![Laurent Pinchart](/assets/img/avatar_default.png)
The .set_timings() operations of the omap_dss_device instances don't need to modify the passed timings. Make the pointer const. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
892 lines
19 KiB
C
892 lines
19 KiB
C
/*
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* HDMI interface DSS driver for TI's OMAP4 family of SoCs.
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*
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* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
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* Authors: Yong Zhi
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* Mythri pk <mythripk@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define DSS_SUBSYS_NAME "HDMI"
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/interrupt.h>
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#include <linux/mutex.h>
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#include <linux/delay.h>
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#include <linux/string.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/clk.h>
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#include <linux/gpio.h>
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#include <linux/regulator/consumer.h>
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#include <linux/component.h>
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#include <linux/of.h>
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#include <linux/of_graph.h>
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#include <sound/omap-hdmi-audio.h>
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#include <media/cec.h>
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#include "omapdss.h"
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#include "hdmi4_core.h"
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#include "hdmi4_cec.h"
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#include "dss.h"
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#include "hdmi.h"
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static int hdmi_runtime_get(struct omap_hdmi *hdmi)
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{
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int r;
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DSSDBG("hdmi_runtime_get\n");
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r = pm_runtime_get_sync(&hdmi->pdev->dev);
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WARN_ON(r < 0);
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if (r < 0)
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return r;
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return 0;
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}
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static void hdmi_runtime_put(struct omap_hdmi *hdmi)
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{
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int r;
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DSSDBG("hdmi_runtime_put\n");
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r = pm_runtime_put_sync(&hdmi->pdev->dev);
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WARN_ON(r < 0 && r != -ENOSYS);
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}
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static irqreturn_t hdmi_irq_handler(int irq, void *data)
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{
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struct omap_hdmi *hdmi = data;
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struct hdmi_wp_data *wp = &hdmi->wp;
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u32 irqstatus;
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irqstatus = hdmi_wp_get_irqstatus(wp);
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hdmi_wp_set_irqstatus(wp, irqstatus);
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if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
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irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
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/*
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* If we get both connect and disconnect interrupts at the same
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* time, turn off the PHY, clear interrupts, and restart, which
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* raises connect interrupt if a cable is connected, or nothing
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* if cable is not connected.
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*/
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hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
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hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
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HDMI_IRQ_LINK_DISCONNECT);
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hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
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} else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
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hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
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} else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
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hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
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}
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if (irqstatus & HDMI_IRQ_CORE) {
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u32 intr4 = hdmi_read_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4);
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hdmi_write_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4, intr4);
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if (intr4 & 8)
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hdmi4_cec_irq(&hdmi->core);
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}
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return IRQ_HANDLED;
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}
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static int hdmi_power_on_core(struct omap_hdmi *hdmi)
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{
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int r;
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if (hdmi->core.core_pwr_cnt++)
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return 0;
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r = regulator_enable(hdmi->vdda_reg);
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if (r)
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goto err_reg_enable;
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r = hdmi_runtime_get(hdmi);
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if (r)
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goto err_runtime_get;
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hdmi4_core_powerdown_disable(&hdmi->core);
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/* Make selection of HDMI in DSS */
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dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
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hdmi->core_enabled = true;
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return 0;
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err_runtime_get:
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regulator_disable(hdmi->vdda_reg);
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err_reg_enable:
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hdmi->core.core_pwr_cnt--;
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return r;
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}
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static void hdmi_power_off_core(struct omap_hdmi *hdmi)
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{
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if (--hdmi->core.core_pwr_cnt)
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return;
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hdmi->core_enabled = false;
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hdmi_runtime_put(hdmi);
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regulator_disable(hdmi->vdda_reg);
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}
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static int hdmi_power_on_full(struct omap_hdmi *hdmi)
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{
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int r;
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struct videomode *vm;
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struct hdmi_wp_data *wp = &hdmi->wp;
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struct dss_pll_clock_info hdmi_cinfo = { 0 };
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unsigned int pc;
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r = hdmi_power_on_core(hdmi);
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if (r)
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return r;
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/* disable and clear irqs */
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hdmi_wp_clear_irqenable(wp, ~HDMI_IRQ_CORE);
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hdmi_wp_set_irqstatus(wp, ~HDMI_IRQ_CORE);
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vm = &hdmi->cfg.vm;
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DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
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vm->vactive);
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pc = vm->pixelclock;
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if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
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pc *= 2;
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/* DSS_HDMI_TCLK is bitclk / 10 */
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pc *= 10;
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dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
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pc, &hdmi_cinfo);
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r = dss_pll_enable(&hdmi->pll.pll);
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if (r) {
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DSSERR("Failed to enable PLL\n");
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goto err_pll_enable;
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}
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r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
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if (r) {
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DSSERR("Failed to configure PLL\n");
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goto err_pll_cfg;
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}
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r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
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hdmi_cinfo.clkout[0]);
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if (r) {
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DSSDBG("Failed to configure PHY\n");
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goto err_phy_cfg;
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}
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r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
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if (r)
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goto err_phy_pwr;
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hdmi4_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
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/* tv size */
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dss_mgr_set_timings(&hdmi->output, vm);
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r = dss_mgr_enable(&hdmi->output);
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if (r)
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goto err_mgr_enable;
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r = hdmi_wp_video_start(&hdmi->wp);
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if (r)
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goto err_vid_enable;
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hdmi_wp_set_irqenable(wp,
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HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
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return 0;
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err_vid_enable:
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dss_mgr_disable(&hdmi->output);
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err_mgr_enable:
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hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
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err_phy_pwr:
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err_phy_cfg:
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err_pll_cfg:
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dss_pll_disable(&hdmi->pll.pll);
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err_pll_enable:
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hdmi_power_off_core(hdmi);
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return -EIO;
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}
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static void hdmi_power_off_full(struct omap_hdmi *hdmi)
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{
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hdmi_wp_clear_irqenable(&hdmi->wp, ~HDMI_IRQ_CORE);
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hdmi_wp_video_stop(&hdmi->wp);
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dss_mgr_disable(&hdmi->output);
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hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
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dss_pll_disable(&hdmi->pll.pll);
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hdmi_power_off_core(hdmi);
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}
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static int hdmi_display_check_timings(struct omap_dss_device *dssdev,
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struct videomode *vm)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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if (!dispc_mgr_timings_ok(hdmi->dss->dispc, dssdev->dispc_channel, vm))
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return -EINVAL;
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return 0;
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}
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static void hdmi_display_set_timings(struct omap_dss_device *dssdev,
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const struct videomode *vm)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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mutex_lock(&hdmi->lock);
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hdmi->cfg.vm = *vm;
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dispc_set_tv_pclk(hdmi->dss->dispc, vm->pixelclock);
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mutex_unlock(&hdmi->lock);
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}
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static int hdmi_dump_regs(struct seq_file *s, void *p)
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{
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struct omap_hdmi *hdmi = s->private;
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mutex_lock(&hdmi->lock);
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if (hdmi_runtime_get(hdmi)) {
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mutex_unlock(&hdmi->lock);
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return 0;
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}
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hdmi_wp_dump(&hdmi->wp, s);
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hdmi_pll_dump(&hdmi->pll, s);
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hdmi_phy_dump(&hdmi->phy, s);
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hdmi4_core_dump(&hdmi->core, s);
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hdmi_runtime_put(hdmi);
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mutex_unlock(&hdmi->lock);
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return 0;
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}
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static int read_edid(struct omap_hdmi *hdmi, u8 *buf, int len)
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{
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int r;
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mutex_lock(&hdmi->lock);
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r = hdmi_runtime_get(hdmi);
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BUG_ON(r);
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r = hdmi4_read_edid(&hdmi->core, buf, len);
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hdmi_runtime_put(hdmi);
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mutex_unlock(&hdmi->lock);
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return r;
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}
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static void hdmi_start_audio_stream(struct omap_hdmi *hd)
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{
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hdmi_wp_audio_enable(&hd->wp, true);
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hdmi4_audio_start(&hd->core, &hd->wp);
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}
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static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
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{
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hdmi4_audio_stop(&hd->core, &hd->wp);
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hdmi_wp_audio_enable(&hd->wp, false);
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}
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static int hdmi_display_enable(struct omap_dss_device *dssdev)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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unsigned long flags;
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int r = 0;
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DSSDBG("ENTER hdmi_display_enable\n");
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mutex_lock(&hdmi->lock);
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if (!dssdev->dispc_channel_connected) {
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DSSERR("failed to enable display: no output/manager\n");
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r = -ENODEV;
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goto err0;
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}
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r = hdmi_power_on_full(hdmi);
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if (r) {
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DSSERR("failed to power on device\n");
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goto err0;
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}
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if (hdmi->audio_configured) {
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r = hdmi4_audio_config(&hdmi->core, &hdmi->wp,
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&hdmi->audio_config,
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hdmi->cfg.vm.pixelclock);
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if (r) {
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DSSERR("Error restoring audio configuration: %d", r);
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hdmi->audio_abort_cb(&hdmi->pdev->dev);
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hdmi->audio_configured = false;
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}
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}
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spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
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if (hdmi->audio_configured && hdmi->audio_playing)
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hdmi_start_audio_stream(hdmi);
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hdmi->display_enabled = true;
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spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
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mutex_unlock(&hdmi->lock);
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return 0;
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err0:
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mutex_unlock(&hdmi->lock);
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return r;
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}
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static void hdmi_display_disable(struct omap_dss_device *dssdev)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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unsigned long flags;
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DSSDBG("Enter hdmi_display_disable\n");
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mutex_lock(&hdmi->lock);
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spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
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hdmi_stop_audio_stream(hdmi);
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hdmi->display_enabled = false;
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spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
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hdmi_power_off_full(hdmi);
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mutex_unlock(&hdmi->lock);
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}
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int hdmi4_core_enable(struct hdmi_core_data *core)
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{
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struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core);
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int r = 0;
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DSSDBG("ENTER omapdss_hdmi4_core_enable\n");
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mutex_lock(&hdmi->lock);
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r = hdmi_power_on_core(hdmi);
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if (r) {
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DSSERR("failed to power on device\n");
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goto err0;
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}
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mutex_unlock(&hdmi->lock);
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return 0;
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err0:
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mutex_unlock(&hdmi->lock);
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return r;
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}
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void hdmi4_core_disable(struct hdmi_core_data *core)
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{
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struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core);
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DSSDBG("Enter omapdss_hdmi4_core_disable\n");
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mutex_lock(&hdmi->lock);
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hdmi_power_off_core(hdmi);
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mutex_unlock(&hdmi->lock);
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}
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static int hdmi_connect(struct omap_dss_device *src,
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struct omap_dss_device *dst)
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{
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int r;
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r = omapdss_device_connect(dst->dss, dst, dst->next);
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if (r)
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return r;
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dst->dispc_channel_connected = true;
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return 0;
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}
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static void hdmi_disconnect(struct omap_dss_device *src,
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struct omap_dss_device *dst)
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{
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dst->dispc_channel_connected = false;
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omapdss_device_disconnect(dst, dst->next);
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}
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static int hdmi_read_edid(struct omap_dss_device *dssdev,
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u8 *edid, int len)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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bool need_enable;
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int r;
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need_enable = hdmi->core_enabled == false;
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if (need_enable) {
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r = hdmi4_core_enable(&hdmi->core);
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if (r)
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return r;
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}
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r = read_edid(hdmi, edid, len);
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if (r >= 256)
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hdmi4_cec_set_phys_addr(&hdmi->core,
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cec_get_edid_phys_addr(edid, r, NULL));
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else
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hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID);
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if (need_enable)
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hdmi4_core_disable(&hdmi->core);
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return r;
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}
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static void hdmi_lost_hotplug(struct omap_dss_device *dssdev)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID);
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}
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static int hdmi_set_infoframe(struct omap_dss_device *dssdev,
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const struct hdmi_avi_infoframe *avi)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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hdmi->cfg.infoframe = *avi;
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return 0;
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}
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static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev,
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bool hdmi_mode)
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{
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struct omap_hdmi *hdmi = dssdev_to_hdmi(dssdev);
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hdmi->cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI;
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return 0;
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}
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static const struct omap_dss_device_ops hdmi_ops = {
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.connect = hdmi_connect,
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.disconnect = hdmi_disconnect,
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.enable = hdmi_display_enable,
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.disable = hdmi_display_disable,
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.check_timings = hdmi_display_check_timings,
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.set_timings = hdmi_display_set_timings,
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.read_edid = hdmi_read_edid,
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|
|
|
.hdmi = {
|
|
.lost_hotplug = hdmi_lost_hotplug,
|
|
.set_infoframe = hdmi_set_infoframe,
|
|
.set_hdmi_mode = hdmi_set_hdmi_mode,
|
|
},
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Audio Callbacks
|
|
*/
|
|
|
|
static int hdmi_audio_startup(struct device *dev,
|
|
void (*abort_cb)(struct device *dev))
|
|
{
|
|
struct omap_hdmi *hd = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&hd->lock);
|
|
|
|
WARN_ON(hd->audio_abort_cb != NULL);
|
|
|
|
hd->audio_abort_cb = abort_cb;
|
|
|
|
mutex_unlock(&hd->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdmi_audio_shutdown(struct device *dev)
|
|
{
|
|
struct omap_hdmi *hd = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&hd->lock);
|
|
hd->audio_abort_cb = NULL;
|
|
hd->audio_configured = false;
|
|
hd->audio_playing = false;
|
|
mutex_unlock(&hd->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdmi_audio_start(struct device *dev)
|
|
{
|
|
struct omap_hdmi *hd = dev_get_drvdata(dev);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&hd->audio_playing_lock, flags);
|
|
|
|
if (hd->display_enabled) {
|
|
if (!hdmi_mode_has_audio(&hd->cfg))
|
|
DSSERR("%s: Video mode does not support audio\n",
|
|
__func__);
|
|
hdmi_start_audio_stream(hd);
|
|
}
|
|
hd->audio_playing = true;
|
|
|
|
spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static void hdmi_audio_stop(struct device *dev)
|
|
{
|
|
struct omap_hdmi *hd = dev_get_drvdata(dev);
|
|
unsigned long flags;
|
|
|
|
WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
|
|
|
|
spin_lock_irqsave(&hd->audio_playing_lock, flags);
|
|
|
|
if (hd->display_enabled)
|
|
hdmi_stop_audio_stream(hd);
|
|
hd->audio_playing = false;
|
|
|
|
spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
|
|
}
|
|
|
|
static int hdmi_audio_config(struct device *dev,
|
|
struct omap_dss_audio *dss_audio)
|
|
{
|
|
struct omap_hdmi *hd = dev_get_drvdata(dev);
|
|
int ret = 0;
|
|
|
|
mutex_lock(&hd->lock);
|
|
|
|
if (hd->display_enabled) {
|
|
ret = hdmi4_audio_config(&hd->core, &hd->wp, dss_audio,
|
|
hd->cfg.vm.pixelclock);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
hd->audio_configured = true;
|
|
hd->audio_config = *dss_audio;
|
|
out:
|
|
mutex_unlock(&hd->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
|
|
.audio_startup = hdmi_audio_startup,
|
|
.audio_shutdown = hdmi_audio_shutdown,
|
|
.audio_start = hdmi_audio_start,
|
|
.audio_stop = hdmi_audio_stop,
|
|
.audio_config = hdmi_audio_config,
|
|
};
|
|
|
|
static int hdmi_audio_register(struct omap_hdmi *hdmi)
|
|
{
|
|
struct omap_hdmi_audio_pdata pdata = {
|
|
.dev = &hdmi->pdev->dev,
|
|
.version = 4,
|
|
.audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
|
|
.ops = &hdmi_audio_ops,
|
|
};
|
|
|
|
hdmi->audio_pdev = platform_device_register_data(
|
|
&hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
|
|
&pdata, sizeof(pdata));
|
|
|
|
if (IS_ERR(hdmi->audio_pdev))
|
|
return PTR_ERR(hdmi->audio_pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Component Bind & Unbind
|
|
*/
|
|
|
|
static int hdmi4_bind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct dss_device *dss = dss_get_device(master);
|
|
struct omap_hdmi *hdmi = dev_get_drvdata(dev);
|
|
int r;
|
|
|
|
hdmi->dss = dss;
|
|
|
|
r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
|
|
if (r)
|
|
return r;
|
|
|
|
r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp);
|
|
if (r)
|
|
goto err_pll_uninit;
|
|
|
|
r = hdmi_audio_register(hdmi);
|
|
if (r) {
|
|
DSSERR("Registering HDMI audio failed\n");
|
|
goto err_cec_uninit;
|
|
}
|
|
|
|
hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
|
|
hdmi);
|
|
|
|
return 0;
|
|
|
|
err_cec_uninit:
|
|
hdmi4_cec_uninit(&hdmi->core);
|
|
err_pll_uninit:
|
|
hdmi_pll_uninit(&hdmi->pll);
|
|
return r;
|
|
}
|
|
|
|
static void hdmi4_unbind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct omap_hdmi *hdmi = dev_get_drvdata(dev);
|
|
|
|
dss_debugfs_remove_file(hdmi->debugfs);
|
|
|
|
if (hdmi->audio_pdev)
|
|
platform_device_unregister(hdmi->audio_pdev);
|
|
|
|
hdmi4_cec_uninit(&hdmi->core);
|
|
hdmi_pll_uninit(&hdmi->pll);
|
|
}
|
|
|
|
static const struct component_ops hdmi4_component_ops = {
|
|
.bind = hdmi4_bind,
|
|
.unbind = hdmi4_unbind,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Probe & Remove, Suspend & Resume
|
|
*/
|
|
|
|
static int hdmi4_init_output(struct omap_hdmi *hdmi)
|
|
{
|
|
struct omap_dss_device *out = &hdmi->output;
|
|
int r;
|
|
|
|
out->dev = &hdmi->pdev->dev;
|
|
out->id = OMAP_DSS_OUTPUT_HDMI;
|
|
out->output_type = OMAP_DISPLAY_TYPE_HDMI;
|
|
out->name = "hdmi.0";
|
|
out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
|
|
out->ops = &hdmi_ops;
|
|
out->owner = THIS_MODULE;
|
|
out->of_ports = BIT(0);
|
|
out->ops_flags = OMAP_DSS_DEVICE_OP_EDID;
|
|
|
|
out->next = omapdss_of_find_connected_device(out->dev->of_node, 0);
|
|
if (IS_ERR(out->next)) {
|
|
if (PTR_ERR(out->next) != -EPROBE_DEFER)
|
|
dev_err(out->dev, "failed to find video sink\n");
|
|
return PTR_ERR(out->next);
|
|
}
|
|
|
|
r = omapdss_output_validate(out);
|
|
if (r) {
|
|
omapdss_device_put(out->next);
|
|
out->next = NULL;
|
|
return r;
|
|
}
|
|
|
|
omapdss_device_register(out);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hdmi4_uninit_output(struct omap_hdmi *hdmi)
|
|
{
|
|
struct omap_dss_device *out = &hdmi->output;
|
|
|
|
if (out->next)
|
|
omapdss_device_put(out->next);
|
|
omapdss_device_unregister(out);
|
|
}
|
|
|
|
static int hdmi4_probe_of(struct omap_hdmi *hdmi)
|
|
{
|
|
struct platform_device *pdev = hdmi->pdev;
|
|
struct device_node *node = pdev->dev.of_node;
|
|
struct device_node *ep;
|
|
int r;
|
|
|
|
ep = of_graph_get_endpoint_by_regs(node, 0, 0);
|
|
if (!ep)
|
|
return 0;
|
|
|
|
r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
|
|
of_node_put(ep);
|
|
return r;
|
|
}
|
|
|
|
static int hdmi4_probe(struct platform_device *pdev)
|
|
{
|
|
struct omap_hdmi *hdmi;
|
|
int irq;
|
|
int r;
|
|
|
|
hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
|
|
if (!hdmi)
|
|
return -ENOMEM;
|
|
|
|
hdmi->pdev = pdev;
|
|
|
|
dev_set_drvdata(&pdev->dev, hdmi);
|
|
|
|
mutex_init(&hdmi->lock);
|
|
spin_lock_init(&hdmi->audio_playing_lock);
|
|
|
|
r = hdmi4_probe_of(hdmi);
|
|
if (r)
|
|
goto err_free;
|
|
|
|
r = hdmi_wp_init(pdev, &hdmi->wp, 4);
|
|
if (r)
|
|
goto err_free;
|
|
|
|
r = hdmi_phy_init(pdev, &hdmi->phy, 4);
|
|
if (r)
|
|
goto err_free;
|
|
|
|
r = hdmi4_core_init(pdev, &hdmi->core);
|
|
if (r)
|
|
goto err_free;
|
|
|
|
irq = platform_get_irq(pdev, 0);
|
|
if (irq < 0) {
|
|
DSSERR("platform_get_irq failed\n");
|
|
r = -ENODEV;
|
|
goto err_free;
|
|
}
|
|
|
|
r = devm_request_threaded_irq(&pdev->dev, irq,
|
|
NULL, hdmi_irq_handler,
|
|
IRQF_ONESHOT, "OMAP HDMI", hdmi);
|
|
if (r) {
|
|
DSSERR("HDMI IRQ request failed\n");
|
|
goto err_free;
|
|
}
|
|
|
|
hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
|
|
if (IS_ERR(hdmi->vdda_reg)) {
|
|
r = PTR_ERR(hdmi->vdda_reg);
|
|
if (r != -EPROBE_DEFER)
|
|
DSSERR("can't get VDDA regulator\n");
|
|
goto err_free;
|
|
}
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
|
|
r = hdmi4_init_output(hdmi);
|
|
if (r)
|
|
goto err_pm_disable;
|
|
|
|
r = component_add(&pdev->dev, &hdmi4_component_ops);
|
|
if (r)
|
|
goto err_uninit_output;
|
|
|
|
return 0;
|
|
|
|
err_uninit_output:
|
|
hdmi4_uninit_output(hdmi);
|
|
err_pm_disable:
|
|
pm_runtime_disable(&pdev->dev);
|
|
err_free:
|
|
kfree(hdmi);
|
|
return r;
|
|
}
|
|
|
|
static int hdmi4_remove(struct platform_device *pdev)
|
|
{
|
|
struct omap_hdmi *hdmi = platform_get_drvdata(pdev);
|
|
|
|
component_del(&pdev->dev, &hdmi4_component_ops);
|
|
|
|
hdmi4_uninit_output(hdmi);
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
|
|
|
kfree(hdmi);
|
|
return 0;
|
|
}
|
|
|
|
static int hdmi_runtime_suspend(struct device *dev)
|
|
{
|
|
struct omap_hdmi *hdmi = dev_get_drvdata(dev);
|
|
|
|
dispc_runtime_put(hdmi->dss->dispc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdmi_runtime_resume(struct device *dev)
|
|
{
|
|
struct omap_hdmi *hdmi = dev_get_drvdata(dev);
|
|
int r;
|
|
|
|
r = dispc_runtime_get(hdmi->dss->dispc);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops hdmi_pm_ops = {
|
|
.runtime_suspend = hdmi_runtime_suspend,
|
|
.runtime_resume = hdmi_runtime_resume,
|
|
};
|
|
|
|
static const struct of_device_id hdmi_of_match[] = {
|
|
{ .compatible = "ti,omap4-hdmi", },
|
|
{},
|
|
};
|
|
|
|
struct platform_driver omapdss_hdmi4hw_driver = {
|
|
.probe = hdmi4_probe,
|
|
.remove = hdmi4_remove,
|
|
.driver = {
|
|
.name = "omapdss_hdmi",
|
|
.pm = &hdmi_pm_ops,
|
|
.of_match_table = hdmi_of_match,
|
|
.suppress_bind_attrs = true,
|
|
},
|
|
};
|