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drm/panel: s6e63m0: Support 3WIRE protocol

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The panel can be connected using 3WIRE, then it is
however necessary that the flag SPI_3WIRE is preserved
on the device, as we set this from generic device tree
parsing code (or similar). Just |= the SPI mode.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201110234653.2248594-5-linus.walleij@linaro.org
This commit is contained in:
Linus Walleij 2020-11-11 00:46:52 +01:00
parent 9cea169835
commit 4680e9cc9d
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/panel/panel-samsung-s6e63m0-spi.c
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@ -72,7 +72,8 @@ static int s6e63m0_spi_probe(struct spi_device *spi)
int ret;
spi->bits_per_word = 9;
spi->mode = SPI_MODE_3;
/* Preserve e.g. SPI_3WIRE setting */
spi->mode |= SPI_MODE_3;
ret = spi_setup(spi);
if (ret < 0) {
dev_err(dev, "spi setup failed.\n");