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path: root/drivers/gpu/drm/gma500/mdfld_device.c
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Diffstat (limited to 'drivers/gpu/drm/gma500/mdfld_device.c')
-rw-r--r--drivers/gpu/drm/gma500/mdfld_device.c562
1 files changed, 0 insertions, 562 deletions
diff --git a/drivers/gpu/drm/gma500/mdfld_device.c b/drivers/gpu/drm/gma500/mdfld_device.c
deleted file mode 100644
index b83d59b21de5..000000000000
--- a/drivers/gpu/drm/gma500/mdfld_device.c
+++ /dev/null
@@ -1,562 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/**************************************************************************
- * Copyright (c) 2011, Intel Corporation.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-#include <linux/delay.h>
-#include <linux/gpio/machine.h>
-
-#include <asm/intel_scu_ipc.h>
-
-#include "mdfld_dsi_output.h"
-#include "mdfld_output.h"
-#include "mid_bios.h"
-#include "psb_drv.h"
-#include "tc35876x-dsi-lvds.h"
-
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-
-#define MRST_BLC_MAX_PWM_REG_FREQ 0xFFFF
-#define BLC_PWM_PRECISION_FACTOR 100 /* 10000000 */
-#define BLC_PWM_FREQ_CALC_CONSTANT 32
-#define MHz 1000000
-#define BRIGHTNESS_MIN_LEVEL 1
-#define BRIGHTNESS_MAX_LEVEL 100
-#define BRIGHTNESS_MASK 0xFF
-#define BLC_POLARITY_NORMAL 0
-#define BLC_POLARITY_INVERSE 1
-#define BLC_ADJUSTMENT_MAX 100
-
-#define MDFLD_BLC_PWM_PRECISION_FACTOR 10
-#define MDFLD_BLC_MAX_PWM_REG_FREQ 0xFFFE
-#define MDFLD_BLC_MIN_PWM_REG_FREQ 0x2
-
-#define MDFLD_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
-#define MDFLD_BACKLIGHT_PWM_CTL_SHIFT (16)
-
-static struct backlight_device *mdfld_backlight_device;
-
-int mdfld_set_brightness(struct backlight_device *bd)
-{
- struct drm_device *dev =
- (struct drm_device *)bl_get_data(mdfld_backlight_device);
- struct drm_psb_private *dev_priv = dev->dev_private;
- int level = bd->props.brightness;
-
- DRM_DEBUG_DRIVER("backlight level set to %d\n", level);
-
- /* Perform value bounds checking */
- if (level < BRIGHTNESS_MIN_LEVEL)
- level = BRIGHTNESS_MIN_LEVEL;
-
- if (gma_power_begin(dev, false)) {
- u32 adjusted_level = 0;
-
- /*
- * Adjust the backlight level with the percent in
- * dev_priv->blc_adj2
- */
- adjusted_level = level * dev_priv->blc_adj2;
- adjusted_level = adjusted_level / BLC_ADJUSTMENT_MAX;
- dev_priv->brightness_adjusted = adjusted_level;
-
- if (mdfld_get_panel_type(dev, 0) == TC35876X) {
- if (dev_priv->dpi_panel_on[0] ||
- dev_priv->dpi_panel_on[2])
- tc35876x_brightness_control(dev,
- dev_priv->brightness_adjusted);
- } else {
- if (dev_priv->dpi_panel_on[0])
- mdfld_dsi_brightness_control(dev, 0,
- dev_priv->brightness_adjusted);
- }
-
- if (dev_priv->dpi_panel_on[2])
- mdfld_dsi_brightness_control(dev, 2,
- dev_priv->brightness_adjusted);
- gma_power_end(dev);
- }
-
- /* cache the brightness for later use */
- dev_priv->brightness = level;
- return 0;
-}
-
-static int mdfld_get_brightness(struct backlight_device *bd)
-{
- struct drm_device *dev =
- (struct drm_device *)bl_get_data(mdfld_backlight_device);
- struct drm_psb_private *dev_priv = dev->dev_private;
-
- DRM_DEBUG_DRIVER("brightness = 0x%x \n", dev_priv->brightness);
-
- /* return locally cached var instead of HW read (due to DPST etc.) */
- return dev_priv->brightness;
-}
-
-static const struct backlight_ops mdfld_ops = {
- .get_brightness = mdfld_get_brightness,
- .update_status = mdfld_set_brightness,
-};
-
-static int device_backlight_init(struct drm_device *dev)
-{
- struct drm_psb_private *dev_priv = (struct drm_psb_private *)
- dev->dev_private;
-
- dev_priv->blc_adj1 = BLC_ADJUSTMENT_MAX;
- dev_priv->blc_adj2 = BLC_ADJUSTMENT_MAX;
-
- return 0;
-}
-
-static int mdfld_backlight_init(struct drm_device *dev)
-{
- struct backlight_properties props;
- int ret = 0;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = BRIGHTNESS_MAX_LEVEL;
- props.type = BACKLIGHT_PLATFORM;
- mdfld_backlight_device = backlight_device_register("mdfld-bl",
- NULL, (void *)dev, &mdfld_ops, &props);
-
- if (IS_ERR(mdfld_backlight_device))
- return PTR_ERR(mdfld_backlight_device);
-
- ret = device_backlight_init(dev);
- if (ret)
- return ret;
-
- mdfld_backlight_device->props.brightness = BRIGHTNESS_MAX_LEVEL;
- mdfld_backlight_device->props.max_brightness = BRIGHTNESS_MAX_LEVEL;
- backlight_update_status(mdfld_backlight_device);
- return 0;
-}
-#endif
-
-struct backlight_device *mdfld_get_backlight_device(void)
-{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
- return mdfld_backlight_device;
-#else
- return NULL;
-#endif
-}
-
-/*
- * mdfld_save_display_registers
- *
- * Description: We are going to suspend so save current display
- * register state.
- *
- * Notes: FIXME_JLIU7 need to add the support for DPI MIPI & HDMI audio
- */
-static int mdfld_save_display_registers(struct drm_device *dev, int pipenum)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
- struct medfield_state *regs = &dev_priv->regs.mdfld;
- struct psb_pipe *pipe = &dev_priv->regs.pipe[pipenum];
- const struct psb_offset *map = &dev_priv->regmap[pipenum];
- int i;
- u32 *mipi_val;
-
- /* register */
- u32 mipi_reg = MIPI;
-
- switch (pipenum) {
- case 0:
- mipi_val = &regs->saveMIPI;
- break;
- case 1:
- mipi_val = &regs->saveMIPI;
- break;
- case 2:
- /* register */
- mipi_reg = MIPI_C;
- /* pointer to values */
- mipi_val = &regs->saveMIPI_C;
- break;
- default:
- DRM_ERROR("%s, invalid pipe number.\n", __func__);
- return -EINVAL;
- }
-
- /* Pipe & plane A info */
- pipe->dpll = PSB_RVDC32(map->dpll);
- pipe->fp0 = PSB_RVDC32(map->fp0);
- pipe->conf = PSB_RVDC32(map->conf);
- pipe->htotal = PSB_RVDC32(map->htotal);
- pipe->hblank = PSB_RVDC32(map->hblank);
- pipe->hsync = PSB_RVDC32(map->hsync);
- pipe->vtotal = PSB_RVDC32(map->vtotal);
- pipe->vblank = PSB_RVDC32(map->vblank);
- pipe->vsync = PSB_RVDC32(map->vsync);
- pipe->src = PSB_RVDC32(map->src);
- pipe->stride = PSB_RVDC32(map->stride);
- pipe->linoff = PSB_RVDC32(map->linoff);
- pipe->tileoff = PSB_RVDC32(map->tileoff);
- pipe->size = PSB_RVDC32(map->size);
- pipe->pos = PSB_RVDC32(map->pos);
- pipe->surf = PSB_RVDC32(map->surf);
- pipe->cntr = PSB_RVDC32(map->cntr);
- pipe->status = PSB_RVDC32(map->status);
-
- /*save palette (gamma) */
- for (i = 0; i < 256; i++)
- pipe->palette[i] = PSB_RVDC32(map->palette + (i << 2));
-
- if (pipenum == 1) {
- regs->savePFIT_CONTROL = PSB_RVDC32(PFIT_CONTROL);
- regs->savePFIT_PGM_RATIOS = PSB_RVDC32(PFIT_PGM_RATIOS);
-
- regs->saveHDMIPHYMISCCTL = PSB_RVDC32(HDMIPHYMISCCTL);
- regs->saveHDMIB_CONTROL = PSB_RVDC32(HDMIB_CONTROL);
- return 0;
- }
-
- *mipi_val = PSB_RVDC32(mipi_reg);
- return 0;
-}
-
-/*
- * mdfld_restore_display_registers
- *
- * Description: We are going to resume so restore display register state.
- *
- * Notes: FIXME_JLIU7 need to add the support for DPI MIPI & HDMI audio
- */
-static int mdfld_restore_display_registers(struct drm_device *dev, int pipenum)
-{
- /* To get panel out of ULPS mode. */
- u32 temp = 0;
- u32 device_ready_reg = DEVICE_READY_REG;
- struct drm_psb_private *dev_priv = dev->dev_private;
- struct mdfld_dsi_config *dsi_config = NULL;
- struct medfield_state *regs = &dev_priv->regs.mdfld;
- struct psb_pipe *pipe = &dev_priv->regs.pipe[pipenum];
- const struct psb_offset *map = &dev_priv->regmap[pipenum];
- u32 i;
- u32 dpll;
- u32 timeout = 0;
-
- /* register */
- u32 mipi_reg = MIPI;
-
- /* values */
- u32 dpll_val = pipe->dpll;
- u32 mipi_val = regs->saveMIPI;
-
- switch (pipenum) {
- case 0:
- dpll_val &= ~DPLL_VCO_ENABLE;
- dsi_config = dev_priv->dsi_configs[0];
- break;
- case 1:
- dpll_val &= ~DPLL_VCO_ENABLE;
- break;
- case 2:
- mipi_reg = MIPI_C;
- mipi_val = regs->saveMIPI_C;
- dsi_config = dev_priv->dsi_configs[1];
- break;
- default:
- DRM_ERROR("%s, invalid pipe number.\n", __func__);
- return -EINVAL;
- }
-
- /*make sure VGA plane is off. it initializes to on after reset!*/
- PSB_WVDC32(0x80000000, VGACNTRL);
-
- if (pipenum == 1) {
- PSB_WVDC32(dpll_val & ~DPLL_VCO_ENABLE, map->dpll);
- PSB_RVDC32(map->dpll);
-
- PSB_WVDC32(pipe->fp0, map->fp0);
- } else {
-
- dpll = PSB_RVDC32(map->dpll);
-
- if (!(dpll & DPLL_VCO_ENABLE)) {
-
- /* 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;
- PSB_WVDC32(dpll, map->dpll);
- /* FIXME_MDFLD PO - change 500 to 1 after PO */
- udelay(500);
- }
-
- PSB_WVDC32(pipe->fp0, map->fp0);
- PSB_WVDC32(dpll_val, map->dpll);
- /* FIXME_MDFLD PO - change 500 to 1 after PO */
- udelay(500);
-
- dpll_val |= DPLL_VCO_ENABLE;
- PSB_WVDC32(dpll_val, map->dpll);
- PSB_RVDC32(map->dpll);
-
- /* wait for DSI PLL to lock */
- while (timeout < 20000 &&
- !(PSB_RVDC32(map->conf) & PIPECONF_DSIPLL_LOCK)) {
- udelay(150);
- timeout++;
- }
-
- if (timeout == 20000) {
- DRM_ERROR("%s, can't lock DSIPLL.\n",
- __func__);
- return -EINVAL;
- }
- }
- }
- /* Restore mode */
- PSB_WVDC32(pipe->htotal, map->htotal);
- PSB_WVDC32(pipe->hblank, map->hblank);
- PSB_WVDC32(pipe->hsync, map->hsync);
- PSB_WVDC32(pipe->vtotal, map->vtotal);
- PSB_WVDC32(pipe->vblank, map->vblank);
- PSB_WVDC32(pipe->vsync, map->vsync);
- PSB_WVDC32(pipe->src, map->src);
- PSB_WVDC32(pipe->status, map->status);
-
- /*set up the plane*/
- PSB_WVDC32(pipe->stride, map->stride);
- PSB_WVDC32(pipe->linoff, map->linoff);
- PSB_WVDC32(pipe->tileoff, map->tileoff);
- PSB_WVDC32(pipe->size, map->size);
- PSB_WVDC32(pipe->pos, map->pos);
- PSB_WVDC32(pipe->surf, map->surf);
-
- if (pipenum == 1) {
- /* restore palette (gamma) */
- /* udelay(50000); */
- for (i = 0; i < 256; i++)
- PSB_WVDC32(pipe->palette[i], map->palette + (i << 2));
-
- PSB_WVDC32(regs->savePFIT_CONTROL, PFIT_CONTROL);
- PSB_WVDC32(regs->savePFIT_PGM_RATIOS, PFIT_PGM_RATIOS);
-
- /*TODO: resume HDMI port */
-
- /*TODO: resume pipe*/
-
- /*enable the plane*/
- PSB_WVDC32(pipe->cntr & ~DISPLAY_PLANE_ENABLE, map->cntr);
-
- return 0;
- }
-
- /*set up pipe related registers*/
- PSB_WVDC32(mipi_val, mipi_reg);
-
- /*setup MIPI adapter + MIPI IP registers*/
- if (dsi_config)
- mdfld_dsi_controller_init(dsi_config, pipenum);
-
- if (in_atomic() || in_interrupt())
- mdelay(20);
- else
- msleep(20);
-
- /*enable the plane*/
- PSB_WVDC32(pipe->cntr, map->cntr);
-
- if (in_atomic() || in_interrupt())
- mdelay(20);
- else
- msleep(20);
-
- /* LP Hold Release */
- temp = REG_READ(mipi_reg);
- temp |= LP_OUTPUT_HOLD_RELEASE;
- REG_WRITE(mipi_reg, temp);
- mdelay(1);
-
-
- /* Set DSI host to exit from Utra Low Power State */
- temp = REG_READ(device_ready_reg);
- temp &= ~ULPS_MASK;
- temp |= 0x3;
- temp |= EXIT_ULPS_DEV_READY;
- REG_WRITE(device_ready_reg, temp);
- mdelay(1);
-
- temp = REG_READ(device_ready_reg);
- temp &= ~ULPS_MASK;
- temp |= EXITING_ULPS;
- REG_WRITE(device_ready_reg, temp);
- mdelay(1);
-
- /*enable the pipe*/
- PSB_WVDC32(pipe->conf, map->conf);
-
- /* restore palette (gamma) */
- /* udelay(50000); */
- for (i = 0; i < 256; i++)
- PSB_WVDC32(pipe->palette[i], map->palette + (i << 2));
-
- return 0;
-}
-
-static int mdfld_save_registers(struct drm_device *dev)
-{
- /* mdfld_save_cursor_overlay_registers(dev); */
- mdfld_save_display_registers(dev, 0);
- mdfld_save_display_registers(dev, 2);
- mdfld_disable_crtc(dev, 0);
- mdfld_disable_crtc(dev, 2);
-
- return 0;
-}
-
-static int mdfld_restore_registers(struct drm_device *dev)
-{
- mdfld_restore_display_registers(dev, 2);
- mdfld_restore_display_registers(dev, 0);
- /* mdfld_restore_cursor_overlay_registers(dev); */
-
- return 0;
-}
-
-static int mdfld_power_down(struct drm_device *dev)
-{
- /* FIXME */
- return 0;
-}
-
-static int mdfld_power_up(struct drm_device *dev)
-{
- /* FIXME */
- return 0;
-}
-
-/* Medfield */
-static const struct psb_offset mdfld_regmap[3] = {
- {
- .fp0 = MRST_FPA0,
- .fp1 = MRST_FPA1,
- .cntr = DSPACNTR,
- .conf = PIPEACONF,
- .src = PIPEASRC,
- .dpll = MRST_DPLL_A,
- .htotal = HTOTAL_A,
- .hblank = HBLANK_A,
- .hsync = HSYNC_A,
- .vtotal = VTOTAL_A,
- .vblank = VBLANK_A,
- .vsync = VSYNC_A,
- .stride = DSPASTRIDE,
- .size = DSPASIZE,
- .pos = DSPAPOS,
- .surf = DSPASURF,
- .addr = MRST_DSPABASE,
- .status = PIPEASTAT,
- .linoff = DSPALINOFF,
- .tileoff = DSPATILEOFF,
- .palette = PALETTE_A,
- },
- {
- .fp0 = MDFLD_DPLL_DIV0,
- .cntr = DSPBCNTR,
- .conf = PIPEBCONF,
- .src = PIPEBSRC,
- .dpll = MDFLD_DPLL_B,
- .htotal = HTOTAL_B,
- .hblank = HBLANK_B,
- .hsync = HSYNC_B,
- .vtotal = VTOTAL_B,
- .vblank = VBLANK_B,
- .vsync = VSYNC_B,
- .stride = DSPBSTRIDE,
- .size = DSPBSIZE,
- .pos = DSPBPOS,
- .surf = DSPBSURF,
- .addr = MRST_DSPBBASE,
- .status = PIPEBSTAT,
- .linoff = DSPBLINOFF,
- .tileoff = DSPBTILEOFF,
- .palette = PALETTE_B,
- },
- {
- .fp0 = MRST_FPA0, /* This is what the old code did ?? */
- .cntr = DSPCCNTR,
- .conf = PIPECCONF,
- .src = PIPECSRC,
- /* No DPLL_C */
- .dpll = MRST_DPLL_A,
- .htotal = HTOTAL_C,
- .hblank = HBLANK_C,
- .hsync = HSYNC_C,
- .vtotal = VTOTAL_C,
- .vblank = VBLANK_C,
- .vsync = VSYNC_C,
- .stride = DSPCSTRIDE,
- .size = DSPBSIZE,
- .pos = DSPCPOS,
- .surf = DSPCSURF,
- .addr = MDFLD_DSPCBASE,
- .status = PIPECSTAT,
- .linoff = DSPCLINOFF,
- .tileoff = DSPCTILEOFF,
- .palette = PALETTE_C,
- },
-};
-
-/*
- * The GPIO lines for resetting DSI pipe 0 and 2 are available in the
- * PCI device 0000:00:0c.0 on the Medfield.
- */
-static struct gpiod_lookup_table mdfld_dsi_pipe_gpio_table = {
- .table = {
- GPIO_LOOKUP("0000:00:0c.0", 128, "dsi-pipe0-reset",
- GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("0000:00:0c.0", 34, "dsi-pipe2-reset",
- GPIO_ACTIVE_HIGH),
- { },
- },
-};
-
-static int mdfld_chip_setup(struct drm_device *dev)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
- if (pci_enable_msi(dev->pdev))
- dev_warn(dev->dev, "Enabling MSI failed!\n");
- dev_priv->regmap = mdfld_regmap;
-
- /* Associate the GPIO lines with the DRM device */
- mdfld_dsi_pipe_gpio_table.dev_id = dev_name(dev->dev);
- gpiod_add_lookup_table(&mdfld_dsi_pipe_gpio_table);
-
- return mid_chip_setup(dev);
-}
-
-const struct psb_ops mdfld_chip_ops = {
- .name = "mdfld",
- .pipes = 3,
- .crtcs = 3,
- .lvds_mask = (1 << 1),
- .hdmi_mask = (1 << 1),
- .cursor_needs_phys = 0,
- .sgx_offset = MRST_SGX_OFFSET,
-
- .chip_setup = mdfld_chip_setup,
- .crtc_helper = &mdfld_helper_funcs,
- .crtc_funcs = &psb_intel_crtc_funcs,
-
- .output_init = mdfld_output_init,
-
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
- .backlight_init = mdfld_backlight_init,
-#endif
-
- .save_regs = mdfld_save_registers,
- .restore_regs = mdfld_restore_registers,
- .save_crtc = gma_crtc_save,
- .restore_crtc = gma_crtc_restore,
- .power_down = mdfld_power_down,
- .power_up = mdfld_power_up,
-};
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-02 16:36:49 +0300