For mt8188, add dsi cmdq reg control to send long packets to panel initialization. Signed-off-by: Shuijing Li <shuijing.li@xxxxxxxxxxxx> Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx> --- Changes in v2: use mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE_SEL, CMDQ_SIZE_SEL); directly, per suggestion from the previous thread: https://lore.kernel.org/lkml/015f4c60-ed77-9e1f-8a6b-cda6e4f6ac93@xxxxxxxxx/ --- drivers/gpu/drm/mediatek/mtk_dsi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 500a3054282d..8b43d9f48178 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 { @@ -996,6 +998,8 @@ 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_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE_SEL, CMDQ_SIZE_SEL); } static ssize_t mtk_dsi_host_send_cmd(struct mtk_dsi *dsi, @@ -1200,18 +1204,21 @@ 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[] = { -- 2.40.1
