drm/dsi: Add Turn On/Shutdown Peripheral command helpers
The MIPI_DSI_TURN_ON_PERIPHERAL and MIPI_DSI_SHUTDOWN_PERIPHERAL packets are required for some panels, for example the Panasonic VVX10F034N00. Signed-off-by: Werner Johansson <werner.johansson@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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@ -365,6 +365,44 @@ int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
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}
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EXPORT_SYMBOL(mipi_dsi_create_packet);
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/**
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* mipi_dsi_shutdown_peripheral() - sends a Shutdown Peripheral command
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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_shutdown_peripheral(struct mipi_dsi_device *dsi)
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{
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struct mipi_dsi_msg msg = {
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.channel = dsi->channel,
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.type = MIPI_DSI_SHUTDOWN_PERIPHERAL,
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.tx_buf = (u8 [2]) { 0, 0 },
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.tx_len = 2,
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};
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return mipi_dsi_device_transfer(dsi, &msg);
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}
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EXPORT_SYMBOL(mipi_dsi_shutdown_peripheral);
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/**
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* mipi_dsi_turn_on_peripheral() - sends a Turn On Peripheral command
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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_turn_on_peripheral(struct mipi_dsi_device *dsi)
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{
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struct mipi_dsi_msg msg = {
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.channel = dsi->channel,
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.type = MIPI_DSI_TURN_ON_PERIPHERAL,
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.tx_buf = (u8 [2]) { 0, 0 },
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.tx_len = 2,
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};
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return mipi_dsi_device_transfer(dsi, &msg);
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}
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EXPORT_SYMBOL(mipi_dsi_turn_on_peripheral);
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/*
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* mipi_dsi_set_maximum_return_packet_size() - specify the maximum size of the
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* the payload in a long packet transmitted from the peripheral back to the
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@ -191,6 +191,8 @@ static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
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struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
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int mipi_dsi_attach(struct mipi_dsi_device *dsi);
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int mipi_dsi_detach(struct mipi_dsi_device *dsi);
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int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
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int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
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int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
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u16 value);
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