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drm/mediatek: replace writeb() with mtk_dsi_mask()

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The writeb() is unavailable in mt8173. Because the mt8173 dsi module
doesn't support 8bit mode access.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Jitao Shi 2019-09-19 14:58:00 +08:00 committed by CK Hu
parent bb6bc2982a
commit 89d0e3f882
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/mediatek/mtk_dsi.c
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@ -962,7 +962,9 @@ 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);