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| author |   Noralf Trønnes <noralf@tronnes.org> | 2019-07-19 17:59:11 +0200 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2019-07-23 15:46:56 +0200 |
| commit | 083a6c23b9ecf478265bb27ccacb8d587732058e (patch) | |
| tree | 8eb5c8f95bc4b54f2180375b98d4eb153e87d5f1 /include/drm | |
| parent | drm/tinydrm: Remove tinydrm_spi_max_transfer_size() (diff) | |
| download | linux-dev-083a6c23b9ecf478265bb27ccacb8d587732058e.tar.xz linux-dev-083a6c23b9ecf478265bb27ccacb8d587732058e.zip | |
drm/tinydrm: Clean up tinydrm_spi_transfer()
Prep work before moving the function to mipi-dbi.
tinydrm_spi_transfer() was made to support one class of drivers in
drivers/staging/fbtft that has not been converted to DRM yet, so strip
away the unused functionality:
- Start byte (header) is not used.
- No driver relies on the automatic 16-bit byte swapping on little endian
machines with SPI controllers only supporting 8 bits per word.
Other changes:
- No need to initialize ret
- No need for the WARN since mipi-dbi only uses 8 and 16 bpw.
- Use spi_message_init_with_transfers()
Cc: David Lechner <david@lechnology.com>
Acked-by: : David Lechner <david@lechnology.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190719155916.62465-7-noralf@tronnes.org
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/tinydrm/tinydrm-helpers.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/drm/tinydrm/tinydrm-helpers.h b/include/drm/tinydrm/tinydrm-helpers.h index 10b35375a009..708c5a7d51e0 100644 --- a/include/drm/tinydrm/tinydrm-helpers.h +++ b/include/drm/tinydrm/tinydrm-helpers.h @@ -42,7 +42,6 @@ int tinydrm_display_pipe_init(struct drm_device *drm, unsigned int rotation); int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz, - struct spi_transfer *header, u8 bpw, const void *buf, - size_t len); + u8 bpw, const void *buf, size_t len); #endif /* __LINUX_TINYDRM_HELPERS_H */ |