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drm/mediatek: dsi: Add dsi cmdq_ctl to send panel initial code

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For mt8188, add dsi cmdq reg control to send long packets to panel
initialization. MT8188 hardware has been changed to automatically
set the cmdq_size value by default when sending long packets.
In this patch, the cmdq_size value is set manually instead.
Remain consistent with previous IC.

Signed-off-by: Shuijing Li <shuijing.li@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20230911120800.17369-3-shuijing.li@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Shuijing Li
2023-09-11 20:07:59 +08:00
committed by Chun-Kuang Hu
parent 81d707f32e
commit 2ccf6e2580
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/mediatek/mtk_dsi.c
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@@ -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 {
@@ -996,6 +998,10 @@ 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) {
/* Disable setting cmdq_size automatically for long packets */
mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE_SEL, CMDQ_SIZE_SEL);
}
}
static ssize_t mtk_dsi_host_send_cmd(struct mtk_dsi *dsi,