The writeb() is unavailable in mt8173. Because the mt8173 dsi module
doesn't support 8bit mode access.
Signed-off-by: Jitao Shi <jitao....@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c
b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 7e24d03cdccc..ac8e80e379f7 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -960,7 +960,9 @@ static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct
mipi_dsi_msg *msg)
}
for (i = 0; i < msg->tx_len; i++)
- writeb(tx_buf[i], dsi->regs + reg_cmdq_off + cmdq_off + i);
+ mtk_dsi_mask(dsi, (reg_cmdq_off + cmdq_off + i) & (~0x3U),
+ (0xffUL << (((i + cmdq_off) & 3U) * 8U)),
+ tx_buf[i] << (((i + cmdq_off) & 3U) * 8U));
mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);
mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);
--
2.21.0
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