[PATCH v3 1/3] drm/format-helper: Export drm_fb_xrgb8888_to_rgb565_line

From: Jocelyn Falempe <jfalempe@redhat.com>
To: dri-devel@lists.freedesktop.org, tzimmermann@suse.de,
	airlied@redhat.com, maarten.lankhorst@linux.intel.com,
	mripard@kernel.org, daniel@ffwll.ch, javierm@redhat.com,
	bluescreen_avenger@verizon.net
Cc: gpiccoli@igalia.com, Jocelyn Falempe <jfalempe@redhat.com>
Subject: [PATCH v3 1/3] drm/format-helper: Export drm_fb_xrgb8888_to_rgb565_line
Date: Wed, 27 Sep 2023 19:22:50 +0200	[thread overview]
Message-ID: <20230927172849.193996-2-jfalempe@redhat.com> (raw)
In-Reply-To: <20230927172849.193996-1-jfalempe@redhat.com>

drm_panic will need the low-level drm_fb_xxxx_line functions.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
---
 drivers/gpu/drm/drm_format_helper.c | 3 ++-
 include/drm/drm_format_helper.h     | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index f93a4efcee90..e2d3bc2707ea 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -320,7 +320,7 @@ void drm_fb_xrgb8888_to_rgb332(struct iosys_map *dst, const unsigned int *dst_pi
 }
 EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb332);
 
-static void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigned int pixels)
+void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigned int pixels)
 {
 	__le16 *dbuf16 = dbuf;
 	const __le32 *sbuf32 = sbuf;
@@ -336,6 +336,7 @@ static void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigne
 		dbuf16[x] = cpu_to_le16(val16);
 	}
 }
+EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb565_line);
 
 /* TODO: implement this helper as conversion to RGB565|BIG_ENDIAN */
 static void drm_fb_xrgb8888_to_rgb565_swab_line(void *dbuf, const void *sbuf,
diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h
index 291deb09475b..ca4ac4ff0801 100644
--- a/include/drm/drm_format_helper.h
+++ b/include/drm/drm_format_helper.h
@@ -67,4 +67,6 @@ size_t drm_fb_build_fourcc_list(struct drm_device *dev,
 				const u32 *native_fourccs, size_t native_nfourccs,
 				u32 *fourccs_out, size_t nfourccs_out);
 
+
+void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigned int pixels);
 #endif /* __LINUX_DRM_FORMAT_HELPER_H */
-- 
2.41.0

