| Message ID | 1460971325-26982-1-git-send-email-simhavcs@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
HI, I have not got response from maintainers. Did i miss anything? On Mon, Apr 18, 2016 at 2:52 PM, Vinay Simha BN <simhavcs@gmail.com> wrote: > Provide a small convenience wrapper that transmits > a DCS get_display_mode command. > > Signed-off-by: Vinay Simha BN <simhavcs@gmail.com> > --- > drivers/gpu/drm/drm_mipi_dsi.c | 24 ++++++++++++++++++++++++ > include/drm/drm_mipi_dsi.h | 1 + > 2 files changed, 25 insertions(+) > > diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c > index f5d8083..2e032ea 100644 > --- a/drivers/gpu/drm/drm_mipi_dsi.c > +++ b/drivers/gpu/drm/drm_mipi_dsi.c > @@ -792,6 +792,30 @@ int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode) > EXPORT_SYMBOL(mipi_dsi_dcs_get_power_mode); > > /** > + * mipi_dsi_dcs_get_display_mode() - query the display module's image mode > + * @dsi: DSI peripheral device > + * @mode: return location for the display image mode > + * > + * Return: 0 on success or a negative error code on failure. > + */ > +int mipi_dsi_dcs_get_display_mode(struct mipi_dsi_device *dsi, u8 *mode) > +{ > + ssize_t err; > + > + err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_DISPLAY_MODE, mode, > + sizeof(*mode)); > + if (err <= 0) { > + if (err == 0) > + err = -ENODATA; > + > + return err; > + } > + > + return 0; > +} > +EXPORT_SYMBOL(mipi_dsi_dcs_get_display_mode); > + > +/** > * mipi_dsi_dcs_get_pixel_format() - gets the pixel format for the RGB image > * data used by the interface > * @dsi: DSI peripheral device > diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h > index 7a9840f..48fcd65 100644 > --- a/include/drm/drm_mipi_dsi.h > +++ b/include/drm/drm_mipi_dsi.h > @@ -254,6 +254,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data, > int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi); > int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi); > int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode); > +int mipi_dsi_dcs_get_display_mode(struct mipi_dsi_device *dsi, u8 *mode); > int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format); > int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi); > int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi); > -- > 2.1.2 >
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index f5d8083..2e032ea 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -792,6 +792,30 @@ int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode) EXPORT_SYMBOL(mipi_dsi_dcs_get_power_mode); /** + * mipi_dsi_dcs_get_display_mode() - query the display module's image mode + * @dsi: DSI peripheral device + * @mode: return location for the display image mode + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_get_display_mode(struct mipi_dsi_device *dsi, u8 *mode) +{ + ssize_t err; + + err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_DISPLAY_MODE, mode, + sizeof(*mode)); + if (err <= 0) { + if (err == 0) + err = -ENODATA; + + return err; + } + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_get_display_mode); + +/** * mipi_dsi_dcs_get_pixel_format() - gets the pixel format for the RGB image * data used by the interface * @dsi: DSI peripheral device diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index 7a9840f..48fcd65 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -254,6 +254,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data, int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode); +int mipi_dsi_dcs_get_display_mode(struct mipi_dsi_device *dsi, u8 *mode); int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format); int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
Provide a small convenience wrapper that transmits a DCS get_display_mode command. Signed-off-by: Vinay Simha BN <simhavcs@gmail.com> --- drivers/gpu/drm/drm_mipi_dsi.c | 24 ++++++++++++++++++++++++ include/drm/drm_mipi_dsi.h | 1 + 2 files changed, 25 insertions(+)