Re: [PATCH v1 2/2] drm/tinydrm: add driver for ST7735R panels

[Noralf Trønnes <noralf@xxxxxxxxxxx>]

Den 06.12.2017 19.27, skrev Noralf Trønnes:
> Den 29.11.2017 04.01, skrev David Lechner:
> > This adds a new driver for Sitronix ST7735R display panels.
> >
> > This has been tested using an Adafruit 1.8" TFT.
> >
> > Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
> > ---

<snip>

> > diff --git a/drivers/gpu/drm/tinydrm/st7735r.c 
> > b/drivers/gpu/drm/tinydrm/st7735r.c

<snip>

> > +static struct drm_driver st7735r_driver = {
> > +    .driver_features    = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
> > +                  DRIVER_ATOMIC,
> > +    .fops            = &st7735r_fops,
> > +    TINYDRM_GEM_DRIVER_OPS,
> > +    .lastclose        = tinydrm_lastclose,

tinydrm_lastclose() is going away, please use:

    .lastclose        = drm_fb_helper_lastclose,

Noralf.

> > +    .name            = "st7735r",
> > +    .desc            = "Sitronix ST7735R",
> > +    .date            = "20171128",
> > +    .major            = 1,
> > +    .minor            = 0,
> > +};
> > +
> > +static const struct of_device_id st7735r_of_match[] = {
> > +    { .compatible = "sitronix,st7735r-jd-t18003-t01" },
> > +    {},
> > +};
> > +MODULE_DEVICE_TABLE(of, st7735r_of_match);
> > +
> > +static const struct spi_device_id st7735r_id[] = {
> > +    { "st7735r-jd-t18003-t01", 0 },
> > +    { },
> > +};
> > +MODULE_DEVICE_TABLE(spi, st7735r_id);
> > +
> > +static int st7735r_probe(struct spi_device *spi)
> > +{
> > +    struct device *dev = &spi->dev;
> > +    struct mipi_dbi *mipi;
> > +    struct gpio_desc *dc;
> > +    u32 rotation = 0;
> > +    int ret;
> > +
> > +    mipi = devm_kzalloc(dev, sizeof(*mipi), GFP_KERNEL);
> > +    if (!mipi)
> > +        return -ENOMEM;
> > +
> > +    mipi->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
> > +    if (IS_ERR(mipi->reset)) {
> > +        DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n");
> > +        return PTR_ERR(mipi->reset);
> > +    }
> > +
> > +    dc = devm_gpiod_get(dev, "dc", GPIOD_OUT_LOW);
> > +    if (IS_ERR(dc)) {
> > +        DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
> > +        return PTR_ERR(dc);
> > +    }
> > +
> > +    mipi->backlight = tinydrm_of_find_backlight(dev);
> > +    if (IS_ERR(mipi->backlight))
> > +        return PTR_ERR(mipi->backlight);
> > +
> > +    device_property_read_u32(dev, "rotation", &rotation);
> > +
> > +    ret = mipi_dbi_spi_init(spi, mipi, dc);
> > +    if (ret)
> > +        return ret;
> > +
> > +    ret = mipi_dbi_init(&spi->dev, mipi, &st7735r_pipe_funcs,
> > +                &st7735r_driver, &st7735r_mode, rotation);
> > +    if (ret)
> > +        return ret;
> > +
> > +    spi_set_drvdata(spi, mipi);
> > +
> > +    return devm_tinydrm_register(&mipi->tinydrm);
> > +}
> > +
> > +static void st7735r_shutdown(struct spi_device *spi)
> > +{
> > +    struct mipi_dbi *mipi = spi_get_drvdata(spi);
> > +
> > +    tinydrm_shutdown(&mipi->tinydrm);
> > +}
> > +
> > +static struct spi_driver st7735r_spi_driver = {
> > +    .driver = {
> > +        .name = "st7735r",
> > +        .owner = THIS_MODULE,
> > +        .of_match_table = st7735r_of_match,
> > +    },
> > +    .id_table = st7735r_id,
> > +    .probe = st7735r_probe,
> > +    .shutdown = st7735r_shutdown,
> > +};
> > +module_spi_driver(st7735r_spi_driver);
> > +
> > +MODULE_DESCRIPTION("Sitronix ST7735R DRM driver");
> > +MODULE_AUTHOR("David Lechner <david@xxxxxxxxxxxxxx>");
> > +MODULE_LICENSE("GPL");
>
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