Commit cf0613d2 authored by Dave Airlie's avatar Dave Airlie
Browse files

Merge branch 'gma500-next' of git://github.com/patjak/drm-gma500 into drm-next 

SDVO support for minnowboard

* 'gma500-next' of git://github.com/patjak/drm-gma500:
  drm/gma500/mrst: Add SDVO to output init
  drm/gma500/mrst: Don't blindly guess a mode for LVDS
  drm/gma500/mrst: Setup GMBUS for oaktrail/mrst
  drm/gma500/mrst: Replace WMs and chickenbits with values from EMGD
  drm/gma500/mrst: Add aux register writes to SDVO
  drm/gma500/mrst: Properly route oaktrail hdmi hooks
  drm/gma500/mrst: Add aux register writes when programming pipe
  drm/gma500/mrst: Add SDVO clock calculation
  drm/gma500: Add aux device support for gmbus
  drm/gma500: Add support for aux pci vdc device
  drm/gma500: Add chip specific sdvo masks
  drm/gma500: Add Minnowboard to the IS_MRST() macro
parents 8d01e1ef cd3fdbe8

drivers/gpu/drm/gma500/cdv_device.c

+1 −0
Original line number Diff line number Diff line
@@ -634,6 +634,7 @@ const struct psb_ops cdv_chip_ops = { 
	.crtcs = 2,

	.hdmi_mask = (1 << 0) | (1 << 1),

	.lvds_mask = (1 << 1),

	.sdvo_mask = (1 << 0),

	.cursor_needs_phys = 0,

	.sgx_offset = MRST_SGX_OFFSET,

	.chip_setup = cdv_chip_setup,

drivers/gpu/drm/gma500/framebuffer.c

+1 −1
Original line number Diff line number Diff line
@@ -714,7 +714,7 @@ static void psb_setup_outputs(struct drm_device *dev) 
			clone_mask = (1 << INTEL_OUTPUT_ANALOG);

			break;

		case INTEL_OUTPUT_SDVO:

			crtc_mask = ((1 << 0) | (1 << 1));

			crtc_mask = dev_priv->ops->sdvo_mask;

			clone_mask = (1 << INTEL_OUTPUT_SDVO);

			break;

		case INTEL_OUTPUT_LVDS:

drivers/gpu/drm/gma500/intel_gmbus.c

+49 −41
Original line number Diff line number Diff line
@@ -51,6 +51,9 @@ 
#define wait_for(COND, MS) _wait_for(COND, MS, 1)

#define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)



#define GMBUS_REG_READ(reg) ioread32(dev_priv->gmbus_reg + (reg))

#define GMBUS_REG_WRITE(reg, val) iowrite32((val), dev_priv->gmbus_reg + (reg))



/* Intel GPIO access functions */



#define I2C_RISEFALL_TIME 20
@@ -71,7 +74,8 @@ struct intel_gpio { 
void

gma_intel_i2c_reset(struct drm_device *dev)

{

	REG_WRITE(GMBUS0, 0);

	struct drm_psb_private *dev_priv = dev->dev_private;

	GMBUS_REG_WRITE(GMBUS0, 0);

}



static void intel_i2c_quirk_set(struct drm_psb_private *dev_priv, bool enable)
@@ -98,11 +102,10 @@ static void intel_i2c_quirk_set(struct drm_psb_private *dev_priv, bool enable) 
static u32 get_reserved(struct intel_gpio *gpio)

{

	struct drm_psb_private *dev_priv = gpio->dev_priv;

	struct drm_device *dev = dev_priv->dev;

	u32 reserved = 0;



	/* On most chips, these bits must be preserved in software. */

	reserved = REG_READ(gpio->reg) &

	reserved = GMBUS_REG_READ(gpio->reg) &

				     (GPIO_DATA_PULLUP_DISABLE |

				      GPIO_CLOCK_PULLUP_DISABLE);
@@ -113,29 +116,26 @@ static int get_clock(void *data) 
{

	struct intel_gpio *gpio = data;

	struct drm_psb_private *dev_priv = gpio->dev_priv;

	struct drm_device *dev = dev_priv->dev;

	u32 reserved = get_reserved(gpio);

	REG_WRITE(gpio->reg, reserved | GPIO_CLOCK_DIR_MASK);

	REG_WRITE(gpio->reg, reserved);

	return (REG_READ(gpio->reg) & GPIO_CLOCK_VAL_IN) != 0;

	GMBUS_REG_WRITE(gpio->reg, reserved | GPIO_CLOCK_DIR_MASK);

	GMBUS_REG_WRITE(gpio->reg, reserved);

	return (GMBUS_REG_READ(gpio->reg) & GPIO_CLOCK_VAL_IN) != 0;

}



static int get_data(void *data)

{

	struct intel_gpio *gpio = data;

	struct drm_psb_private *dev_priv = gpio->dev_priv;

	struct drm_device *dev = dev_priv->dev;

	u32 reserved = get_reserved(gpio);

	REG_WRITE(gpio->reg, reserved | GPIO_DATA_DIR_MASK);

	REG_WRITE(gpio->reg, reserved);

	return (REG_READ(gpio->reg) & GPIO_DATA_VAL_IN) != 0;

	GMBUS_REG_WRITE(gpio->reg, reserved | GPIO_DATA_DIR_MASK);

	GMBUS_REG_WRITE(gpio->reg, reserved);

	return (GMBUS_REG_READ(gpio->reg) & GPIO_DATA_VAL_IN) != 0;

}



static void set_clock(void *data, int state_high)

{

	struct intel_gpio *gpio = data;

	struct drm_psb_private *dev_priv = gpio->dev_priv;

	struct drm_device *dev = dev_priv->dev;

	u32 reserved = get_reserved(gpio);

	u32 clock_bits;
@@ -145,15 +145,14 @@ static void set_clock(void *data, int state_high) 
		clock_bits = GPIO_CLOCK_DIR_OUT | GPIO_CLOCK_DIR_MASK |

			GPIO_CLOCK_VAL_MASK;



	REG_WRITE(gpio->reg, reserved | clock_bits);

	REG_READ(gpio->reg); /* Posting */

	GMBUS_REG_WRITE(gpio->reg, reserved | clock_bits);

	GMBUS_REG_READ(gpio->reg); /* Posting */

}



static void set_data(void *data, int state_high)

{

	struct intel_gpio *gpio = data;

	struct drm_psb_private *dev_priv = gpio->dev_priv;

	struct drm_device *dev = dev_priv->dev;

	u32 reserved = get_reserved(gpio);

	u32 data_bits;
@@ -163,8 +162,8 @@ static void set_data(void *data, int state_high) 
		data_bits = GPIO_DATA_DIR_OUT | GPIO_DATA_DIR_MASK |

			GPIO_DATA_VAL_MASK;



	REG_WRITE(gpio->reg, reserved | data_bits);

	REG_READ(gpio->reg);

	GMBUS_REG_WRITE(gpio->reg, reserved | data_bits);

	GMBUS_REG_READ(gpio->reg);

}



static struct i2c_adapter *
@@ -251,7 +250,6 @@ gmbus_xfer(struct i2c_adapter *adapter, 
					       struct intel_gmbus,

					       adapter);

	struct drm_psb_private *dev_priv = adapter->algo_data;

	struct drm_device *dev = dev_priv->dev;

	int i, reg_offset;



	if (bus->force_bit)
@@ -260,28 +258,30 @@ gmbus_xfer(struct i2c_adapter *adapter, 


	reg_offset = 0;



	REG_WRITE(GMBUS0 + reg_offset, bus->reg0);

	GMBUS_REG_WRITE(GMBUS0 + reg_offset, bus->reg0);



	for (i = 0; i < num; i++) {

		u16 len = msgs[i].len;

		u8 *buf = msgs[i].buf;



		if (msgs[i].flags & I2C_M_RD) {

			REG_WRITE(GMBUS1 + reg_offset,

				   GMBUS_CYCLE_WAIT | (i + 1 == num ? GMBUS_CYCLE_STOP : 0) |

			GMBUS_REG_WRITE(GMBUS1 + reg_offset,

					GMBUS_CYCLE_WAIT |

					(i + 1 == num ? GMBUS_CYCLE_STOP : 0) |

					(len << GMBUS_BYTE_COUNT_SHIFT) |

					(msgs[i].addr << GMBUS_SLAVE_ADDR_SHIFT) |

					GMBUS_SLAVE_READ | GMBUS_SW_RDY);

			REG_READ(GMBUS2+reg_offset);

			GMBUS_REG_READ(GMBUS2+reg_offset);

			do {

				u32 val, loop = 0;



				if (wait_for(REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_RDY), 50))

				if (wait_for(GMBUS_REG_READ(GMBUS2 + reg_offset) &

					     (GMBUS_SATOER | GMBUS_HW_RDY), 50))

					goto timeout;

				if (REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)

				if (GMBUS_REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)

					goto clear_err;



				val = REG_READ(GMBUS3 + reg_offset);

				val = GMBUS_REG_READ(GMBUS3 + reg_offset);

				do {

					*buf++ = val & 0xff;

					val >>= 8;
@@ -295,18 +295,20 @@ gmbus_xfer(struct i2c_adapter *adapter, 
				val |= *buf++ << (8 * loop);

			} while (--len && ++loop < 4);



			REG_WRITE(GMBUS3 + reg_offset, val);

			REG_WRITE(GMBUS1 + reg_offset,

			GMBUS_REG_WRITE(GMBUS3 + reg_offset, val);

			GMBUS_REG_WRITE(GMBUS1 + reg_offset,

				   (i + 1 == num ? GMBUS_CYCLE_STOP : GMBUS_CYCLE_WAIT) |

				   (msgs[i].len << GMBUS_BYTE_COUNT_SHIFT) |

				   (msgs[i].addr << GMBUS_SLAVE_ADDR_SHIFT) |

				   GMBUS_SLAVE_WRITE | GMBUS_SW_RDY);

			REG_READ(GMBUS2+reg_offset);

			GMBUS_REG_READ(GMBUS2+reg_offset);



			while (len) {

				if (wait_for(REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_RDY), 50))

				if (wait_for(GMBUS_REG_READ(GMBUS2 + reg_offset) &

					     (GMBUS_SATOER | GMBUS_HW_RDY), 50))

					goto timeout;

				if (REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)

				if (GMBUS_REG_READ(GMBUS2 + reg_offset) &

				    GMBUS_SATOER)

					goto clear_err;



				val = loop = 0;
@@ -314,14 +316,14 @@ gmbus_xfer(struct i2c_adapter *adapter, 
					val |= *buf++ << (8 * loop);

				} while (--len && ++loop < 4);



				REG_WRITE(GMBUS3 + reg_offset, val);

				REG_READ(GMBUS2+reg_offset);

				GMBUS_REG_WRITE(GMBUS3 + reg_offset, val);

				GMBUS_REG_READ(GMBUS2+reg_offset);

			}

		}



		if (i + 1 < num && wait_for(REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_WAIT_PHASE), 50))

		if (i + 1 < num && wait_for(GMBUS_REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_WAIT_PHASE), 50))

			goto timeout;

		if (REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)

		if (GMBUS_REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)

			goto clear_err;

	}
@@ -332,20 +334,20 @@ clear_err: 
	 * of resetting the GMBUS controller and so clearing the

	 * BUS_ERROR raised by the slave's NAK.

	 */

	REG_WRITE(GMBUS1 + reg_offset, GMBUS_SW_CLR_INT);

	REG_WRITE(GMBUS1 + reg_offset, 0);

	GMBUS_REG_WRITE(GMBUS1 + reg_offset, GMBUS_SW_CLR_INT);

	GMBUS_REG_WRITE(GMBUS1 + reg_offset, 0);



done:

	/* Mark the GMBUS interface as disabled. We will re-enable it at the

	 * start of the next xfer, till then let it sleep.

	 */

	REG_WRITE(GMBUS0 + reg_offset, 0);

	GMBUS_REG_WRITE(GMBUS0 + reg_offset, 0);

	return i;



timeout:

	DRM_INFO("GMBUS timed out, falling back to bit banging on pin %d [%s]\n",

		 bus->reg0 & 0xff, bus->adapter.name);

	REG_WRITE(GMBUS0 + reg_offset, 0);

	GMBUS_REG_WRITE(GMBUS0 + reg_offset, 0);



	/* Hardware may not support GMBUS over these pins? Try GPIO bitbanging instead. */

	bus->force_bit = intel_gpio_create(dev_priv, bus->reg0 & 0xff);
@@ -399,6 +401,11 @@ int gma_intel_setup_gmbus(struct drm_device *dev) 
	if (dev_priv->gmbus == NULL)

		return -ENOMEM;



	if (IS_MRST(dev))

		dev_priv->gmbus_reg = dev_priv->aux_reg;

	else

		dev_priv->gmbus_reg = dev_priv->vdc_reg;



	for (i = 0; i < GMBUS_NUM_PORTS; i++) {

		struct intel_gmbus *bus = &dev_priv->gmbus[i];
@@ -487,6 +494,7 @@ void gma_intel_teardown_gmbus(struct drm_device *dev) 
		i2c_del_adapter(&bus->adapter);

	}



	dev_priv->gmbus_reg = NULL; /* iounmap is done in driver_unload */

	kfree(dev_priv->gmbus);

	dev_priv->gmbus = NULL;

}

drivers/gpu/drm/gma500/oaktrail_crtc.c

+269 −164
Original line number Diff line number Diff line
@@ -26,24 +26,10 @@ 
#include "gma_display.h"

#include "power.h"



struct psb_intel_range_t {

	int min, max;

};



struct oaktrail_limit_t {

	struct psb_intel_range_t dot, m, p1;

};



struct oaktrail_clock_t {

	/* derived values */

	int dot;

	int m;

	int p1;

};



#define MRST_LIMIT_LVDS_100L	0

#define MRST_LIMIT_LVDS_83	1

#define MRST_LIMIT_LVDS_100	2

#define MRST_LIMIT_SDVO		3



#define MRST_DOT_MIN		  19750

#define MRST_DOT_MAX		  120000
@@ -57,21 +43,40 @@ struct oaktrail_clock_t { 
#define MRST_P1_MAX_0		    7

#define MRST_P1_MAX_1		    8



static const struct oaktrail_limit_t oaktrail_limits[] = {

static bool mrst_lvds_find_best_pll(const struct gma_limit_t *limit,

				    struct drm_crtc *crtc, int target,

				    int refclk, struct gma_clock_t *best_clock);



static bool mrst_sdvo_find_best_pll(const struct gma_limit_t *limit,

				    struct drm_crtc *crtc, int target,

				    int refclk, struct gma_clock_t *best_clock);



static const struct gma_limit_t mrst_limits[] = {

	{			/* MRST_LIMIT_LVDS_100L */

	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},

	 .m = {.min = MRST_M_MIN_100L, .max = MRST_M_MAX_100L},

	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_1},

	 .find_pll = mrst_lvds_find_best_pll,

	 },

	{			/* MRST_LIMIT_LVDS_83L */

	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},

	 .m = {.min = MRST_M_MIN_83, .max = MRST_M_MAX_83},

	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_0},

	 .find_pll = mrst_lvds_find_best_pll,

	 },

	{			/* MRST_LIMIT_LVDS_100 */

	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},

	 .m = {.min = MRST_M_MIN_100, .max = MRST_M_MAX_100},

	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_1},

	 .find_pll = mrst_lvds_find_best_pll,

	 },

	{			/* MRST_LIMIT_SDVO */

	 .vco = {.min = 1400000, .max = 2800000},

	 .n = {.min = 3, .max = 7},

	 .m = {.min = 80, .max = 137},

	 .p1 = {.min = 1, .max = 2},

	 .p2 = {.dot_limit = 200000, .p2_slow = 10, .p2_fast = 10},

	 .find_pll = mrst_sdvo_find_best_pll,

	 },

};
@@ -82,9 +87,10 @@ static const u32 oaktrail_m_converts[] = { 
	0x12, 0x09, 0x24, 0x32, 0x39, 0x1c,

};



static const struct oaktrail_limit_t *oaktrail_limit(struct drm_crtc *crtc)

static const struct gma_limit_t *mrst_limit(struct drm_crtc *crtc,

					    int refclk)

{

	const struct oaktrail_limit_t *limit = NULL;

	const struct gma_limit_t *limit = NULL;

	struct drm_device *dev = crtc->dev;

	struct drm_psb_private *dev_priv = dev->dev_private;
@@ -92,45 +98,100 @@ static const struct oaktrail_limit_t *oaktrail_limit(struct drm_crtc *crtc) 
	    || gma_pipe_has_type(crtc, INTEL_OUTPUT_MIPI)) {

		switch (dev_priv->core_freq) {

		case 100:

			limit = &oaktrail_limits[MRST_LIMIT_LVDS_100L];

			limit = &mrst_limits[MRST_LIMIT_LVDS_100L];

			break;

		case 166:

			limit = &oaktrail_limits[MRST_LIMIT_LVDS_83];

			limit = &mrst_limits[MRST_LIMIT_LVDS_83];

			break;

		case 200:

			limit = &oaktrail_limits[MRST_LIMIT_LVDS_100];

			limit = &mrst_limits[MRST_LIMIT_LVDS_100];

			break;

		}

	} else if (gma_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {

		limit = &mrst_limits[MRST_LIMIT_SDVO];

	} else {

		limit = NULL;

		dev_err(dev->dev, "oaktrail_limit Wrong display type.\n");

		dev_err(dev->dev, "mrst_limit Wrong display type.\n");

	}



	return limit;

}



/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */

static void oaktrail_clock(int refclk, struct oaktrail_clock_t *clock)

static void mrst_lvds_clock(int refclk, struct gma_clock_t *clock)

{

	clock->dot = (refclk * clock->m) / (14 * clock->p1);

}



static void mrstPrintPll(char *prefix, struct oaktrail_clock_t *clock)

static void mrst_print_pll(struct gma_clock_t *clock)

{

	DRM_DEBUG_DRIVER("dotclock=%d,  m=%d, m1=%d, m2=%d, n=%d, p1=%d, p2=%d\n",

			 clock->dot, clock->m, clock->m1, clock->m2, clock->n,

			 clock->p1, clock->p2);

}



static bool mrst_sdvo_find_best_pll(const struct gma_limit_t *limit,

				    struct drm_crtc *crtc, int target,

				    int refclk, struct gma_clock_t *best_clock)

{

	pr_debug("%s: dotclock = %d,  m = %d, p1 = %d.\n",

	     prefix, clock->dot, clock->m, clock->p1);

	struct gma_clock_t clock;

	u32 target_vco, actual_freq;

	s32 freq_error, min_error = 100000;



	memset(best_clock, 0, sizeof(*best_clock));



	for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) {

		for (clock.n = limit->n.min; clock.n <= limit->n.max;

		     clock.n++) {

			for (clock.p1 = limit->p1.min;

			     clock.p1 <= limit->p1.max; clock.p1++) {

				/* p2 value always stored in p2_slow on SDVO */

				clock.p = clock.p1 * limit->p2.p2_slow;

				target_vco = target * clock.p;



				/* VCO will increase at this point so break */

				if (target_vco > limit->vco.max)

					break;



				if (target_vco < limit->vco.min)

					continue;



				actual_freq = (refclk * clock.m) /

					      (clock.n * clock.p);

				freq_error = 10000 -

					     ((target * 10000) / actual_freq);



				if (freq_error < -min_error) {

					/* freq_error will start to decrease at

					   this point so break */

					break;

				}



				if (freq_error < 0)

					freq_error = -freq_error;



				if (freq_error < min_error) {

					min_error = freq_error;

					*best_clock = clock;

				}

			}

		}

		if (min_error == 0)

			break;

	}



	return min_error == 0;

}



/**

 * 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

mrstFindBestPLL(struct drm_crtc *crtc, int target, int refclk,

		struct oaktrail_clock_t *best_clock)

static bool mrst_lvds_find_best_pll(const struct gma_limit_t *limit,

				    struct drm_crtc *crtc, int target,

				    int refclk, struct gma_clock_t *best_clock)

{

	struct oaktrail_clock_t clock;

	const struct oaktrail_limit_t *limit = oaktrail_limit(crtc);

	struct gma_clock_t clock;

	int err = target;



	memset(best_clock, 0, sizeof(*best_clock));
@@ -140,7 +201,7 @@ mrstFindBestPLL(struct drm_crtc *crtc, int target, int refclk, 
		     clock.p1++) {

			int this_err;



			oaktrail_clock(refclk, &clock);

			mrst_lvds_clock(refclk, &clock);



			this_err = abs(clock.dot - target);

			if (this_err < err) {
@@ -149,7 +210,6 @@ mrstFindBestPLL(struct drm_crtc *crtc, int target, int refclk, 
			}

		}

	}

	dev_dbg(crtc->dev->dev, "mrstFindBestPLL err = %d.\n", err);

	return err != target;

}
@@ -167,8 +227,10 @@ static void oaktrail_crtc_dpms(struct drm_crtc *crtc, int mode) 
	int pipe = gma_crtc->pipe;

	const struct psb_offset *map = &dev_priv->regmap[pipe];

	u32 temp;

	int i;

	int need_aux = gma_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) ? 1 : 0;



	if (pipe == 1) {

	if (gma_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) {

		oaktrail_crtc_hdmi_dpms(crtc, mode);

		return;

	}
@@ -183,35 +245,45 @@ static void oaktrail_crtc_dpms(struct drm_crtc *crtc, int mode) 
	case DRM_MODE_DPMS_ON:

	case DRM_MODE_DPMS_STANDBY:

	case DRM_MODE_DPMS_SUSPEND:

		for (i = 0; i <= need_aux; i++) {

			/* Enable the DPLL */

		temp = REG_READ(map->dpll);

			temp = REG_READ_WITH_AUX(map->dpll, i);

			if ((temp & DPLL_VCO_ENABLE) == 0) {

			REG_WRITE(map->dpll, temp);

			REG_READ(map->dpll);

				REG_WRITE_WITH_AUX(map->dpll, temp, i);

				REG_READ_WITH_AUX(map->dpll, i);

				/* Wait for the clocks to stabilize. */

				udelay(150);

			REG_WRITE(map->dpll, temp | DPLL_VCO_ENABLE);

			REG_READ(map->dpll);

				REG_WRITE_WITH_AUX(map->dpll,

						   temp | DPLL_VCO_ENABLE, i);

				REG_READ_WITH_AUX(map->dpll, i);

				/* Wait for the clocks to stabilize. */

				udelay(150);

			REG_WRITE(map->dpll, temp | DPLL_VCO_ENABLE);

			REG_READ(map->dpll);

				REG_WRITE_WITH_AUX(map->dpll,

						   temp | DPLL_VCO_ENABLE, i);

				REG_READ_WITH_AUX(map->dpll, i);

				/* Wait for the clocks to stabilize. */

				udelay(150);

			}



			/* Enable the pipe */

		temp = REG_READ(map->conf);

		if ((temp & PIPEACONF_ENABLE) == 0)

			REG_WRITE(map->conf, temp | PIPEACONF_ENABLE);

			temp = REG_READ_WITH_AUX(map->conf, i);

			if ((temp & PIPEACONF_ENABLE) == 0) {

				REG_WRITE_WITH_AUX(map->conf,

						   temp | PIPEACONF_ENABLE, i);

			}



			/* Enable the plane */

		temp = REG_READ(map->cntr);

			temp = REG_READ_WITH_AUX(map->cntr, i);

			if ((temp & DISPLAY_PLANE_ENABLE) == 0) {

			REG_WRITE(map->cntr,

				  temp | DISPLAY_PLANE_ENABLE);

				REG_WRITE_WITH_AUX(map->cntr,

						   temp | DISPLAY_PLANE_ENABLE,

						   i);

				/* Flush the plane changes */

			REG_WRITE(map->base, REG_READ(map->base));

				REG_WRITE_WITH_AUX(map->base,

					REG_READ_WITH_AUX(map->base, i), i);

			}



		}

		gma_crtc_load_lut(crtc);



		/* Give the overlay scaler a chance to enable
@@ -223,48 +295,52 @@ static void oaktrail_crtc_dpms(struct drm_crtc *crtc, int mode) 
		 * if it's on this pipe */

		/* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */



		for (i = 0; i <= need_aux; i++) {

			/* Disable the VGA plane that we never use */

		REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);

			REG_WRITE_WITH_AUX(VGACNTRL, VGA_DISP_DISABLE, i);

			/* Disable display plane */

		temp = REG_READ(map->cntr);

			temp = REG_READ_WITH_AUX(map->cntr, i);

			if ((temp & DISPLAY_PLANE_ENABLE) != 0) {

			REG_WRITE(map->cntr,

				  temp & ~DISPLAY_PLANE_ENABLE);

				REG_WRITE_WITH_AUX(map->cntr,

					temp & ~DISPLAY_PLANE_ENABLE, i);

				/* Flush the plane changes */

			REG_WRITE(map->base, REG_READ(map->base));

			REG_READ(map->base);

				REG_WRITE_WITH_AUX(map->base,

						   REG_READ(map->base), i);

				REG_READ_WITH_AUX(map->base, i);

			}



			/* Next, disable display pipes */

		temp = REG_READ(map->conf);

			temp = REG_READ_WITH_AUX(map->conf, i);

			if ((temp & PIPEACONF_ENABLE) != 0) {

			REG_WRITE(map->conf, temp & ~PIPEACONF_ENABLE);

			REG_READ(map->conf);

				REG_WRITE_WITH_AUX(map->conf,

						   temp & ~PIPEACONF_ENABLE, i);

				REG_READ_WITH_AUX(map->conf, i);

			}

			/* Wait for for the pipe disable to take effect. */

			gma_wait_for_vblank(dev);



		temp = REG_READ(map->dpll);

			temp = REG_READ_WITH_AUX(map->dpll, i);

			if ((temp & DPLL_VCO_ENABLE) != 0) {

			REG_WRITE(map->dpll, temp & ~DPLL_VCO_ENABLE);

			REG_READ(map->dpll);

				REG_WRITE_WITH_AUX(map->dpll,

						   temp & ~DPLL_VCO_ENABLE, i);

				REG_READ_WITH_AUX(map->dpll, i);

			}



			/* Wait for the clocks to turn off. */

			udelay(150);

		}

		break;

	}



	/*Set FIFO Watermarks*/

	REG_WRITE(DSPARB, 0x3FFF);

	REG_WRITE(DSPFW1, 0x3F88080A);

	REG_WRITE(DSPFW2, 0x0b060808);

	/* Set FIFO Watermarks (values taken from EMGD) */

	REG_WRITE(DSPARB, 0x3f80);

	REG_WRITE(DSPFW1, 0x3f8f0404);

	REG_WRITE(DSPFW2, 0x04040f04);

	REG_WRITE(DSPFW3, 0x0);

	REG_WRITE(DSPFW4, 0x08030404);

	REG_WRITE(DSPFW4, 0x04040404);

	REG_WRITE(DSPFW5, 0x04040404);

	REG_WRITE(DSPFW6, 0x78);

	REG_WRITE(0x70400, REG_READ(0x70400) | 0x4000);

	/* Must write Bit 14 of the Chicken Bit Register */

	REG_WRITE(DSPCHICKENBIT, REG_READ(DSPCHICKENBIT) | 0xc040);



	gma_power_end(dev);

}
@@ -297,7 +373,8 @@ static int oaktrail_crtc_mode_set(struct drm_crtc *crtc, 
	int pipe = gma_crtc->pipe;

	const struct psb_offset *map = &dev_priv->regmap[pipe];

	int refclk = 0;

	struct oaktrail_clock_t clock;

	struct gma_clock_t clock;

	const struct gma_limit_t *limit;

	u32 dpll = 0, fp = 0, dspcntr, pipeconf;

	bool ok, is_sdvo = false;

	bool is_lvds = false;
@@ -306,8 +383,10 @@ static int oaktrail_crtc_mode_set(struct drm_crtc *crtc, 
	struct gma_encoder *gma_encoder = NULL;

	uint64_t scalingType = DRM_MODE_SCALE_FULLSCREEN;

	struct drm_connector *connector;

	int i;

	int need_aux = gma_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) ? 1 : 0;



	if (pipe == 1)

	if (gma_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))

		return oaktrail_crtc_hdmi_mode_set(crtc, mode, adjusted_mode, x, y, old_fb);



	if (!gma_power_begin(dev, true))
@@ -340,15 +419,17 @@ static int oaktrail_crtc_mode_set(struct drm_crtc *crtc, 
	}



	/* Disable the VGA plane that we never use */

	REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);

	for (i = 0; i <= need_aux; i++)

		REG_WRITE_WITH_AUX(VGACNTRL, VGA_DISP_DISABLE, i);



	/* Disable the panel fitter if it was on our pipe */

	if (oaktrail_panel_fitter_pipe(dev) == pipe)

		REG_WRITE(PFIT_CONTROL, 0);



	REG_WRITE(map->src,

		  ((mode->crtc_hdisplay - 1) << 16) |

		  (mode->crtc_vdisplay - 1));

	for (i = 0; i <= need_aux; i++) {

		REG_WRITE_WITH_AUX(map->src, ((mode->crtc_hdisplay - 1) << 16) |

					     (mode->crtc_vdisplay - 1), i);

	}



	if (gma_encoder)

		drm_object_property_get_value(&connector->base,
@@ -365,35 +446,39 @@ static int oaktrail_crtc_mode_set(struct drm_crtc *crtc, 
		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,

		for (i = 0; i <= need_aux; i++) {

			REG_WRITE_WITH_AUX(map->htotal, (mode->crtc_hdisplay - 1) |

				((adjusted_mode->crtc_htotal - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->vtotal, (mode->crtc_vdisplay - 1) |

				((adjusted_mode->crtc_vtotal - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->hblank,

				(adjusted_mode->crtc_hblank_start - offsetX - 1) |

			((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16));

		REG_WRITE(map->hsync,

				((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->hsync,

				(adjusted_mode->crtc_hsync_start - offsetX - 1) |

			((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16));

		REG_WRITE(map->vblank,

				((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->vblank,

				(adjusted_mode->crtc_vblank_start - offsetY - 1) |

			((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16));

		REG_WRITE(map->vsync,

				((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->vsync,

				(adjusted_mode->crtc_vsync_start - offsetY - 1) |

			((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16));

				((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16), i);

		}

	} 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));

		for (i = 0; i <= need_aux; i++) {

			REG_WRITE_WITH_AUX(map->htotal, (adjusted_mode->crtc_hdisplay - 1) |

				((adjusted_mode->crtc_htotal - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->vtotal, (adjusted_mode->crtc_vdisplay - 1) |

				((adjusted_mode->crtc_vtotal - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->hblank, (adjusted_mode->crtc_hblank_start - 1) |

				((adjusted_mode->crtc_hblank_end - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->hsync, (adjusted_mode->crtc_hsync_start - 1) |

				((adjusted_mode->crtc_hsync_end - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->vblank, (adjusted_mode->crtc_vblank_start - 1) |

				((adjusted_mode->crtc_vblank_end - 1) << 16), i);

			REG_WRITE_WITH_AUX(map->vsync, (adjusted_mode->crtc_vsync_start - 1) |

				((adjusted_mode->crtc_vsync_end - 1) << 16), i);

		}

	}



	/* Flush the plane changes */
@@ -418,20 +503,29 @@ static int oaktrail_crtc_mode_set(struct drm_crtc *crtc, 
	if (is_mipi)

		goto oaktrail_crtc_mode_set_exit;



	refclk = dev_priv->core_freq * 1000;



	dpll = 0;		/*BIT16 = 0 for 100MHz reference */



	ok = mrstFindBestPLL(crtc, adjusted_mode->clock, refclk, &clock);

	refclk = is_sdvo ? 96000 : dev_priv->core_freq * 1000;

	limit = mrst_limit(crtc, refclk);

	ok = limit->find_pll(limit, crtc, adjusted_mode->clock,

			     refclk, &clock);



	if (!ok) {

		dev_dbg(dev->dev, "mrstFindBestPLL fail in oaktrail_crtc_mode_set.\n");

	} else {

		dev_dbg(dev->dev, "oaktrail_crtc_mode_set pixel clock = %d,"

			 "m = %x, p1 = %x.\n", clock.dot, clock.m,

			 clock.p1);

	if (is_sdvo) {

		/* Convert calculated values to register values */

		clock.p1 = (1L << (clock.p1 - 1));

		clock.m -= 2;

		clock.n = (1L << (clock.n - 1));

	}



	if (!ok)

		DRM_ERROR("Failed to find proper PLL settings");



	mrst_print_pll(&clock);



	if (is_sdvo)

		fp = clock.n << 16 | clock.m;

	else

		fp = oaktrail_m_converts[(clock.m - MRST_M_MIN)] << 8;



	dpll |= DPLL_VGA_MODE_DIS;
@@ -456,38 +550,43 @@ static int oaktrail_crtc_mode_set(struct drm_crtc *crtc, 




	/* compute bitmask from p1 value */

	if (is_sdvo)

		dpll |= clock.p1 << 16; // dpll |= (1 << (clock.p1 - 1)) << 16;

	else

		dpll |= (1 << (clock.p1 - 2)) << 17;



	dpll |= DPLL_VCO_ENABLE;



	mrstPrintPll("chosen", &clock);



	if (dpll & DPLL_VCO_ENABLE) {

		REG_WRITE(map->fp0, fp);

		REG_WRITE(map->dpll, dpll & ~DPLL_VCO_ENABLE);

		REG_READ(map->dpll);

		for (i = 0; i <= need_aux; i++) {

			REG_WRITE_WITH_AUX(map->fp0, fp, i);

			REG_WRITE_WITH_AUX(map->dpll, dpll & ~DPLL_VCO_ENABLE, i);

			REG_READ_WITH_AUX(map->dpll, i);

			/* Check the DPLLA lock bit PIPEACONF[29] */

			udelay(150);

		}

	}



	REG_WRITE(map->fp0, fp);

	REG_WRITE(map->dpll, dpll);

	REG_READ(map->dpll);

	for (i = 0; i <= need_aux; i++) {

		REG_WRITE_WITH_AUX(map->fp0, fp, i);

		REG_WRITE_WITH_AUX(map->dpll, dpll, i);

		REG_READ_WITH_AUX(map->dpll, i);

		/* Wait for the clocks to stabilize. */

		udelay(150);



		/* write it again -- the BIOS does, after all */

	REG_WRITE(map->dpll, dpll);

	REG_READ(map->dpll);

		REG_WRITE_WITH_AUX(map->dpll, dpll, i);

		REG_READ_WITH_AUX(map->dpll, i);

		/* Wait for the clocks to stabilize. */

		udelay(150);



	REG_WRITE(map->conf, pipeconf);

	REG_READ(map->conf);

		REG_WRITE_WITH_AUX(map->conf, pipeconf, i);

		REG_READ_WITH_AUX(map->conf, i);

		gma_wait_for_vblank(dev);



	REG_WRITE(map->cntr, dspcntr);

		REG_WRITE_WITH_AUX(map->cntr, dspcntr, i);

		gma_wait_for_vblank(dev);

	}



oaktrail_crtc_mode_set_exit:

	gma_power_end(dev);
@@ -565,3 +664,9 @@ const struct drm_crtc_helper_funcs oaktrail_helper_funcs = { 
	.commit = gma_crtc_commit,

};



/* Not used yet */

const struct gma_clock_funcs mrst_clock_funcs = {

	.clock = mrst_lvds_clock,

	.limit = mrst_limit,

	.pll_is_valid = gma_pll_is_valid,

};

drivers/gpu/drm/gma500/oaktrail_device.c

+6 −0

File changed.

Preview size limit exceeded, changes collapsed.

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