drm/dsi: Implement DCS soft_reset command
Provide a small convenience wrapper that transmits a DCS soft_reset command. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
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@ -584,6 +584,24 @@ int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi)
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}
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EXPORT_SYMBOL(mipi_dsi_dcs_nop);
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/**
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* mipi_dsi_dcs_soft_reset() - perform a software reset of the display module
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* @dsi: DSI peripheral device
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*
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* Return: 0 on success or a negative error code on failure.
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*/
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int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi)
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{
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ssize_t err;
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err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SOFT_RESET, NULL, 0);
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if (err < 0)
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return err;
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return 0;
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}
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EXPORT_SYMBOL(mipi_dsi_dcs_soft_reset);
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/**
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* mipi_dsi_dcs_enter_sleep_mode() - disable all unnecessary blocks inside the
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* display module except interface communication
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@ -192,6 +192,7 @@ ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
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ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
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size_t len);
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int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
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int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
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int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
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int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
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int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
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