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Commit aacf58a6 authored by Xiaowen Wu's avatar Xiaowen Wu
Browse files

drm/msm/dp: Add P/N swap support for dp phy 



Add P/N swap support for DP PHY

CRs-Fixed: 2378453
Change-Id: Ibc8be5aba9b658c52985dcd147cb2acfec9a1cf0
Signed-off-by: default avatarXiaowen Wu <wxiaowen@codeaurora.org>
parent 65205701

Documentation/devicetree/bindings/drm/msm/sde-dp.txt

+1 −0
Original line number Diff line number Diff line
@@ -100,6 +100,7 @@ Optional properties: 
- compatible:			Must be "qcom,msm-ext-disp"

- qcom,dp-low-power-hw-hpd:	Low power hardware HPD feature enable control node

- qcom,phy-version:		Phy version

- qcom,pn-swap-lane-map:	P/N swap configuration of each lane

- pinctrl-names:		List of names to assign mdss pin states defined in pinctrl device node

				Refer to pinctrl-bindings.txt

- pinctrl-<0..n>:		Lists phandles each pointing to the pin configuration node within a pin

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

+26 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -830,6 +830,30 @@ static void dp_catalog_ctrl_lane_mapping(struct dp_catalog_ctrl *ctrl, 
			0xe4);

}



static void dp_catalog_ctrl_lane_pnswap(struct dp_catalog_ctrl *ctrl,

						u8 ln_pnswap)

{

	struct dp_catalog_private *catalog;

	struct dp_io_data *io_data;

	u32 cfg0, cfg1;



	catalog = dp_catalog_get_priv(ctrl);



	cfg0 = 0x0a;

	cfg1 = 0x0a;



	cfg0 |= ((ln_pnswap >> 0) & 0x1) << 0;

	cfg0 |= ((ln_pnswap >> 1) & 0x1) << 2;

	cfg1 |= ((ln_pnswap >> 2) & 0x1) << 0;

	cfg1 |= ((ln_pnswap >> 3) & 0x1) << 2;



	io_data = catalog->io.dp_ln_tx0;

	dp_write(catalog->exe_mode, io_data, TXn_TX_POL_INV, cfg0);



	io_data = catalog->io.dp_ln_tx1;

	dp_write(catalog->exe_mode, io_data, TXn_TX_POL_INV, cfg1);

}



static void dp_catalog_ctrl_mainlink_ctrl(struct dp_catalog_ctrl *ctrl,

						bool enable)

{
@@ -2441,6 +2465,7 @@ struct dp_catalog *dp_catalog_get(struct device *dev, struct dp_parser *parser) 
		.state_ctrl     = dp_catalog_ctrl_state_ctrl,

		.config_ctrl    = dp_catalog_ctrl_config_ctrl,

		.lane_mapping   = dp_catalog_ctrl_lane_mapping,

		.lane_pnswap    = dp_catalog_ctrl_lane_pnswap,

		.mainlink_ctrl  = dp_catalog_ctrl_mainlink_ctrl,

		.set_pattern    = dp_catalog_ctrl_set_pattern,

		.reset          = dp_catalog_ctrl_reset,

drivers/gpu/drm/msm/dp/dp_catalog.h

+2 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -102,6 +102,7 @@ struct dp_catalog_ctrl { 
	void (*config_ctrl)(struct dp_catalog_ctrl *ctrl, u8 ln_cnt);

	void (*lane_mapping)(struct dp_catalog_ctrl *ctrl, bool flipped,

				char *lane_map);

	void (*lane_pnswap)(struct dp_catalog_ctrl *ctrl, u8 ln_pnswap);

	void (*mainlink_ctrl)(struct dp_catalog_ctrl *ctrl, bool enable);

	void (*set_pattern)(struct dp_catalog_ctrl *ctrl, u32 pattern);

	void (*reset)(struct dp_catalog_ctrl *ctrl);

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

+26 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -295,6 +295,30 @@ static void dp_catalog_ctrl_update_vx_px_v420(struct dp_catalog_ctrl *ctrl, 
	}

}



static void dp_catalog_ctrl_lane_pnswap_v420(struct dp_catalog_ctrl *ctrl,

						u8 ln_pnswap)

{

	struct dp_catalog_private_v420 *catalog;

	struct dp_io_data *io_data;

	u32 cfg0, cfg1;



	catalog = dp_catalog_get_priv_v420(ctrl);



	cfg0 = 0x0a;

	cfg1 = 0x0a;



	cfg0 |= ((ln_pnswap >> 0) & 0x1) << 0;

	cfg0 |= ((ln_pnswap >> 1) & 0x1) << 2;

	cfg1 |= ((ln_pnswap >> 2) & 0x1) << 0;

	cfg1 |= ((ln_pnswap >> 3) & 0x1) << 2;



	io_data = catalog->io->dp_ln_tx0;

	dp_write(catalog->exe_mode, io_data, TXn_TX_POL_INV_V420, cfg0);



	io_data = catalog->io->dp_ln_tx1;

	dp_write(catalog->exe_mode, io_data, TXn_TX_POL_INV_V420, cfg1);

}



static void dp_catalog_put_v420(struct dp_catalog *catalog)

{

	struct dp_catalog_private_v420 *catalog_priv;
@@ -345,6 +369,7 @@ int dp_catalog_get_v420(struct device *dev, struct dp_catalog *catalog, 
	catalog->panel.config_msa  = dp_catalog_panel_config_msa_v420;

	catalog->ctrl.phy_lane_cfg = dp_catalog_ctrl_phy_lane_cfg_v420;

	catalog->ctrl.update_vx_px = dp_catalog_ctrl_update_vx_px_v420;

	catalog->ctrl.lane_pnswap = dp_catalog_ctrl_lane_pnswap_v420;



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

	dp_catalog_set_exe_mode_v420(catalog, "hw");

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

+3 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -170,6 +170,8 @@ static void dp_ctrl_configure_source_link_params(struct dp_ctrl_private *ctrl, 
	if (enable) {

		ctrl->catalog->lane_mapping(ctrl->catalog, ctrl->orientation,

						ctrl->parser->l_map);

		ctrl->catalog->lane_pnswap(ctrl->catalog,

						ctrl->parser->l_pnswap);

		ctrl->catalog->mst_config(ctrl->catalog, ctrl->mst_mode);

		ctrl->catalog->config_ctrl(ctrl->catalog,

				ctrl->link->link_params.lane_count);