gma500: initial medfield merge
We need to merge this ahead of some of the cleanup because a lot of needed
cleanup spans both new and old chips. If we try and clean up and the merge
we end up fighting ourselves.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[With a load of the cleanup stuff folded in, register stuff reworked sanely]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/gma500/mdfld_intel_display.c b/drivers/gpu/drm/gma500/mdfld_intel_display.c
new file mode 100644
index 0000000..55e5af5
--- /dev/null
+++ b/drivers/gpu/drm/gma500/mdfld_intel_display.c
@@ -0,0 +1,1192 @@
+/*
+ * Copyright © 2006-2007 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ */
+
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include "psb_intel_reg.h"
+#include "psb_intel_display.h"
+#include "framebuffer.h"
+#include "mdfld_output.h"
+#include "mdfld_dsi_output.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)
+{
+ int count, temp;
+ u32 pipeconf_reg = PIPEACONF;
+
+ switch (pipe) {
+ case 0:
+ break;
+ case 1:
+ pipeconf_reg = PIPEBCONF;
+ break;
+ case 2:
+ pipeconf_reg = PIPECCONF;
+ break;
+ default:
+ DRM_ERROR("Illegal Pipe Number.\n");
+ return;
+ }
+
+ /* FIXME JLIU7_PO */
+ psb_intel_wait_for_vblank(dev);
+ return;
+
+ /* Wait for for the pipe disable to take effect. */
+ for (count = 0; count < COUNT_MAX; count++) {
+ temp = REG_READ(pipeconf_reg);
+ if ((temp & PIPEACONF_PIPE_STATE) == 0)
+ break;
+ }
+}
+
+void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe)
+{
+ int count, temp;
+ u32 pipeconf_reg = PIPEACONF;
+
+ switch (pipe) {
+ case 0:
+ break;
+ case 1:
+ pipeconf_reg = PIPEBCONF;
+ break;
+ case 2:
+ pipeconf_reg = PIPECCONF;
+ break;
+ default:
+ DRM_ERROR("Illegal Pipe Number.\n");
+ return;
+ }
+
+ /* FIXME JLIU7_PO */
+ psb_intel_wait_for_vblank(dev);
+ return;
+
+ /* Wait for for the pipe enable to take effect. */
+ for (count = 0; count < COUNT_MAX; count++) {
+ temp = REG_READ(pipeconf_reg);
+ if ((temp & PIPEACONF_PIPE_STATE) == 1)
+ break;
+ }
+}
+
+static void psb_intel_crtc_prepare(struct drm_crtc *crtc)
+{
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void psb_intel_crtc_commit(struct drm_crtc *crtc)
+{
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+static bool psb_intel_crtc_mode_fixup(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+/**
+ * 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 struct drm_device globle_dev;
+
+void mdfld__intel_plane_set_alpha(int enable)
+{
+ struct drm_device *dev = &globle_dev;
+ int dspcntr_reg = DSPACNTR;
+ u32 dspcntr;
+
+ dspcntr = REG_READ(dspcntr_reg);
+
+ if (enable) {
+ dspcntr &= ~DISPPLANE_32BPP_NO_ALPHA;
+ dspcntr |= DISPPLANE_32BPP;
+ } else {
+ dspcntr &= ~DISPPLANE_32BPP;
+ dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+ }
+
+ REG_WRITE(dspcntr_reg, dspcntr);
+}
+
+static int check_fb(struct drm_framebuffer *fb)
+{
+ if (!fb)
+ return 0;
+
+ switch (fb->bits_per_pixel) {
+ 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_i915_master_private *master_priv; */
+ struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+ struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
+ int pipe = psb_intel_crtc->pipe;
+ unsigned long start, offset;
+ int dsplinoff = DSPALINOFF;
+ int dspsurf = DSPASURF;
+ int dspstride = DSPASTRIDE;
+ int dspcntr_reg = DSPACNTR;
+ u32 dspcntr;
+ int ret;
+
+ memcpy(&globle_dev, dev, sizeof(struct drm_device));
+
+ dev_dbg(dev->dev, "pipe = 0x%x.\n", pipe);
+
+ /* no fb bound */
+ if (!crtc->fb) {
+ dev_dbg(dev->dev, "No FB bound\n");
+ return 0;
+ }
+
+ ret = check_fb(crtc->fb);
+ if (ret)
+ return ret;
+
+ switch (pipe) {
+ case 0:
+ dsplinoff = DSPALINOFF;
+ break;
+ case 1:
+ dsplinoff = DSPBLINOFF;
+ dspsurf = DSPBSURF;
+ dspstride = DSPBSTRIDE;
+ dspcntr_reg = DSPBCNTR;
+ break;
+ case 2:
+ dsplinoff = DSPCLINOFF;
+ dspsurf = DSPCSURF;
+ dspstride = DSPCSTRIDE;
+ dspcntr_reg = DSPCCNTR;
+ break;
+ default:
+ DRM_ERROR("Illegal Pipe Number.\n");
+ return -EINVAL;
+ }
+
+ if (!gma_power_begin(dev, true))
+ return 0;
+
+ start = psbfb->gtt->offset;
+ offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
+
+ REG_WRITE(dspstride, crtc->fb->pitches[0]);
+ dspcntr = REG_READ(dspcntr_reg);
+ dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+
+ switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ dspcntr |= DISPPLANE_8BPP;
+ break;
+ case 16:
+ if (crtc->fb->depth == 15)
+ dspcntr |= DISPPLANE_15_16BPP;
+ else
+ dspcntr |= DISPPLANE_16BPP;
+ break;
+ case 24:
+ case 32:
+ dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+ break;
+ }
+ REG_WRITE(dspcntr_reg, dspcntr);
+
+ dev_dbg(dev->dev, "Writing base %08lX %08lX %d %d\n",
+ start, offset, x, y);
+ REG_WRITE(dsplinoff, offset);
+ REG_READ(dsplinoff);
+ REG_WRITE(dspsurf, start);
+ REG_READ(dspsurf);
+
+ gma_power_end(dev);
+
+ return 0;
+}
+
+/*
+ * Disable the pipe, plane and pll.
+ *
+ */
+void mdfld_disable_crtc(struct drm_device *dev, int pipe)
+{
+ int dpll_reg = MRST_DPLL_A;
+ int dspcntr_reg = DSPACNTR;
+ int dspbase_reg = MRST_DSPABASE;
+ int pipeconf_reg = PIPEACONF;
+ u32 temp;
+
+ dev_dbg(dev->dev, "pipe = %d\n", pipe);
+
+
+ switch (pipe) {
+ case 0:
+ break;
+ case 1:
+ dpll_reg = MDFLD_DPLL_B;
+ dspcntr_reg = DSPBCNTR;
+ dspbase_reg = DSPBSURF;
+ pipeconf_reg = PIPEBCONF;
+ break;
+ case 2:
+ dpll_reg = MRST_DPLL_A;
+ dspcntr_reg = DSPCCNTR;
+ dspbase_reg = MDFLD_DSPCBASE;
+ pipeconf_reg = PIPECCONF;
+ break;
+ default:
+ DRM_ERROR("Illegal Pipe Number.\n");
+ return;
+ }
+
+ 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(dspcntr_reg);
+ if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+ REG_WRITE(dspcntr_reg,
+ temp & ~DISPLAY_PLANE_ENABLE);
+ /* Flush the plane changes */
+ REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+ REG_READ(dspbase_reg);
+ }
+
+ /* FIXME_JLIU7 MDFLD_PO revisit */
+
+ /* Next, disable display pipes */
+ temp = REG_READ(pipeconf_reg);
+ if ((temp & PIPEACONF_ENABLE) != 0) {
+ temp &= ~PIPEACONF_ENABLE;
+ temp |= PIPECONF_PLANE_OFF | PIPECONF_CURSOR_OFF;
+ REG_WRITE(pipeconf_reg, temp);
+ REG_READ(pipeconf_reg);
+
+ /* Wait for for the pipe disable to take effect. */
+ mdfldWaitForPipeDisable(dev, pipe);
+ }
+
+ temp = REG_READ(dpll_reg);
+ if (temp & DPLL_VCO_ENABLE) {
+ if ((pipe != 1 &&
+ !((REG_READ(PIPEACONF) | REG_READ(PIPECCONF))
+ & PIPEACONF_ENABLE)) || pipe == 1) {
+ temp &= ~(DPLL_VCO_ENABLE);
+ REG_WRITE(dpll_reg, temp);
+ REG_READ(dpll_reg);
+ /* 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(dpll_reg, 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 psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+ int pipe = psb_intel_crtc->pipe;
+ int dpll_reg = MRST_DPLL_A;
+ int dspcntr_reg = DSPACNTR;
+ int dspbase_reg = MRST_DSPABASE;
+ int pipeconf_reg = PIPEACONF;
+ u32 pipestat_reg = PIPEASTAT;
+ u32 pipeconf = dev_priv->pipeconf[pipe];
+ u32 temp;
+ bool enabled;
+ int timeout = 0;
+
+ dev_dbg(dev->dev, "mode = %d, pipe = %d\n", mode, pipe);
+
+/* FIXME_JLIU7 MDFLD_PO replaced w/ the following function */
+/* mdfld_dbi_dpms (struct drm_device *dev, int pipe, bool enabled) */
+
+ switch (pipe) {
+ case 0:
+ break;
+ case 1:
+ dpll_reg = DPLL_B;
+ dspcntr_reg = DSPBCNTR;
+ dspbase_reg = MRST_DSPBBASE;
+ pipeconf_reg = PIPEBCONF;
+ dpll_reg = MDFLD_DPLL_B;
+ break;
+ case 2:
+ dpll_reg = MRST_DPLL_A;
+ dspcntr_reg = DSPCCNTR;
+ dspbase_reg = MDFLD_DSPCBASE;
+ pipeconf_reg = PIPECCONF;
+ pipestat_reg = PIPECSTAT;
+ break;
+ default:
+ DRM_ERROR("Illegal Pipe Number.\n");
+ return;
+ }
+
+ 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(dpll_reg);
+
+ 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(dpll_reg, temp);
+ /* FIXME_MDFLD PO - change 500 to 1 after PO */
+ udelay(500);
+ }
+
+ REG_WRITE(dpll_reg, temp);
+ REG_READ(dpll_reg);
+ /* FIXME_MDFLD PO - change 500 to 1 after PO */
+ udelay(500);
+
+ REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+ REG_READ(dpll_reg);
+
+ /**
+ * 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(pipeconf_reg) & PIPECONF_DSIPLL_LOCK)) {
+ udelay(150);
+ timeout++;
+ }
+ }
+
+ /* Enable the plane */
+ temp = REG_READ(dspcntr_reg);
+ if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
+ REG_WRITE(dspcntr_reg,
+ temp | DISPLAY_PLANE_ENABLE);
+ /* Flush the plane changes */
+ REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+ }
+
+ /* Enable the pipe */
+ temp = REG_READ(pipeconf_reg);
+ if ((temp & PIPEACONF_ENABLE) == 0) {
+ REG_WRITE(pipeconf_reg, 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(pipestat_reg, REG_READ(pipestat_reg));
+ msleep(100);
+ if (PIPE_VBLANK_STATUS & REG_READ(pipestat_reg))
+ dev_dbg(dev->dev, "OK");
+ else {
+ dev_dbg(dev->dev, "STUCK!!!!");
+ /*shutdown controller*/
+ temp = REG_READ(dspcntr_reg);
+ REG_WRITE(dspcntr_reg,
+ temp & ~DISPLAY_PLANE_ENABLE);
+ REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+ /*mdfld_dsi_dpi_shut_down(dev, pipe);*/
+ REG_WRITE(0xb048, 1);
+ msleep(100);
+ temp = REG_READ(pipeconf_reg);
+ temp &= ~PIPEACONF_ENABLE;
+ REG_WRITE(pipeconf_reg, 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(dspcntr_reg);
+ REG_WRITE(dspcntr_reg,
+ temp | DISPLAY_PLANE_ENABLE);
+ REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+ /*mdfld_dsi_dpi_turn_on(dev, pipe);*/
+ REG_WRITE(0xb048, 2);
+ msleep(100);
+ temp = REG_READ(pipeconf_reg);
+ temp |= PIPEACONF_ENABLE;
+ REG_WRITE(pipeconf_reg, temp);
+ }
+ }
+
+ psb_intel_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(dspcntr_reg);
+ if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+ REG_WRITE(dspcntr_reg,
+ temp & ~DISPLAY_PLANE_ENABLE);
+ /* Flush the plane changes */
+ REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+ REG_READ(dspbase_reg);
+ }
+
+ /* Next, disable display pipes */
+ temp = REG_READ(pipeconf_reg);
+ if ((temp & PIPEACONF_ENABLE) != 0) {
+ temp &= ~PIPEACONF_ENABLE;
+ temp |= PIPECONF_PLANE_OFF | PIPECONF_CURSOR_OFF;
+ REG_WRITE(pipeconf_reg, temp);
+ REG_READ(pipeconf_reg);
+
+ /* Wait for for the pipe disable to take effect. */
+ mdfldWaitForPipeDisable(dev, pipe);
+ }
+
+ temp = REG_READ(dpll_reg);
+ if (temp & DPLL_VCO_ENABLE) {
+ if ((pipe != 1 && !((REG_READ(PIPEACONF)
+ | REG_READ(PIPECCONF)) & PIPEACONF_ENABLE))
+ || pipe == 1) {
+ temp &= ~(DPLL_VCO_ENABLE);
+ REG_WRITE(dpll_reg, temp);
+ REG_READ(dpll_reg);
+ /* Wait for the clocks to turn off. */
+ /* FIXME_MDFLD PO may need more delay */
+ udelay(500);
+ }
+ }
+ break;
+ }
+ enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
+ 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 (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_MIPI)
+ || psb_intel_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 (psb_intel_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 psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ int pipe = psb_intel_crtc->pipe;
+ int fp_reg = MRST_FPA0;
+ int dpll_reg = MRST_DPLL_A;
+ int dspcntr_reg = DSPACNTR;
+ int pipeconf_reg = PIPEACONF;
+ int htot_reg = HTOTAL_A;
+ int hblank_reg = HBLANK_A;
+ int hsync_reg = HSYNC_A;
+ int vtot_reg = VTOTAL_A;
+ int vblank_reg = VBLANK_A;
+ int vsync_reg = VSYNC_A;
+ int dspsize_reg = DSPASIZE;
+ int dsppos_reg = DSPAPOS;
+ int pipesrc_reg = PIPEASRC;
+ u32 *pipeconf = &dev_priv->pipeconf[pipe];
+ u32 *dspcntr = &dev_priv->dspcntr[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_crt = false, is_lvds = false, is_tv = false;
+ bool is_mipi = false, is_mipi2 = false, is_hdmi = false;
+ struct drm_mode_config *mode_config = &dev->mode_config;
+ struct psb_intel_encoder *psb_intel_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);
+
+#if 0
+ if (pipe == 1) {
+ if (!gma_power_begin(dev, true))
+ return 0;
+ android_hdmi_crtc_mode_set(crtc, mode, adjusted_mode,
+ x, y, old_fb);
+ goto mrst_crtc_mode_set_exit;
+ }
+#endif
+
+ switch (pipe) {
+ case 0:
+ break;
+ case 1:
+ fp_reg = FPB0;
+ dpll_reg = DPLL_B;
+ dspcntr_reg = DSPBCNTR;
+ pipeconf_reg = PIPEBCONF;
+ htot_reg = HTOTAL_B;
+ hblank_reg = HBLANK_B;
+ hsync_reg = HSYNC_B;
+ vtot_reg = VTOTAL_B;
+ vblank_reg = VBLANK_B;
+ vsync_reg = VSYNC_B;
+ dspsize_reg = DSPBSIZE;
+ dsppos_reg = DSPBPOS;
+ pipesrc_reg = PIPEBSRC;
+ fp_reg = MDFLD_DPLL_DIV0;
+ dpll_reg = MDFLD_DPLL_B;
+ break;
+ case 2:
+ dpll_reg = MRST_DPLL_A;
+ dspcntr_reg = DSPCCNTR;
+ pipeconf_reg = PIPECCONF;
+ htot_reg = HTOTAL_C;
+ hblank_reg = HBLANK_C;
+ hsync_reg = HSYNC_C;
+ vtot_reg = VTOTAL_C;
+ vblank_reg = VBLANK_C;
+ vsync_reg = VSYNC_C;
+ dspsize_reg = DSPCSIZE;
+ dsppos_reg = DSPCPOS;
+ pipesrc_reg = PIPECSRC;
+ break;
+ default:
+ DRM_ERROR("Illegal Pipe Number.\n");
+ return 0;
+ }
+
+ ret = check_fb(crtc->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(&psb_intel_crtc->saved_mode, mode,
+ sizeof(struct drm_display_mode));
+ memcpy(&psb_intel_crtc->saved_adjusted_mode, adjusted_mode,
+ sizeof(struct drm_display_mode));
+
+ list_for_each_entry(connector, &mode_config->connector_list, head) {
+ if (!connector)
+ continue;
+
+ encoder = connector->encoder;
+
+ if (!encoder)
+ continue;
+
+ if (encoder->crtc != crtc)
+ continue;
+
+ psb_intel_encoder = psb_intel_attached_encoder(connector);
+
+ switch (psb_intel_encoder->type) {
+ case INTEL_OUTPUT_LVDS:
+ is_lvds = true;
+ break;
+ case INTEL_OUTPUT_TVOUT:
+ is_tv = true;
+ break;
+ case INTEL_OUTPUT_ANALOG:
+ is_crt = true;
+ break;
+ 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(dspsize_reg, ((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(pipesrc_reg, ((mode->crtc_hdisplay - 1) << 16)
+ | (mode->crtc_vdisplay - 1));
+ } else {
+ REG_WRITE(dspsize_reg,
+ ((mode->crtc_vdisplay - 1) << 16) |
+ (mode->crtc_hdisplay - 1));
+ REG_WRITE(pipesrc_reg,
+ ((mode->crtc_hdisplay - 1) << 16) |
+ (mode->crtc_vdisplay - 1));
+ }
+
+ REG_WRITE(dsppos_reg, 0);
+
+ if (psb_intel_encoder)
+ drm_connector_property_get_value(connector,
+ 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(htot_reg, (mode->crtc_hdisplay - 1) |
+ ((adjusted_mode->crtc_htotal - 1) << 16));
+ REG_WRITE(vtot_reg, (mode->crtc_vdisplay - 1) |
+ ((adjusted_mode->crtc_vtotal - 1) << 16));
+ REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start -
+ offsetX - 1) |
+ ((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16));
+ REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start -
+ offsetX - 1) |
+ ((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16));
+ REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start -
+ offsetY - 1) |
+ ((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16));
+ REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start -
+ offsetY - 1) |
+ ((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16));
+ } else {
+ REG_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) |
+ ((adjusted_mode->crtc_htotal - 1) << 16));
+ REG_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) |
+ ((adjusted_mode->crtc_vtotal - 1) << 16));
+ REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) |
+ ((adjusted_mode->crtc_hblank_end - 1) << 16));
+ REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) |
+ ((adjusted_mode->crtc_hsync_end - 1) << 16));
+ REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) |
+ ((adjusted_mode->crtc_vblank_end - 1) << 16));
+ REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) |
+ ((adjusted_mode->crtc_vsync_end - 1) << 16));
+ }
+
+ /* Flush the plane changes */
+ {
+ struct drm_crtc_helper_funcs *crtc_funcs =
+ crtc->helper_private;
+ crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+ }
+
+ /* setup pipeconf */
+ *pipeconf = PIPEACONF_ENABLE; /* FIXME_JLIU7 REG_READ(pipeconf_reg); */
+
+ /* Set up the display plane register */
+ *dspcntr = REG_READ(dspcntr_reg);
+ *dspcntr |= pipe << DISPPLANE_SEL_PIPE_POS;
+ *dspcntr |= 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(dpll_reg);
+
+ if (dpll & DPLL_VCO_ENABLE) {
+ dpll &= ~DPLL_VCO_ENABLE;
+ REG_WRITE(dpll_reg, dpll);
+ REG_READ(dpll_reg);
+
+ /* 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(fp_reg, 0);
+ dpll &= ~MDFLD_P1_MASK;
+ REG_WRITE(dpll_reg, 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(dpll_reg, dpll);
+ /* FIXME_MDFLD PO - change 500 to 1 after PO */
+ udelay(500);
+ }
+ dpll = 0;
+
+#if 0 /* FIXME revisit later */
+ if (ksel == KSEL_CRYSTAL_19 || ksel == KSEL_BYPASS_19 ||
+ ksel == KSEL_BYPASS_25)
+ dpll &= ~MDFLD_INPUT_REF_SEL;
+ else if (ksel == KSEL_BYPASS_83_100)
+ dpll |= MDFLD_INPUT_REF_SEL;
+#endif /* FIXME revisit later */
+
+ 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;
+
+#if 0 /* 1080p30 & 720p */
+ dpll = 0x00050000;
+ fp = 0x000001be;
+#endif
+#if 0 /* 480p */
+ dpll = 0x02010000;
+ fp = 0x000000d2;
+#endif
+ } else {
+#if 0 /*DBI_TPO_480x864*/
+ dpll = 0x00020000;
+ fp = 0x00000156;
+#endif /* DBI_TPO_480x864 */ /* get from spec. */
+
+ dpll = 0x00800000;
+ fp = 0x000000c1;
+ }
+
+ REG_WRITE(fp_reg, fp);
+ REG_WRITE(dpll_reg, dpll);
+ /* FIXME_MDFLD PO - change 500 to 1 after PO */
+ udelay(500);
+
+ dpll |= DPLL_VCO_ENABLE;
+ REG_WRITE(dpll_reg, dpll);
+ REG_READ(dpll_reg);
+
+ /* wait for DSI PLL to lock */
+ while (timeout < 20000 &&
+ !(REG_READ(pipeconf_reg) & 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(pipeconf_reg, *pipeconf);
+ REG_READ(pipeconf_reg);
+
+ /* Wait for for the pipe enable to take effect. */
+ REG_WRITE(dspcntr_reg, *dspcntr);
+ psb_intel_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_fixup = psb_intel_crtc_mode_fixup,
+ .mode_set = mdfld_crtc_mode_set,
+ .mode_set_base = mdfld__intel_pipe_set_base,
+ .prepare = psb_intel_crtc_prepare,
+ .commit = psb_intel_crtc_commit,
+};
+