^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef __DRM_OF_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define __DRM_OF_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/of_graph.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_DRM_PANEL_BRIDGE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <drm/drm_bridge.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) struct component_master_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct component_match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct drm_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct drm_encoder;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct drm_panel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct drm_bridge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct device_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * enum drm_lvds_dual_link_pixels - Pixel order of an LVDS dual-link connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * @DRM_LVDS_DUAL_LINK_EVEN_ODD_PIXELS: Even pixels are expected to be generated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * from the first port, odd pixels from the second port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * @DRM_LVDS_DUAL_LINK_ODD_EVEN_PIXELS: Odd pixels are expected to be generated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * from the first port, even pixels from the second port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) enum drm_lvds_dual_link_pixels {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) DRM_LVDS_DUAL_LINK_EVEN_ODD_PIXELS = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) DRM_LVDS_DUAL_LINK_ODD_EVEN_PIXELS = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) uint32_t drm_of_crtc_port_mask(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct device_node *port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct device_node *port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) void drm_of_component_match_add(struct device *master,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct component_match **matchptr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int (*compare)(struct device *, void *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct device_node *node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int drm_of_component_probe(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) int (*compare_of)(struct device *, void *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) const struct component_master_ops *m_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) int drm_of_encoder_active_endpoint(struct device_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct drm_encoder *encoder,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct of_endpoint *endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int drm_of_find_panel_or_bridge(const struct device_node *np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) int port, int endpoint,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct drm_panel **panel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct drm_bridge **bridge);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int drm_of_lvds_get_dual_link_pixel_order(const struct device_node *port1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) const struct device_node *port2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static inline uint32_t drm_of_crtc_port_mask(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct device_node *port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct device_node *port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) drm_of_component_match_add(struct device *master,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct component_match **matchptr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int (*compare)(struct device *, void *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct device_node *node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) drm_of_component_probe(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) int (*compare_of)(struct device *, void *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) const struct component_master_ops *m_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static inline int drm_of_encoder_active_endpoint(struct device_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct drm_encoder *encoder,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct of_endpoint *endpoint)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static inline int drm_of_find_panel_or_bridge(const struct device_node *np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int port, int endpoint,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct drm_panel **panel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct drm_bridge **bridge)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) drm_of_lvds_get_dual_link_pixel_order(const struct device_node *port1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) const struct device_node *port2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * drm_of_panel_bridge_remove - remove panel bridge
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * @np: device tree node containing panel bridge output ports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * Remove the panel bridge of a given DT node's port and endpoint number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * Returns zero if successful, or one of the standard error codes if it fails.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) static inline int drm_of_panel_bridge_remove(const struct device_node *np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) int port, int endpoint)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_DRM_PANEL_BRIDGE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct drm_bridge *bridge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct device_node *remote;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) remote = of_graph_get_remote_node(np, port, endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if (!remote)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) bridge = of_drm_find_bridge(remote);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) drm_panel_bridge_remove(bridge);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct drm_encoder *encoder)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct of_endpoint endpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int ret = drm_of_encoder_active_endpoint(node, encoder,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) &endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return ret ?: endpoint.id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) static inline int drm_of_encoder_active_port_id(struct device_node *node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) struct drm_encoder *encoder)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct of_endpoint endpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) int ret = drm_of_encoder_active_endpoint(node, encoder,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) &endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return ret ?: endpoint.port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #endif /* __DRM_OF_H__ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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