From: <xinlei.lee@mediatek.com>
To: <chunkuang.hu@kernel.org>, <p.zabel@pengutronix.de>,
<airlied@linux.ie>, <daniel@ffwll.ch>, <robh+dt@kernel.org>,
<krzysztof.kozlowski+dt@linaro.org>, <matthias.bgg@gmail.com>,
<jitao.shi@mediatek.com>, <shuijing.li@mediatek.com>
Cc: devicetree@vger.kernel.org, Xinlei Lee <xinlei.lee@mediatek.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Project_Global_Chrome_Upstream_Group@mediatek.com,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] drm/mediatek: dsi: Add dsi cmdq_ctl to send panel initial code
Date: Thu, 13 Apr 2023 14:09:22 +0800 [thread overview]
Message-ID: <1681366162-4949-4-git-send-email-xinlei.lee@mediatek.com> (raw)
In-Reply-To: <1681366162-4949-1-git-send-email-xinlei.lee@mediatek.com>
From: Xinlei Lee <xinlei.lee@mediatek.com>
For mt8188, add dsi cmdq reg control to send long packets to panel initialization.
Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com>
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 500a3054282d..cbfe5df4647c 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -86,6 +86,7 @@
#define DSI_CMDQ_SIZE 0x60
#define CMDQ_SIZE 0x3f
+#define CMDQ_SIZE_SEL BIT(15)
#define DSI_HSTX_CKL_WC 0x64
@@ -178,6 +179,7 @@ struct mtk_dsi_driver_data {
const u32 reg_cmdq_off;
bool has_shadow_ctl;
bool has_size_ctl;
+ bool cmdq_long_packet_ctl;
};
struct mtk_dsi {
@@ -965,6 +967,11 @@ static u32 mtk_dsi_recv_cnt(u8 type, u8 *read_data)
return 0;
}
+static void mtk_dsi_cmd_packet_ctl(struct mtk_dsi *dsi)
+{
+ mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE_SEL, CMDQ_SIZE_SEL);
+}
+
static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
{
const char *tx_buf = msg->tx_buf;
@@ -996,6 +1003,8 @@ static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);
mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);
+ if (dsi->driver_data->cmdq_long_packet_ctl)
+ mtk_dsi_cmd_packet_ctl(dsi);
}
static ssize_t mtk_dsi_host_send_cmd(struct mtk_dsi *dsi,
@@ -1200,18 +1209,21 @@ static const struct mtk_dsi_driver_data mt8183_dsi_driver_data = {
.reg_cmdq_off = 0x200,
.has_shadow_ctl = true,
.has_size_ctl = true,
+ .cmdq_long_packet_ctl = false,
};
static const struct mtk_dsi_driver_data mt8186_dsi_driver_data = {
.reg_cmdq_off = 0xd00,
.has_shadow_ctl = true,
.has_size_ctl = true,
+ .cmdq_long_packet_ctl = false,
};
static const struct mtk_dsi_driver_data mt8188_dsi_driver_data = {
.reg_cmdq_off = 0xd00,
.has_shadow_ctl = true,
.has_size_ctl = true,
+ .cmdq_long_packet_ctl = true,
};
static const struct of_device_id mtk_dsi_of_match[] = {
--
2.18.0
next prev parent reply other threads:[~2023-04-13 6:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-13 6:09 [PATCH 0/3] Add mt8188 compatiable for DSI cmd packet control xinlei.lee
2023-04-13 6:09 ` [PATCH 1/3] dt-bindings: display: mediatek: dsi: Add compatible for MediaTek MT8188 xinlei.lee
2023-04-13 7:55 ` Krzysztof Kozlowski
2023-04-13 9:02 ` Matthias Brugger
2023-06-12 15:19 ` Chun-Kuang Hu
2023-04-13 6:09 ` [PATCH 2/3] drm/mediatek: Add mt8188 dsi compatible to mtk_dsi.c xinlei.lee
2023-04-13 9:02 ` Matthias Brugger
2023-06-12 15:18 ` Chun-Kuang Hu
2023-04-13 6:09 ` xinlei.lee [this message]
2023-04-13 7:27 ` [PATCH 3/3] drm/mediatek: dsi: Add dsi cmdq_ctl to send panel initial code Rex-BC Chen (陳柏辰)
2023-06-16 6:24 ` Shuijing Li (李水静)
2023-04-13 9:09 ` Matthias Brugger
2023-06-16 6:50 ` Shuijing Li (李水静)
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