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path: root/drivers/gpu/drm/i915/intel_sdvo.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c72
1 files changed, 30 insertions, 42 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 9a00adb3a508..f03473779feb 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -38,8 +38,7 @@
38#undef SDVO_DEBUG 38#undef SDVO_DEBUG
39#define I915_SDVO "i915_sdvo" 39#define I915_SDVO "i915_sdvo"
40struct intel_sdvo_priv { 40struct intel_sdvo_priv {
41 struct intel_i2c_chan *i2c_bus; 41 u8 slave_addr;
42 int slaveaddr;
43 42
44 /* Register for the SDVO device: SDVOB or SDVOC */ 43 /* Register for the SDVO device: SDVOB or SDVOC */
45 int output_device; 44 int output_device;
@@ -146,13 +145,13 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
146 145
147 struct i2c_msg msgs[] = { 146 struct i2c_msg msgs[] = {
148 { 147 {
149 .addr = sdvo_priv->i2c_bus->slave_addr, 148 .addr = sdvo_priv->slave_addr >> 1,
150 .flags = 0, 149 .flags = 0,
151 .len = 1, 150 .len = 1,
152 .buf = out_buf, 151 .buf = out_buf,
153 }, 152 },
154 { 153 {
155 .addr = sdvo_priv->i2c_bus->slave_addr, 154 .addr = sdvo_priv->slave_addr >> 1,
156 .flags = I2C_M_RD, 155 .flags = I2C_M_RD,
157 .len = 1, 156 .len = 1,
158 .buf = buf, 157 .buf = buf,
@@ -162,7 +161,7 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
162 out_buf[0] = addr; 161 out_buf[0] = addr;
163 out_buf[1] = 0; 162 out_buf[1] = 0;
164 163
165 if ((ret = i2c_transfer(&sdvo_priv->i2c_bus->adapter, msgs, 2)) == 2) 164 if ((ret = i2c_transfer(intel_output->i2c_bus, msgs, 2)) == 2)
166 { 165 {
167 *ch = buf[0]; 166 *ch = buf[0];
168 return true; 167 return true;
@@ -175,10 +174,11 @@ static bool intel_sdvo_read_byte(struct intel_output *intel_output, u8 addr,
175static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr, 174static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
176 u8 ch) 175 u8 ch)
177{ 176{
177 struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
178 u8 out_buf[2]; 178 u8 out_buf[2];
179 struct i2c_msg msgs[] = { 179 struct i2c_msg msgs[] = {
180 { 180 {
181 .addr = intel_output->i2c_bus->slave_addr, 181 .addr = sdvo_priv->slave_addr >> 1,
182 .flags = 0, 182 .flags = 0,
183 .len = 2, 183 .len = 2,
184 .buf = out_buf, 184 .buf = out_buf,
@@ -188,7 +188,7 @@ static bool intel_sdvo_write_byte(struct intel_output *intel_output, int addr,
188 out_buf[0] = addr; 188 out_buf[0] = addr;
189 out_buf[1] = ch; 189 out_buf[1] = ch;
190 190
191 if (i2c_transfer(&intel_output->i2c_bus->adapter, msgs, 1) == 1) 191 if (i2c_transfer(intel_output->i2c_bus, msgs, 1) == 1)
192 { 192 {
193 return true; 193 return true;
194 } 194 }
@@ -1369,9 +1369,8 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
1369 struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv; 1369 struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
1370 struct edid *edid = NULL; 1370 struct edid *edid = NULL;
1371 1371
1372 intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
1373 edid = drm_get_edid(&intel_output->base, 1372 edid = drm_get_edid(&intel_output->base,
1374 &intel_output->ddc_bus->adapter); 1373 intel_output->ddc_bus);
1375 if (edid != NULL) { 1374 if (edid != NULL) {
1376 sdvo_priv->is_hdmi = drm_detect_hdmi_monitor(edid); 1375 sdvo_priv->is_hdmi = drm_detect_hdmi_monitor(edid);
1377 kfree(edid); 1376 kfree(edid);
@@ -1549,7 +1548,6 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
1549static void intel_sdvo_get_lvds_modes(struct drm_connector *connector) 1548static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1550{ 1549{
1551 struct intel_output *intel_output = to_intel_output(connector); 1550 struct intel_output *intel_output = to_intel_output(connector);
1552 struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
1553 struct drm_i915_private *dev_priv = connector->dev->dev_private; 1551 struct drm_i915_private *dev_priv = connector->dev->dev_private;
1554 1552
1555 /* 1553 /*
@@ -1557,8 +1555,6 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
1557 * Assume that the preferred modes are 1555 * Assume that the preferred modes are
1558 * arranged in priority order. 1556 * arranged in priority order.
1559 */ 1557 */
1560 /* set the bus switch and get the modes */
1561 intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
1562 intel_ddc_get_modes(intel_output); 1558 intel_ddc_get_modes(intel_output);
1563 if (list_empty(&connector->probed_modes) == false) 1559 if (list_empty(&connector->probed_modes) == false)
1564 return; 1560 return;
@@ -1709,7 +1705,7 @@ intel_sdvo_chan_to_intel_output(struct intel_i2c_chan *chan)
1709 1705
1710 list_for_each_entry(connector, 1706 list_for_each_entry(connector,
1711 &dev->mode_config.connector_list, head) { 1707 &dev->mode_config.connector_list, head) {
1712 if (to_intel_output(connector)->ddc_bus == chan) { 1708 if (to_intel_output(connector)->ddc_bus == &chan->adapter) {
1713 intel_output = to_intel_output(connector); 1709 intel_output = to_intel_output(connector);
1714 break; 1710 break;
1715 } 1711 }
@@ -1723,7 +1719,7 @@ static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
1723 struct intel_output *intel_output; 1719 struct intel_output *intel_output;
1724 struct intel_sdvo_priv *sdvo_priv; 1720 struct intel_sdvo_priv *sdvo_priv;
1725 struct i2c_algo_bit_data *algo_data; 1721 struct i2c_algo_bit_data *algo_data;
1726 struct i2c_algorithm *algo; 1722 const struct i2c_algorithm *algo;
1727 1723
1728 algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data; 1724 algo_data = (struct i2c_algo_bit_data *)i2c_adap->algo_data;
1729 intel_output = 1725 intel_output =
@@ -1733,7 +1729,7 @@ static int intel_sdvo_master_xfer(struct i2c_adapter *i2c_adap,
1733 return -EINVAL; 1729 return -EINVAL;
1734 1730
1735 sdvo_priv = intel_output->dev_priv; 1731 sdvo_priv = intel_output->dev_priv;
1736 algo = (struct i2c_algorithm *)intel_output->i2c_bus->adapter.algo; 1732 algo = intel_output->i2c_bus->algo;
1737 1733
1738 intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus); 1734 intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
1739 return algo->master_xfer(i2c_adap, msgs, num); 1735 return algo->master_xfer(i2c_adap, msgs, num);
@@ -1785,13 +1781,11 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
1785 struct drm_connector *connector; 1781 struct drm_connector *connector;
1786 struct intel_output *intel_output; 1782 struct intel_output *intel_output;
1787 struct intel_sdvo_priv *sdvo_priv; 1783 struct intel_sdvo_priv *sdvo_priv;
1788 struct intel_i2c_chan *i2cbus = NULL; 1784
1789 struct intel_i2c_chan *ddcbus = NULL;
1790 int connector_type; 1785 int connector_type;
1791 u8 ch[0x40]; 1786 u8 ch[0x40];
1792 int i; 1787 int i;
1793 int encoder_type, output_id; 1788 int encoder_type;
1794 u8 slave_addr;
1795 1789
1796 intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL); 1790 intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
1797 if (!intel_output) { 1791 if (!intel_output) {
@@ -1799,29 +1793,24 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
1799 } 1793 }
1800 1794
1801 sdvo_priv = (struct intel_sdvo_priv *)(intel_output + 1); 1795 sdvo_priv = (struct intel_sdvo_priv *)(intel_output + 1);
1796 sdvo_priv->output_device = output_device;
1797
1798 intel_output->dev_priv = sdvo_priv;
1802 intel_output->type = INTEL_OUTPUT_SDVO; 1799 intel_output->type = INTEL_OUTPUT_SDVO;
1803 1800
1804 /* setup the DDC bus. */ 1801 /* setup the DDC bus. */
1805 if (output_device == SDVOB) 1802 if (output_device == SDVOB)
1806 i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB"); 1803 intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOB");
1807 else 1804 else
1808 i2cbus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC"); 1805 intel_output->i2c_bus = intel_i2c_create(dev, GPIOE, "SDVOCTRL_E for SDVOC");
1809 1806
1810 if (!i2cbus) 1807 if (!intel_output->i2c_bus)
1811 goto err_inteloutput; 1808 goto err_inteloutput;
1812 1809
1813 slave_addr = intel_sdvo_get_slave_addr(dev, output_device); 1810 sdvo_priv->slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
1814 sdvo_priv->i2c_bus = i2cbus;
1815 1811
1816 if (output_device == SDVOB) { 1812 /* Save the bit-banging i2c functionality for use by the DDC wrapper */
1817 output_id = 1; 1813 intel_sdvo_i2c_bit_algo.functionality = intel_output->i2c_bus->algo->functionality;
1818 } else {
1819 output_id = 2;
1820 }
1821 sdvo_priv->i2c_bus->slave_addr = slave_addr >> 1;
1822 sdvo_priv->output_device = output_device;
1823 intel_output->i2c_bus = i2cbus;
1824 intel_output->dev_priv = sdvo_priv;
1825 1814
1826 /* Read the regs to test if we can talk to the device */ 1815 /* Read the regs to test if we can talk to the device */
1827 for (i = 0; i < 0x40; i++) { 1816 for (i = 0; i < 0x40; i++) {
@@ -1835,17 +1824,15 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
1835 1824
1836 /* setup the DDC bus. */ 1825 /* setup the DDC bus. */
1837 if (output_device == SDVOB) 1826 if (output_device == SDVOB)
1838 ddcbus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS"); 1827 intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOB DDC BUS");
1839 else 1828 else
1840 ddcbus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS"); 1829 intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "SDVOC DDC BUS");
1841 1830
1842 if (ddcbus == NULL) 1831 if (intel_output->ddc_bus == NULL)
1843 goto err_i2c; 1832 goto err_i2c;
1844 1833
1845 intel_sdvo_i2c_bit_algo.functionality = 1834 /* Wrap with our custom algo which switches to DDC mode */
1846 intel_output->i2c_bus->adapter.algo->functionality; 1835 intel_output->ddc_bus->algo = &intel_sdvo_i2c_bit_algo;
1847 ddcbus->adapter.algo = &intel_sdvo_i2c_bit_algo;
1848 intel_output->ddc_bus = ddcbus;
1849 1836
1850 /* In defaut case sdvo lvds is false */ 1837 /* In defaut case sdvo lvds is false */
1851 sdvo_priv->is_lvds = false; 1838 sdvo_priv->is_lvds = false;
@@ -1965,9 +1952,10 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
1965 return true; 1952 return true;
1966 1953
1967err_i2c: 1954err_i2c:
1968 if (ddcbus != NULL) 1955 if (intel_output->ddc_bus != NULL)
1969 intel_i2c_destroy(intel_output->ddc_bus); 1956 intel_i2c_destroy(intel_output->ddc_bus);
1970 intel_i2c_destroy(intel_output->i2c_bus); 1957 if (intel_output->i2c_bus != NULL)
1958 intel_i2c_destroy(intel_output->i2c_bus);
1971err_inteloutput: 1959err_inteloutput:
1972 kfree(intel_output); 1960 kfree(intel_output);
1973 1961