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| author |   Noralf Trønnes <noralf@tronnes.org> | 2019-07-19 17:59:13 +0200 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2019-07-23 15:47:58 +0200 |
| commit | f729d8d9628d4093675abfd62d8d3a06d3d11732 (patch) | |
| tree | 5015fdcb4b0e93a6fd9e69b6bd650559328a2e53 /drivers/gpu/drm/tinydrm | |
| parent | drm/tinydrm: Move tinydrm_spi_transfer() (diff) | |
| download | linux-dev-f729d8d9628d4093675abfd62d8d3a06d3d11732.tar.xz linux-dev-f729d8d9628d4093675abfd62d8d3a06d3d11732.zip | |
drm/tinydrm: Move tinydrm_machine_little_endian()
The tinydrm helper is going away so move it into the only user mipi-dbi.
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190719155916.62465-9-noralf@tronnes.org
Diffstat (limited to 'drivers/gpu/drm/tinydrm')
| -rw-r--r-- | drivers/gpu/drm/tinydrm/mipi-dbi.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c index 6a8f2d66377f..73db287e5c52 100644 --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c @@ -628,6 +628,15 @@ u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len) } EXPORT_SYMBOL(mipi_dbi_spi_cmd_max_speed); +static bool mipi_dbi_machine_little_endian(void) +{ +#if defined(__LITTLE_ENDIAN) + return true; +#else + return false; +#endif +} + /* * MIPI DBI Type C Option 1 * @@ -650,7 +659,7 @@ static int mipi_dbi_spi1e_transfer(struct mipi_dbi *mipi, int dc, const void *buf, size_t len, unsigned int bpw) { - bool swap_bytes = (bpw == 16 && tinydrm_machine_little_endian()); + bool swap_bytes = (bpw == 16 && mipi_dbi_machine_little_endian()); size_t chunk, max_chunk = mipi->tx_buf9_len; struct spi_device *spi = mipi->spi; struct spi_transfer tr = { @@ -799,7 +808,7 @@ static int mipi_dbi_spi1_transfer(struct mipi_dbi *mipi, int dc, size_t chunk = min(len, max_chunk); unsigned int i; - if (bpw == 16 && tinydrm_machine_little_endian()) { + if (bpw == 16 && mipi_dbi_machine_little_endian()) { for (i = 0; i < (chunk * 2); i += 2) { dst16[i] = *src16 >> 8; dst16[i + 1] = *src16++ & 0xFF; @@ -991,7 +1000,7 @@ int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi, if (dc) { mipi->command = mipi_dbi_typec3_command; mipi->dc = dc; - if (tinydrm_machine_little_endian() && !spi_is_bpw_supported(spi, 16)) + if (mipi_dbi_machine_little_endian() && !spi_is_bpw_supported(spi, 16)) mipi->swap_bytes = true; } else { mipi->command = mipi_dbi_typec1_command; |