u32 reg0;
i915_reg_t gpio_reg;
struct i2c_algo_bit_data bit_algo;
- struct drm_i915_private *dev_priv;
+ struct drm_i915_private *i915;
};
struct gmbus_pin {
intel_de_write(i915, GMBUS4(i915), 0);
}
-static void pnv_gmbus_clock_gating(struct drm_i915_private *dev_priv,
+static void pnv_gmbus_clock_gating(struct drm_i915_private *i915,
bool enable)
{
u32 val;
/* When using bit bashing for I2C, this bit needs to be set to 1 */
- val = intel_de_read(dev_priv, DSPCLK_GATE_D(dev_priv));
+ val = intel_de_read(i915, DSPCLK_GATE_D(i915));
if (!enable)
val |= PNV_GMBUSUNIT_CLOCK_GATE_DISABLE;
else
val &= ~PNV_GMBUSUNIT_CLOCK_GATE_DISABLE;
- intel_de_write(dev_priv, DSPCLK_GATE_D(dev_priv), val);
+ intel_de_write(i915, DSPCLK_GATE_D(i915), val);
}
-static void pch_gmbus_clock_gating(struct drm_i915_private *dev_priv,
+static void pch_gmbus_clock_gating(struct drm_i915_private *i915,
bool enable)
{
u32 val;
- val = intel_de_read(dev_priv, SOUTH_DSPCLK_GATE_D);
+ val = intel_de_read(i915, SOUTH_DSPCLK_GATE_D);
if (!enable)
val |= PCH_GMBUSUNIT_CLOCK_GATE_DISABLE;
else
val &= ~PCH_GMBUSUNIT_CLOCK_GATE_DISABLE;
- intel_de_write(dev_priv, SOUTH_DSPCLK_GATE_D, val);
+ intel_de_write(i915, SOUTH_DSPCLK_GATE_D, val);
}
-static void bxt_gmbus_clock_gating(struct drm_i915_private *dev_priv,
+static void bxt_gmbus_clock_gating(struct drm_i915_private *i915,
bool enable)
{
u32 val;
- val = intel_de_read(dev_priv, GEN9_CLKGATE_DIS_4);
+ val = intel_de_read(i915, GEN9_CLKGATE_DIS_4);
if (!enable)
val |= BXT_GMBUS_GATING_DIS;
else
val &= ~BXT_GMBUS_GATING_DIS;
- intel_de_write(dev_priv, GEN9_CLKGATE_DIS_4, val);
+ intel_de_write(i915, GEN9_CLKGATE_DIS_4, val);
}
static u32 get_reserved(struct intel_gmbus *bus)
{
- struct drm_i915_private *i915 = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
struct intel_uncore *uncore = &i915->uncore;
u32 reserved = 0;
static int get_clock(void *data)
{
struct intel_gmbus *bus = data;
- struct intel_uncore *uncore = &bus->dev_priv->uncore;
+ struct intel_uncore *uncore = &bus->i915->uncore;
u32 reserved = get_reserved(bus);
intel_uncore_write_notrace(uncore,
static int get_data(void *data)
{
struct intel_gmbus *bus = data;
- struct intel_uncore *uncore = &bus->dev_priv->uncore;
+ struct intel_uncore *uncore = &bus->i915->uncore;
u32 reserved = get_reserved(bus);
intel_uncore_write_notrace(uncore,
static void set_clock(void *data, int state_high)
{
struct intel_gmbus *bus = data;
- struct intel_uncore *uncore = &bus->dev_priv->uncore;
+ struct intel_uncore *uncore = &bus->i915->uncore;
u32 reserved = get_reserved(bus);
u32 clock_bits;
static void set_data(void *data, int state_high)
{
struct intel_gmbus *bus = data;
- struct intel_uncore *uncore = &bus->dev_priv->uncore;
+ struct intel_uncore *uncore = &bus->i915->uncore;
u32 reserved = get_reserved(bus);
u32 data_bits;
intel_gpio_pre_xfer(struct i2c_adapter *adapter)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
- intel_gmbus_reset(dev_priv);
+ intel_gmbus_reset(i915);
- if (IS_PINEVIEW(dev_priv))
- pnv_gmbus_clock_gating(dev_priv, false);
+ if (IS_PINEVIEW(i915))
+ pnv_gmbus_clock_gating(i915, false);
set_data(bus, 1);
set_clock(bus, 1);
intel_gpio_post_xfer(struct i2c_adapter *adapter)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
set_data(bus, 1);
set_clock(bus, 1);
- if (IS_PINEVIEW(dev_priv))
- pnv_gmbus_clock_gating(dev_priv, true);
+ if (IS_PINEVIEW(i915))
+ pnv_gmbus_clock_gating(i915, true);
}
static void
return HAS_GMBUS_IRQ(i915) && intel_irqs_enabled(i915);
}
-static int gmbus_wait(struct drm_i915_private *dev_priv, u32 status, u32 irq_en)
+static int gmbus_wait(struct drm_i915_private *i915, u32 status, u32 irq_en)
{
DEFINE_WAIT(wait);
u32 gmbus2;
* we also need to check for NAKs besides the hw ready/idle signal, we
* need to wake up periodically and check that ourselves.
*/
- if (!has_gmbus_irq(dev_priv))
+ if (!has_gmbus_irq(i915))
irq_en = 0;
- add_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
- intel_de_write_fw(dev_priv, GMBUS4(dev_priv), irq_en);
+ add_wait_queue(&i915->display.gmbus.wait_queue, &wait);
+ intel_de_write_fw(i915, GMBUS4(i915), irq_en);
status |= GMBUS_SATOER;
- ret = wait_for_us((gmbus2 = intel_de_read_fw(dev_priv, GMBUS2(dev_priv))) & status,
+ ret = wait_for_us((gmbus2 = intel_de_read_fw(i915, GMBUS2(i915))) & status,
2);
if (ret)
- ret = wait_for((gmbus2 = intel_de_read_fw(dev_priv, GMBUS2(dev_priv))) & status,
+ ret = wait_for((gmbus2 = intel_de_read_fw(i915, GMBUS2(i915))) & status,
50);
- intel_de_write_fw(dev_priv, GMBUS4(dev_priv), 0);
- remove_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
+ intel_de_write_fw(i915, GMBUS4(i915), 0);
+ remove_wait_queue(&i915->display.gmbus.wait_queue, &wait);
if (gmbus2 & GMBUS_SATOER)
return -ENXIO;
}
static int
-gmbus_wait_idle(struct drm_i915_private *dev_priv)
+gmbus_wait_idle(struct drm_i915_private *i915)
{
DEFINE_WAIT(wait);
u32 irq_enable;
/* Important: The hw handles only the first bit, so set only one! */
irq_enable = 0;
- if (has_gmbus_irq(dev_priv))
+ if (has_gmbus_irq(i915))
irq_enable = GMBUS_IDLE_EN;
- add_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
- intel_de_write_fw(dev_priv, GMBUS4(dev_priv), irq_enable);
+ add_wait_queue(&i915->display.gmbus.wait_queue, &wait);
+ intel_de_write_fw(i915, GMBUS4(i915), irq_enable);
- ret = intel_wait_for_register_fw(&dev_priv->uncore,
- GMBUS2(dev_priv), GMBUS_ACTIVE, 0,
+ ret = intel_wait_for_register_fw(&i915->uncore,
+ GMBUS2(i915), GMBUS_ACTIVE, 0,
10);
- intel_de_write_fw(dev_priv, GMBUS4(dev_priv), 0);
- remove_wait_queue(&dev_priv->display.gmbus.wait_queue, &wait);
+ intel_de_write_fw(i915, GMBUS4(i915), 0);
+ remove_wait_queue(&i915->display.gmbus.wait_queue, &wait);
return ret;
}
-static unsigned int gmbus_max_xfer_size(struct drm_i915_private *dev_priv)
+static unsigned int gmbus_max_xfer_size(struct drm_i915_private *i915)
{
- return DISPLAY_VER(dev_priv) >= 9 ? GEN9_GMBUS_BYTE_COUNT_MAX :
+ return DISPLAY_VER(i915) >= 9 ? GEN9_GMBUS_BYTE_COUNT_MAX :
GMBUS_BYTE_COUNT_MAX;
}
static int
-gmbus_xfer_read_chunk(struct drm_i915_private *dev_priv,
+gmbus_xfer_read_chunk(struct drm_i915_private *i915,
unsigned short addr, u8 *buf, unsigned int len,
u32 gmbus0_reg, u32 gmbus1_index)
{
unsigned int size = len;
- bool burst_read = len > gmbus_max_xfer_size(dev_priv);
+ bool burst_read = len > gmbus_max_xfer_size(i915);
bool extra_byte_added = false;
if (burst_read) {
len++;
}
size = len % 256 + 256;
- intel_de_write_fw(dev_priv, GMBUS0(dev_priv),
+ intel_de_write_fw(i915, GMBUS0(i915),
gmbus0_reg | GMBUS_BYTE_CNT_OVERRIDE);
}
- intel_de_write_fw(dev_priv, GMBUS1(dev_priv),
+ intel_de_write_fw(i915, GMBUS1(i915),
gmbus1_index | GMBUS_CYCLE_WAIT | (size << GMBUS_BYTE_COUNT_SHIFT) | (addr << GMBUS_SLAVE_ADDR_SHIFT) | GMBUS_SLAVE_READ | GMBUS_SW_RDY);
while (len) {
int ret;
u32 val, loop = 0;
- ret = gmbus_wait(dev_priv, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
+ ret = gmbus_wait(i915, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
if (ret)
return ret;
- val = intel_de_read_fw(dev_priv, GMBUS3(dev_priv));
+ val = intel_de_read_fw(i915, GMBUS3(i915));
do {
if (extra_byte_added && len == 1)
break;
if (burst_read && len == size - 4)
/* Reset the override bit */
- intel_de_write_fw(dev_priv, GMBUS0(dev_priv), gmbus0_reg);
+ intel_de_write_fw(i915, GMBUS0(i915), gmbus0_reg);
}
return 0;
#define INTEL_GMBUS_BURST_READ_MAX_LEN 767U
static int
-gmbus_xfer_read(struct drm_i915_private *dev_priv, struct i2c_msg *msg,
+gmbus_xfer_read(struct drm_i915_private *i915, struct i2c_msg *msg,
u32 gmbus0_reg, u32 gmbus1_index)
{
u8 *buf = msg->buf;
int ret;
do {
- if (HAS_GMBUS_BURST_READ(dev_priv))
+ if (HAS_GMBUS_BURST_READ(i915))
len = min(rx_size, INTEL_GMBUS_BURST_READ_MAX_LEN);
else
- len = min(rx_size, gmbus_max_xfer_size(dev_priv));
+ len = min(rx_size, gmbus_max_xfer_size(i915));
- ret = gmbus_xfer_read_chunk(dev_priv, msg->addr, buf, len,
+ ret = gmbus_xfer_read_chunk(i915, msg->addr, buf, len,
gmbus0_reg, gmbus1_index);
if (ret)
return ret;
}
static int
-gmbus_xfer_write_chunk(struct drm_i915_private *dev_priv,
+gmbus_xfer_write_chunk(struct drm_i915_private *i915,
unsigned short addr, u8 *buf, unsigned int len,
u32 gmbus1_index)
{
len -= 1;
}
- intel_de_write_fw(dev_priv, GMBUS3(dev_priv), val);
- intel_de_write_fw(dev_priv, GMBUS1(dev_priv),
+ intel_de_write_fw(i915, GMBUS3(i915), val);
+ intel_de_write_fw(i915, GMBUS1(i915),
gmbus1_index | GMBUS_CYCLE_WAIT | (chunk_size << GMBUS_BYTE_COUNT_SHIFT) | (addr << GMBUS_SLAVE_ADDR_SHIFT) | GMBUS_SLAVE_WRITE | GMBUS_SW_RDY);
while (len) {
int ret;
val |= *buf++ << (8 * loop);
} while (--len && ++loop < 4);
- intel_de_write_fw(dev_priv, GMBUS3(dev_priv), val);
+ intel_de_write_fw(i915, GMBUS3(i915), val);
- ret = gmbus_wait(dev_priv, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
+ ret = gmbus_wait(i915, GMBUS_HW_RDY, GMBUS_HW_RDY_EN);
if (ret)
return ret;
}
}
static int
-gmbus_xfer_write(struct drm_i915_private *dev_priv, struct i2c_msg *msg,
+gmbus_xfer_write(struct drm_i915_private *i915, struct i2c_msg *msg,
u32 gmbus1_index)
{
u8 *buf = msg->buf;
int ret;
do {
- len = min(tx_size, gmbus_max_xfer_size(dev_priv));
+ len = min(tx_size, gmbus_max_xfer_size(i915));
- ret = gmbus_xfer_write_chunk(dev_priv, msg->addr, buf, len,
+ ret = gmbus_xfer_write_chunk(i915, msg->addr, buf, len,
gmbus1_index);
if (ret)
return ret;
}
static int
-gmbus_index_xfer(struct drm_i915_private *dev_priv, struct i2c_msg *msgs,
+gmbus_index_xfer(struct drm_i915_private *i915, struct i2c_msg *msgs,
u32 gmbus0_reg)
{
u32 gmbus1_index = 0;
/* GMBUS5 holds 16-bit index */
if (gmbus5)
- intel_de_write_fw(dev_priv, GMBUS5(dev_priv), gmbus5);
+ intel_de_write_fw(i915, GMBUS5(i915), gmbus5);
if (msgs[1].flags & I2C_M_RD)
- ret = gmbus_xfer_read(dev_priv, &msgs[1], gmbus0_reg,
+ ret = gmbus_xfer_read(i915, &msgs[1], gmbus0_reg,
gmbus1_index);
else
- ret = gmbus_xfer_write(dev_priv, &msgs[1], gmbus1_index);
+ ret = gmbus_xfer_write(i915, &msgs[1], gmbus1_index);
/* Clear GMBUS5 after each index transfer */
if (gmbus5)
- intel_de_write_fw(dev_priv, GMBUS5(dev_priv), 0);
+ intel_de_write_fw(i915, GMBUS5(i915), 0);
return ret;
}
u32 gmbus0_source)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
int i = 0, inc, try = 0;
int ret = 0;
/* Display WA #0868: skl,bxt,kbl,cfl,glk */
- if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
- bxt_gmbus_clock_gating(dev_priv, false);
- else if (HAS_PCH_SPT(dev_priv) || HAS_PCH_CNP(dev_priv))
- pch_gmbus_clock_gating(dev_priv, false);
+ if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
+ bxt_gmbus_clock_gating(i915, false);
+ else if (HAS_PCH_SPT(i915) || HAS_PCH_CNP(i915))
+ pch_gmbus_clock_gating(i915, false);
retry:
- intel_de_write_fw(dev_priv, GMBUS0(dev_priv), gmbus0_source | bus->reg0);
+ intel_de_write_fw(i915, GMBUS0(i915), gmbus0_source | bus->reg0);
for (; i < num; i += inc) {
inc = 1;
if (gmbus_is_index_xfer(msgs, i, num)) {
- ret = gmbus_index_xfer(dev_priv, &msgs[i],
+ ret = gmbus_index_xfer(i915, &msgs[i],
gmbus0_source | bus->reg0);
inc = 2; /* an index transmission is two msgs */
} else if (msgs[i].flags & I2C_M_RD) {
- ret = gmbus_xfer_read(dev_priv, &msgs[i],
+ ret = gmbus_xfer_read(i915, &msgs[i],
gmbus0_source | bus->reg0, 0);
} else {
- ret = gmbus_xfer_write(dev_priv, &msgs[i], 0);
+ ret = gmbus_xfer_write(i915, &msgs[i], 0);
}
if (!ret)
- ret = gmbus_wait(dev_priv,
+ ret = gmbus_wait(i915,
GMBUS_HW_WAIT_PHASE, GMBUS_HW_WAIT_EN);
if (ret == -ETIMEDOUT)
goto timeout;
* a STOP on the very first cycle. To simplify the code we
* unconditionally generate the STOP condition with an additional gmbus
* cycle. */
- intel_de_write_fw(dev_priv, GMBUS1(dev_priv), GMBUS_CYCLE_STOP | GMBUS_SW_RDY);
+ intel_de_write_fw(i915, GMBUS1(i915), GMBUS_CYCLE_STOP | GMBUS_SW_RDY);
/* Mark the GMBUS interface as disabled after waiting for idle.
* We will re-enable it at the start of the next xfer,
* till then let it sleep.
*/
- if (gmbus_wait_idle(dev_priv)) {
- drm_dbg_kms(&dev_priv->drm,
+ if (gmbus_wait_idle(i915)) {
+ drm_dbg_kms(&i915->drm,
"GMBUS [%s] timed out waiting for idle\n",
adapter->name);
ret = -ETIMEDOUT;
}
- intel_de_write_fw(dev_priv, GMBUS0(dev_priv), 0);
+ intel_de_write_fw(i915, GMBUS0(i915), 0);
ret = ret ?: i;
goto out;
* it's slow responding and only answers on the 2nd retry.
*/
ret = -ENXIO;
- if (gmbus_wait_idle(dev_priv)) {
- drm_dbg_kms(&dev_priv->drm,
+ if (gmbus_wait_idle(i915)) {
+ drm_dbg_kms(&i915->drm,
"GMBUS [%s] timed out after NAK\n",
adapter->name);
ret = -ETIMEDOUT;
* of resetting the GMBUS controller and so clearing the
* BUS_ERROR raised by the slave's NAK.
*/
- intel_de_write_fw(dev_priv, GMBUS1(dev_priv), GMBUS_SW_CLR_INT);
- intel_de_write_fw(dev_priv, GMBUS1(dev_priv), 0);
- intel_de_write_fw(dev_priv, GMBUS0(dev_priv), 0);
+ intel_de_write_fw(i915, GMBUS1(i915), GMBUS_SW_CLR_INT);
+ intel_de_write_fw(i915, GMBUS1(i915), 0);
+ intel_de_write_fw(i915, GMBUS0(i915), 0);
- drm_dbg_kms(&dev_priv->drm, "GMBUS [%s] NAK for addr: %04x %c(%d)\n",
+ drm_dbg_kms(&i915->drm, "GMBUS [%s] NAK for addr: %04x %c(%d)\n",
adapter->name, msgs[i].addr,
(msgs[i].flags & I2C_M_RD) ? 'r' : 'w', msgs[i].len);
* drm_do_probe_ddc_edid, which bails out on the first -ENXIO.
*/
if (ret == -ENXIO && i == 0 && try++ == 0) {
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(&i915->drm,
"GMBUS [%s] NAK on first message, retry\n",
adapter->name);
goto retry;
goto out;
timeout:
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(&i915->drm,
"GMBUS [%s] timed out, falling back to bit banging on pin %d\n",
bus->adapter.name, bus->reg0 & 0xff);
- intel_de_write_fw(dev_priv, GMBUS0(dev_priv), 0);
+ intel_de_write_fw(i915, GMBUS0(i915), 0);
/*
* Hardware may not support GMBUS over these pins? Try GPIO bitbanging
out:
/* Display WA #0868: skl,bxt,kbl,cfl,glk */
- if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
- bxt_gmbus_clock_gating(dev_priv, true);
- else if (HAS_PCH_SPT(dev_priv) || HAS_PCH_CNP(dev_priv))
- pch_gmbus_clock_gating(dev_priv, true);
+ if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
+ bxt_gmbus_clock_gating(i915, true);
+ else if (HAS_PCH_SPT(i915) || HAS_PCH_CNP(i915))
+ pch_gmbus_clock_gating(i915, true);
return ret;
}
gmbus_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, int num)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
intel_wakeref_t wakeref;
int ret;
- wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
+ wakeref = intel_display_power_get(i915, POWER_DOMAIN_GMBUS);
if (bus->force_bit) {
ret = i2c_bit_algo.master_xfer(adapter, msgs, num);
bus->force_bit |= GMBUS_FORCE_BIT_RETRY;
}
- intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS, wakeref);
+ intel_display_power_put(i915, POWER_DOMAIN_GMBUS, wakeref);
return ret;
}
int intel_gmbus_output_aksv(struct i2c_adapter *adapter)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
u8 cmd = DRM_HDCP_DDC_AKSV;
u8 buf[DRM_HDCP_KSV_LEN] = { 0 };
struct i2c_msg msgs[] = {
intel_wakeref_t wakeref;
int ret;
- wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
- mutex_lock(&dev_priv->display.gmbus.mutex);
+ wakeref = intel_display_power_get(i915, POWER_DOMAIN_GMBUS);
+ mutex_lock(&i915->display.gmbus.mutex);
/*
* In order to output Aksv to the receiver, use an indexed write to
*/
ret = do_gmbus_xfer(adapter, msgs, ARRAY_SIZE(msgs), GMBUS_AKSV_SELECT);
- mutex_unlock(&dev_priv->display.gmbus.mutex);
- intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS, wakeref);
+ mutex_unlock(&i915->display.gmbus.mutex);
+ intel_display_power_put(i915, POWER_DOMAIN_GMBUS, wakeref);
return ret;
}
unsigned int flags)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
- mutex_lock(&dev_priv->display.gmbus.mutex);
+ mutex_lock(&i915->display.gmbus.mutex);
}
static int gmbus_trylock_bus(struct i2c_adapter *adapter,
unsigned int flags)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
- return mutex_trylock(&dev_priv->display.gmbus.mutex);
+ return mutex_trylock(&i915->display.gmbus.mutex);
}
static void gmbus_unlock_bus(struct i2c_adapter *adapter,
unsigned int flags)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
- mutex_unlock(&dev_priv->display.gmbus.mutex);
+ mutex_unlock(&i915->display.gmbus.mutex);
}
static const struct i2c_lock_operations gmbus_lock_ops = {
/**
* intel_gmbus_setup - instantiate all Intel i2c GMBuses
- * @dev_priv: i915 device private
+ * @i915: i915 device private
*/
-int intel_gmbus_setup(struct drm_i915_private *dev_priv)
+int intel_gmbus_setup(struct drm_i915_private *i915)
{
- struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
+ struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
unsigned int pin;
int ret;
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- dev_priv->display.gmbus.mmio_base = VLV_DISPLAY_BASE;
- else if (!HAS_GMCH(dev_priv))
+ if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+ i915->display.gmbus.mmio_base = VLV_DISPLAY_BASE;
+ else if (!HAS_GMCH(i915))
/*
* Broxton uses the same PCH offsets for South Display Engine,
* even though it doesn't have a PCH.
*/
- dev_priv->display.gmbus.mmio_base = PCH_DISPLAY_BASE;
+ i915->display.gmbus.mmio_base = PCH_DISPLAY_BASE;
- mutex_init(&dev_priv->display.gmbus.mutex);
- init_waitqueue_head(&dev_priv->display.gmbus.wait_queue);
+ mutex_init(&i915->display.gmbus.mutex);
+ init_waitqueue_head(&i915->display.gmbus.wait_queue);
- for (pin = 0; pin < ARRAY_SIZE(dev_priv->display.gmbus.bus); pin++) {
+ for (pin = 0; pin < ARRAY_SIZE(i915->display.gmbus.bus); pin++) {
const struct gmbus_pin *gmbus_pin;
struct intel_gmbus *bus;
- gmbus_pin = get_gmbus_pin(dev_priv, pin);
+ gmbus_pin = get_gmbus_pin(i915, pin);
if (!gmbus_pin)
continue;
"i915 gmbus %s", gmbus_pin->name);
bus->adapter.dev.parent = &pdev->dev;
- bus->dev_priv = dev_priv;
+ bus->i915 = i915;
bus->adapter.algo = &gmbus_algorithm;
bus->adapter.lock_ops = &gmbus_lock_ops;
bus->reg0 = pin | GMBUS_RATE_100KHZ;
/* gmbus seems to be broken on i830 */
- if (IS_I830(dev_priv))
+ if (IS_I830(i915))
bus->force_bit = 1;
- intel_gpio_setup(bus, GPIO(dev_priv, gmbus_pin->gpio));
+ intel_gpio_setup(bus, GPIO(i915, gmbus_pin->gpio));
ret = i2c_add_adapter(&bus->adapter);
if (ret) {
goto err;
}
- dev_priv->display.gmbus.bus[pin] = bus;
+ i915->display.gmbus.bus[pin] = bus;
}
- intel_gmbus_reset(dev_priv);
+ intel_gmbus_reset(i915);
return 0;
err:
- intel_gmbus_teardown(dev_priv);
+ intel_gmbus_teardown(i915);
return ret;
}
-struct i2c_adapter *intel_gmbus_get_adapter(struct drm_i915_private *dev_priv,
+struct i2c_adapter *intel_gmbus_get_adapter(struct drm_i915_private *i915,
unsigned int pin)
{
- if (drm_WARN_ON(&dev_priv->drm, pin >= ARRAY_SIZE(dev_priv->display.gmbus.bus) ||
- !dev_priv->display.gmbus.bus[pin]))
+ if (drm_WARN_ON(&i915->drm, pin >= ARRAY_SIZE(i915->display.gmbus.bus) ||
+ !i915->display.gmbus.bus[pin]))
return NULL;
- return &dev_priv->display.gmbus.bus[pin]->adapter;
+ return &i915->display.gmbus.bus[pin]->adapter;
}
void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit)
{
struct intel_gmbus *bus = to_intel_gmbus(adapter);
- struct drm_i915_private *dev_priv = bus->dev_priv;
+ struct drm_i915_private *i915 = bus->i915;
- mutex_lock(&dev_priv->display.gmbus.mutex);
+ mutex_lock(&i915->display.gmbus.mutex);
bus->force_bit += force_bit ? 1 : -1;
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(&i915->drm,
"%sabling bit-banging on %s. force bit now %d\n",
force_bit ? "en" : "dis", adapter->name,
bus->force_bit);
- mutex_unlock(&dev_priv->display.gmbus.mutex);
+ mutex_unlock(&i915->display.gmbus.mutex);
}
bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
return bus->force_bit;
}
-void intel_gmbus_teardown(struct drm_i915_private *dev_priv)
+void intel_gmbus_teardown(struct drm_i915_private *i915)
{
unsigned int pin;
- for (pin = 0; pin < ARRAY_SIZE(dev_priv->display.gmbus.bus); pin++) {
+ for (pin = 0; pin < ARRAY_SIZE(i915->display.gmbus.bus); pin++) {
struct intel_gmbus *bus;
- bus = dev_priv->display.gmbus.bus[pin];
+ bus = i915->display.gmbus.bus[pin];
if (!bus)
continue;
i2c_del_adapter(&bus->adapter);
kfree(bus);
- dev_priv->display.gmbus.bus[pin] = NULL;
+ i915->display.gmbus.bus[pin] = NULL;
}
}
projects / platform / kernel / linux-rpi.git / commitdiff