Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4ea598aa authored by Xipeng Gu's avatar Xipeng Gu
Browse files

fbdev: msm: fix 2A/2B register programing failed issue 



Set page register 0xFE=0x00 to ensure registers 0x2A
and 0x2B take effect.

Change-Id: I16f89da87b9438a704eb1964be40de2b41023962
Signed-off-by: default avatarXipeng Gu <guxipeng@codeaurora.org>
parent 3364ad12

drivers/video/fbdev/msm/mdss_dsi_panel.c

+7 −3
Original line number Diff line number Diff line
@@ -572,11 +572,13 @@ static int mdss_dsi_roi_merge(struct mdss_dsi_ctrl_pdata *ctrl, 
	return ans;

}



static char pageset[] = {0xfe, 0x00};			/* DTYPE_DCS_WRITE1 */

static char caset[] = {0x2a, 0x00, 0x00, 0x03, 0x00};	/* DTYPE_DCS_LWRITE */

static char paset[] = {0x2b, 0x00, 0x00, 0x05, 0x00};	/* DTYPE_DCS_LWRITE */



/* pack into one frame before sent */

static struct dsi_cmd_desc set_col_page_addr_cmd[] = {

	{{DTYPE_DCS_WRITE1, 1, 0, 0, 0, sizeof(pageset)}, pageset},

	{{DTYPE_DCS_LWRITE, 0, 0, 0, 1, sizeof(caset)}, caset},	/* packed */

	{{DTYPE_DCS_LWRITE, 1, 0, 0, 1, sizeof(paset)}, paset},

};
@@ -586,20 +588,22 @@ static void mdss_dsi_send_col_page_addr(struct mdss_dsi_ctrl_pdata *ctrl, 
{

	struct dcs_cmd_req cmdreq;



	set_col_page_addr_cmd[0].payload = pageset;



	caset[1] = (((roi->x) & 0xFF00) >> 8);

	caset[2] = (((roi->x) & 0xFF));

	caset[3] = (((roi->x - 1 + roi->w) & 0xFF00) >> 8);

	caset[4] = (((roi->x - 1 + roi->w) & 0xFF));

	set_col_page_addr_cmd[0].payload = caset;

	set_col_page_addr_cmd[1].payload = caset;



	paset[1] = (((roi->y) & 0xFF00) >> 8);

	paset[2] = (((roi->y) & 0xFF));

	paset[3] = (((roi->y - 1 + roi->h) & 0xFF00) >> 8);

	paset[4] = (((roi->y - 1 + roi->h) & 0xFF));

	set_col_page_addr_cmd[1].payload = paset;

	set_col_page_addr_cmd[2].payload = paset;



	memset(&cmdreq, 0, sizeof(cmdreq));

	cmdreq.cmds_cnt = 2;

	cmdreq.cmds_cnt = 3;

	cmdreq.flags = CMD_REQ_COMMIT;

	if (unicast)

		cmdreq.flags |= CMD_REQ_UNICAST;