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authorThomas Gleixner <tglx@linutronix.de>2018-02-16 15:47:26 +0100
committerThomas Gleixner <tglx@linutronix.de>2018-02-16 15:47:26 +0100
commit6dee6ae9d62642e81def4d461d71f13a6496ab59 (patch)
tree6c75d416c427a59f190e197ad83fe59b7bebf656 /drivers/gpu/drm/tinydrm/mipi-dbi.c
parent1beaeacdc88b537703d04d5536235d0bbb36db93 (diff)
parent0b24a0bbe2147815d982d9335c41bb10c04f40bc (diff)
downloadtalos-op-linux-6dee6ae9d62642e81def4d461d71f13a6496ab59.tar.gz
talos-op-linux-6dee6ae9d62642e81def4d461d71f13a6496ab59.zip
Merge tag 'irqchip-4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip updates for 4.16-rc2 from Marc Zyngier - A MIPS GIC fix for spurious, masked interrupts - A fix for a subtle IPI bug in GICv3 - Do not probe GICv3 ITSs that are marked as disabled - Multi-MSI support for GICv2m - Various cleanups
Diffstat (limited to 'drivers/gpu/drm/tinydrm/mipi-dbi.c')
-rw-r--r--drivers/gpu/drm/tinydrm/mipi-dbi.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
index d43e992ab432..aa6b6ce56891 100644
--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -154,8 +154,18 @@ int mipi_dbi_command_buf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len)
}
EXPORT_SYMBOL(mipi_dbi_command_buf);
-static int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
- struct drm_clip_rect *clip, bool swap)
+/**
+ * mipi_dbi_buf_copy - Copy a framebuffer, transforming it if necessary
+ * @dst: The destination buffer
+ * @fb: The source framebuffer
+ * @clip: Clipping rectangle of the area to be copied
+ * @swap: When true, swap MSB/LSB of 16-bit values
+ *
+ * Returns:
+ * Zero on success, negative error code on failure.
+ */
+int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
+ struct drm_clip_rect *clip, bool swap)
{
struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
@@ -192,6 +202,7 @@ static int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
DMA_FROM_DEVICE);
return ret;
}
+EXPORT_SYMBOL(mipi_dbi_buf_copy);
static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
struct drm_file *file_priv,
@@ -444,18 +455,23 @@ EXPORT_SYMBOL(mipi_dbi_display_is_on);
#if IS_ENABLED(CONFIG_SPI)
-/*
+/**
+ * mipi_dbi_spi_cmd_max_speed - get the maximum SPI bus speed
+ * @spi: SPI device
+ * @len: The transfer buffer length.
+ *
* Many controllers have a max speed of 10MHz, but can be pushed way beyond
* that. Increase reliability by running pixel data at max speed and the rest
* at 10MHz, preventing transfer glitches from messing up the init settings.
*/
-static u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len)
+u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len)
{
if (len > 64)
return 0; /* use default */
return min_t(u32, 10000000, spi->max_speed_hz);
}
+EXPORT_SYMBOL(mipi_dbi_spi_cmd_max_speed);
/*
* MIPI DBI Type C Option 1
@@ -961,10 +977,6 @@ static const struct file_operations mipi_dbi_debugfs_command_fops = {
.write = mipi_dbi_debugfs_command_write,
};
-static const struct drm_info_list mipi_dbi_debugfs_list[] = {
- { "fb", drm_fb_cma_debugfs_show, 0 },
-};
-
/**
* mipi_dbi_debugfs_init - Create debugfs entries
* @minor: DRM minor
@@ -987,9 +999,7 @@ int mipi_dbi_debugfs_init(struct drm_minor *minor)
debugfs_create_file("command", mode, minor->debugfs_root, mipi,
&mipi_dbi_debugfs_command_fops);
- return drm_debugfs_create_files(mipi_dbi_debugfs_list,
- ARRAY_SIZE(mipi_dbi_debugfs_list),
- minor->debugfs_root, minor);
+ return 0;
}
EXPORT_SYMBOL(mipi_dbi_debugfs_init);
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