diff options
Diffstat (limited to 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/dsi.c | 34 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/dsi.h | 10 |
2 files changed, 43 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c index 0e599f0417c0..71c1b1a64ccf 100644 --- a/drivers/gpu/drm/tegra/dsi.c +++ b/drivers/gpu/drm/tegra/dsi.c @@ -361,6 +361,33 @@ static int tegra_dsi_get_muldiv(enum mipi_dsi_pixel_format format, return 0; } +static int tegra_dsi_get_format(enum mipi_dsi_pixel_format format, + enum tegra_dsi_format *fmt) +{ + switch (format) { + case MIPI_DSI_FMT_RGB888: + *fmt = TEGRA_DSI_FORMAT_24P; + break; + + case MIPI_DSI_FMT_RGB666: + *fmt = TEGRA_DSI_FORMAT_18NP; + break; + + case MIPI_DSI_FMT_RGB666_PACKED: + *fmt = TEGRA_DSI_FORMAT_18P; + break; + + case MIPI_DSI_FMT_RGB565: + *fmt = TEGRA_DSI_FORMAT_16P; + break; + + default: + return -EINVAL; + } + + return 0; +} + static int tegra_output_dsi_enable(struct tegra_output *output) { struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc); @@ -369,6 +396,7 @@ static int tegra_output_dsi_enable(struct tegra_output *output) struct tegra_dsi *dsi = to_dsi(output); /* FIXME: don't hardcode this */ const u32 *pkt_seq = pkt_seq_vnb_syne; + enum tegra_dsi_format format; unsigned long value; int err; @@ -376,13 +404,17 @@ static int tegra_output_dsi_enable(struct tegra_output *output) if (err < 0) return err; + err = tegra_dsi_get_format(dsi->format, &format); + if (err < 0) + return err; + err = clk_enable(dsi->clk); if (err < 0) return err; reset_control_deassert(dsi->rst); - value = DSI_CONTROL_CHANNEL(0) | DSI_CONTROL_FORMAT(dsi->format) | + value = DSI_CONTROL_CHANNEL(0) | DSI_CONTROL_FORMAT(format) | DSI_CONTROL_LANES(dsi->lanes - 1) | DSI_CONTROL_SOURCE(dc->pipe); tegra_dsi_writel(dsi, value, DSI_CONTROL); diff --git a/drivers/gpu/drm/tegra/dsi.h b/drivers/gpu/drm/tegra/dsi.h index 1db5cc24ea91..5ce610d08d77 100644 --- a/drivers/gpu/drm/tegra/dsi.h +++ b/drivers/gpu/drm/tegra/dsi.h @@ -117,4 +117,14 @@ #define DSI_INIT_SEQ_DATA_14 0x5e #define DSI_INIT_SEQ_DATA_15 0x5f +/* + * pixel format as used in the DSI_CONTROL_FORMAT field + */ +enum tegra_dsi_format { + TEGRA_DSI_FORMAT_16P, + TEGRA_DSI_FORMAT_18NP, + TEGRA_DSI_FORMAT_18P, + TEGRA_DSI_FORMAT_24P, +}; + #endif |