Hi Linus,
On 18/10/18 13:27, Linus Walleij wrote:
Having failed any attempts at a more generic solution,
I fall back to the very specific solution: define a simple
panel for the ARM RTSMv8 emulated platform.
From the bits of the discussion that I've caught it does seem like this
framebuffer-grovelling business might turn out to be fairly unique to
RTSM/Fast Models, so I guess it's a reasonable compromise.
I am doing this so we can convert all old users from the
previous fbdev driver to the PL111 DRM driver.
This works fine as far as I can test, provided the
device tree for RTSMv8 is augmented accordingly.
Cc: Sudeep Holla <sudeep.holla@xxxxxxx>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Liviu Dudau <liviu.dudau@xxxxxxx>
Cc: Mali DP Maintainers <malidp@xxxxxxxxxxxx>
Cc: Robin Murphy <robin.murphy@xxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-simple.c | 30 ++++++++++++++++++++++++++++
Nit: binding doc?
1 file changed, 30 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 97964f7f2ace..b36fb1db16fb 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -2323,6 +2323,33 @@ static const struct panel_desc winstar_wf35ltiacd = {
.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
};
+static const struct drm_display_mode arm_rtsmv8_mode[] = {
+ {
+ .clock = 65000,
+ .hdisplay = 1024,
+ .hsync_start = 1024 + 24,
+ .hsync_end = 1024 + 24 + 136,
+ .htotal = 1024 + 24 + 136 + 160,
+ .vdisplay = 768,
+ .vsync_start = 768 + 3,
+ .vsync_end = 768 + 3 + 6,
+ .vtotal = 768 + 3 + 6 + 29,
+ .vrefresh = 60,
+ .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
+ },
+};
+
+static const struct panel_desc arm_rtsmv8 = {
+ .modes = arm_rtsmv8_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 400,
+ .height = 300,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+};
+
static const struct of_device_id platform_of_match[] = {
{
.compatible = "ampire,am-480272h3tmqw-t01h",
@@ -2330,6 +2357,9 @@ static const struct of_device_id platform_of_match[] = {
}, {
.compatible = "ampire,am800480r3tmqwa1h",
.data = &ire_am800480r3tmqwa1h,
+ }, {
+ .compatible = "arm,rtsmv8-display",
Nit: "arm,rtsm-display" would probably be a more accurate choice, since
the implementation dates back to long before v8 of anything relevant ;)
Robin.
+ .data = &arm_rtsmv8,
}, {
.compatible = "auo,b101aw03",
.data = &auo_b101aw03,
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