OMAPDSS: tpo-td043 panel: fix data passing between SPI/DSS parts
This driver uses omap_dss_device that it gets from a board file through SPI platfrom_data pointer to pass data from SPI to DSS portion of the driver by using dev_set_drvdata(). However this trick no longer works, as DSS core no longer uses omap_dss_device from a board file to create the real device, so use a global pointer to accomplish this instead, like other SPI panel drivers do. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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@ -63,6 +63,9 @@ struct tpo_td043_device {
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u32 power_on_resume:1;
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};
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/* used to pass spi_device from SPI to DSS portion of the driver */
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static struct tpo_td043_device *g_tpo_td043;
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static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data)
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{
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struct spi_message m;
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@ -403,7 +406,7 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev)
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static int tpo_td043_probe(struct omap_dss_device *dssdev)
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{
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struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
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struct tpo_td043_device *tpo_td043 = g_tpo_td043;
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int nreset_gpio = dssdev->reset_gpio;
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int ret = 0;
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@ -440,6 +443,8 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev)
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if (ret)
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dev_warn(&dssdev->dev, "failed to create sysfs files\n");
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dev_set_drvdata(&dssdev->dev, tpo_td043);
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return 0;
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fail_gpio_req:
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@ -505,6 +510,9 @@ static int tpo_td043_spi_probe(struct spi_device *spi)
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return -ENODEV;
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}
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if (g_tpo_td043 != NULL)
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return -EBUSY;
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spi->bits_per_word = 16;
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spi->mode = SPI_MODE_0;
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@ -521,7 +529,7 @@ static int tpo_td043_spi_probe(struct spi_device *spi)
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tpo_td043->spi = spi;
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tpo_td043->nreset_gpio = dssdev->reset_gpio;
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dev_set_drvdata(&spi->dev, tpo_td043);
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dev_set_drvdata(&dssdev->dev, tpo_td043);
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g_tpo_td043 = tpo_td043;
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omap_dss_register_driver(&tpo_td043_driver);
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@ -534,6 +542,7 @@ static int tpo_td043_spi_remove(struct spi_device *spi)
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omap_dss_unregister_driver(&tpo_td043_driver);
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kfree(tpo_td043);
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g_tpo_td043 = NULL;
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return 0;
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}
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