From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 89 +++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 drivers/gpu/drm/msm/dsi/phy/dsi_phy.h (limited to 'drivers/gpu/drm/msm/dsi/phy/dsi_phy.h') diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h new file mode 100644 index 000000000..0456b2532 --- /dev/null +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2015, 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 + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __DSI_PHY_H__ +#define __DSI_PHY_H__ + +#include + +#include "dsi.h" + +#define dsi_phy_read(offset) msm_readl((offset)) +#define dsi_phy_write(offset, data) msm_writel((data), (offset)) + +struct msm_dsi_phy_ops { + int (*enable)(struct msm_dsi_phy *phy, int src_pll_id, + const unsigned long bit_rate, const unsigned long esc_rate); + void (*disable)(struct msm_dsi_phy *phy); +}; + +struct msm_dsi_phy_cfg { + enum msm_dsi_phy_type type; + struct dsi_reg_config reg_cfg; + struct msm_dsi_phy_ops ops; + + /* + * Each cell {phy_id, pll_id} of the truth table indicates + * if the source PLL selection bit should be set for each PHY. + * Fill default H/W values in illegal cells, eg. cell {0, 1}. + */ + bool src_pll_truthtable[DSI_MAX][DSI_MAX]; +}; + +extern const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs; +extern const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs; +extern const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs; + +struct msm_dsi_dphy_timing { + u32 clk_pre; + u32 clk_post; + u32 clk_zero; + u32 clk_trail; + u32 clk_prepare; + u32 hs_exit; + u32 hs_zero; + u32 hs_prepare; + u32 hs_trail; + u32 hs_rqst; + u32 ta_go; + u32 ta_sure; + u32 ta_get; +}; + +struct msm_dsi_phy { + struct platform_device *pdev; + void __iomem *base; + void __iomem *reg_base; + int id; + + struct clk *ahb_clk; + struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX]; + + struct msm_dsi_dphy_timing timing; + const struct msm_dsi_phy_cfg *cfg; + + bool regulator_ldo_mode; + + struct msm_dsi_pll *pll; +}; + +/* + * PHY internal functions + */ +int msm_dsi_dphy_timing_calc(struct msm_dsi_dphy_timing *timing, + const unsigned long bit_rate, const unsigned long esc_rate); +void msm_dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32 reg, + u32 bit_mask); + +#endif /* __DSI_PHY_H__ */ + -- cgit v1.2.3-54-g00ecf