From 3d46a3007cd8f73bae502bf5c171977b91d7aacc Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Wed, 19 Jun 2019 12:17:51 +0200 Subject: drm/modes: Parse overscan properties MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Properly configuring the overscan properties might be needed for the initial setup of the framebuffer for display that still have overscan. Let's allow for more properties on the kernel command line to setup each margin. Reviewed-by: Noralf Trønnes Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/e481f1628e3768ca49226ec2115cfa4dfcbd5e4c.1560783090.git-series.maxime.ripard@bootlin.com --- drivers/gpu/drm/drm_modes.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'drivers/gpu/drm/drm_modes.c') diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index dc6d11292685..57e6408288c8 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -1609,6 +1609,50 @@ static int drm_mode_parse_cmdline_options(char *str, size_t len, } else if (!strncmp(option, "reflect_y", delim - option)) { rotation |= DRM_MODE_REFLECT_Y; sep = delim; + } else if (!strncmp(option, "margin_right", delim - option)) { + const char *value = delim + 1; + unsigned int margin; + + margin = simple_strtol(value, &sep, 10); + + /* Make sure we have parsed something */ + if (sep == value) + return -EINVAL; + + mode->tv_margins.right = margin; + } else if (!strncmp(option, "margin_left", delim - option)) { + const char *value = delim + 1; + unsigned int margin; + + margin = simple_strtol(value, &sep, 10); + + /* Make sure we have parsed something */ + if (sep == value) + return -EINVAL; + + mode->tv_margins.left = margin; + } else if (!strncmp(option, "margin_top", delim - option)) { + const char *value = delim + 1; + unsigned int margin; + + margin = simple_strtol(value, &sep, 10); + + /* Make sure we have parsed something */ + if (sep == value) + return -EINVAL; + + mode->tv_margins.top = margin; + } else if (!strncmp(option, "margin_bottom", delim - option)) { + const char *value = delim + 1; + unsigned int margin; + + margin = simple_strtol(value, &sep, 10); + + /* Make sure we have parsed something */ + if (sep == value) + return -EINVAL; + + mode->tv_margins.bottom = margin; } else { return -EINVAL; } -- cgit v1.2.3