[PATCH v4 5/8] drm/mediatek: separate ccorr module

Hsin-Yi Wang
2021-01-29T07:38:08Z

ccorr ctm matrix bits will be different in mt8192

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
---
drivers/gpu/drm/mediatek/Makefile | 3 +-
drivers/gpu/drm/mediatek/mtk_disp_ccorr.c | 222 ++++++++++++++++++++
drivers/gpu/drm/mediatek/mtk_disp_drv.h | 9 +
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 95 +--------
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 8 +-
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 +
6 files changed, 242 insertions(+), 96 deletions(-)
create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_ccorr.c

diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index 13a0eafabf9c0..f119bef6d6e66 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 \
+mediatek-drm-y := mtk_disp_ccorr.o \
+ mtk_disp_color.o \
mtk_disp_gamma.o \
mtk_disp_ovl.o \
mtk_disp_postmask.o \
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
new file mode 100644
index 0000000000000..0c68090eb1e92
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
@@ -0,0 +1,222 @@
+/*
+ * SPDX-License-Identifier:
+ *
+ * Copyright (c) 2020 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.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_CCORR_EN 0x0000
+#define CCORR_EN BIT(0)
+#define DISP_CCORR_CFG 0x0020
+#define CCORR_RELAY_MODE BIT(0)
+#define CCORR_ENGINE_EN BIT(1)
+#define CCORR_GAMMA_OFF BIT(2)
+#define CCORR_WGAMUT_SRC_CLIP BIT(3)
+#define DISP_CCORR_SIZE 0x0030
+#define DISP_CCORR_COEF_0 0x0080
+#define DISP_CCORR_COEF_1 0x0084
+#define DISP_CCORR_COEF_2 0x0088
+#define DISP_CCORR_COEF_3 0x008C
+#define DISP_CCORR_COEF_4 0x0090
+
+struct mtk_disp_ccorr_data {
+ u32 reserved;
+};
+
+/**
+ * struct mtk_disp_ccorr - DISP_CCORR driver structure
+ * @ddp_comp - structure containing type enum and hardware resources
+ * @crtc - associated crtc to report irq events to
+ */
+struct mtk_disp_ccorr {
+ struct clk *clk;
+ void __iomem *regs;
+ struct cmdq_client_reg cmdq_reg;
+ const struct mtk_disp_ccorr_data *data;
+};
+
+int mtk_ccorr_clk_enable(struct device *dev)
+{
+ struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+ return clk_prepare_enable(ccorr->clk);
+}
+
+void mtk_ccorr_clk_disable(struct device *dev)
+{
+ struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(ccorr->clk);
+}
+
+void mtk_ccorr_config(struct device *dev, unsigned int w,
+ unsigned int h, unsigned int vrefresh,
+ unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+ struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+ mtk_ddp_write(cmdq_pkt, w << 16 | h, &ccorr->cmdq_reg, ccorr->regs,
+ DISP_CCORR_SIZE);
+ mtk_ddp_write(cmdq_pkt, CCORR_ENGINE_EN, &ccorr->cmdq_reg, ccorr->regs,
+ DISP_CCORR_CFG);
+}
+
+void mtk_ccorr_start(struct device *dev)
+{
+ struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+ writel(CCORR_EN, ccorr->regs + DISP_CCORR_EN);
+}
+
+void mtk_ccorr_stop(struct device *dev)
+{
+ struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+ writel_relaxed(0x0, ccorr->regs + DISP_CCORR_EN);
+}
+
+/* Converts a DRM S31.32 value to the HW S1.10 format. */
+static u16 mtk_ctm_s31_32_to_s1_10(u64 in)
+{
+ u16 r;
+
+ /* Sign bit. */
+ r = in & BIT_ULL(63) ? BIT(11) : 0;
+
+ if ((in & GENMASK_ULL(62, 33)) > 0) {
+ /* identity value 0x100000000 -> 0x400, */
+ /* if bigger this, set it to max 0x7ff. */
+ r |= GENMASK(10, 0);
+ } else {
+ /* take the 11 most important bits. */
+ r |= (in >> 22) & GENMASK(10, 0);
+ }
+
+ return r;
+}
+
+void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state)
+{
+ struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+ struct drm_property_blob *blob = state->ctm;
+ struct drm_color_ctm *ctm;
+ const u64 *input;
+ uint16_t coeffs[9] = { 0 };
+ int i;
+ struct cmdq_pkt *cmdq_pkt = NULL;
+
+ if (!blob)
+ return;
+
+ ctm = (struct drm_color_ctm *)blob->data;
+ input = ctm->matrix;
+
+ for (i = 0; i < ARRAY_SIZE(coeffs); i++)
+ coeffs[i] = mtk_ctm_s31_32_to_s1_10(input[i]);
+
+ mtk_ddp_write(cmdq_pkt, coeffs[0] << 16 | coeffs[1],
+ &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_0);
+ mtk_ddp_write(cmdq_pkt, coeffs[2] << 16 | coeffs[3],
+ &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_1);
+ mtk_ddp_write(cmdq_pkt, coeffs[4] << 16 | coeffs[5],
+ &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_2);
+ mtk_ddp_write(cmdq_pkt, coeffs[6] << 16 | coeffs[7],
+ &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_3);
+ mtk_ddp_write(cmdq_pkt, coeffs[8] << 16,
+ &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_4);
+}
+
+static int mtk_disp_ccorr_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ return 0;
+}
+
+static void mtk_disp_ccorr_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+}
+
+static const struct component_ops mtk_disp_ccorr_component_ops = {
+ .bind = mtk_disp_ccorr_bind,
+ .unbind = mtk_disp_ccorr_unbind,
+};
+
+static int mtk_disp_ccorr_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct mtk_disp_ccorr *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 ccorr 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 ccorr\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);
+
+ pm_runtime_enable(dev);
+
+ ret = component_add(dev, &mtk_disp_ccorr_component_ops);
+ if (ret)
+ dev_err(dev, "Failed to add component: %d\n", ret);
+
+ return ret;
+}
+
+static int mtk_disp_ccorr_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &mtk_disp_ccorr_component_ops);
+
+ pm_runtime_disable(&pdev->dev);
+
+ return 0;
+}
+
+static const struct of_device_id mtk_disp_ccorr_driver_dt_match[] = {
+ { .compatible = "mediatek,mt8183-disp-ccorr"},
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_ccorr_driver_dt_match);
+
+struct platform_driver mtk_disp_ccorr_driver = {
+ .probe = mtk_disp_ccorr_probe,
+ .remove = mtk_disp_ccorr_remove,
+ .driver = {
+ .name = "mediatek-disp-ccorr",
+ .owner = THIS_MODULE,
+ .of_match_table = mtk_disp_ccorr_driver_dt_match,
+ },
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index d74e85db3fcdf..8282497ed1391 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -9,6 +9,15 @@
#include <linux/soc/mediatek/mtk-cmdq.h>
#include "mtk_drm_plane.h"

+void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state);
+int mtk_ccorr_clk_enable(struct device *dev);
+void mtk_ccorr_clk_disable(struct device *dev);
+void mtk_ccorr_config(struct device *dev, unsigned int w,
+ unsigned int h, unsigned int vrefresh,
+ unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_ccorr_start(struct device *dev);
+void mtk_ccorr_stop(struct device *dev);
+
void mtk_color_bypass_shadow(struct device *dev);
int mtk_color_clk_enable(struct device *dev);
void mtk_color_clk_disable(struct device *dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 543cbfc9c5d85..6192c3ef926da 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -35,20 +35,6 @@
#define DISP_AAL_EN 0x0000
#define DISP_AAL_SIZE 0x0030

-#define DISP_CCORR_EN 0x0000
-#define CCORR_EN BIT(0)
-#define DISP_CCORR_CFG 0x0020
-#define CCORR_RELAY_MODE BIT(0)
-#define CCORR_ENGINE_EN BIT(1)
-#define CCORR_GAMMA_OFF BIT(2)
-#define CCORR_WGAMUT_SRC_CLIP BIT(3)
-#define DISP_CCORR_SIZE 0x0030
-#define DISP_CCORR_COEF_0 0x0080
-#define DISP_CCORR_COEF_1 0x0084
-#define DISP_CCORR_COEF_2 0x0088
-#define DISP_CCORR_COEF_3 0x008C
-#define DISP_CCORR_COEF_4 0x0090
-
#define DISP_DITHER_EN 0x0000
#define DITHER_EN BIT(0)
#define DISP_DITHER_CFG 0x0020
@@ -236,82 +222,6 @@ static void mtk_aal_stop(struct device *dev)
writel_relaxed(0x0, priv->regs + DISP_AAL_EN);
}

-static void mtk_ccorr_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_CCORR_SIZE);
- mtk_ddp_write(cmdq_pkt, CCORR_ENGINE_EN, &priv->cmdq_reg, priv->regs, DISP_CCORR_CFG);
-}
-
-static void mtk_ccorr_start(struct device *dev)
-{
- struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
-
- writel(CCORR_EN, priv->regs + DISP_CCORR_EN);
-}
-
-static void mtk_ccorr_stop(struct device *dev)
-{
- struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
-
- writel_relaxed(0x0, priv->regs + DISP_CCORR_EN);
-}
-
-/* Converts a DRM S31.32 value to the HW S1.10 format. */
-static u16 mtk_ctm_s31_32_to_s1_10(u64 in)
-{
- u16 r;
-
- /* Sign bit. */
- r = in & BIT_ULL(63) ? BIT(11) : 0;
-
- if ((in & GENMASK_ULL(62, 33)) > 0) {
- /* identity value 0x100000000 -> 0x400, */
- /* if bigger this, set it to max 0x7ff. */
- r |= GENMASK(10, 0);
- } else {
- /* take the 11 most important bits. */
- r |= (in >> 22) & GENMASK(10, 0);
- }
-
- return r;
-}
-
-static void mtk_ccorr_ctm_set(struct device *dev,
- struct drm_crtc_state *state)
-{
- struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
- struct drm_property_blob *blob = state->ctm;
- struct drm_color_ctm *ctm;
- const u64 *input;
- uint16_t coeffs[9] = { 0 };
- int i;
- struct cmdq_pkt *cmdq_pkt = NULL;
-
- if (!blob)
- return;
-
- ctm = (struct drm_color_ctm *)blob->data;
- input = ctm->matrix;
-
- for (i = 0; i < ARRAY_SIZE(coeffs); i++)
- coeffs[i] = mtk_ctm_s31_32_to_s1_10(input[i]);
-
- mtk_ddp_write(cmdq_pkt, coeffs[0] << 16 | coeffs[1],
- &priv->cmdq_reg, priv->regs, DISP_CCORR_COEF_0);
- mtk_ddp_write(cmdq_pkt, coeffs[2] << 16 | coeffs[3],
- &priv->cmdq_reg, priv->regs, DISP_CCORR_COEF_1);
- mtk_ddp_write(cmdq_pkt, coeffs[4] << 16 | coeffs[5],
- &priv->cmdq_reg, priv->regs, DISP_CCORR_COEF_2);
- mtk_ddp_write(cmdq_pkt, coeffs[6] << 16 | coeffs[7],
- &priv->cmdq_reg, priv->regs, DISP_CCORR_COEF_3);
- mtk_ddp_write(cmdq_pkt, coeffs[8] << 16,
- &priv->cmdq_reg, priv->regs, DISP_CCORR_COEF_4);
-}
-
static void mtk_dither_config(struct device *dev, unsigned int w,
unsigned int h, unsigned int vrefresh,
unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
@@ -350,8 +260,8 @@ static const struct mtk_ddp_comp_funcs ddp_aal = {
};

static const struct mtk_ddp_comp_funcs ddp_ccorr = {
- .clk_enable = mtk_ddp_clk_enable,
- .clk_disable = mtk_ddp_clk_disable,
+ .clk_enable = mtk_ccorr_clk_enable,
+ .clk_disable = mtk_ccorr_clk_disable,
.config = mtk_ccorr_config,
.start = mtk_ccorr_start,
.stop = mtk_ccorr_stop,
@@ -612,6 +522,7 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
}

if (type == MTK_DISP_BLS ||
+ type == MTK_DISP_CCORR ||
type == MTK_DISP_COLOR ||
type == MTK_DISP_GAMMA ||
type == MTK_DISP_POSTMASK ||
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index d99afc8528684..3da8996438dbc 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -531,11 +531,12 @@ static int mtk_drm_probe(struct platform_device *pdev)
private->comp_node[comp_id] = of_node_get(node);

/*
- * Currently only the COLOR, GAMMA, OVL, POSTMASK, RDMA, DSI, and DPI blocks have
- * separate component platform drivers and initialize their own
+ * Currently only the CCORR, COLOR, GAMMA, OVL, POSTMASK, 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 ||
+ if (comp_type == MTK_DISP_CCORR ||
+ comp_type == MTK_DISP_COLOR ||
comp_type == MTK_DISP_GAMMA ||
comp_type == MTK_DISP_OVL ||
comp_type == MTK_DISP_OVL_2L ||
@@ -635,6 +636,7 @@ static struct platform_driver mtk_drm_platform_driver = {
};

static struct platform_driver * const mtk_drm_drivers[] = {
+ &mtk_disp_ccorr_driver,
&mtk_disp_color_driver,
&mtk_disp_gamma_driver,
&mtk_disp_ovl_driver,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index 7e7b28e32aa2f..b49062364c3d2 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -46,6 +46,7 @@ struct mtk_drm_private {
struct drm_atomic_state *suspend_state;
};

+extern struct platform_driver mtk_disp_ccorr_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;
--
2.30.0.365.g02bc693789-goog