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| author | Linus Walleij <linus.walleij@linaro.org> | 2020-11-11 00:46:52 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-11-16 00:48:16 +0100 |
| commit | 4680e9cc9d8bc9db8a7489cb77a8d19962bd580e (patch) | |
| tree | 7619cf93fd8b1cc335ad8a52e7278e217ca7b621 /drivers | |
| parent | drm/panel: s6e63m0: Add some explanations (diff) | |
| download | linux-4680e9cc9d8bc9db8a7489cb77a8d19962bd580e.tar.xz linux-4680e9cc9d8bc9db8a7489cb77a8d19962bd580e.zip | |
drm/panel: s6e63m0: Support 3WIRE protocol
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
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-samsung-s6e63m0-spi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-spi.c b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-spi.c index fa24e6889ec1..326deb3177b6 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-spi.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-spi.c @@ -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"); |