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cfcc8fcb11
This means that tinydrm_spi_bpw_supported() can be removed. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190719155916.62465-4-noralf@tronnes.org
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2016 Noralf Trønnes
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*/
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#ifndef __LINUX_TINYDRM_HELPERS_H
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#define __LINUX_TINYDRM_HELPERS_H
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struct backlight_device;
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struct drm_device;
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struct drm_display_mode;
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struct drm_framebuffer;
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struct drm_rect;
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struct drm_simple_display_pipe;
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struct drm_simple_display_pipe_funcs;
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struct spi_transfer;
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struct spi_message;
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struct spi_device;
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struct device;
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/**
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* tinydrm_machine_little_endian - Machine is little endian
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*
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* Returns:
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* true if *defined(__LITTLE_ENDIAN)*, false otherwise
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*/
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static inline bool tinydrm_machine_little_endian(void)
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{
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#if defined(__LITTLE_ENDIAN)
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return true;
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#else
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return false;
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#endif
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}
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int tinydrm_display_pipe_init(struct drm_device *drm,
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struct drm_simple_display_pipe *pipe,
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const struct drm_simple_display_pipe_funcs *funcs,
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int connector_type,
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const uint32_t *formats,
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unsigned int format_count,
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const struct drm_display_mode *mode,
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unsigned int rotation);
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size_t tinydrm_spi_max_transfer_size(struct spi_device *spi, size_t max_len);
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int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz,
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struct spi_transfer *header, u8 bpw, const void *buf,
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size_t len);
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void _tinydrm_dbg_spi_message(struct spi_device *spi, struct spi_message *m);
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#ifdef DEBUG
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/**
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* tinydrm_dbg_spi_message - Dump SPI message
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* @spi: SPI device
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* @m: SPI message
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*
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* Dumps info about the transfers in a SPI message including buffer content.
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* DEBUG has to be defined for this function to be enabled alongside setting
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* the DRM_UT_DRIVER bit of &drm_debug.
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*/
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static inline void tinydrm_dbg_spi_message(struct spi_device *spi,
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struct spi_message *m)
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{
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if (drm_debug & DRM_UT_DRIVER)
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_tinydrm_dbg_spi_message(spi, m);
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}
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#else
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static inline void tinydrm_dbg_spi_message(struct spi_device *spi,
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struct spi_message *m)
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{
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}
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#endif /* DEBUG */
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#endif /* __LINUX_TINYDRM_HELPERS_H */
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