diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/mdfld_intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/mdfld_intel_display.c | 966 |
1 files changed, 0 insertions, 966 deletions
diff --git a/drivers/gpu/drm/gma500/mdfld_intel_display.c b/drivers/gpu/drm/gma500/mdfld_intel_display.c deleted file mode 100644 index 462aba8f7528..000000000000 --- a/drivers/gpu/drm/gma500/mdfld_intel_display.c +++ /dev/null @@ -1,966 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright © 2006-2007 Intel Corporation - * - * Authors: - * Eric Anholt <eric@anholt.net> - */ - -#include <linux/delay.h> -#include <linux/i2c.h> -#include <linux/pm_runtime.h> - -#include <drm/drm_crtc.h> -#include <drm/drm_fourcc.h> - -#include "framebuffer.h" -#include "gma_display.h" -#include "mdfld_dsi_output.h" -#include "mdfld_output.h" -#include "psb_intel_reg.h" - -/* Hardcoded currently */ -static int ksel = KSEL_CRYSTAL_19; - -struct psb_intel_range_t { - int min, max; -}; - -struct mrst_limit_t { - struct psb_intel_range_t dot, m, p1; -}; - -struct mrst_clock_t { - /* derived values */ - int dot; - int m; - int p1; -}; - -#define COUNT_MAX 0x10000000 - -void mdfldWaitForPipeDisable(struct drm_device *dev, int pipe) -{ - struct drm_psb_private *dev_priv = dev->dev_private; - const struct psb_offset *map = &dev_priv->regmap[pipe]; - int count, temp; - - switch (pipe) { - case 0: - case 1: - case 2: - break; - default: - DRM_ERROR("Illegal Pipe Number.\n"); - return; - } - - /* FIXME JLIU7_PO */ - gma_wait_for_vblank(dev); - return; - - /* Wait for for the pipe disable to take effect. */ - for (count = 0; count < COUNT_MAX; count++) { - temp = REG_READ(map->conf); - if ((temp & PIPEACONF_PIPE_STATE) == 0) - break; - } -} - -void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe) -{ - struct drm_psb_private *dev_priv = dev->dev_private; - const struct psb_offset *map = &dev_priv->regmap[pipe]; - int count, temp; - - switch (pipe) { - case 0: - case 1: - case 2: - break; - default: - DRM_ERROR("Illegal Pipe Number.\n"); - return; - } - - /* FIXME JLIU7_PO */ - gma_wait_for_vblank(dev); - return; - - /* Wait for for the pipe enable to take effect. */ - for (count = 0; count < COUNT_MAX; count++) { - temp = REG_READ(map->conf); - if (temp & PIPEACONF_PIPE_STATE) - break; - } -} - -/* - * Return the pipe currently connected to the panel fitter, - * or -1 if the panel fitter is not present or not in use - */ -static int psb_intel_panel_fitter_pipe(struct drm_device *dev) -{ - u32 pfit_control; - - pfit_control = REG_READ(PFIT_CONTROL); - - /* See if the panel fitter is in use */ - if ((pfit_control & PFIT_ENABLE) == 0) - return -1; - - /* 965 can place panel fitter on either pipe */ - return (pfit_control >> 29) & 0x3; -} - -static int check_fb(struct drm_framebuffer *fb) -{ - if (!fb) - return 0; - - switch (fb->format->cpp[0] * 8) { - case 8: - case 16: - case 24: - case 32: - return 0; - default: - DRM_ERROR("Unknown color depth\n"); - return -EINVAL; - } -} - -static int mdfld__intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, - struct drm_framebuffer *old_fb) -{ - struct drm_device *dev = crtc->dev; - struct drm_psb_private *dev_priv = dev->dev_private; - struct drm_framebuffer *fb = crtc->primary->fb; - struct gma_crtc *gma_crtc = to_gma_crtc(crtc); - int pipe = gma_crtc->pipe; - const struct psb_offset *map = &dev_priv->regmap[pipe]; - unsigned long start, offset; - u32 dspcntr; - int ret; - - dev_dbg(dev->dev, "pipe = 0x%x.\n", pipe); - - /* no fb bound */ - if (!fb) { - dev_dbg(dev->dev, "No FB bound\n"); - return 0; - } - - ret = check_fb(fb); - if (ret) - return ret; - - if (pipe > 2) { - DRM_ERROR("Illegal Pipe Number.\n"); - return -EINVAL; - } - - if (!gma_power_begin(dev, true)) - return 0; - - start = to_gtt_range(fb->obj[0])->offset; - offset = y * fb->pitches[0] + x * fb->format->cpp[0]; - - REG_WRITE(map->stride, fb->pitches[0]); - dspcntr = REG_READ(map->cntr); - dspcntr &= ~DISPPLANE_PIXFORMAT_MASK; - - switch (fb->format->cpp[0] * 8) { - case 8: - dspcntr |= DISPPLANE_8BPP; - break; - case 16: - if (fb->format->depth == 15) - dspcntr |= DISPPLANE_15_16BPP; - else - dspcntr |= DISPPLANE_16BPP; - break; - case 24: - case 32: - dspcntr |= DISPPLANE_32BPP_NO_ALPHA; - break; - } - REG_WRITE(map->cntr, dspcntr); - - dev_dbg(dev->dev, "Writing base %08lX %08lX %d %d\n", - start, offset, x, y); - REG_WRITE(map->linoff, offset); - REG_READ(map->linoff); - REG_WRITE(map->surf, start); - REG_READ(map->surf); - - gma_power_end(dev); - - return 0; -} - -/* - * Disable the pipe, plane and pll. - * - */ -void mdfld_disable_crtc(struct drm_device *dev, int pipe) -{ - struct drm_psb_private *dev_priv = dev->dev_private; - const struct psb_offset *map = &dev_priv->regmap[pipe]; - u32 temp; - - dev_dbg(dev->dev, "pipe = %d\n", pipe); - - - if (pipe != 1) - mdfld_dsi_gen_fifo_ready(dev, MIPI_GEN_FIFO_STAT_REG(pipe), - HS_CTRL_FIFO_EMPTY | HS_DATA_FIFO_EMPTY); - - /* Disable display plane */ - temp = REG_READ(map->cntr); - if ((temp & DISPLAY_PLANE_ENABLE) != 0) { - REG_WRITE(map->cntr, - temp & ~DISPLAY_PLANE_ENABLE); - /* Flush the plane changes */ - REG_WRITE(map->base, REG_READ(map->base)); - REG_READ(map->base); - } - - /* FIXME_JLIU7 MDFLD_PO revisit */ - - /* Next, disable display pipes */ - temp = REG_READ(map->conf); - if ((temp & PIPEACONF_ENABLE) != 0) { - temp &= ~PIPEACONF_ENABLE; - temp |= PIPECONF_PLANE_OFF | PIPECONF_CURSOR_OFF; - REG_WRITE(map->conf, temp); - REG_READ(map->conf); - - /* Wait for for the pipe disable to take effect. */ - mdfldWaitForPipeDisable(dev, pipe); - } - - temp = REG_READ(map->dpll); - if (temp & DPLL_VCO_ENABLE) { - if ((pipe != 1 && - !((REG_READ(PIPEACONF) | REG_READ(PIPECCONF)) - & PIPEACONF_ENABLE)) || pipe == 1) { - temp &= ~(DPLL_VCO_ENABLE); - REG_WRITE(map->dpll, temp); - REG_READ(map->dpll); - /* Wait for the clocks to turn off. */ - /* FIXME_MDFLD PO may need more delay */ - udelay(500); - - if (!(temp & MDFLD_PWR_GATE_EN)) { - /* gating power of DPLL */ - REG_WRITE(map->dpll, temp | MDFLD_PWR_GATE_EN); - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(5000); - } - } - } - -} - -/* - * Sets the power management mode of the pipe and plane. - * - * This code should probably grow support for turning the cursor off and back - * on appropriately at the same time as we're turning the pipe off/on. - */ -static void mdfld_crtc_dpms(struct drm_crtc *crtc, int mode) -{ - struct drm_device *dev = crtc->dev; - struct drm_psb_private *dev_priv = dev->dev_private; - struct gma_crtc *gma_crtc = to_gma_crtc(crtc); - int pipe = gma_crtc->pipe; - const struct psb_offset *map = &dev_priv->regmap[pipe]; - u32 pipeconf = dev_priv->pipeconf[pipe]; - u32 temp; - int timeout = 0; - - dev_dbg(dev->dev, "mode = %d, pipe = %d\n", mode, pipe); - - /* Note: Old code uses pipe a stat for pipe b but that appears - to be a bug */ - - if (!gma_power_begin(dev, true)) - return; - - /* XXX: When our outputs are all unaware of DPMS modes other than off - * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC. - */ - switch (mode) { - case DRM_MODE_DPMS_ON: - case DRM_MODE_DPMS_STANDBY: - case DRM_MODE_DPMS_SUSPEND: - /* Enable the DPLL */ - temp = REG_READ(map->dpll); - - if ((temp & DPLL_VCO_ENABLE) == 0) { - /* When ungating power of DPLL, needs to wait 0.5us - before enable the VCO */ - if (temp & MDFLD_PWR_GATE_EN) { - temp &= ~MDFLD_PWR_GATE_EN; - REG_WRITE(map->dpll, temp); - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(500); - } - - REG_WRITE(map->dpll, temp); - REG_READ(map->dpll); - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(500); - - REG_WRITE(map->dpll, temp | DPLL_VCO_ENABLE); - REG_READ(map->dpll); - - /** - * wait for DSI PLL to lock - * NOTE: only need to poll status of pipe 0 and pipe 1, - * since both MIPI pipes share the same PLL. - */ - while ((pipe != 2) && (timeout < 20000) && - !(REG_READ(map->conf) & PIPECONF_DSIPLL_LOCK)) { - udelay(150); - timeout++; - } - } - - /* Enable the plane */ - temp = REG_READ(map->cntr); - if ((temp & DISPLAY_PLANE_ENABLE) == 0) { - REG_WRITE(map->cntr, - temp | DISPLAY_PLANE_ENABLE); - /* Flush the plane changes */ - REG_WRITE(map->base, REG_READ(map->base)); - } - - /* Enable the pipe */ - temp = REG_READ(map->conf); - if ((temp & PIPEACONF_ENABLE) == 0) { - REG_WRITE(map->conf, pipeconf); - - /* Wait for for the pipe enable to take effect. */ - mdfldWaitForPipeEnable(dev, pipe); - } - - /*workaround for sighting 3741701 Random X blank display*/ - /*perform w/a in video mode only on pipe A or C*/ - if (pipe == 0 || pipe == 2) { - REG_WRITE(map->status, REG_READ(map->status)); - msleep(100); - if (PIPE_VBLANK_STATUS & REG_READ(map->status)) - dev_dbg(dev->dev, "OK"); - else { - dev_dbg(dev->dev, "STUCK!!!!"); - /*shutdown controller*/ - temp = REG_READ(map->cntr); - REG_WRITE(map->cntr, - temp & ~DISPLAY_PLANE_ENABLE); - REG_WRITE(map->base, REG_READ(map->base)); - /*mdfld_dsi_dpi_shut_down(dev, pipe);*/ - REG_WRITE(0xb048, 1); - msleep(100); - temp = REG_READ(map->conf); - temp &= ~PIPEACONF_ENABLE; - REG_WRITE(map->conf, temp); - msleep(100); /*wait for pipe disable*/ - REG_WRITE(MIPI_DEVICE_READY_REG(pipe), 0); - msleep(100); - REG_WRITE(0xb004, REG_READ(0xb004)); - /* try to bring the controller back up again*/ - REG_WRITE(MIPI_DEVICE_READY_REG(pipe), 1); - temp = REG_READ(map->cntr); - REG_WRITE(map->cntr, - temp | DISPLAY_PLANE_ENABLE); - REG_WRITE(map->base, REG_READ(map->base)); - /*mdfld_dsi_dpi_turn_on(dev, pipe);*/ - REG_WRITE(0xb048, 2); - msleep(100); - temp = REG_READ(map->conf); - temp |= PIPEACONF_ENABLE; - REG_WRITE(map->conf, temp); - } - } - - gma_crtc_load_lut(crtc); - - /* Give the overlay scaler a chance to enable - if it's on this pipe */ - /* psb_intel_crtc_dpms_video(crtc, true); TODO */ - - break; - case DRM_MODE_DPMS_OFF: - /* Give the overlay scaler a chance to disable - * if it's on this pipe */ - /* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */ - if (pipe != 1) - mdfld_dsi_gen_fifo_ready(dev, - MIPI_GEN_FIFO_STAT_REG(pipe), - HS_CTRL_FIFO_EMPTY | HS_DATA_FIFO_EMPTY); - - /* Disable the VGA plane that we never use */ - REG_WRITE(VGACNTRL, VGA_DISP_DISABLE); - - /* Disable display plane */ - temp = REG_READ(map->cntr); - if ((temp & DISPLAY_PLANE_ENABLE) != 0) { - REG_WRITE(map->cntr, - temp & ~DISPLAY_PLANE_ENABLE); - /* Flush the plane changes */ - REG_WRITE(map->base, REG_READ(map->base)); - REG_READ(map->base); - } - - /* Next, disable display pipes */ - temp = REG_READ(map->conf); - if ((temp & PIPEACONF_ENABLE) != 0) { - temp &= ~PIPEACONF_ENABLE; - temp |= PIPECONF_PLANE_OFF | PIPECONF_CURSOR_OFF; - REG_WRITE(map->conf, temp); - REG_READ(map->conf); - - /* Wait for for the pipe disable to take effect. */ - mdfldWaitForPipeDisable(dev, pipe); - } - - temp = REG_READ(map->dpll); - if (temp & DPLL_VCO_ENABLE) { - if ((pipe != 1 && !((REG_READ(PIPEACONF) - | REG_READ(PIPECCONF)) & PIPEACONF_ENABLE)) - || pipe == 1) { - temp &= ~(DPLL_VCO_ENABLE); - REG_WRITE(map->dpll, temp); - REG_READ(map->dpll); - /* Wait for the clocks to turn off. */ - /* FIXME_MDFLD PO may need more delay */ - udelay(500); - } - } - break; - } - gma_power_end(dev); -} - - -#define MDFLD_LIMT_DPLL_19 0 -#define MDFLD_LIMT_DPLL_25 1 -#define MDFLD_LIMT_DPLL_83 2 -#define MDFLD_LIMT_DPLL_100 3 -#define MDFLD_LIMT_DSIPLL_19 4 -#define MDFLD_LIMT_DSIPLL_25 5 -#define MDFLD_LIMT_DSIPLL_83 6 -#define MDFLD_LIMT_DSIPLL_100 7 - -#define MDFLD_DOT_MIN 19750 -#define MDFLD_DOT_MAX 120000 -#define MDFLD_DPLL_M_MIN_19 113 -#define MDFLD_DPLL_M_MAX_19 155 -#define MDFLD_DPLL_P1_MIN_19 2 -#define MDFLD_DPLL_P1_MAX_19 10 -#define MDFLD_DPLL_M_MIN_25 101 -#define MDFLD_DPLL_M_MAX_25 130 -#define MDFLD_DPLL_P1_MIN_25 2 -#define MDFLD_DPLL_P1_MAX_25 10 -#define MDFLD_DPLL_M_MIN_83 64 -#define MDFLD_DPLL_M_MAX_83 64 -#define MDFLD_DPLL_P1_MIN_83 2 -#define MDFLD_DPLL_P1_MAX_83 2 -#define MDFLD_DPLL_M_MIN_100 64 -#define MDFLD_DPLL_M_MAX_100 64 -#define MDFLD_DPLL_P1_MIN_100 2 -#define MDFLD_DPLL_P1_MAX_100 2 -#define MDFLD_DSIPLL_M_MIN_19 131 -#define MDFLD_DSIPLL_M_MAX_19 175 -#define MDFLD_DSIPLL_P1_MIN_19 3 -#define MDFLD_DSIPLL_P1_MAX_19 8 -#define MDFLD_DSIPLL_M_MIN_25 97 -#define MDFLD_DSIPLL_M_MAX_25 140 -#define MDFLD_DSIPLL_P1_MIN_25 3 -#define MDFLD_DSIPLL_P1_MAX_25 9 -#define MDFLD_DSIPLL_M_MIN_83 33 -#define MDFLD_DSIPLL_M_MAX_83 92 -#define MDFLD_DSIPLL_P1_MIN_83 2 -#define MDFLD_DSIPLL_P1_MAX_83 3 -#define MDFLD_DSIPLL_M_MIN_100 97 -#define MDFLD_DSIPLL_M_MAX_100 140 -#define MDFLD_DSIPLL_P1_MIN_100 3 -#define MDFLD_DSIPLL_P1_MAX_100 9 - -static const struct mrst_limit_t mdfld_limits[] = { - { /* MDFLD_LIMT_DPLL_19 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DPLL_M_MIN_19, .max = MDFLD_DPLL_M_MAX_19}, - .p1 = {.min = MDFLD_DPLL_P1_MIN_19, .max = MDFLD_DPLL_P1_MAX_19}, - }, - { /* MDFLD_LIMT_DPLL_25 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DPLL_M_MIN_25, .max = MDFLD_DPLL_M_MAX_25}, - .p1 = {.min = MDFLD_DPLL_P1_MIN_25, .max = MDFLD_DPLL_P1_MAX_25}, - }, - { /* MDFLD_LIMT_DPLL_83 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DPLL_M_MIN_83, .max = MDFLD_DPLL_M_MAX_83}, - .p1 = {.min = MDFLD_DPLL_P1_MIN_83, .max = MDFLD_DPLL_P1_MAX_83}, - }, - { /* MDFLD_LIMT_DPLL_100 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DPLL_M_MIN_100, .max = MDFLD_DPLL_M_MAX_100}, - .p1 = {.min = MDFLD_DPLL_P1_MIN_100, .max = MDFLD_DPLL_P1_MAX_100}, - }, - { /* MDFLD_LIMT_DSIPLL_19 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DSIPLL_M_MIN_19, .max = MDFLD_DSIPLL_M_MAX_19}, - .p1 = {.min = MDFLD_DSIPLL_P1_MIN_19, .max = MDFLD_DSIPLL_P1_MAX_19}, - }, - { /* MDFLD_LIMT_DSIPLL_25 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DSIPLL_M_MIN_25, .max = MDFLD_DSIPLL_M_MAX_25}, - .p1 = {.min = MDFLD_DSIPLL_P1_MIN_25, .max = MDFLD_DSIPLL_P1_MAX_25}, - }, - { /* MDFLD_LIMT_DSIPLL_83 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DSIPLL_M_MIN_83, .max = MDFLD_DSIPLL_M_MAX_83}, - .p1 = {.min = MDFLD_DSIPLL_P1_MIN_83, .max = MDFLD_DSIPLL_P1_MAX_83}, - }, - { /* MDFLD_LIMT_DSIPLL_100 */ - .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX}, - .m = {.min = MDFLD_DSIPLL_M_MIN_100, .max = MDFLD_DSIPLL_M_MAX_100}, - .p1 = {.min = MDFLD_DSIPLL_P1_MIN_100, .max = MDFLD_DSIPLL_P1_MAX_100}, - }, -}; - -#define MDFLD_M_MIN 21 -#define MDFLD_M_MAX 180 -static const u32 mdfld_m_converts[] = { -/* M configuration table from 9-bit LFSR table */ - 224, 368, 440, 220, 366, 439, 219, 365, 182, 347, /* 21 - 30 */ - 173, 342, 171, 85, 298, 149, 74, 37, 18, 265, /* 31 - 40 */ - 388, 194, 353, 432, 216, 108, 310, 155, 333, 166, /* 41 - 50 */ - 83, 41, 276, 138, 325, 162, 337, 168, 340, 170, /* 51 - 60 */ - 341, 426, 469, 234, 373, 442, 221, 110, 311, 411, /* 61 - 70 */ - 461, 486, 243, 377, 188, 350, 175, 343, 427, 213, /* 71 - 80 */ - 106, 53, 282, 397, 354, 227, 113, 56, 284, 142, /* 81 - 90 */ - 71, 35, 273, 136, 324, 418, 465, 488, 500, 506, /* 91 - 100 */ - 253, 126, 63, 287, 399, 455, 483, 241, 376, 444, /* 101 - 110 */ - 478, 495, 503, 251, 381, 446, 479, 239, 375, 443, /* 111 - 120 */ - 477, 238, 119, 315, 157, 78, 295, 147, 329, 420, /* 121 - 130 */ - 210, 105, 308, 154, 77, 38, 275, 137, 68, 290, /* 131 - 140 */ - 145, 328, 164, 82, 297, 404, 458, 485, 498, 249, /* 141 - 150 */ - 380, 190, 351, 431, 471, 235, 117, 314, 413, 206, /* 151 - 160 */ - 103, 51, 25, 12, 262, 387, 193, 96, 48, 280, /* 161 - 170 */ - 396, 198, 99, 305, 152, 76, 294, 403, 457, 228, /* 171 - 180 */ -}; - -static const struct mrst_limit_t *mdfld_limit(struct drm_crtc *crtc) -{ - const struct mrst_limit_t *limit = NULL; - struct drm_device *dev = crtc->dev; - struct drm_psb_private *dev_priv = dev->dev_private; - - if (gma_pipe_has_type(crtc, INTEL_OUTPUT_MIPI) - || gma_pipe_has_type(crtc, INTEL_OUTPUT_MIPI2)) { - if ((ksel == KSEL_CRYSTAL_19) || (ksel == KSEL_BYPASS_19)) - limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_19]; - else if (ksel == KSEL_BYPASS_25) - limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_25]; - else if ((ksel == KSEL_BYPASS_83_100) && - (dev_priv->core_freq == 166)) - limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_83]; - else if ((ksel == KSEL_BYPASS_83_100) && - (dev_priv->core_freq == 100 || - dev_priv->core_freq == 200)) - limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_100]; - } else if (gma_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) { - if ((ksel == KSEL_CRYSTAL_19) || (ksel == KSEL_BYPASS_19)) - limit = &mdfld_limits[MDFLD_LIMT_DPLL_19]; - else if (ksel == KSEL_BYPASS_25) - limit = &mdfld_limits[MDFLD_LIMT_DPLL_25]; - else if ((ksel == KSEL_BYPASS_83_100) && - (dev_priv->core_freq == 166)) - limit = &mdfld_limits[MDFLD_LIMT_DPLL_83]; - else if ((ksel == KSEL_BYPASS_83_100) && - (dev_priv->core_freq == 100 || - dev_priv->core_freq == 200)) - limit = &mdfld_limits[MDFLD_LIMT_DPLL_100]; - } else { - limit = NULL; - dev_dbg(dev->dev, "mdfld_limit Wrong display type.\n"); - } - - return limit; -} - -/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */ -static void mdfld_clock(int refclk, struct mrst_clock_t *clock) -{ - clock->dot = (refclk * clock->m) / clock->p1; -} - -/* - * Returns a set of divisors for the desired target clock with the given refclk, - * or FALSE. Divisor values are the actual divisors for - */ -static bool -mdfldFindBestPLL(struct drm_crtc *crtc, int target, int refclk, - struct mrst_clock_t *best_clock) -{ - struct mrst_clock_t clock; - const struct mrst_limit_t *limit = mdfld_limit(crtc); - int err = target; - - memset(best_clock, 0, sizeof(*best_clock)); - - for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) { - for (clock.p1 = limit->p1.min; clock.p1 <= limit->p1.max; - clock.p1++) { - int this_err; - - mdfld_clock(refclk, &clock); - - this_err = abs(clock.dot - target); - if (this_err < err) { - *best_clock = clock; - err = this_err; - } - } - } - return err != target; -} - -static int mdfld_crtc_mode_set(struct drm_crtc *crtc, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode, - int x, int y, - struct drm_framebuffer *old_fb) -{ - struct drm_device *dev = crtc->dev; - struct gma_crtc *gma_crtc = to_gma_crtc(crtc); - struct drm_psb_private *dev_priv = dev->dev_private; - int pipe = gma_crtc->pipe; - const struct psb_offset *map = &dev_priv->regmap[pipe]; - int refclk = 0; - int clk_n = 0, clk_p2 = 0, clk_byte = 1, clk = 0, m_conv = 0, - clk_tmp = 0; - struct mrst_clock_t clock; - bool ok; - u32 dpll = 0, fp = 0; - bool is_mipi = false, is_mipi2 = false, is_hdmi = false; - struct drm_mode_config *mode_config = &dev->mode_config; - struct gma_encoder *gma_encoder = NULL; - uint64_t scalingType = DRM_MODE_SCALE_FULLSCREEN; - struct drm_encoder *encoder; - struct drm_connector *connector; - int timeout = 0; - int ret; - - dev_dbg(dev->dev, "pipe = 0x%x\n", pipe); - - ret = check_fb(crtc->primary->fb); - if (ret) - return ret; - - dev_dbg(dev->dev, "adjusted_hdisplay = %d\n", - adjusted_mode->hdisplay); - dev_dbg(dev->dev, "adjusted_vdisplay = %d\n", - adjusted_mode->vdisplay); - dev_dbg(dev->dev, "adjusted_hsync_start = %d\n", - adjusted_mode->hsync_start); - dev_dbg(dev->dev, "adjusted_hsync_end = %d\n", - adjusted_mode->hsync_end); - dev_dbg(dev->dev, "adjusted_htotal = %d\n", - adjusted_mode->htotal); - dev_dbg(dev->dev, "adjusted_vsync_start = %d\n", - adjusted_mode->vsync_start); - dev_dbg(dev->dev, "adjusted_vsync_end = %d\n", - adjusted_mode->vsync_end); - dev_dbg(dev->dev, "adjusted_vtotal = %d\n", - adjusted_mode->vtotal); - dev_dbg(dev->dev, "adjusted_clock = %d\n", - adjusted_mode->clock); - dev_dbg(dev->dev, "hdisplay = %d\n", - mode->hdisplay); - dev_dbg(dev->dev, "vdisplay = %d\n", - mode->vdisplay); - - if (!gma_power_begin(dev, true)) - return 0; - - memcpy(&gma_crtc->saved_mode, mode, - sizeof(struct drm_display_mode)); - memcpy(&gma_crtc->saved_adjusted_mode, adjusted_mode, - sizeof(struct drm_display_mode)); - - list_for_each_entry(connector, &mode_config->connector_list, head) { - encoder = connector->encoder; - if (!encoder) - continue; - - if (encoder->crtc != crtc) - continue; - - gma_encoder = gma_attached_encoder(connector); - - switch (gma_encoder->type) { - case INTEL_OUTPUT_MIPI: - is_mipi = true; - break; - case INTEL_OUTPUT_MIPI2: - is_mipi2 = true; - break; - case INTEL_OUTPUT_HDMI: - is_hdmi = true; - break; - } - } - - /* Disable the VGA plane that we never use */ - REG_WRITE(VGACNTRL, VGA_DISP_DISABLE); - - /* Disable the panel fitter if it was on our pipe */ - if (psb_intel_panel_fitter_pipe(dev) == pipe) - REG_WRITE(PFIT_CONTROL, 0); - - /* pipesrc and dspsize control the size that is scaled from, - * which should always be the user's requested size. - */ - if (pipe == 1) { - /* FIXME: To make HDMI display with 864x480 (TPO), 480x864 - * (PYR) or 480x854 (TMD), set the sprite width/height and - * souce image size registers with the adjusted mode for - * pipe B. - */ - - /* - * The defined sprite rectangle must always be completely - * contained within the displayable area of the screen image - * (frame buffer). - */ - REG_WRITE(map->size, ((min(mode->crtc_vdisplay, adjusted_mode->crtc_vdisplay) - 1) << 16) - | (min(mode->crtc_hdisplay, adjusted_mode->crtc_hdisplay) - 1)); - /* Set the CRTC with encoder mode. */ - REG_WRITE(map->src, ((mode->crtc_hdisplay - 1) << 16) - | (mode->crtc_vdisplay - 1)); - } else { - REG_WRITE(map->size, - ((mode->crtc_vdisplay - 1) << 16) | - (mode->crtc_hdisplay - 1)); - REG_WRITE(map->src, - ((mode->crtc_hdisplay - 1) << 16) | - (mode->crtc_vdisplay - 1)); - } - - REG_WRITE(map->pos, 0); - - if (gma_encoder) - drm_object_property_get_value(&connector->base, - dev->mode_config.scaling_mode_property, &scalingType); - - if (scalingType == DRM_MODE_SCALE_NO_SCALE) { - /* Medfield doesn't have register support for centering so we - * need to mess with the h/vblank and h/vsync start and ends - * to get centering - */ - int offsetX = 0, offsetY = 0; - - offsetX = (adjusted_mode->crtc_hdisplay - - mode->crtc_hdisplay) / 2; - offsetY = (adjusted_mode->crtc_vdisplay - - mode->crtc_vdisplay) / 2; - - REG_WRITE(map->htotal, (mode->crtc_hdisplay - 1) | - ((adjusted_mode->crtc_htotal - 1) << 16)); - REG_WRITE(map->vtotal, (mode->crtc_vdisplay - 1) | - ((adjusted_mode->crtc_vtotal - 1) << 16)); - REG_WRITE(map->hblank, (adjusted_mode->crtc_hblank_start - - offsetX - 1) | - ((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16)); - REG_WRITE(map->hsync, (adjusted_mode->crtc_hsync_start - - offsetX - 1) | - ((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16)); - REG_WRITE(map->vblank, (adjusted_mode->crtc_vblank_start - - offsetY - 1) | - ((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16)); - REG_WRITE(map->vsync, (adjusted_mode->crtc_vsync_start - - offsetY - 1) | - ((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16)); - } else { - REG_WRITE(map->htotal, (adjusted_mode->crtc_hdisplay - 1) | - ((adjusted_mode->crtc_htotal - 1) << 16)); - REG_WRITE(map->vtotal, (adjusted_mode->crtc_vdisplay - 1) | - ((adjusted_mode->crtc_vtotal - 1) << 16)); - REG_WRITE(map->hblank, (adjusted_mode->crtc_hblank_start - 1) | - ((adjusted_mode->crtc_hblank_end - 1) << 16)); - REG_WRITE(map->hsync, (adjusted_mode->crtc_hsync_start - 1) | - ((adjusted_mode->crtc_hsync_end - 1) << 16)); - REG_WRITE(map->vblank, (adjusted_mode->crtc_vblank_start - 1) | - ((adjusted_mode->crtc_vblank_end - 1) << 16)); - REG_WRITE(map->vsync, (adjusted_mode->crtc_vsync_start - 1) | - ((adjusted_mode->crtc_vsync_end - 1) << 16)); - } - - /* Flush the plane changes */ - { - const struct drm_crtc_helper_funcs *crtc_funcs = - crtc->helper_private; - crtc_funcs->mode_set_base(crtc, x, y, old_fb); - } - - /* setup pipeconf */ - dev_priv->pipeconf[pipe] = PIPEACONF_ENABLE; /* FIXME_JLIU7 REG_READ(pipeconf_reg); */ - - /* Set up the display plane register */ - dev_priv->dspcntr[pipe] = REG_READ(map->cntr); - dev_priv->dspcntr[pipe] |= pipe << DISPPLANE_SEL_PIPE_POS; - dev_priv->dspcntr[pipe] |= DISPLAY_PLANE_ENABLE; - - if (is_mipi2) - goto mrst_crtc_mode_set_exit; - clk = adjusted_mode->clock; - - if (is_hdmi) { - if ((ksel == KSEL_CRYSTAL_19) || (ksel == KSEL_BYPASS_19)) { - refclk = 19200; - - if (is_mipi || is_mipi2) - clk_n = 1, clk_p2 = 8; - else if (is_hdmi) - clk_n = 1, clk_p2 = 10; - } else if (ksel == KSEL_BYPASS_25) { - refclk = 25000; - - if (is_mipi || is_mipi2) - clk_n = 1, clk_p2 = 8; - else if (is_hdmi) - clk_n = 1, clk_p2 = 10; - } else if ((ksel == KSEL_BYPASS_83_100) && - dev_priv->core_freq == 166) { - refclk = 83000; - - if (is_mipi || is_mipi2) - clk_n = 4, clk_p2 = 8; - else if (is_hdmi) - clk_n = 4, clk_p2 = 10; - } else if ((ksel == KSEL_BYPASS_83_100) && - (dev_priv->core_freq == 100 || - dev_priv->core_freq == 200)) { - refclk = 100000; - if (is_mipi || is_mipi2) - clk_n = 4, clk_p2 = 8; - else if (is_hdmi) - clk_n = 4, clk_p2 = 10; - } - - if (is_mipi) - clk_byte = dev_priv->bpp / 8; - else if (is_mipi2) - clk_byte = dev_priv->bpp2 / 8; - - clk_tmp = clk * clk_n * clk_p2 * clk_byte; - - dev_dbg(dev->dev, "clk = %d, clk_n = %d, clk_p2 = %d.\n", - clk, clk_n, clk_p2); - dev_dbg(dev->dev, "adjusted_mode->clock = %d, clk_tmp = %d.\n", - adjusted_mode->clock, clk_tmp); - - ok = mdfldFindBestPLL(crtc, clk_tmp, refclk, &clock); - - if (!ok) { - DRM_ERROR - ("mdfldFindBestPLL fail in mdfld_crtc_mode_set.\n"); - } else { - m_conv = mdfld_m_converts[(clock.m - MDFLD_M_MIN)]; - - dev_dbg(dev->dev, "dot clock = %d," - "m = %d, p1 = %d, m_conv = %d.\n", - clock.dot, clock.m, - clock.p1, m_conv); - } - - dpll = REG_READ(map->dpll); - - if (dpll & DPLL_VCO_ENABLE) { - dpll &= ~DPLL_VCO_ENABLE; - REG_WRITE(map->dpll, dpll); - REG_READ(map->dpll); - - /* FIXME jliu7 check the DPLL lock bit PIPEACONF[29] */ - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(500); - - /* reset M1, N1 & P1 */ - REG_WRITE(map->fp0, 0); - dpll &= ~MDFLD_P1_MASK; - REG_WRITE(map->dpll, dpll); - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(500); - } - - /* When ungating power of DPLL, needs to wait 0.5us before - * enable the VCO */ - if (dpll & MDFLD_PWR_GATE_EN) { - dpll &= ~MDFLD_PWR_GATE_EN; - REG_WRITE(map->dpll, dpll); - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(500); - } - dpll = 0; - - if (is_hdmi) - dpll |= MDFLD_VCO_SEL; - - fp = (clk_n / 2) << 16; - fp |= m_conv; - - /* compute bitmask from p1 value */ - dpll |= (1 << (clock.p1 - 2)) << 17; - - } else { - dpll = 0x00800000; - fp = 0x000000c1; - } - - REG_WRITE(map->fp0, fp); - REG_WRITE(map->dpll, dpll); - /* FIXME_MDFLD PO - change 500 to 1 after PO */ - udelay(500); - - dpll |= DPLL_VCO_ENABLE; - REG_WRITE(map->dpll, dpll); - REG_READ(map->dpll); - - /* wait for DSI PLL to lock */ - while (timeout < 20000 && - !(REG_READ(map->conf) & PIPECONF_DSIPLL_LOCK)) { - udelay(150); - timeout++; - } - - if (is_mipi) - goto mrst_crtc_mode_set_exit; - - dev_dbg(dev->dev, "is_mipi = 0x%x\n", is_mipi); - - REG_WRITE(map->conf, dev_priv->pipeconf[pipe]); - REG_READ(map->conf); - - /* Wait for for the pipe enable to take effect. */ - REG_WRITE(map->cntr, dev_priv->dspcntr[pipe]); - gma_wait_for_vblank(dev); - -mrst_crtc_mode_set_exit: - - gma_power_end(dev); - - return 0; -} - -const struct drm_crtc_helper_funcs mdfld_helper_funcs = { - .dpms = mdfld_crtc_dpms, - .mode_set = mdfld_crtc_mode_set, - .mode_set_base = mdfld__intel_pipe_set_base, - .prepare = gma_crtc_prepare, - .commit = gma_crtc_commit, -}; |