linux-kernel - [PATCH v4 22/22] drm/sun4i: frontend: Add A20-specific device-tree compatible and quirks

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  5 Dec 2018 09:37:03 +0100
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        David Airlie <airlied@...ux.ie>, Chen-Yu Tsai <wens@...e.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <sean@...rly.run>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-sunxi@...glegroups.com, Daniel Vetter <daniel@...ll.ch>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Subject: [PATCH v4 22/22] drm/sun4i: frontend: Add A20-specific device-tree compatible and quirks

This adds the appropriate device-tree compatible and quirk data for
hooking frontend support for the A20. It supports the FIR coefficients
ready bit but not the access control bit. It also takes different phase
values than the A33 for these coefficients.

The compatible is already used in the A20 device-tree and already
documented in the device-tree bindings.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>
---
 drivers/gpu/drm/sun4i/sun4i_frontend.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index 4a215d5202e2..a1a4108f226e 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -682,6 +682,20 @@ static const struct dev_pm_ops sun4i_frontend_pm_ops = {
 	.runtime_suspend	= sun4i_frontend_runtime_suspend,
 };
 
+static const struct sun4i_frontend_data sun7i_a20_frontend = {
+	.ch_phase		= {
+		{
+			.horzphase = 0,
+			.vertphase = { 0, 0 },
+		},
+		{
+			.horzphase = 0xfc000,
+			.vertphase = { 0xfc000, 0xfc000 },
+		},
+	},
+	.has_coef_rdy		= true,
+};
+
 static const struct sun4i_frontend_data sun8i_a33_frontend = {
 	.ch_phase		= {
 		{
@@ -697,6 +711,10 @@ static const struct sun4i_frontend_data sun8i_a33_frontend = {
 };
 
 const struct of_device_id sun4i_frontend_of_table[] = {
+	{
+		.compatible = "allwinner,sun7i-a20-display-frontend",
+		.data = &sun7i_a20_frontend
+	},
 	{
 		.compatible = "allwinner,sun8i-a33-display-frontend",
 		.data = &sun8i_a33_frontend
-- 
2.19.2