Commit 2ccf6e25 authored by Shuijing Li's avatar Shuijing Li Committed by Chun-Kuang Hu
Browse files

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



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: default avatarShuijing Li <shuijing.li@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino 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: default avatarChun-Kuang Hu <chunkuang.hu@kernel.org>
parent 81d707f3

drivers/gpu/drm/mediatek/mtk_dsi.c

+6 −0
Original line number Diff line number Diff line
@@ -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,