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Commit a04a5260 authored by Padmanabhan Komanduru's avatar Padmanabhan Komanduru Committed by Nirmal Abraham
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msm: mdss: update the power down sequence for DSI 12nm PHY 



Update the DSI 12nm PHY power down sequence as per the latest
recommendation of h/w team to reduce the sleep current by
asserting the async reset.

Change-Id: Ia19068d692fd938d3817beca5016485f45ac8022
Signed-off-by: default avatarPadmanabhan Komanduru <pkomandu@codeaurora.org>
parent 484764cb

drivers/video/fbdev/msm/mdss_dsi.h

+1 −0
Original line number Diff line number Diff line
@@ -714,6 +714,7 @@ void mdss_dsi_set_reg(struct mdss_dsi_ctrl_pdata *ctrl, int off, 
	u32 mask, u32 val);

int mdss_dsi_phy_pll_reset_status(struct mdss_dsi_ctrl_pdata *ctrl);

int mdss_dsi_check_panel_status(struct mdss_dsi_ctrl_pdata *ctrl, void *arg);

void mdss_dsi_ctrl_phy_reset(struct mdss_dsi_ctrl_pdata *ctrl);



void mdss_dsi_debug_bus_init(struct mdss_dsi_data *sdata);

int mdss_dsi_get_dt_vreg_data(struct device *dev,

drivers/video/fbdev/msm/mdss_dsi_phy_12nm.c

+2 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/* Copyright (c) 2018, 2020, The Linux Foundation. All rights reserved. */

/* Copyright (c) 2018, 2020-2021, The Linux Foundation. All rights reserved. */



#include <linux/iopoll.h>

#include "mdss_dsi_phy.h"
@@ -94,6 +94,7 @@ int mdss_dsi_12nm_phy_shutdown(struct mdss_dsi_ctrl_pdata *ctrl) 
{

	DSI_PHY_W32(ctrl->phy_io.base, SYS_CTRL, BIT(0) | BIT(3));

	wmb(); /* make sure DSI PHY is disabled */

	mdss_dsi_ctrl_phy_reset(ctrl);

	return 0;

}

drivers/video/fbdev/msm/msm_mdss_io_8974.c

+1 −1
Original line number Diff line number Diff line
@@ -433,7 +433,7 @@ void mdss_dsi_dfps_config_8996(struct mdss_dsi_ctrl_pdata *ctrl) 
	wmb(); /* make sure phy timings are updated*/

}



static void mdss_dsi_ctrl_phy_reset(struct mdss_dsi_ctrl_pdata *ctrl)

void mdss_dsi_ctrl_phy_reset(struct mdss_dsi_ctrl_pdata *ctrl)

{

	/* start phy sw reset */

	MIPI_OUTP(ctrl->ctrl_base + 0x12c, 0x0001);