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

Commit 68d81a40 authored by Tatenda Chipeperekwa's avatar Tatenda Chipeperekwa
Browse files

drm/msm/dp: update the AUX setup sequence for DP PHY on SDM855 



Update the AUX setup sequence for DP PHY on SDM855 in order to
enable AUX transactions once the cable is plugged in.

Change-Id: I380691056e2188f6b35d7bf430eb97e6852f762b
Signed-off-by: default avatarTatenda Chipeperekwa <tatendac@codeaurora.org>
parent 3513a01c

drivers/gpu/drm/msm/dp/dp_catalog_v420.c

+9 −3
Original line number Diff line number Diff line
@@ -108,13 +108,15 @@ static void dp_catalog_aux_setup_v420(struct dp_catalog_aux *aux, 
	catalog = dp_catalog_get_priv_v420(aux);



	io_data = catalog->io->dp_phy;

	dp_write(catalog, io_data, DP_PHY_PD_CTL, 0x7D);

	dp_write(catalog, io_data, DP_PHY_PD_CTL, 0x65);

	wmb(); /* make sure PD programming happened */



	/* Turn on BIAS current for PHY/PLL */

	dp_write(catalog, io_data,

		QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x3d);

	io_data = catalog->io->dp_pll;

	dp_write(catalog, io_data, QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x17);

	wmb(); /* make sure PD programming happened */



	io_data = catalog->io->dp_phy;

	/* DP AUX CFG register programming */

	for (i = 0; i < PHY_AUX_CFG_MAX; i++) {

		pr_debug("%s: offset=0x%08x, value=0x%08x\n",
@@ -123,6 +125,7 @@ static void dp_catalog_aux_setup_v420(struct dp_catalog_aux *aux, 
		dp_write(catalog, io_data, cfg[i].offset,

			cfg[i].lut[cfg[i].current_index]);

	}

	wmb(); /* make sure DP AUX CFG programming happened */



	dp_write(catalog, io_data, DP_PHY_AUX_INTERRUPT_MASK_V420, 0x1F);

}
@@ -327,5 +330,8 @@ int dp_catalog_get_v420(struct device *dev, struct dp_catalog *catalog, 
	catalog->ctrl.phy_lane_cfg = dp_catalog_ctrl_phy_lane_cfg_v420;

	catalog->ctrl.update_vx_px = dp_catalog_ctrl_update_vx_px_v420;



	/* Set the default execution mode to hardware mode */

	dp_catalog_set_exe_mode_v420(catalog, "hw");



	return 0;

}