1802d0beec
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* drivers/media/i2c/smiapp-pll.h
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*
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* Generic driver for SMIA/SMIA++ compliant camera modules
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*
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* Copyright (C) 2012 Nokia Corporation
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* Contact: Sakari Ailus <sakari.ailus@iki.fi>
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*/
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#ifndef SMIAPP_PLL_H
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#define SMIAPP_PLL_H
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/* CSI-2 or CCP-2 */
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#define SMIAPP_PLL_BUS_TYPE_CSI2 0x00
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#define SMIAPP_PLL_BUS_TYPE_PARALLEL 0x01
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/* op pix clock is for all lanes in total normally */
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#define SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE (1 << 0)
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#define SMIAPP_PLL_FLAG_NO_OP_CLOCKS (1 << 1)
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struct smiapp_pll_branch {
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uint16_t sys_clk_div;
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uint16_t pix_clk_div;
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uint32_t sys_clk_freq_hz;
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uint32_t pix_clk_freq_hz;
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};
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struct smiapp_pll {
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/* input values */
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uint8_t bus_type;
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union {
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struct {
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uint8_t lanes;
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} csi2;
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struct {
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uint8_t bus_width;
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} parallel;
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};
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unsigned long flags;
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uint8_t binning_horizontal;
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uint8_t binning_vertical;
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uint8_t scale_m;
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uint8_t scale_n;
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uint8_t bits_per_pixel;
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uint32_t link_freq;
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uint32_t ext_clk_freq_hz;
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/* output values */
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uint16_t pre_pll_clk_div;
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uint16_t pll_multiplier;
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uint32_t pll_ip_clk_freq_hz;
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uint32_t pll_op_clk_freq_hz;
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struct smiapp_pll_branch vt;
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struct smiapp_pll_branch op;
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uint32_t pixel_rate_csi;
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uint32_t pixel_rate_pixel_array;
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};
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struct smiapp_pll_branch_limits {
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uint16_t min_sys_clk_div;
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uint16_t max_sys_clk_div;
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uint32_t min_sys_clk_freq_hz;
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uint32_t max_sys_clk_freq_hz;
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uint16_t min_pix_clk_div;
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uint16_t max_pix_clk_div;
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uint32_t min_pix_clk_freq_hz;
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uint32_t max_pix_clk_freq_hz;
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};
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struct smiapp_pll_limits {
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/* Strict PLL limits */
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uint32_t min_ext_clk_freq_hz;
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uint32_t max_ext_clk_freq_hz;
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uint16_t min_pre_pll_clk_div;
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uint16_t max_pre_pll_clk_div;
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uint32_t min_pll_ip_freq_hz;
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uint32_t max_pll_ip_freq_hz;
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uint16_t min_pll_multiplier;
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uint16_t max_pll_multiplier;
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uint32_t min_pll_op_freq_hz;
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uint32_t max_pll_op_freq_hz;
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struct smiapp_pll_branch_limits vt;
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struct smiapp_pll_branch_limits op;
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/* Other relevant limits */
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uint32_t min_line_length_pck_bin;
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uint32_t min_line_length_pck;
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};
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struct device;
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int smiapp_pll_calculate(struct device *dev,
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const struct smiapp_pll_limits *limits,
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struct smiapp_pll *pll);
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#endif /* SMIAPP_PLL_H */
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