + > + clk_disable_unprepare(gamma->clk); > +} > + > +void mtk_gamma_set_common(void __iomem *regs, 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(regs + DISP_GAMMA_CFG); > + reg = reg | GAMMA_LUT_EN; > + writel(reg, regs + DISP_GAMMA_CFG); > + lut_base = 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)); > + } > + } > +} > + > +void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + > + mtk_gamma_set_common(gamma->regs, state); > +} > + > +void mtk_gamma_config(struct device *dev, unsigned int w, > + unsigned int h, unsigned int vrefresh, > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + > + mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs, > + DISP_GAMMA_SIZE); > + mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, DISP_GAMMA_CFG, cmdq_pkt); > +} > + > +void mtk_gamma_start(struct device *dev) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + > + writel(GAMMA_EN, gamma->regs + DISP_GAMMA_EN); > +} > + > +void mtk_gamma_stop(struct device *dev) > +{ > + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); > + > + writel_relaxed(0x0, gamma->regs + DISP_GAMMA_EN); > +} > + > +static int mtk_disp_gamma_bind(struct device *dev, struct device *master, > + void *data) > +{ > + return 0; > +} > + > +static void mtk_disp_gamma_unbind(struct device *dev, struct device *master, > + void *data) > +{ > +} > + > +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; > + struct resource *res; > + int ret; > + > + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); > + if (!priv) > + return -ENOMEM; > + > + priv->clk = devm_clk_get(dev, NULL); > + if (IS_ERR(priv->clk)) { > + dev_err(dev, "failed to get gamma clk\n"); > + return PTR_ERR(priv->clk); > + } > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + priv->regs = devm_ioremap_resource(dev, res); > + if (IS_ERR(priv->regs)) { > + dev_err(dev, "failed to ioremap gamma\n"); > + return PTR_ERR(priv->regs); > + } > + > +#if IS_REACHABLE(CONFIG_MTK_CMDQ) > + ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0); > + if (ret) > + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); > +#endif > + > + 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 53d25823a37cc..8173f709272be 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) > @@ -151,7 +143,6 @@ static void mtk_ddp_clk_disable(struct device *dev) > clk_disable_unprepare(priv->clk); > } > > - > void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg, > unsigned int bpc, unsigned int CFG, struct cmdq_pkt *cmdq_pkt) > { > @@ -219,6 +210,13 @@ static void mtk_aal_config(struct device *dev, unsigned int w, > mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_AAL_SIZE); > } > > +static void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state) > +{ > + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > + > + mtk_gamma_set_common(priv->regs, state); > +} > + > static void mtk_aal_start(struct device *dev) > { > struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > @@ -333,58 +331,10 @@ static void mtk_dither_stop(struct device *dev) > writel_relaxed(0x0, priv->regs + DISP_DITHER_EN); > } > > -static void mtk_gamma_config(struct device *dev, unsigned int w, > - unsigned int h, unsigned int vrefresh, > - unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > -{ > - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > - > - mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_GAMMA_SIZE); > - mtk_dither_set(dev, bpc, DISP_GAMMA_CFG, cmdq_pkt); > -} > - > -static void mtk_gamma_start(struct device *dev) > -{ > - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > - > - writel(GAMMA_EN, priv->regs + DISP_GAMMA_EN); > -} > - > -static void mtk_gamma_stop(struct device *dev) > -{ > - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > - > - writel_relaxed(0x0, priv->regs + DISP_GAMMA_EN); > -} > - > -static void mtk_gamma_set(struct device *dev, > - struct drm_crtc_state *state) > -{ > - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); > - unsigned int i, reg; > - struct drm_color_lut *lut; > - void __iomem *lut_base; > - u32 word; > - > - if (state->gamma_lut) { > - reg = readl(priv->regs + DISP_GAMMA_CFG); > - reg = reg | GAMMA_LUT_EN; > - writel(reg, priv->regs + DISP_GAMMA_CFG); > - lut_base = priv->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 = { > .clk_enable = mtk_ddp_clk_enable, > .clk_disable = mtk_ddp_clk_disable, > - .gamma_set = mtk_gamma_set, > + .gamma_set = mtk_aal_gamma_set, > .config = mtk_aal_config, > .start = mtk_aal_start, > .stop = mtk_aal_stop, > @@ -425,8 +375,8 @@ static const struct mtk_ddp_comp_funcs ddp_dsi = { > }; > > static const struct mtk_ddp_comp_funcs ddp_gamma = { > - .clk_enable = mtk_ddp_clk_enable, > - .clk_disable = mtk_ddp_clk_disable, > + .clk_enable = mtk_gamma_clk_enable, > + .clk_disable = mtk_gamma_clk_disable, > .gamma_set = mtk_gamma_set, > .config = mtk_gamma_config, > .start = mtk_gamma_start, > @@ -642,6 +592,7 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp, > > if (type == MTK_DISP_BLS || > type == MTK_DISP_COLOR || > + type == MTK_DISP_GAMMA || > type == MTK_DPI || > type == MTK_DSI || > type == MTK_DISP_OVL || > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > index 5d39dd54255d1..279d3e6f11563 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > @@ -486,11 +486,12 @@ 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 || > @@ -589,6 +590,7 @@ static struct platform_driver mtk_drm_platform_driver = { > > static struct platform_driver * const mtk_drm_drivers[] = { > &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 e8238fa4aa2ac..0e54e3d51014a 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h > @@ -47,6 +47,7 @@ struct mtk_drm_private { > }; > > 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;
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index 01d06332f7679..b64674b944860 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_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index c50d5fc9fd349..c1e658b490b6c 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -27,6 +27,16 @@ void mtk_dpi_stop(struct device *dev); void mtk_dsi_ddp_start(struct device *dev); void mtk_dsi_ddp_stop(struct device *dev); +int mtk_gamma_clk_enable(struct device *dev); +void mtk_gamma_clk_disable(struct device *dev); +void mtk_gamma_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); +void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state); +void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state); +void mtk_gamma_start(struct device *dev); +void mtk_gamma_stop(struct device *dev); + void mtk_ovl_bgclr_in_on(struct device *dev); void mtk_ovl_bgclr_in_off(struct device *dev); void mtk_ovl_bypass_shadow(struct device *dev); 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 0000000000000..b5a499d7e472c --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -0,0 +1,188 @@ +/* + * 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_disp_drv.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 clk *clk; + void __iomem *regs; + struct cmdq_client_reg cmdq_reg; + const struct mtk_disp_gamma_data *data; +}; + +int mtk_gamma_clk_enable(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + return clk_prepare_enable(gamma->clk); +} + +void mtk_gamma_clk_disable(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + clk_disable_unprepare(gamma->clk); +} + +void mtk_gamma_set_common(void __iomem *regs, 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(regs + DISP_GAMMA_CFG); + reg = reg | GAMMA_LUT_EN; + writel(reg, regs + DISP_GAMMA_CFG); + lut_base = 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)); + } + } +} + +void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + mtk_gamma_set_common(gamma->regs, state); +} + +void mtk_gamma_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs, + DISP_GAMMA_SIZE); + mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, DISP_GAMMA_CFG, cmdq_pkt); +} + +void mtk_gamma_start(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + writel(GAMMA_EN, gamma->regs + DISP_GAMMA_EN); +} + +void mtk_gamma_stop(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + writel_relaxed(0x0, gamma->regs + DISP_GAMMA_EN); +} + +static int mtk_disp_gamma_bind(struct device *dev, struct device *master, + void *data) +{ + return 0; +} + +static void mtk_disp_gamma_unbind(struct device *dev, struct device *master, + void *data) +{ +} + +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; + struct resource *res; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->clk = devm_clk_get(dev, NULL); + if (IS_ERR(priv->clk)) { + dev_err(dev, "failed to get gamma clk\n"); + return PTR_ERR(priv->clk); + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->regs)) { + dev_err(dev, "failed to ioremap gamma\n"); + return PTR_ERR(priv->regs); + } + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0); + if (ret) + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); +#endif + + 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 53d25823a37cc..8173f709272be 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) @@ -151,7 +143,6 @@ static void mtk_ddp_clk_disable(struct device *dev) clk_disable_unprepare(priv->clk); } - void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg, unsigned int bpc, unsigned int CFG, struct cmdq_pkt *cmdq_pkt) { @@ -219,6 +210,13 @@ static void mtk_aal_config(struct device *dev, unsigned int w, mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_AAL_SIZE); } +static void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state) +{ + struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); + + mtk_gamma_set_common(priv->regs, state); +} + static void mtk_aal_start(struct device *dev) { struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); @@ -333,58 +331,10 @@ static void mtk_dither_stop(struct device *dev) writel_relaxed(0x0, priv->regs + DISP_DITHER_EN); } -static void mtk_gamma_config(struct device *dev, unsigned int w, - unsigned int h, unsigned int vrefresh, - unsigned int bpc, struct cmdq_pkt *cmdq_pkt) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_GAMMA_SIZE); - mtk_dither_set(dev, bpc, DISP_GAMMA_CFG, cmdq_pkt); -} - -static void mtk_gamma_start(struct device *dev) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - writel(GAMMA_EN, priv->regs + DISP_GAMMA_EN); -} - -static void mtk_gamma_stop(struct device *dev) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - - writel_relaxed(0x0, priv->regs + DISP_GAMMA_EN); -} - -static void mtk_gamma_set(struct device *dev, - struct drm_crtc_state *state) -{ - struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev); - unsigned int i, reg; - struct drm_color_lut *lut; - void __iomem *lut_base; - u32 word; - - if (state->gamma_lut) { - reg = readl(priv->regs + DISP_GAMMA_CFG); - reg = reg | GAMMA_LUT_EN; - writel(reg, priv->regs + DISP_GAMMA_CFG); - lut_base = priv->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 = { .clk_enable = mtk_ddp_clk_enable, .clk_disable = mtk_ddp_clk_disable, - .gamma_set = mtk_gamma_set, + .gamma_set = mtk_aal_gamma_set, .config = mtk_aal_config, .start = mtk_aal_start, .stop = mtk_aal_stop, @@ -425,8 +375,8 @@ static const struct mtk_ddp_comp_funcs ddp_dsi = { }; static const struct mtk_ddp_comp_funcs ddp_gamma = { - .clk_enable = mtk_ddp_clk_enable, - .clk_disable = mtk_ddp_clk_disable, + .clk_enable = mtk_gamma_clk_enable, + .clk_disable = mtk_gamma_clk_disable, .gamma_set = mtk_gamma_set, .config = mtk_gamma_config, .start = mtk_gamma_start, @@ -642,6 +592,7 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp, if (type == MTK_DISP_BLS || type == MTK_DISP_COLOR || + type == MTK_DISP_GAMMA || type == MTK_DPI || type == MTK_DSI || type == MTK_DISP_OVL || diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 5d39dd54255d1..279d3e6f11563 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -486,11 +486,12 @@ 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 || @@ -589,6 +590,7 @@ static struct platform_driver mtk_drm_platform_driver = { static struct platform_driver * const mtk_drm_drivers[] = { &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 e8238fa4aa2ac..0e54e3d51014a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -47,6 +47,7 @@ struct mtk_drm_private { }; 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;