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path: root/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
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Diffstat (limited to 'drivers/video/omap2/displays/panel-tpo-td043mtea1.c')
-rw-r--r--drivers/video/omap2/displays/panel-tpo-td043mtea1.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
index 6b6643911d29..048c98381ef6 100644
--- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
@@ -63,6 +63,9 @@ struct tpo_td043_device {
63 u32 power_on_resume:1; 63 u32 power_on_resume:1;
64}; 64};
65 65
66/* used to pass spi_device from SPI to DSS portion of the driver */
67static struct tpo_td043_device *g_tpo_td043;
68
66static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data) 69static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data)
67{ 70{
68 struct spi_message m; 71 struct spi_message m;
@@ -403,7 +406,7 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev)
403 406
404static int tpo_td043_probe(struct omap_dss_device *dssdev) 407static int tpo_td043_probe(struct omap_dss_device *dssdev)
405{ 408{
406 struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev); 409 struct tpo_td043_device *tpo_td043 = g_tpo_td043;
407 int nreset_gpio = dssdev->reset_gpio; 410 int nreset_gpio = dssdev->reset_gpio;
408 int ret = 0; 411 int ret = 0;
409 412
@@ -440,6 +443,8 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev)
440 if (ret) 443 if (ret)
441 dev_warn(&dssdev->dev, "failed to create sysfs files\n"); 444 dev_warn(&dssdev->dev, "failed to create sysfs files\n");
442 445
446 dev_set_drvdata(&dssdev->dev, tpo_td043);
447
443 return 0; 448 return 0;
444 449
445fail_gpio_req: 450fail_gpio_req:
@@ -505,6 +510,9 @@ static int tpo_td043_spi_probe(struct spi_device *spi)
505 return -ENODEV; 510 return -ENODEV;
506 } 511 }
507 512
513 if (g_tpo_td043 != NULL)
514 return -EBUSY;
515
508 spi->bits_per_word = 16; 516 spi->bits_per_word = 16;
509 spi->mode = SPI_MODE_0; 517 spi->mode = SPI_MODE_0;
510 518
@@ -521,7 +529,7 @@ static int tpo_td043_spi_probe(struct spi_device *spi)
521 tpo_td043->spi = spi; 529 tpo_td043->spi = spi;
522 tpo_td043->nreset_gpio = dssdev->reset_gpio; 530 tpo_td043->nreset_gpio = dssdev->reset_gpio;
523 dev_set_drvdata(&spi->dev, tpo_td043); 531 dev_set_drvdata(&spi->dev, tpo_td043);
524 dev_set_drvdata(&dssdev->dev, tpo_td043); 532 g_tpo_td043 = tpo_td043;
525 533
526 omap_dss_register_driver(&tpo_td043_driver); 534 omap_dss_register_driver(&tpo_td043_driver);
527 535
@@ -534,6 +542,7 @@ static int tpo_td043_spi_remove(struct spi_device *spi)
534 542
535 omap_dss_unregister_driver(&tpo_td043_driver); 543 omap_dss_unregister_driver(&tpo_td043_driver);
536 kfree(tpo_td043); 544 kfree(tpo_td043);
545 g_tpo_td043 = NULL;
537 546
538 return 0; 547 return 0;
539} 548}