/* SPDX-License-Identifier: GPL-2.0-only */ /* * drivers/media/i2c/smiapp-pll.h * * Generic driver for SMIA/SMIA++ compliant camera modules * * Copyright (C) 2012 Nokia Corporation * Contact: Sakari Ailus <sakari.ailus@iki.fi> */ #ifndef SMIAPP_PLL_H #define SMIAPP_PLL_H /* CSI-2 or CCP-2 */ #define SMIAPP_PLL_BUS_TYPE_CSI2 0x00 #define SMIAPP_PLL_BUS_TYPE_PARALLEL 0x01 /* op pix clock is for all lanes in total normally */ #define SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE (1 << 0) #define SMIAPP_PLL_FLAG_NO_OP_CLOCKS (1 << 1) struct smiapp_pll_branch { uint16_t sys_clk_div; uint16_t pix_clk_div; uint32_t sys_clk_freq_hz; uint32_t pix_clk_freq_hz; }; struct smiapp_pll { /* input values */ uint8_t bus_type; union { struct { uint8_t lanes; } csi2; struct { uint8_t bus_width; } parallel; }; unsigned long flags; uint8_t binning_horizontal; uint8_t binning_vertical; uint8_t scale_m; uint8_t scale_n; uint8_t bits_per_pixel; uint32_t link_freq; uint32_t ext_clk_freq_hz; /* output values */ uint16_t pre_pll_clk_div; uint16_t pll_multiplier; uint32_t pll_ip_clk_freq_hz; uint32_t pll_op_clk_freq_hz; struct smiapp_pll_branch vt; struct smiapp_pll_branch op; uint32_t pixel_rate_csi; uint32_t pixel_rate_pixel_array; }; struct smiapp_pll_branch_limits { uint16_t min_sys_clk_div; uint16_t max_sys_clk_div; uint32_t min_sys_clk_freq_hz; uint32_t max_sys_clk_freq_hz; uint16_t min_pix_clk_div; uint16_t max_pix_clk_div; uint32_t min_pix_clk_freq_hz; uint32_t max_pix_clk_freq_hz; }; struct smiapp_pll_limits { /* Strict PLL limits */ uint32_t min_ext_clk_freq_hz; uint32_t max_ext_clk_freq_hz; uint16_t min_pre_pll_clk_div; uint16_t max_pre_pll_clk_div; uint32_t min_pll_ip_freq_hz; uint32_t max_pll_ip_freq_hz; uint16_t min_pll_multiplier; uint16_t max_pll_multiplier; uint32_t min_pll_op_freq_hz; uint32_t max_pll_op_freq_hz; struct smiapp_pll_branch_limits vt; struct smiapp_pll_branch_limits op; /* Other relevant limits */ uint32_t min_line_length_pck_bin; uint32_t min_line_length_pck; }; struct device; int smiapp_pll_calculate(struct device *dev, const struct smiapp_pll_limits *limits, struct smiapp_pll *pll); #endif /* SMIAPP_PLL_H */