| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20250913-st7571-reset-v1-1-ae5f58acdf8d@gmail.com> Date: Sat, 13 Sep 2025 08:09:40 +0200 From: Marcus Folkesson <marcus.folkesson@...il.com> To: Javier Martinez Canillas <javierm@...hat.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch> Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, Marcus Folkesson <marcus.folkesson@...il.com> Subject: [PATCH] drm/sitronix/st7571-i2c: reset position before clearing display We cannot know where the write pointer is, always reset position to (0,0) before clearing display. Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com> --- drivers/gpu/drm/sitronix/st7571-i2c.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/sitronix/st7571-i2c.c b/drivers/gpu/drm/sitronix/st7571-i2c.c index a6c4a6738dedf5881328414e9d8810d3af2a6fe4..32b91d65b768b26caa7dcef42a00d36f236fbc32 100644 --- a/drivers/gpu/drm/sitronix/st7571-i2c.c +++ b/drivers/gpu/drm/sitronix/st7571-i2c.c @@ -263,6 +263,7 @@ static int st7571_fb_clear_screen(struct st7571_device *st7571) u32 npixels = st7571->ncols * round_up(st7571->nlines, ST7571_PAGE_HEIGHT) * st7571->bpp; char pixelvalue = 0x00; + st7571_set_position(st7571, 0, 0); for (int i = 0; i < npixels; i++) regmap_bulk_write(st7571->regmap, ST7571_DATA_MODE, &pixelvalue, 1); --- base-commit: 91494dee1091a14d91da6bcb39e12a907765c793 change-id: 20250911-st7571-reset-785838285415 Best regards, -- Marcus Folkesson <marcus.folkesson@...il.com>
Powered by blists - more mailing lists