From: Egor Vorontsov <sdoregor@sdore.me>
To: linux-kernel@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Jani Nikula <jani.nikula@linux.intel.com>,
Egor Vorontsov <sdoregor@sdore.me>
Subject: [PATCH v3 2/2] drm/edid: Refactor DisplayID timing block structs
Date: Fri, 14 Feb 2025 14:06:42 +0300 [thread overview]
Message-ID: <20250214110643.506740-2-sdoregor@sdore.me> (raw)
In-Reply-To: <20250214110643.506740-1-sdoregor@sdore.me>
Using le16 instead of u8[2].
Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Egor Vorontsov <sdoregor@sdore.me>
---
drivers/gpu/drm/drm_displayid_internal.h | 18 +++++++--------
drivers/gpu/drm/drm_edid.c | 28 ++++++++++++------------
2 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/drm_displayid_internal.h b/drivers/gpu/drm/drm_displayid_internal.h
index 84831ecfdb6e..957dd0619f5c 100644
--- a/drivers/gpu/drm/drm_displayid_internal.h
+++ b/drivers/gpu/drm/drm_displayid_internal.h
@@ -115,20 +115,20 @@ struct displayid_tiled_block {
struct displayid_detailed_timings_1 {
u8 pixel_clock[3];
u8 flags;
- u8 hactive[2];
- u8 hblank[2];
- u8 hsync[2];
- u8 hsw[2];
- u8 vactive[2];
- u8 vblank[2];
- u8 vsync[2];
- u8 vsw[2];
+ __le16 hactive;
+ __le16 hblank;
+ __le16 hsync;
+ __le16 hsw;
+ __le16 vactive;
+ __le16 vblank;
+ __le16 vsync;
+ __le16 vsw;
} __packed;
struct displayid_detailed_timing_block {
struct displayid_block base;
struct displayid_detailed_timings_1 timings[];
-};
+} __packed;
struct displayid_formula_timings_9 {
u8 flags;
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 03edf0e1598e..32807cefc819 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -6760,23 +6760,23 @@ static void update_display_info(struct drm_connector *connector,
}
static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
- struct displayid_detailed_timings_1 *timings,
+ const struct displayid_detailed_timings_1 *timings,
bool type_7)
{
struct drm_display_mode *mode;
- unsigned pixel_clock = (timings->pixel_clock[0] |
- (timings->pixel_clock[1] << 8) |
- (timings->pixel_clock[2] << 16)) + 1;
- unsigned hactive = (timings->hactive[0] | timings->hactive[1] << 8) + 1;
- unsigned hblank = (timings->hblank[0] | timings->hblank[1] << 8) + 1;
- unsigned hsync = (timings->hsync[0] | (timings->hsync[1] & 0x7f) << 8) + 1;
- unsigned hsync_width = (timings->hsw[0] | timings->hsw[1] << 8) + 1;
- unsigned vactive = (timings->vactive[0] | timings->vactive[1] << 8) + 1;
- unsigned vblank = (timings->vblank[0] | timings->vblank[1] << 8) + 1;
- unsigned vsync = (timings->vsync[0] | (timings->vsync[1] & 0x7f) << 8) + 1;
- unsigned vsync_width = (timings->vsw[0] | timings->vsw[1] << 8) + 1;
- bool hsync_positive = (timings->hsync[1] >> 7) & 0x1;
- bool vsync_positive = (timings->vsync[1] >> 7) & 0x1;
+ unsigned int pixel_clock = (timings->pixel_clock[0] |
+ (timings->pixel_clock[1] << 8) |
+ (timings->pixel_clock[2] << 16)) + 1;
+ unsigned int hactive = le16_to_cpu(timings->hactive) + 1;
+ unsigned int hblank = le16_to_cpu(timings->hblank) + 1;
+ unsigned int hsync = (le16_to_cpu(timings->hsync) & 0x7fff) + 1;
+ unsigned int hsync_width = le16_to_cpu(timings->hsw) + 1;
+ unsigned int vactive = le16_to_cpu(timings->vactive) + 1;
+ unsigned int vblank = le16_to_cpu(timings->vblank) + 1;
+ unsigned int vsync = (le16_to_cpu(timings->vsync) & 0x7fff) + 1;
+ unsigned int vsync_width = le16_to_cpu(timings->vsw) + 1;
+ bool hsync_positive = le16_to_cpu(timings->hsync) & (1 << 15);
+ bool vsync_positive = le16_to_cpu(timings->vsync) & (1 << 15);
mode = drm_mode_create(dev);
if (!mode)
--
2.48.0
next prev parent reply other threads:[~2025-02-14 15:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-14 11:06 [PATCH v3 1/2] drm/edid: Implement DisplayID Type IX & X timing blocks parsing Egor Vorontsov
2025-02-14 11:06 ` Egor Vorontsov [this message]
2025-02-14 16:05 ` [PATCH v3 2/2] drm/edid: Refactor DisplayID timing block structs Jani Nikula
2025-02-14 16:04 ` [PATCH v3 1/2] drm/edid: Implement DisplayID Type IX & X timing blocks parsing Jani Nikula
2025-02-14 16:07 ` Jani Nikula
2025-02-14 17:53 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [v3,1/2] " Patchwork
2025-02-14 18:09 ` ✗ i915.CI.BAT: failure " Patchwork
2025-04-14 19:00 ` Egor Vorontsov
2025-04-15 9:15 ` Jani Nikula
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