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

Commit 27f91773 authored by Padmanabhan Komanduru's avatar Padmanabhan Komanduru Committed by Matt Wagantall
Browse files

msm: mdss: enable DSI timing register double buffering for 8916/8939 



On 8916/8939, the DSI timing registers support double buffering.
Enable the double buffering support and flush DSI registers once
the timing parameters are configured.

Change-Id: I61c0a84f0fc015541fc8e0197e1b9997ebb123aa
Signed-off-by: default avatarPadmanabhan Komanduru <pkomandu@codeaurora.org>
parent 9ec1fb31

drivers/video/msm/mdss/mdss_dsi_host.c

+8 −2
Original line number Diff line number Diff line
@@ -632,7 +632,7 @@ static void mdss_dsi_mode_setup(struct mdss_panel_data *pdata) 
	u32 hbp, hfp, vbp, vfp, hspw, vspw, width, height;

	u32 ystride, bpp, data, dst_bpp;

	u32 dummy_xres = 0, dummy_yres = 0;

	u32 hsync_period, vsync_period;

	u32 hsync_period, vsync_period, ctrl_rev;



	ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,

				panel_data);
@@ -670,6 +670,10 @@ static void mdss_dsi_mode_setup(struct mdss_panel_data *pdata) 


	mipi = &pdata->panel_info.mipi;

	if (pdata->panel_info.type == MIPI_VIDEO_PANEL) {

		ctrl_rev = MIPI_INP(ctrl_pdata->ctrl_base);

		/* Enable DSI TIMING register double buffering for 8916/8939 */

		if (ctrl_rev == MDSS_DSI_HW_REV_103_1)

			MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x1e8, 0x1);

		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x24,

			((hspw + hbp + width + dummy_xres) << 16 |

			(hspw + hbp)));
@@ -683,7 +687,9 @@ static void mdss_dsi_mode_setup(struct mdss_panel_data *pdata) 
		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x30, (hspw << 16));

		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x34, 0);

		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x38, (vspw << 16));



		/* Flush DSI TIMING registers for 8916/8939 */

		if (ctrl_rev == MDSS_DSI_HW_REV_103_1)

			MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x1e4, 0x1);

	} else {		/* command mode */

		if (mipi->dst_format == DSI_CMD_DST_FORMAT_RGB888)

			bpp = 3;