From mboxrd@z Thu Jan 1 00:00:00 1970 From: jagan@amarulasolutions.com (Jagan Teki) Date: Thu, 27 Sep 2018 17:18:43 +0530 Subject: [PATCH 05/12] drm/sun4i: sun6i_mipi_dsi: Add DSI Generic short write 2 param transfer In-Reply-To: <20180927114850.24565-1-jagan@amarulasolutions.com> References: <20180927114850.24565-1-jagan@amarulasolutions.com> Message-ID: <20180927114850.24565-6-jagan@amarulasolutions.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Short transfer write support for DCS and Generic transfer types share similar way to process command sequence in DSI block so add generic write 2 param transfer type macro so-that the panels which are requesting similar transfer type may process properly. Also added error check for unsupporting transfer types this make debugging easy for new transfer types. Signed-off-by: Jagan Teki --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 156b371243c6..1c7e42015645 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -869,6 +869,7 @@ static ssize_t sun6i_dsi_transfer(struct mipi_dsi_host *host, SUN6I_DSI_CMD_CTL_TX_FLAG); switch (msg->type) { + case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM: case MIPI_DSI_DCS_SHORT_WRITE: case MIPI_DSI_DCS_SHORT_WRITE_PARAM: ret = sun6i_dsi_dcs_write_short(dsi, msg); @@ -885,6 +886,8 @@ static ssize_t sun6i_dsi_transfer(struct mipi_dsi_host *host, } default: + dev_err(dsi->dev, "unsupported message type 0x%02x\n", + msg->type); ret = -EINVAL; } -- 2.18.0.321.gffc6fa0e3