--- /dev/null
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ * Eunchul Kim <chulspro.kim@samsung.com>
+ * Jinyoung Jeon <jy0.jeon@samsung.com>
+ * Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/spinlock.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "regs-fimc.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_ipp.h"
+#include "exynos_drm_fimc.h"
+
+/*
+ * FIMC stands for Fully Interactive Mobile Camera and
+ * supports image scaler/rotator and input/output DMA operations.
+ * input DMA reads image data from the memory.
+ * output DMA writes image data to memory.
+ * FIMC supports image rotation and image effect functions.
+ *
+ * M2M operation : supports crop/scale/rotation/csc so on.
+ * Memory ----> FIMC H/W ----> Memory.
+ * Writeback operation : supports cloned screen with FIMD.
+ * FIMD ----> FIMC H/W ----> Memory.
+ * Output operation : supports direct display using local path.
+ * Memory ----> FIMC H/W ----> FIMD.
+ */
+
+/*
+ * TODO
+ * 1. check suspend/resume api if needed.
+ * 2. need to check use case platform_device_id.
+ * 3. check src/dst size with, height.
+ * 4. added check_prepare api for right register.
+ * 5. need to add supported list in prop_list.
+ * 6. check prescaler/scaler optimization.
+ */
+
+#define FIMC_MAX_DEVS 4
+#define FIMC_MAX_SRC 2
+#define FIMC_MAX_DST 32
+#define FIMC_SHFACTOR 10
+#define FIMC_BUF_STOP 1
+#define FIMC_BUF_START 2
+#define FIMC_WIDTH_ITU_709 1280
+#define FIMC_REFRESH_MAX 60
+#define FIMC_REFRESH_MIN 12
+#define FIMC_CROP_MAX 8192
+#define FIMC_CROP_MIN 32
+#define FIMC_SCALE_MAX 4224
+#define FIMC_SCALE_MIN 32
+
+#define get_fimc_context(dev) platform_get_drvdata(to_platform_device(dev))
+#define get_ctx_from_ippdrv(ippdrv) container_of(ippdrv,\
+ struct fimc_context, ippdrv);
+enum fimc_wb {
+ FIMC_WB_NONE,
+ FIMC_WB_A,
+ FIMC_WB_B,
+};
+
+enum {
+ FIMC_CLK_LCLK,
+ FIMC_CLK_GATE,
+ FIMC_CLK_WB_A,
+ FIMC_CLK_WB_B,
+ FIMC_CLK_MUX,
+ FIMC_CLK_PARENT,
+ FIMC_CLKS_MAX
+};
+
+static const char * const fimc_clock_names[] = {
+ [FIMC_CLK_LCLK] = "sclk_fimc",
+ [FIMC_CLK_GATE] = "fimc",
+ [FIMC_CLK_WB_A] = "pxl_async0",
+ [FIMC_CLK_WB_B] = "pxl_async1",
+ [FIMC_CLK_MUX] = "mux",
+ [FIMC_CLK_PARENT] = "parent",
+};
+
+#define FIMC_DEFAULT_LCLK_FREQUENCY 133000000UL
+
+/*
+ * A structure of scaler.
+ *
+ * @range: narrow, wide.
+ * @bypass: unused scaler path.
+ * @up_h: horizontal scale up.
+ * @up_v: vertical scale up.
+ * @hratio: horizontal ratio.
+ * @vratio: vertical ratio.
+ */
+struct fimc_scaler {
+ bool range;
+ bool bypass;
+ bool up_h;
+ bool up_v;
+ u32 hratio;
+ u32 vratio;
+};
+
+/*
+ * A structure of scaler capability.
+ *
+ * find user manual table 43-1.
+ * @in_hori: scaler input horizontal size.
+ * @bypass: scaler bypass mode.
+ * @dst_h_wo_rot: target horizontal size without output rotation.
+ * @dst_h_rot: target horizontal size with output rotation.
+ * @rl_w_wo_rot: real width without input rotation.
+ * @rl_h_rot: real height without output rotation.
+ */
+struct fimc_capability {
+ /* scaler */
+ u32 in_hori;
+ u32 bypass;
+ /* output rotator */
+ u32 dst_h_wo_rot;
+ u32 dst_h_rot;
+ /* input rotator */
+ u32 rl_w_wo_rot;
+ u32 rl_h_rot;
+};
+
+/*
+ * A structure of fimc context.
+ *
+ * @ippdrv: prepare initialization using ippdrv.
+ * @regs_res: register resources.
+ * @regs: memory mapped io registers.
+ * @lock: locking of operations.
+ * @clocks: fimc clocks.
+ * @clk_frequency: LCLK clock frequency.
+ * @sysreg: handle to SYSREG block regmap.
+ * @sc: scaler infomations.
+ * @pol: porarity of writeback.
+ * @id: fimc id.
+ * @irq: irq number.
+ * @suspended: qos operations.
+ */
+struct fimc_context {
+ struct exynos_drm_ippdrv ippdrv;
+ struct resource *regs_res;
+ void __iomem *regs;
+ spinlock_t lock;
+ struct clk *clocks[FIMC_CLKS_MAX];
+ u32 clk_frequency;
+ struct regmap *sysreg;
+ struct fimc_scaler sc;
+ struct exynos_drm_ipp_pol pol;
+ int id;
+ int irq;
+ bool suspended;
+};
+
+static u32 fimc_read(struct fimc_context *ctx, u32 reg)
+{
+ return readl(ctx->regs + reg);
+}
+
+static void fimc_write(struct fimc_context *ctx, u32 val, u32 reg)
+{
+ writel(val, ctx->regs + reg);
+}
+
+static void fimc_set_bits(struct fimc_context *ctx, u32 reg, u32 bits)
+{
+ void __iomem *r = ctx->regs + reg;
+
+ writel(readl(r) | bits, r);
+}
+
+static void fimc_clear_bits(struct fimc_context *ctx, u32 reg, u32 bits)
+{
+ void __iomem *r = ctx->regs + reg;
+
+ writel(readl(r) & ~bits, r);
+}
+
+static void fimc_sw_reset(struct fimc_context *ctx)
+{
+ u32 cfg;
+
+ /* stop dma operation */
+ cfg = fimc_read(ctx, EXYNOS_CISTATUS);
+ if (EXYNOS_CISTATUS_GET_ENVID_STATUS(cfg))
+ fimc_clear_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
+
+ fimc_set_bits(ctx, EXYNOS_CISRCFMT, EXYNOS_CISRCFMT_ITU601_8BIT);
+
+ /* disable image capture */
+ fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
+ EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
+
+ /* s/w reset */
+ fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
+
+ /* s/w reset complete */
+ fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_SWRST);
+
+ /* reset sequence */
+ fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
+}
+
+static int fimc_set_camblk_fimd0_wb(struct fimc_context *ctx)
+{
+ return regmap_update_bits(ctx->sysreg, SYSREG_CAMERA_BLK,
+ SYSREG_FIMD0WB_DEST_MASK,
+ ctx->id << SYSREG_FIMD0WB_DEST_SHIFT);
+}
+
+static void fimc_set_type_ctrl(struct fimc_context *ctx, enum fimc_wb wb)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("wb[%d]\n", wb);
+
+ cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+ cfg &= ~(EXYNOS_CIGCTRL_TESTPATTERN_MASK |
+ EXYNOS_CIGCTRL_SELCAM_ITU_MASK |
+ EXYNOS_CIGCTRL_SELCAM_MIPI_MASK |
+ EXYNOS_CIGCTRL_SELCAM_FIMC_MASK |
+ EXYNOS_CIGCTRL_SELWB_CAMIF_MASK |
+ EXYNOS_CIGCTRL_SELWRITEBACK_MASK);
+
+ switch (wb) {
+ case FIMC_WB_A:
+ cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_A |
+ EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
+ break;
+ case FIMC_WB_B:
+ cfg |= (EXYNOS_CIGCTRL_SELWRITEBACK_B |
+ EXYNOS_CIGCTRL_SELWB_CAMIF_WRITEBACK);
+ break;
+ case FIMC_WB_NONE:
+ default:
+ cfg |= (EXYNOS_CIGCTRL_SELCAM_ITU_A |
+ EXYNOS_CIGCTRL_SELWRITEBACK_A |
+ EXYNOS_CIGCTRL_SELCAM_MIPI_A |
+ EXYNOS_CIGCTRL_SELCAM_FIMC_ITU);
+ break;
+ }
+
+ fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_set_polarity(struct fimc_context *ctx,
+ struct exynos_drm_ipp_pol *pol)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("inv_pclk[%d]inv_vsync[%d]\n",
+ pol->inv_pclk, pol->inv_vsync);
+ DRM_DEBUG_KMS("inv_href[%d]inv_hsync[%d]\n",
+ pol->inv_href, pol->inv_hsync);
+
+ cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+ cfg &= ~(EXYNOS_CIGCTRL_INVPOLPCLK | EXYNOS_CIGCTRL_INVPOLVSYNC |
+ EXYNOS_CIGCTRL_INVPOLHREF | EXYNOS_CIGCTRL_INVPOLHSYNC);
+
+ if (pol->inv_pclk)
+ cfg |= EXYNOS_CIGCTRL_INVPOLPCLK;
+ if (pol->inv_vsync)
+ cfg |= EXYNOS_CIGCTRL_INVPOLVSYNC;
+ if (pol->inv_href)
+ cfg |= EXYNOS_CIGCTRL_INVPOLHREF;
+ if (pol->inv_hsync)
+ cfg |= EXYNOS_CIGCTRL_INVPOLHSYNC;
+
+ fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_handle_jpeg(struct fimc_context *ctx, bool enable)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+ cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+ if (enable)
+ cfg |= EXYNOS_CIGCTRL_CAM_JPEG;
+ else
+ cfg &= ~EXYNOS_CIGCTRL_CAM_JPEG;
+
+ fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_mask_irq(struct fimc_context *ctx, bool enable)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+ cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+ if (enable) {
+ cfg &= ~EXYNOS_CIGCTRL_IRQ_OVFEN;
+ cfg |= EXYNOS_CIGCTRL_IRQ_ENABLE | EXYNOS_CIGCTRL_IRQ_LEVEL;
+ } else
+ cfg &= ~EXYNOS_CIGCTRL_IRQ_ENABLE;
+ fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+}
+
+static void fimc_clear_irq(struct fimc_context *ctx)
+{
+ fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_CLR);
+}
+
+static bool fimc_check_ovf(struct fimc_context *ctx)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 status, flag;
+
+ status = fimc_read(ctx, EXYNOS_CISTATUS);
+ flag = EXYNOS_CISTATUS_OVFIY | EXYNOS_CISTATUS_OVFICB |
+ EXYNOS_CISTATUS_OVFICR;
+
+ DRM_DEBUG_KMS("flag[0x%x]\n", flag);
+
+ if (status & flag) {
+ fimc_set_bits(ctx, EXYNOS_CIWDOFST,
+ EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
+ EXYNOS_CIWDOFST_CLROVFICR);
+
+ dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
+ ctx->id, status);
+ return true;
+ }
+
+ return false;
+}
+
+static bool fimc_check_frame_end(struct fimc_context *ctx)
+{
+ u32 cfg;
+
+ cfg = fimc_read(ctx, EXYNOS_CISTATUS);
+
+ DRM_DEBUG_KMS("cfg[0x%x]\n", cfg);
+
+ if (!(cfg & EXYNOS_CISTATUS_FRAMEEND))
+ return false;
+
+ cfg &= ~(EXYNOS_CISTATUS_FRAMEEND);
+ fimc_write(ctx, cfg, EXYNOS_CISTATUS);
+
+ return true;
+}
+
+static int fimc_get_buf_id(struct fimc_context *ctx)
+{
+ u32 cfg;
+ int frame_cnt, buf_id;
+
+ cfg = fimc_read(ctx, EXYNOS_CISTATUS2);
+ frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg);
+
+ if (frame_cnt == 0)
+ frame_cnt = EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg);
+
+ DRM_DEBUG_KMS("present[%d]before[%d]\n",
+ EXYNOS_CISTATUS2_GET_FRAMECOUNT_PRESENT(cfg),
+ EXYNOS_CISTATUS2_GET_FRAMECOUNT_BEFORE(cfg));
+
+ if (frame_cnt == 0) {
+ DRM_ERROR("failed to get frame count.\n");
+ return -EIO;
+ }
+
+ buf_id = frame_cnt - 1;
+ DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
+
+ return buf_id;
+}
+
+static void fimc_handle_lastend(struct fimc_context *ctx, bool enable)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+ cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
+ if (enable)
+ cfg |= EXYNOS_CIOCTRL_LASTENDEN;
+ else
+ cfg &= ~EXYNOS_CIOCTRL_LASTENDEN;
+
+ fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
+}
+
+
+static int fimc_src_set_fmt_order(struct fimc_context *ctx, u32 fmt)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+ /* RGB */
+ cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
+ cfg &= ~EXYNOS_CISCCTRL_INRGB_FMT_RGB_MASK;
+
+ switch (fmt) {
+ case DRM_FORMAT_RGB565:
+ cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB565;
+ fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+ return 0;
+ case DRM_FORMAT_RGB888:
+ case DRM_FORMAT_XRGB8888:
+ cfg |= EXYNOS_CISCCTRL_INRGB_FMT_RGB888;
+ fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+ return 0;
+ default:
+ /* bypass */
+ break;
+ }
+
+ /* YUV */
+ cfg = fimc_read(ctx, EXYNOS_MSCTRL);
+ cfg &= ~(EXYNOS_MSCTRL_ORDER2P_SHIFT_MASK |
+ EXYNOS_MSCTRL_C_INT_IN_2PLANE |
+ EXYNOS_MSCTRL_ORDER422_YCBYCR);
+
+ switch (fmt) {
+ case DRM_FORMAT_YUYV:
+ cfg |= EXYNOS_MSCTRL_ORDER422_YCBYCR;
+ break;
+ case DRM_FORMAT_YVYU:
+ cfg |= EXYNOS_MSCTRL_ORDER422_YCRYCB;
+ break;
+ case DRM_FORMAT_UYVY:
+ cfg |= EXYNOS_MSCTRL_ORDER422_CBYCRY;
+ break;
+ case DRM_FORMAT_VYUY:
+ case DRM_FORMAT_YUV444:
+ cfg |= EXYNOS_MSCTRL_ORDER422_CRYCBY;
+ break;
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV61:
+ cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CRCB |
+ EXYNOS_MSCTRL_C_INT_IN_2PLANE);
+ break;
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ cfg |= EXYNOS_MSCTRL_C_INT_IN_3PLANE;
+ break;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV16:
+ cfg |= (EXYNOS_MSCTRL_ORDER2P_LSB_CBCR |
+ EXYNOS_MSCTRL_C_INT_IN_2PLANE);
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid source yuv order 0x%x.\n", fmt);
+ return -EINVAL;
+ }
+
+ fimc_write(ctx, cfg, EXYNOS_MSCTRL);
+
+ return 0;
+}
+
+static int fimc_src_set_fmt(struct device *dev, u32 fmt)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+ cfg = fimc_read(ctx, EXYNOS_MSCTRL);
+ cfg &= ~EXYNOS_MSCTRL_INFORMAT_RGB;
+
+ switch (fmt) {
+ case DRM_FORMAT_RGB565:
+ case DRM_FORMAT_RGB888:
+ case DRM_FORMAT_XRGB8888:
+ cfg |= EXYNOS_MSCTRL_INFORMAT_RGB;
+ break;
+ case DRM_FORMAT_YUV444:
+ cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
+ break;
+ case DRM_FORMAT_YUYV:
+ case DRM_FORMAT_YVYU:
+ case DRM_FORMAT_UYVY:
+ case DRM_FORMAT_VYUY:
+ cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422_1PLANE;
+ break;
+ case DRM_FORMAT_NV16:
+ case DRM_FORMAT_NV61:
+ case DRM_FORMAT_YUV422:
+ cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR422;
+ break;
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ cfg |= EXYNOS_MSCTRL_INFORMAT_YCBCR420;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid source format 0x%x.\n", fmt);
+ return -EINVAL;
+ }
+
+ fimc_write(ctx, cfg, EXYNOS_MSCTRL);
+
+ cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
+ cfg &= ~EXYNOS_CIDMAPARAM_R_MODE_MASK;
+
+ cfg |= EXYNOS_CIDMAPARAM_R_MODE_LINEAR;
+
+ fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
+
+ return fimc_src_set_fmt_order(ctx, fmt);
+}
+
+static int fimc_src_set_transf(struct device *dev,
+ enum drm_exynos_degree degree,
+ enum drm_exynos_flip flip, bool *swap)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg1, cfg2;
+
+ DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
+
+ cfg1 = fimc_read(ctx, EXYNOS_MSCTRL);
+ cfg1 &= ~(EXYNOS_MSCTRL_FLIP_X_MIRROR |
+ EXYNOS_MSCTRL_FLIP_Y_MIRROR);
+
+ cfg2 = fimc_read(ctx, EXYNOS_CITRGFMT);
+ cfg2 &= ~EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
+
+ switch (degree) {
+ case EXYNOS_DRM_DEGREE_0:
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+ break;
+ case EXYNOS_DRM_DEGREE_90:
+ cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg1 |= EXYNOS_MSCTRL_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg1 |= EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+ break;
+ case EXYNOS_DRM_DEGREE_180:
+ cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
+ EXYNOS_MSCTRL_FLIP_Y_MIRROR);
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+ break;
+ case EXYNOS_DRM_DEGREE_270:
+ cfg1 |= (EXYNOS_MSCTRL_FLIP_X_MIRROR |
+ EXYNOS_MSCTRL_FLIP_Y_MIRROR);
+ cfg2 |= EXYNOS_CITRGFMT_INROT90_CLOCKWISE;
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg1 &= ~EXYNOS_MSCTRL_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg1 &= ~EXYNOS_MSCTRL_FLIP_Y_MIRROR;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+ return -EINVAL;
+ }
+
+ fimc_write(ctx, cfg1, EXYNOS_MSCTRL);
+ fimc_write(ctx, cfg2, EXYNOS_CITRGFMT);
+ *swap = (cfg2 & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) ? 1 : 0;
+
+ return 0;
+}
+
+static int fimc_set_window(struct fimc_context *ctx,
+ struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+ u32 cfg, h1, h2, v1, v2;
+
+ /* cropped image */
+ h1 = pos->x;
+ h2 = sz->hsize - pos->w - pos->x;
+ v1 = pos->y;
+ v2 = sz->vsize - pos->h - pos->y;
+
+ DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
+ pos->x, pos->y, pos->w, pos->h, sz->hsize, sz->vsize);
+ DRM_DEBUG_KMS("h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1, v2);
+
+ /*
+ * set window offset 1, 2 size
+ * check figure 43-21 in user manual
+ */
+ cfg = fimc_read(ctx, EXYNOS_CIWDOFST);
+ cfg &= ~(EXYNOS_CIWDOFST_WINHOROFST_MASK |
+ EXYNOS_CIWDOFST_WINVEROFST_MASK);
+ cfg |= (EXYNOS_CIWDOFST_WINHOROFST(h1) |
+ EXYNOS_CIWDOFST_WINVEROFST(v1));
+ cfg |= EXYNOS_CIWDOFST_WINOFSEN;
+ fimc_write(ctx, cfg, EXYNOS_CIWDOFST);
+
+ cfg = (EXYNOS_CIWDOFST2_WINHOROFST2(h2) |
+ EXYNOS_CIWDOFST2_WINVEROFST2(v2));
+ fimc_write(ctx, cfg, EXYNOS_CIWDOFST2);
+
+ return 0;
+}
+
+static int fimc_src_set_size(struct device *dev, int swap,
+ struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct drm_exynos_pos img_pos = *pos;
+ struct drm_exynos_sz img_sz = *sz;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
+ swap, sz->hsize, sz->vsize);
+
+ /* original size */
+ cfg = (EXYNOS_ORGISIZE_HORIZONTAL(img_sz.hsize) |
+ EXYNOS_ORGISIZE_VERTICAL(img_sz.vsize));
+
+ fimc_write(ctx, cfg, EXYNOS_ORGISIZE);
+
+ DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
+
+ if (swap) {
+ img_pos.w = pos->h;
+ img_pos.h = pos->w;
+ img_sz.hsize = sz->vsize;
+ img_sz.vsize = sz->hsize;
+ }
+
+ /* set input DMA image size */
+ cfg = fimc_read(ctx, EXYNOS_CIREAL_ISIZE);
+ cfg &= ~(EXYNOS_CIREAL_ISIZE_HEIGHT_MASK |
+ EXYNOS_CIREAL_ISIZE_WIDTH_MASK);
+ cfg |= (EXYNOS_CIREAL_ISIZE_WIDTH(img_pos.w) |
+ EXYNOS_CIREAL_ISIZE_HEIGHT(img_pos.h));
+ fimc_write(ctx, cfg, EXYNOS_CIREAL_ISIZE);
+
+ /*
+ * set input FIFO image size
+ * for now, we support only ITU601 8 bit mode
+ */
+ cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
+ EXYNOS_CISRCFMT_SOURCEHSIZE(img_sz.hsize) |
+ EXYNOS_CISRCFMT_SOURCEVSIZE(img_sz.vsize));
+ fimc_write(ctx, cfg, EXYNOS_CISRCFMT);
+
+ /* offset Y(RGB), Cb, Cr */
+ cfg = (EXYNOS_CIIYOFF_HORIZONTAL(img_pos.x) |
+ EXYNOS_CIIYOFF_VERTICAL(img_pos.y));
+ fimc_write(ctx, cfg, EXYNOS_CIIYOFF);
+ cfg = (EXYNOS_CIICBOFF_HORIZONTAL(img_pos.x) |
+ EXYNOS_CIICBOFF_VERTICAL(img_pos.y));
+ fimc_write(ctx, cfg, EXYNOS_CIICBOFF);
+ cfg = (EXYNOS_CIICROFF_HORIZONTAL(img_pos.x) |
+ EXYNOS_CIICROFF_VERTICAL(img_pos.y));
+ fimc_write(ctx, cfg, EXYNOS_CIICROFF);
+
+ return fimc_set_window(ctx, &img_pos, &img_sz);
+}
+
+static int fimc_src_set_addr(struct device *dev,
+ struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+ struct drm_exynos_ipp_property *property;
+ struct drm_exynos_ipp_config *config;
+
+ if (!c_node) {
+ DRM_ERROR("failed to get c_node.\n");
+ return -EINVAL;
+ }
+
+ property = &c_node->property;
+
+ DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
+ property->prop_id, buf_id, buf_type);
+
+ if (buf_id > FIMC_MAX_SRC) {
+ dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+ return -ENOMEM;
+ }
+
+ /* address register set */
+ switch (buf_type) {
+ case IPP_BUF_ENQUEUE:
+ config = &property->config[EXYNOS_DRM_OPS_SRC];
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
+ EXYNOS_CIIYSA0);
+
+ if (config->fmt == DRM_FORMAT_YVU420) {
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+ EXYNOS_CIICBSA0);
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+ EXYNOS_CIICRSA0);
+ } else {
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+ EXYNOS_CIICBSA0);
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+ EXYNOS_CIICRSA0);
+ }
+ break;
+ case IPP_BUF_DEQUEUE:
+ fimc_write(ctx, 0x0, EXYNOS_CIIYSA0);
+ fimc_write(ctx, 0x0, EXYNOS_CIICBSA0);
+ fimc_write(ctx, 0x0, EXYNOS_CIICRSA0);
+ break;
+ default:
+ /* bypass */
+ break;
+ }
+
+ return 0;
+}
+
+static struct exynos_drm_ipp_ops fimc_src_ops = {
+ .set_fmt = fimc_src_set_fmt,
+ .set_transf = fimc_src_set_transf,
+ .set_size = fimc_src_set_size,
+ .set_addr = fimc_src_set_addr,
+};
+
+static int fimc_dst_set_fmt_order(struct fimc_context *ctx, u32 fmt)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+ /* RGB */
+ cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
+ cfg &= ~EXYNOS_CISCCTRL_OUTRGB_FMT_RGB_MASK;
+
+ switch (fmt) {
+ case DRM_FORMAT_RGB565:
+ cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB565;
+ fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+ return 0;
+ case DRM_FORMAT_RGB888:
+ cfg |= EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888;
+ fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+ return 0;
+ case DRM_FORMAT_XRGB8888:
+ cfg |= (EXYNOS_CISCCTRL_OUTRGB_FMT_RGB888 |
+ EXYNOS_CISCCTRL_EXTRGB_EXTENSION);
+ fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+ break;
+ default:
+ /* bypass */
+ break;
+ }
+
+ /* YUV */
+ cfg = fimc_read(ctx, EXYNOS_CIOCTRL);
+ cfg &= ~(EXYNOS_CIOCTRL_ORDER2P_MASK |
+ EXYNOS_CIOCTRL_ORDER422_MASK |
+ EXYNOS_CIOCTRL_YCBCR_PLANE_MASK);
+
+ switch (fmt) {
+ case DRM_FORMAT_XRGB8888:
+ cfg |= EXYNOS_CIOCTRL_ALPHA_OUT;
+ break;
+ case DRM_FORMAT_YUYV:
+ cfg |= EXYNOS_CIOCTRL_ORDER422_YCBYCR;
+ break;
+ case DRM_FORMAT_YVYU:
+ cfg |= EXYNOS_CIOCTRL_ORDER422_YCRYCB;
+ break;
+ case DRM_FORMAT_UYVY:
+ cfg |= EXYNOS_CIOCTRL_ORDER422_CBYCRY;
+ break;
+ case DRM_FORMAT_VYUY:
+ cfg |= EXYNOS_CIOCTRL_ORDER422_CRYCBY;
+ break;
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV61:
+ cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CRCB;
+ cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
+ break;
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ cfg |= EXYNOS_CIOCTRL_YCBCR_3PLANE;
+ break;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV16:
+ cfg |= EXYNOS_CIOCTRL_ORDER2P_LSB_CBCR;
+ cfg |= EXYNOS_CIOCTRL_YCBCR_2PLANE;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
+ return -EINVAL;
+ }
+
+ fimc_write(ctx, cfg, EXYNOS_CIOCTRL);
+
+ return 0;
+}
+
+static int fimc_dst_set_fmt(struct device *dev, u32 fmt)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("fmt[0x%x]\n", fmt);
+
+ cfg = fimc_read(ctx, EXYNOS_CIEXTEN);
+
+ if (fmt == DRM_FORMAT_AYUV) {
+ cfg |= EXYNOS_CIEXTEN_YUV444_OUT;
+ fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
+ } else {
+ cfg &= ~EXYNOS_CIEXTEN_YUV444_OUT;
+ fimc_write(ctx, cfg, EXYNOS_CIEXTEN);
+
+ cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
+ cfg &= ~EXYNOS_CITRGFMT_OUTFORMAT_MASK;
+
+ switch (fmt) {
+ case DRM_FORMAT_RGB565:
+ case DRM_FORMAT_RGB888:
+ case DRM_FORMAT_XRGB8888:
+ cfg |= EXYNOS_CITRGFMT_OUTFORMAT_RGB;
+ break;
+ case DRM_FORMAT_YUYV:
+ case DRM_FORMAT_YVYU:
+ case DRM_FORMAT_UYVY:
+ case DRM_FORMAT_VYUY:
+ cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422_1PLANE;
+ break;
+ case DRM_FORMAT_NV16:
+ case DRM_FORMAT_NV61:
+ case DRM_FORMAT_YUV422:
+ cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR422;
+ break;
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV21:
+ cfg |= EXYNOS_CITRGFMT_OUTFORMAT_YCBCR420;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid target format 0x%x.\n",
+ fmt);
+ return -EINVAL;
+ }
+
+ fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
+ }
+
+ cfg = fimc_read(ctx, EXYNOS_CIDMAPARAM);
+ cfg &= ~EXYNOS_CIDMAPARAM_W_MODE_MASK;
+
+ cfg |= EXYNOS_CIDMAPARAM_W_MODE_LINEAR;
+
+ fimc_write(ctx, cfg, EXYNOS_CIDMAPARAM);
+
+ return fimc_dst_set_fmt_order(ctx, fmt);
+}
+
+static int fimc_dst_set_transf(struct device *dev,
+ enum drm_exynos_degree degree,
+ enum drm_exynos_flip flip, bool *swap)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("degree[%d]flip[0x%x]\n", degree, flip);
+
+ cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
+ cfg &= ~EXYNOS_CITRGFMT_FLIP_MASK;
+ cfg &= ~EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
+
+ switch (degree) {
+ case EXYNOS_DRM_DEGREE_0:
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+ break;
+ case EXYNOS_DRM_DEGREE_90:
+ cfg |= EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE;
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg |= EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg |= EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+ break;
+ case EXYNOS_DRM_DEGREE_180:
+ cfg |= (EXYNOS_CITRGFMT_FLIP_X_MIRROR |
+ EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+ break;
+ case EXYNOS_DRM_DEGREE_270:
+ cfg |= (EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE |
+ EXYNOS_CITRGFMT_FLIP_X_MIRROR |
+ EXYNOS_CITRGFMT_FLIP_Y_MIRROR);
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg &= ~EXYNOS_CITRGFMT_FLIP_X_MIRROR;
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg &= ~EXYNOS_CITRGFMT_FLIP_Y_MIRROR;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+ return -EINVAL;
+ }
+
+ fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
+ *swap = (cfg & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) ? 1 : 0;
+
+ return 0;
+}
+
+static int fimc_set_prescaler(struct fimc_context *ctx, struct fimc_scaler *sc,
+ struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg, cfg_ext, shfactor;
+ u32 pre_dst_width, pre_dst_height;
+ u32 hfactor, vfactor;
+ int ret = 0;
+ u32 src_w, src_h, dst_w, dst_h;
+
+ cfg_ext = fimc_read(ctx, EXYNOS_CITRGFMT);
+ if (cfg_ext & EXYNOS_CITRGFMT_INROT90_CLOCKWISE) {
+ src_w = src->h;
+ src_h = src->w;
+ } else {
+ src_w = src->w;
+ src_h = src->h;
+ }
+
+ if (cfg_ext & EXYNOS_CITRGFMT_OUTROT90_CLOCKWISE) {
+ dst_w = dst->h;
+ dst_h = dst->w;
+ } else {
+ dst_w = dst->w;
+ dst_h = dst->h;
+ }
+
+ /* fimc_ippdrv_check_property assures that dividers are not null */
+ hfactor = fls(src_w / dst_w / 2);
+ if (hfactor > FIMC_SHFACTOR / 2) {
+ dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
+ return -EINVAL;
+ }
+
+ vfactor = fls(src_h / dst_h / 2);
+ if (vfactor > FIMC_SHFACTOR / 2) {
+ dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
+ return -EINVAL;
+ }
+
+ pre_dst_width = src_w >> hfactor;
+ pre_dst_height = src_h >> vfactor;
+ DRM_DEBUG_KMS("pre_dst_width[%d]pre_dst_height[%d]\n",
+ pre_dst_width, pre_dst_height);
+ DRM_DEBUG_KMS("hfactor[%d]vfactor[%d]\n", hfactor, vfactor);
+
+ sc->hratio = (src_w << 14) / (dst_w << hfactor);
+ sc->vratio = (src_h << 14) / (dst_h << vfactor);
+ sc->up_h = (dst_w >= src_w) ? true : false;
+ sc->up_v = (dst_h >= src_h) ? true : false;
+ DRM_DEBUG_KMS("hratio[%d]vratio[%d]up_h[%d]up_v[%d]\n",
+ sc->hratio, sc->vratio, sc->up_h, sc->up_v);
+
+ shfactor = FIMC_SHFACTOR - (hfactor + vfactor);
+ DRM_DEBUG_KMS("shfactor[%d]\n", shfactor);
+
+ cfg = (EXYNOS_CISCPRERATIO_SHFACTOR(shfactor) |
+ EXYNOS_CISCPRERATIO_PREHORRATIO(1 << hfactor) |
+ EXYNOS_CISCPRERATIO_PREVERRATIO(1 << vfactor));
+ fimc_write(ctx, cfg, EXYNOS_CISCPRERATIO);
+
+ cfg = (EXYNOS_CISCPREDST_PREDSTWIDTH(pre_dst_width) |
+ EXYNOS_CISCPREDST_PREDSTHEIGHT(pre_dst_height));
+ fimc_write(ctx, cfg, EXYNOS_CISCPREDST);
+
+ return ret;
+}
+
+static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
+{
+ u32 cfg, cfg_ext;
+
+ DRM_DEBUG_KMS("range[%d]bypass[%d]up_h[%d]up_v[%d]\n",
+ sc->range, sc->bypass, sc->up_h, sc->up_v);
+ DRM_DEBUG_KMS("hratio[%d]vratio[%d]\n",
+ sc->hratio, sc->vratio);
+
+ cfg = fimc_read(ctx, EXYNOS_CISCCTRL);
+ cfg &= ~(EXYNOS_CISCCTRL_SCALERBYPASS |
+ EXYNOS_CISCCTRL_SCALEUP_H | EXYNOS_CISCCTRL_SCALEUP_V |
+ EXYNOS_CISCCTRL_MAIN_V_RATIO_MASK |
+ EXYNOS_CISCCTRL_MAIN_H_RATIO_MASK |
+ EXYNOS_CISCCTRL_CSCR2Y_WIDE |
+ EXYNOS_CISCCTRL_CSCY2R_WIDE);
+
+ if (sc->range)
+ cfg |= (EXYNOS_CISCCTRL_CSCR2Y_WIDE |
+ EXYNOS_CISCCTRL_CSCY2R_WIDE);
+ if (sc->bypass)
+ cfg |= EXYNOS_CISCCTRL_SCALERBYPASS;
+ if (sc->up_h)
+ cfg |= EXYNOS_CISCCTRL_SCALEUP_H;
+ if (sc->up_v)
+ cfg |= EXYNOS_CISCCTRL_SCALEUP_V;
+
+ cfg |= (EXYNOS_CISCCTRL_MAINHORRATIO((sc->hratio >> 6)) |
+ EXYNOS_CISCCTRL_MAINVERRATIO((sc->vratio >> 6)));
+ fimc_write(ctx, cfg, EXYNOS_CISCCTRL);
+
+ cfg_ext = fimc_read(ctx, EXYNOS_CIEXTEN);
+ cfg_ext &= ~EXYNOS_CIEXTEN_MAINHORRATIO_EXT_MASK;
+ cfg_ext &= ~EXYNOS_CIEXTEN_MAINVERRATIO_EXT_MASK;
+ cfg_ext |= (EXYNOS_CIEXTEN_MAINHORRATIO_EXT(sc->hratio) |
+ EXYNOS_CIEXTEN_MAINVERRATIO_EXT(sc->vratio));
+ fimc_write(ctx, cfg_ext, EXYNOS_CIEXTEN);
+}
+
+static int fimc_dst_set_size(struct device *dev, int swap,
+ struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct drm_exynos_pos img_pos = *pos;
+ struct drm_exynos_sz img_sz = *sz;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("swap[%d]hsize[%d]vsize[%d]\n",
+ swap, sz->hsize, sz->vsize);
+
+ /* original size */
+ cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(img_sz.hsize) |
+ EXYNOS_ORGOSIZE_VERTICAL(img_sz.vsize));
+
+ fimc_write(ctx, cfg, EXYNOS_ORGOSIZE);
+
+ DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]\n", pos->x, pos->y, pos->w, pos->h);
+
+ /* CSC ITU */
+ cfg = fimc_read(ctx, EXYNOS_CIGCTRL);
+ cfg &= ~EXYNOS_CIGCTRL_CSC_MASK;
+
+ if (sz->hsize >= FIMC_WIDTH_ITU_709)
+ cfg |= EXYNOS_CIGCTRL_CSC_ITU709;
+ else
+ cfg |= EXYNOS_CIGCTRL_CSC_ITU601;
+
+ fimc_write(ctx, cfg, EXYNOS_CIGCTRL);
+
+ if (swap) {
+ img_pos.w = pos->h;
+ img_pos.h = pos->w;
+ img_sz.hsize = sz->vsize;
+ img_sz.vsize = sz->hsize;
+ }
+
+ /* target image size */
+ cfg = fimc_read(ctx, EXYNOS_CITRGFMT);
+ cfg &= ~(EXYNOS_CITRGFMT_TARGETH_MASK |
+ EXYNOS_CITRGFMT_TARGETV_MASK);
+ cfg |= (EXYNOS_CITRGFMT_TARGETHSIZE(img_pos.w) |
+ EXYNOS_CITRGFMT_TARGETVSIZE(img_pos.h));
+ fimc_write(ctx, cfg, EXYNOS_CITRGFMT);
+
+ /* target area */
+ cfg = EXYNOS_CITAREA_TARGET_AREA(img_pos.w * img_pos.h);
+ fimc_write(ctx, cfg, EXYNOS_CITAREA);
+
+ /* offset Y(RGB), Cb, Cr */
+ cfg = (EXYNOS_CIOYOFF_HORIZONTAL(img_pos.x) |
+ EXYNOS_CIOYOFF_VERTICAL(img_pos.y));
+ fimc_write(ctx, cfg, EXYNOS_CIOYOFF);
+ cfg = (EXYNOS_CIOCBOFF_HORIZONTAL(img_pos.x) |
+ EXYNOS_CIOCBOFF_VERTICAL(img_pos.y));
+ fimc_write(ctx, cfg, EXYNOS_CIOCBOFF);
+ cfg = (EXYNOS_CIOCROFF_HORIZONTAL(img_pos.x) |
+ EXYNOS_CIOCROFF_VERTICAL(img_pos.y));
+ fimc_write(ctx, cfg, EXYNOS_CIOCROFF);
+
+ return 0;
+}
+
+static void fimc_dst_set_buf_seq(struct fimc_context *ctx, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ unsigned long flags;
+ u32 buf_num;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("buf_id[%d]buf_type[%d]\n", buf_id, buf_type);
+
+ spin_lock_irqsave(&ctx->lock, flags);
+
+ cfg = fimc_read(ctx, EXYNOS_CIFCNTSEQ);
+
+ if (buf_type == IPP_BUF_ENQUEUE)
+ cfg |= (1 << buf_id);
+ else
+ cfg &= ~(1 << buf_id);
+
+ fimc_write(ctx, cfg, EXYNOS_CIFCNTSEQ);
+
+ buf_num = hweight32(cfg);
+
+ if (buf_type == IPP_BUF_ENQUEUE && buf_num >= FIMC_BUF_START)
+ fimc_mask_irq(ctx, true);
+ else if (buf_type == IPP_BUF_DEQUEUE && buf_num <= FIMC_BUF_STOP)
+ fimc_mask_irq(ctx, false);
+
+ spin_unlock_irqrestore(&ctx->lock, flags);
+}
+
+static int fimc_dst_set_addr(struct device *dev,
+ struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+ struct drm_exynos_ipp_property *property;
+ struct drm_exynos_ipp_config *config;
+
+ if (!c_node) {
+ DRM_ERROR("failed to get c_node.\n");
+ return -EINVAL;
+ }
+
+ property = &c_node->property;
+
+ DRM_DEBUG_KMS("prop_id[%d]buf_id[%d]buf_type[%d]\n",
+ property->prop_id, buf_id, buf_type);
+
+ if (buf_id > FIMC_MAX_DST) {
+ dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+ return -ENOMEM;
+ }
+
+ /* address register set */
+ switch (buf_type) {
+ case IPP_BUF_ENQUEUE:
+ config = &property->config[EXYNOS_DRM_OPS_DST];
+
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
+ EXYNOS_CIOYSA(buf_id));
+
+ if (config->fmt == DRM_FORMAT_YVU420) {
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+ EXYNOS_CIOCBSA(buf_id));
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+ EXYNOS_CIOCRSA(buf_id));
+ } else {
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
+ EXYNOS_CIOCBSA(buf_id));
+ fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
+ EXYNOS_CIOCRSA(buf_id));
+ }
+ break;
+ case IPP_BUF_DEQUEUE:
+ fimc_write(ctx, 0x0, EXYNOS_CIOYSA(buf_id));
+ fimc_write(ctx, 0x0, EXYNOS_CIOCBSA(buf_id));
+ fimc_write(ctx, 0x0, EXYNOS_CIOCRSA(buf_id));
+ break;
+ default:
+ /* bypass */
+ break;
+ }
+
+ fimc_dst_set_buf_seq(ctx, buf_id, buf_type);
+
+ return 0;
+}
+
+static struct exynos_drm_ipp_ops fimc_dst_ops = {
+ .set_fmt = fimc_dst_set_fmt,
+ .set_transf = fimc_dst_set_transf,
+ .set_size = fimc_dst_set_size,
+ .set_addr = fimc_dst_set_addr,
+};
+
+static int fimc_clk_ctrl(struct fimc_context *ctx, bool enable)
+{
+ DRM_DEBUG_KMS("enable[%d]\n", enable);
+
+ if (enable) {
+ clk_prepare_enable(ctx->clocks[FIMC_CLK_GATE]);
+ clk_prepare_enable(ctx->clocks[FIMC_CLK_WB_A]);
+ ctx->suspended = false;
+ } else {
+ clk_disable_unprepare(ctx->clocks[FIMC_CLK_GATE]);
+ clk_disable_unprepare(ctx->clocks[FIMC_CLK_WB_A]);
+ ctx->suspended = true;
+ }
+
+ return 0;
+}
+
+static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
+{
+ struct fimc_context *ctx = dev_id;
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+ struct drm_exynos_ipp_event_work *event_work =
+ c_node->event_work;
+ int buf_id;
+
+ DRM_DEBUG_KMS("fimc id[%d]\n", ctx->id);
+
+ fimc_clear_irq(ctx);
+ if (fimc_check_ovf(ctx))
+ return IRQ_NONE;
+
+ if (!fimc_check_frame_end(ctx))
+ return IRQ_NONE;
+
+ buf_id = fimc_get_buf_id(ctx);
+ if (buf_id < 0)
+ return IRQ_HANDLED;
+
+ DRM_DEBUG_KMS("buf_id[%d]\n", buf_id);
+
+ fimc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE);
+
+ event_work->ippdrv = ippdrv;
+ event_work->buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
+ queue_work(ippdrv->event_workq, &event_work->work);
+
+ return IRQ_HANDLED;
+}
+
+static int fimc_init_prop_list(struct exynos_drm_ippdrv *ippdrv)
+{
+ struct drm_exynos_ipp_prop_list *prop_list = &ippdrv->prop_list;
+
+ prop_list->version = 1;
+ prop_list->writeback = 1;
+ prop_list->refresh_min = FIMC_REFRESH_MIN;
+ prop_list->refresh_max = FIMC_REFRESH_MAX;
+ prop_list->flip = (1 << EXYNOS_DRM_FLIP_NONE) |
+ (1 << EXYNOS_DRM_FLIP_VERTICAL) |
+ (1 << EXYNOS_DRM_FLIP_HORIZONTAL);
+ prop_list->degree = (1 << EXYNOS_DRM_DEGREE_0) |
+ (1 << EXYNOS_DRM_DEGREE_90) |
+ (1 << EXYNOS_DRM_DEGREE_180) |
+ (1 << EXYNOS_DRM_DEGREE_270);
+ prop_list->csc = 1;
+ prop_list->crop = 1;
+ prop_list->crop_max.hsize = FIMC_CROP_MAX;
+ prop_list->crop_max.vsize = FIMC_CROP_MAX;
+ prop_list->crop_min.hsize = FIMC_CROP_MIN;
+ prop_list->crop_min.vsize = FIMC_CROP_MIN;
+ prop_list->scale = 1;
+ prop_list->scale_max.hsize = FIMC_SCALE_MAX;
+ prop_list->scale_max.vsize = FIMC_SCALE_MAX;
+ prop_list->scale_min.hsize = FIMC_SCALE_MIN;
+ prop_list->scale_min.vsize = FIMC_SCALE_MIN;
+
+ return 0;
+}
+
+static inline bool fimc_check_drm_flip(enum drm_exynos_flip flip)
+{
+ switch (flip) {
+ case EXYNOS_DRM_FLIP_NONE:
+ case EXYNOS_DRM_FLIP_VERTICAL:
+ case EXYNOS_DRM_FLIP_HORIZONTAL:
+ case EXYNOS_DRM_FLIP_BOTH:
+ return true;
+ default:
+ DRM_DEBUG_KMS("invalid flip\n");
+ return false;
+ }
+}
+
+static int fimc_ippdrv_check_property(struct device *dev,
+ struct drm_exynos_ipp_property *property)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_prop_list *pp = &ippdrv->prop_list;
+ struct drm_exynos_ipp_config *config;
+ struct drm_exynos_pos *pos;
+ struct drm_exynos_sz *sz;
+ bool swap;
+ int i;
+
+ for_each_ipp_ops(i) {
+ if ((i == EXYNOS_DRM_OPS_SRC) &&
+ (property->cmd == IPP_CMD_WB))
+ continue;
+
+ config = &property->config[i];
+ pos = &config->pos;
+ sz = &config->sz;
+
+ /* check for flip */
+ if (!fimc_check_drm_flip(config->flip)) {
+ DRM_ERROR("invalid flip.\n");
+ goto err_property;
+ }
+
+ /* check for degree */
+ switch (config->degree) {
+ case EXYNOS_DRM_DEGREE_90:
+ case EXYNOS_DRM_DEGREE_270:
+ swap = true;
+ break;
+ case EXYNOS_DRM_DEGREE_0:
+ case EXYNOS_DRM_DEGREE_180:
+ swap = false;
+ break;
+ default:
+ DRM_ERROR("invalid degree.\n");
+ goto err_property;
+ }
+
+ /* check for buffer bound */
+ if ((pos->x + pos->w > sz->hsize) ||
+ (pos->y + pos->h > sz->vsize)) {
+ DRM_ERROR("out of buf bound.\n");
+ goto err_property;
+ }
+
+ /* check for crop */
+ if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
+ if (swap) {
+ if ((pos->h < pp->crop_min.hsize) ||
+ (sz->vsize > pp->crop_max.hsize) ||
+ (pos->w < pp->crop_min.vsize) ||
+ (sz->hsize > pp->crop_max.vsize)) {
+ DRM_ERROR("out of crop size.\n");
+ goto err_property;
+ }
+ } else {
+ if ((pos->w < pp->crop_min.hsize) ||
+ (sz->hsize > pp->crop_max.hsize) ||
+ (pos->h < pp->crop_min.vsize) ||
+ (sz->vsize > pp->crop_max.vsize)) {
+ DRM_ERROR("out of crop size.\n");
+ goto err_property;
+ }
+ }
+ }
+
+ /* check for scale */
+ if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
+ if (swap) {
+ if ((pos->h < pp->scale_min.hsize) ||
+ (sz->vsize > pp->scale_max.hsize) ||
+ (pos->w < pp->scale_min.vsize) ||
+ (sz->hsize > pp->scale_max.vsize)) {
+ DRM_ERROR("out of scale size.\n");
+ goto err_property;
+ }
+ } else {
+ if ((pos->w < pp->scale_min.hsize) ||
+ (sz->hsize > pp->scale_max.hsize) ||
+ (pos->h < pp->scale_min.vsize) ||
+ (sz->vsize > pp->scale_max.vsize)) {
+ DRM_ERROR("out of scale size.\n");
+ goto err_property;
+ }
+ }
+ }
+ }
+
+ return 0;
+
+err_property:
+ for_each_ipp_ops(i) {
+ if ((i == EXYNOS_DRM_OPS_SRC) &&
+ (property->cmd == IPP_CMD_WB))
+ continue;
+
+ config = &property->config[i];
+ pos = &config->pos;
+ sz = &config->sz;
+
+ DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
+ i ? "dst" : "src", config->flip, config->degree,
+ pos->x, pos->y, pos->w, pos->h,
+ sz->hsize, sz->vsize);
+ }
+
+ return -EINVAL;
+}
+
+static void fimc_clear_addr(struct fimc_context *ctx)
+{
+ int i;
+
+ for (i = 0; i < FIMC_MAX_SRC; i++) {
+ fimc_write(ctx, 0, EXYNOS_CIIYSA(i));
+ fimc_write(ctx, 0, EXYNOS_CIICBSA(i));
+ fimc_write(ctx, 0, EXYNOS_CIICRSA(i));
+ }
+
+ for (i = 0; i < FIMC_MAX_DST; i++) {
+ fimc_write(ctx, 0, EXYNOS_CIOYSA(i));
+ fimc_write(ctx, 0, EXYNOS_CIOCBSA(i));
+ fimc_write(ctx, 0, EXYNOS_CIOCRSA(i));
+ }
+}
+
+static int fimc_ippdrv_reset(struct device *dev)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+
+ /* reset h/w block */
+ fimc_sw_reset(ctx);
+
+ /* reset scaler capability */
+ memset(&ctx->sc, 0x0, sizeof(ctx->sc));
+
+ fimc_clear_addr(ctx);
+
+ return 0;
+}
+
+static int fimc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
+ struct drm_exynos_ipp_property *property;
+ struct drm_exynos_ipp_config *config;
+ struct drm_exynos_pos img_pos[EXYNOS_DRM_OPS_MAX];
+ struct drm_exynos_ipp_set_wb set_wb;
+ int ret, i;
+ u32 cfg0, cfg1;
+
+ DRM_DEBUG_KMS("cmd[%d]\n", cmd);
+
+ if (!c_node) {
+ DRM_ERROR("failed to get c_node.\n");
+ return -EINVAL;
+ }
+
+ property = &c_node->property;
+
+ fimc_mask_irq(ctx, true);
+
+ for_each_ipp_ops(i) {
+ config = &property->config[i];
+ img_pos[i] = config->pos;
+ }
+
+ ret = fimc_set_prescaler(ctx, &ctx->sc,
+ &img_pos[EXYNOS_DRM_OPS_SRC],
+ &img_pos[EXYNOS_DRM_OPS_DST]);
+ if (ret) {
+ dev_err(dev, "failed to set precalser.\n");
+ return ret;
+ }
+
+ /* If set ture, we can save jpeg about screen */
+ fimc_handle_jpeg(ctx, false);
+ fimc_set_scaler(ctx, &ctx->sc);
+ fimc_set_polarity(ctx, &ctx->pol);
+
+ switch (cmd) {
+ case IPP_CMD_M2M:
+ fimc_set_type_ctrl(ctx, FIMC_WB_NONE);
+ fimc_handle_lastend(ctx, false);
+
+ /* setup dma */
+ cfg0 = fimc_read(ctx, EXYNOS_MSCTRL);
+ cfg0 &= ~EXYNOS_MSCTRL_INPUT_MASK;
+ cfg0 |= EXYNOS_MSCTRL_INPUT_MEMORY;
+ fimc_write(ctx, cfg0, EXYNOS_MSCTRL);
+ break;
+ case IPP_CMD_WB:
+ fimc_set_type_ctrl(ctx, FIMC_WB_A);
+ fimc_handle_lastend(ctx, true);
+
+ /* setup FIMD */
+ ret = fimc_set_camblk_fimd0_wb(ctx);
+ if (ret < 0) {
+ dev_err(dev, "camblk setup failed.\n");
+ return ret;
+ }
+
+ set_wb.enable = 1;
+ set_wb.refresh = property->refresh_rate;
+ exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+ break;
+ case IPP_CMD_OUTPUT:
+ default:
+ ret = -EINVAL;
+ dev_err(dev, "invalid operations.\n");
+ return ret;
+ }
+
+ /* Reset status */
+ fimc_write(ctx, 0x0, EXYNOS_CISTATUS);
+
+ cfg0 = fimc_read(ctx, EXYNOS_CIIMGCPT);
+ cfg0 &= ~EXYNOS_CIIMGCPT_IMGCPTEN_SC;
+ cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN_SC;
+
+ /* Scaler */
+ cfg1 = fimc_read(ctx, EXYNOS_CISCCTRL);
+ cfg1 &= ~EXYNOS_CISCCTRL_SCAN_MASK;
+ cfg1 |= (EXYNOS_CISCCTRL_PROGRESSIVE |
+ EXYNOS_CISCCTRL_SCALERSTART);
+
+ fimc_write(ctx, cfg1, EXYNOS_CISCCTRL);
+
+ /* Enable image capture*/
+ cfg0 |= EXYNOS_CIIMGCPT_IMGCPTEN;
+ fimc_write(ctx, cfg0, EXYNOS_CIIMGCPT);
+
+ /* Disable frame end irq */
+ fimc_clear_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
+
+ fimc_clear_bits(ctx, EXYNOS_CIOCTRL, EXYNOS_CIOCTRL_WEAVE_MASK);
+
+ if (cmd == IPP_CMD_M2M)
+ fimc_set_bits(ctx, EXYNOS_MSCTRL, EXYNOS_MSCTRL_ENVID);
+
+ return 0;
+}
+
+static void fimc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct drm_exynos_ipp_set_wb set_wb = {0, 0};
+ u32 cfg;
+
+ DRM_DEBUG_KMS("cmd[%d]\n", cmd);
+
+ switch (cmd) {
+ case IPP_CMD_M2M:
+ /* Source clear */
+ cfg = fimc_read(ctx, EXYNOS_MSCTRL);
+ cfg &= ~EXYNOS_MSCTRL_INPUT_MASK;
+ cfg &= ~EXYNOS_MSCTRL_ENVID;
+ fimc_write(ctx, cfg, EXYNOS_MSCTRL);
+ break;
+ case IPP_CMD_WB:
+ exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+ break;
+ case IPP_CMD_OUTPUT:
+ default:
+ dev_err(dev, "invalid operations.\n");
+ break;
+ }
+
+ fimc_mask_irq(ctx, false);
+
+ /* reset sequence */
+ fimc_write(ctx, 0x0, EXYNOS_CIFCNTSEQ);
+
+ /* Scaler disable */
+ fimc_clear_bits(ctx, EXYNOS_CISCCTRL, EXYNOS_CISCCTRL_SCALERSTART);
+
+ /* Disable image capture */
+ fimc_clear_bits(ctx, EXYNOS_CIIMGCPT,
+ EXYNOS_CIIMGCPT_IMGCPTEN_SC | EXYNOS_CIIMGCPT_IMGCPTEN);
+
+ /* Enable frame end irq */
+ fimc_set_bits(ctx, EXYNOS_CIGCTRL, EXYNOS_CIGCTRL_IRQ_END_DISABLE);
+}
+
+static void fimc_put_clocks(struct fimc_context *ctx)
+{
+ int i;
+
+ for (i = 0; i < FIMC_CLKS_MAX; i++) {
+ if (IS_ERR(ctx->clocks[i]))
+ continue;
+ clk_put(ctx->clocks[i]);
+ ctx->clocks[i] = ERR_PTR(-EINVAL);
+ }
+}
+
+static int fimc_setup_clocks(struct fimc_context *ctx)
+{
+ struct device *fimc_dev = ctx->ippdrv.dev;
+ struct device *dev;
+ int ret, i;
+
+ for (i = 0; i < FIMC_CLKS_MAX; i++)
+ ctx->clocks[i] = ERR_PTR(-EINVAL);
+
+ for (i = 0; i < FIMC_CLKS_MAX; i++) {
+ if (i == FIMC_CLK_WB_A || i == FIMC_CLK_WB_B)
+ dev = fimc_dev->parent;
+ else
+ dev = fimc_dev;
+
+ ctx->clocks[i] = clk_get(dev, fimc_clock_names[i]);
+ if (IS_ERR(ctx->clocks[i])) {
+ if (i >= FIMC_CLK_MUX)
+ break;
+ ret = PTR_ERR(ctx->clocks[i]);
+ dev_err(fimc_dev, "failed to get clock: %s\n",
+ fimc_clock_names[i]);
+ goto e_clk_free;
+ }
+ }
+
+ /* Optional FIMC LCLK parent clock setting */
+ if (!IS_ERR(ctx->clocks[FIMC_CLK_PARENT])) {
+ ret = clk_set_parent(ctx->clocks[FIMC_CLK_MUX],
+ ctx->clocks[FIMC_CLK_PARENT]);
+ if (ret < 0) {
+ dev_err(fimc_dev, "failed to set parent.\n");
+ goto e_clk_free;
+ }
+ }
+
+ ret = clk_set_rate(ctx->clocks[FIMC_CLK_LCLK], ctx->clk_frequency);
+ if (ret < 0)
+ goto e_clk_free;
+
+ ret = clk_prepare_enable(ctx->clocks[FIMC_CLK_LCLK]);
+ if (!ret)
+ return ret;
+e_clk_free:
+ fimc_put_clocks(ctx);
+ return ret;
+}
+
+static int fimc_parse_dt(struct fimc_context *ctx)
+{
+ struct device_node *node = ctx->ippdrv.dev->of_node;
+
+ /* Handle only devices that support the LCD Writeback data path */
+ if (!of_property_read_bool(node, "samsung,lcd-wb"))
+ return -ENODEV;
+
+ if (of_property_read_u32(node, "clock-frequency",
+ &ctx->clk_frequency))
+ ctx->clk_frequency = FIMC_DEFAULT_LCLK_FREQUENCY;
+
+ ctx->id = of_alias_get_id(node, "fimc");
+
+ if (ctx->id < 0) {
+ dev_err(ctx->ippdrv.dev, "failed to get node alias id.\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int fimc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct fimc_context *ctx;
+ struct resource *res;
+ struct exynos_drm_ippdrv *ippdrv;
+ int ret;
+
+ if (!dev->of_node) {
+ dev_err(dev, "device tree node not found.\n");
+ return -ENODEV;
+ }
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->ippdrv.dev = dev;
+
+ ret = fimc_parse_dt(ctx);
+ if (ret < 0)
+ return ret;
+
+ ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "samsung,sysreg");
+ if (IS_ERR(ctx->sysreg)) {
+ dev_err(dev, "syscon regmap lookup failed.\n");
+ return PTR_ERR(ctx->sysreg);
+ }
+
+ /* resource memory */
+ ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+ if (IS_ERR(ctx->regs))
+ return PTR_ERR(ctx->regs);
+
+ /* resource irq */
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res) {
+ dev_err(dev, "failed to request irq resource.\n");
+ return -ENOENT;
+ }
+
+ ctx->irq = res->start;
+ ret = devm_request_threaded_irq(dev, ctx->irq, NULL, fimc_irq_handler,
+ IRQF_ONESHOT, "drm_fimc", ctx);
+ if (ret < 0) {
+ dev_err(dev, "failed to request irq.\n");
+ return ret;
+ }
+
+ ret = fimc_setup_clocks(ctx);
+ if (ret < 0)
+ return ret;
+
+ ippdrv = &ctx->ippdrv;
+ ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &fimc_src_ops;
+ ippdrv->ops[EXYNOS_DRM_OPS_DST] = &fimc_dst_ops;
+ ippdrv->check_property = fimc_ippdrv_check_property;
+ ippdrv->reset = fimc_ippdrv_reset;
+ ippdrv->start = fimc_ippdrv_start;
+ ippdrv->stop = fimc_ippdrv_stop;
+ ret = fimc_init_prop_list(ippdrv);
+ if (ret < 0) {
+ dev_err(dev, "failed to init property list.\n");
+ goto err_put_clk;
+ }
+
+ DRM_DEBUG_KMS("id[%d]ippdrv[0x%x]\n", ctx->id, (int)ippdrv);
+
+ spin_lock_init(&ctx->lock);
+ platform_set_drvdata(pdev, ctx);
+
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+
+ ret = exynos_drm_ippdrv_register(ippdrv);
+ if (ret < 0) {
+ dev_err(dev, "failed to register drm fimc device.\n");
+ goto err_pm_dis;
+ }
+
+ dev_info(dev, "drm fimc registered successfully.\n");
+
+ return 0;
+
+err_pm_dis:
+ pm_runtime_disable(dev);
+err_put_clk:
+ fimc_put_clocks(ctx);
+
+ return ret;
+}
+
+static int fimc_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct fimc_context *ctx = get_fimc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+
+ exynos_drm_ippdrv_unregister(ippdrv);
+
+ fimc_put_clocks(ctx);
+ pm_runtime_set_suspended(dev);
+ pm_runtime_disable(dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int fimc_suspend(struct device *dev)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+
+ DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ return fimc_clk_ctrl(ctx, false);
+}
+
+static int fimc_resume(struct device *dev)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+
+ DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+ if (!pm_runtime_suspended(dev))
+ return fimc_clk_ctrl(ctx, true);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_PM
+static int fimc_runtime_suspend(struct device *dev)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+
+ DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+ return fimc_clk_ctrl(ctx, false);
+}
+
+static int fimc_runtime_resume(struct device *dev)
+{
+ struct fimc_context *ctx = get_fimc_context(dev);
+
+ DRM_DEBUG_KMS("id[%d]\n", ctx->id);
+
+ return fimc_clk_ctrl(ctx, true);
+}
+#endif
+
+static const struct dev_pm_ops fimc_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(fimc_suspend, fimc_resume)
+ SET_RUNTIME_PM_OPS(fimc_runtime_suspend, fimc_runtime_resume, NULL)
+};
+
+static const struct of_device_id fimc_of_match[] = {
+ { .compatible = "samsung,exynos4210-fimc" },
+ { .compatible = "samsung,exynos4212-fimc" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, fimc_of_match);
+
+struct platform_driver fimc_driver = {
+ .probe = fimc_probe,
+ .remove = fimc_remove,
+ .driver = {
+ .of_match_table = fimc_of_match,
+ .name = "exynos-drm-fimc",
+ .owner = THIS_MODULE,
+ .pm = &fimc_pm_ops,
+ },
+};
+
Code Review / kvmfornfv.git / blobdiff