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https://github.com/followmsi/android_kernel_google_msm.git
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5fed32c16c
Use YCrCb 420 (NV12) as the output format for writeback. For Wifi Display use case, NV12 is required as the encoder requires this as the output format. Change-Id: Ica8851073476b9c05f3b5b41232803c2d71f7a3e Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>
111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/init.h>
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#include <linux/ioctl.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/msm_mdp.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/version.h>
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#include "mdss_panel.h"
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static int mdss_wb_on(struct mdss_panel_data *pdata)
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{
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pr_debug("%s\n", __func__);
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return 0;
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}
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static int mdss_wb_off(struct mdss_panel_data *pdata)
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{
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pr_debug("%s\n", __func__);
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return 0;
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}
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static int mdss_wb_parse_dt(struct platform_device *pdev,
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struct mdss_panel_data *pdata)
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{
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struct device_node *np = pdev->dev.of_node;
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u32 res[2], tmp;
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int rc;
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rc = of_property_read_u32_array(np, "qcom,mdss_pan_res", res, 2);
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pdata->panel_info.xres = (!rc ? res[0] : 1280);
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pdata->panel_info.yres = (!rc ? res[1] : 720);
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rc = of_property_read_u32(np, "qcom,mdss_pan_bpp", &tmp);
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pdata->panel_info.bpp = (!rc ? tmp : 24);
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return 0;
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}
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static int mdss_wb_probe(struct platform_device *pdev)
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{
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struct mdss_panel_data *pdata = NULL;
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int rc = 0;
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if (!pdev->dev.of_node)
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return -ENODEV;
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pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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return -ENOMEM;
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rc = !mdss_wb_parse_dt(pdev, pdata);
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if (!rc)
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return rc;
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pdata->panel_info.type = WRITEBACK_PANEL;
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pdata->panel_info.clk_rate = 74250000;
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pdata->panel_info.pdest = DISPLAY_3;
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pdata->panel_info.out_format = MDP_Y_CBCR_H2V2;
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pdata->on = mdss_wb_on;
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pdata->off = mdss_wb_off;
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pdev->dev.platform_data = pdata;
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rc = mdss_register_panel(pdata);
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if (rc) {
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dev_err(&pdev->dev, "unable to register writeback panel\n");
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return rc;
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}
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return rc;
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}
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static const struct of_device_id mdss_wb_match[] = {
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{ .compatible = "qcom,mdss_wb", },
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{ { 0 } }
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};
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static struct platform_driver mdss_wb_driver = {
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.probe = mdss_wb_probe,
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.driver = {
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.name = "mdss_wb",
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.of_match_table = mdss_wb_match,
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},
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};
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static int __init mdss_wb_driver_init(void)
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{
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int rc = 0;
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rc = platform_driver_register(&mdss_wb_driver);
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return rc;
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}
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module_init(mdss_wb_driver_init);
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