diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/anx7580.c | 115 |
1 files changed, 1 insertions, 114 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/anx7580.c b/drivers/gpu/drm/bridge/analogix/anx7580.c index 3b4f5b416111..2852f8671f59 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7580.c +++ b/drivers/gpu/drm/bridge/analogix/anx7580.c @@ -271,95 +271,6 @@ static void anx7580_get_dp_vtotal(anx7580_t * anx, uint16_t * dp_vtotal) *dp_vtotal = high << 8 | low; } -static void anx7580_clear_interrupts( anx7580_t * anx ) -{ - // clear the audio int mask so that we can service and clear interrupts - // due to the audio pll resetting. this interrupt will mask future interrupts if not handled - anx7580_i2c_write_byte( anx, SLAVEID_DP_TOP, ADDR_INTR_MASK, ~AUDIO_INTR ); - // from anx7530 android driver: clear OCM based interrupt interface? - // clear 01:90 and 01:91 by i2c write block funciton - anx7580_i2c_write_byte( anx, SLAVEID_SPI, INT_NOTIFY_MCU0, 0 ); - anx7580_i2c_write_byte( anx, SLAVEID_SPI, INT_NOTIFY_MCU1, 0 ); - // Clear SW and PLL interrupts, and unmask PLL interrupt - // otherwise PLL interrupt blocks future SW interrupts - anx7580_i2c_write_byte( anx, SLAVEID_DP_TOP, ADDR_SW_INTR_CTRL, 0 ); -} - -static irqreturn_t anx7580_irq_handler_top(int irq, void *dev_id) -{ - // handle irq in threaded handler for i2c functions - return IRQ_WAKE_THREAD; -} - -// anx7580 interrupt handler -// main purpose is to handle refresh rate changes -static irqreturn_t anx7580_irq_handler( int irq, void *dev_id ) -{ - uint16_t dp_vtotal_new; - uint8_t notify_reg[2]; - int32_t vfp; - struct i2c_client *client = dev_id; - anx7580_t *anx = dev_get_drvdata( &client->dev ); - anx7580_i2c_read_block( anx, SLAVEID_SPI, INT_NOTIFY_MCU0, 2, notify_reg ); - - //pr_info( "anx7580: got int %x %x\n", notify_reg[0], notify_reg[1]); - - // video stream change, check msa for a change in video mode - if ( notify_reg[0] & VIDEO_INPUT_EMPTY ) { - // Do nothing here, we get this interrupt before the new mode is stable - } else if ( notify_reg[0] & VIDEO_STABLE ) { - anx7580_get_dp_vtotal( anx, &dp_vtotal_new ); - pr_info( "anx7580: vtotal old %d vtotal new %d\n", anx->dp_vtotal, dp_vtotal_new ); - if( anx->dp_vtotal != dp_vtotal_new && dp_vtotal_new > 0 ) - { - #define PANEL_VACT 1280 - #define PANEL_VBP 22 /* for EV1 Panels TODO make this configurable */ - vfp = dp_vtotal_new - PANEL_VACT - PANEL_VBP; - if (vfp) - { - pr_info( "anx7580: mode change detected, setting new VFP %d\n", vfp ); - anx->dp_vtotal = dp_vtotal_new; - - // video mode vfp - anx7580_i2c_write_byte( anx, SLAVEID_PPS, REG_ADDR_V_F_PORCH_CFG_L, vfp & 0xff ); // [51] Vfp <7:0> - anx7580_i2c_write_byte( anx, SLAVEID_PPS, REG_ADDR_V_F_PORCH_CFG_H, vfp >> 8 ); // [51] Vfp <13:8> - // mipi vfp - anx7580_i2c_write_byte4( anx, SLAVEID_MIPI_PORT0, VID_VFP_LINES, vfp ); // [186] Vfp (lines) - anx7580_mipi_reset( anx ); - } - } - } - anx7580_clear_interrupts( anx ); - return IRQ_HANDLED; -} - -// on initial setup we sometimes miss the interrupt from the analogix -// so we run a delayed work handler to clean up the interrupt status -static void anx7580_delayed_work_handler(struct work_struct *work) -{ - // check to see if backlight is still in the correct mode - uint8_t int_reg; - uint8_t notify_reg[2]; - - anx7580_t *anx = container_of((struct delayed_work *)work, anx7580_t, work); - - anx7580_i2c_read_byte( anx, SLAVEID_DP_TOP, ADDR_SW_INTR_CTRL, &int_reg ); - anx7580_i2c_read_block( anx, SLAVEID_SPI, INT_NOTIFY_MCU0, 2, notify_reg ); - // if interrupt was set and we missed it, clear it and schedule another check back - // otherwise this would be handled in the interrupt - if ( int_reg || notify_reg[0] || notify_reg[1] ) { - anx7580_clear_interrupts( anx ); - //pr_info("anx7580: schedule another check on in status %x\n", int_reg); - schedule_delayed_work(&anx->work, HZ/4); - } -} - -static void anx7580_work_init(anx7580_t *anx) -{ - INIT_DELAYED_WORK(&anx->work, anx7580_delayed_work_handler); - schedule_delayed_work(&anx->work, HZ/4); -} - // sysfs interface static ssize_t bmode_store(struct device *device, struct device_attribute *attr, @@ -369,23 +280,17 @@ static ssize_t bmode_store(struct device *device, unsigned int mode; anx7580_t *anx = dev_get_drvdata(device); if ( !anx ) { - printk( "anx7580: failed to get anx driver data\n" ); return 0; } result = sscanf( buf, "%d", &mode ); if( result == 1 ) { if ( mode == 1 ){ - pr_info( "anx7580: setting high brightness mode\n" ); anx7580_panel_write_immediate( anx, 0x53, 0xE0 ); // high brightness mode } else if (mode == 2){ - pr_info( "anx7580: setting normal brightness mode in 32 frames\n" ); anx7580_panel_write_immediate( anx, 0x53, 0x28 ); // normal mode, update brightness within 32 frame } else if (mode == 3){ - pr_info( "anx7580: setting normal brightness mode in 1 frame\n" ); anx7580_panel_write_immediate( anx, 0x53, 0x20 ); // normal mode, update brightness within 32 frame - } else { - pr_info( "anx7580: brightness mode %d\n", mode ); } } return count; @@ -398,7 +303,6 @@ static ssize_t bmode_show(struct device *device, anx7580_t *anx = dev_get_drvdata( device ); // TODO return current brightness mode bytes_copied = anx7580_dcs_read( anx, 0x53, 1, &brightness_mode_reg ); - printk("anx7580 read %d bytes\n", bytes_copied); if ( brightness_mode_reg == 0xE0 ) { count = sprintf( buf, "High Brightness\n"); } else if ( brightness_mode_reg == 0x28 ) { @@ -429,7 +333,6 @@ static ssize_t brightness_store(struct device *device, cmd[1] = ( brightness & 0xFF00 ) >> 8; cmd[2] = brightness & 0xFF; - pr_info("anx7580: setting %d brightness\n", brightness); anx7580_panel_write_long( anx, cmd, 3 ); } return count; @@ -442,7 +345,6 @@ static ssize_t brightness_show( struct device *device, struct device_attribute * anx7580_t *anx = dev_get_drvdata( device ); // TODO return current brightness mode bytes_copied = anx7580_dcs_read( anx, 0x51, 2, brightness_reg ); - printk( "anx7580 read %d bytes\n", bytes_copied ); if (bytes_copied) { count = sprintf( buf, "Brightness %d\n", (int)(brightness_reg[0] << 8 | brightness_reg[1]) ); } else { @@ -620,7 +522,7 @@ static int anx7580_probe(struct i2c_client *client, const struct i2c_device_id *id) { anx7580_t *anx; - unsigned int i, irq; + unsigned int i; int ret; if ( !i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK) ) { @@ -650,21 +552,6 @@ static int anx7580_probe(struct i2c_client *client, pr_info("anx7580: initial dp vtotal %d\n", anx->dp_vtotal); } - // setup irq - irq = acpi_dev_gpio_irq_get( ACPI_COMPANION(&client->dev), 0 ); - - if ( irq <= 0 ) { - pr_err( "anx7580: could not get acpi irq %d\n", irq ); - } else { - pr_info( "anx7580: got irq %d\n", irq ); - ret = devm_request_threaded_irq( &client->dev, irq, anx7580_irq_handler_top, anx7580_irq_handler, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "ANX7580_IRQ", client ); - if ( ret ) - pr_err( "anx7580: request interrupt failed with %d\n", ret ); - anx7580_clear_interrupts( anx ); - anx7580_work_init( anx ); - } - for ( i=0; i < ARRAY_SIZE(anx7580_attrs); i++ ) { if ( device_create_file(&client->dev, &anx7580_attrs[i]) ) |