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| author | Thierry Reding <treding@nvidia.com> | 2014-08-05 11:14:02 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-11-13 13:55:59 +0100 |
| commit | 083d573fd013c9996d7462d39b894d360311d750 (patch) | |
| tree | 693f575789c76f202cf2470b052b55aacc50475b /drivers/gpu/drm/drm_mipi_dsi.c | |
| parent | 009081e0874d28b504ffa1842f6ddfafd2dd36fc (diff) | |
| download | op-kernel-dev-083d573fd013c9996d7462d39b894d360311d750.zip op-kernel-dev-083d573fd013c9996d7462d39b894d360311d750.tar.gz | |
drm/dsi: Implement DCS nop command
Provide a small convenience wrapper that transmits a DCS nop command.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dsi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 431e96f..d953b7f 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -567,6 +567,24 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data, EXPORT_SYMBOL(mipi_dsi_dcs_read); /** + * mipi_dsi_dcs_nop() - send DCS nop packet + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi) +{ + ssize_t err; + + err = mipi_dsi_dcs_write(dsi, MIPI_DCS_NOP, NULL, 0); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_nop); + +/** * mipi_dsi_dcs_enter_sleep_mode() - disable all unnecessary blocks inside the * display module except interface communication * @dsi: DSI peripheral device |
