12 #include "hdmi.h"
14 static void msm_hdmi_phy_reset(struct hdmi *hdmi)  in msm_hdmi_phy_reset()  argument
18 	val = hdmi_read(hdmi, REG_HDMI_PHY_CTRL);  in msm_hdmi_phy_reset()
22 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
26 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
32 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
36 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
44 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
48 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
54 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
58 		hdmi_write(hdmi, REG_HDMI_PHY_CTRL,  in msm_hdmi_phy_reset()
63 static void enable_hpd_clocks(struct hdmi *hdmi, bool enable)  in enable_hpd_clocks()  argument
65 	const struct hdmi_platform_config *config = hdmi->config;  in enable_hpd_clocks()
66 	struct device *dev = &hdmi->pdev->dev;  in enable_hpd_clocks()
72 				ret = clk_set_rate(hdmi->hpd_clks[i],  in enable_hpd_clocks()
80 			ret = clk_prepare_enable(hdmi->hpd_clks[i]);  in enable_hpd_clocks()
89 			clk_disable_unprepare(hdmi->hpd_clks[i]);  in enable_hpd_clocks()
96 	struct hdmi *hdmi = hdmi_bridge->hdmi;  in msm_hdmi_hpd_enable()  local
97 	const struct hdmi_platform_config *config = hdmi->config;  in msm_hdmi_hpd_enable()
98 	struct device *dev = &hdmi->pdev->dev;  in msm_hdmi_hpd_enable()
103 	ret = regulator_bulk_enable(config->hpd_reg_cnt, hdmi->hpd_regs);  in msm_hdmi_hpd_enable()
115 	if (hdmi->hpd_gpiod)  in msm_hdmi_hpd_enable()
116 		gpiod_set_value_cansleep(hdmi->hpd_gpiod, 1);  in msm_hdmi_hpd_enable()
119 	enable_hpd_clocks(hdmi, true);  in msm_hdmi_hpd_enable()
121 	msm_hdmi_set_mode(hdmi, false);  in msm_hdmi_hpd_enable()
122 	msm_hdmi_phy_reset(hdmi);  in msm_hdmi_hpd_enable()
123 	msm_hdmi_set_mode(hdmi, true);  in msm_hdmi_hpd_enable()
125 	hdmi_write(hdmi, REG_HDMI_USEC_REFTIMER, 0x0001001b);  in msm_hdmi_hpd_enable()
128 	hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL,  in msm_hdmi_hpd_enable()
133 	spin_lock_irqsave(&hdmi->reg_lock, flags);  in msm_hdmi_hpd_enable()
134 	hpd_ctrl = hdmi_read(hdmi, REG_HDMI_HPD_CTRL);  in msm_hdmi_hpd_enable()
138 	hdmi_write(hdmi, REG_HDMI_HPD_CTRL,  in msm_hdmi_hpd_enable()
140 	hdmi_write(hdmi, REG_HDMI_HPD_CTRL,  in msm_hdmi_hpd_enable()
142 	spin_unlock_irqrestore(&hdmi->reg_lock, flags);  in msm_hdmi_hpd_enable()
152 	struct hdmi *hdmi = hdmi_bridge->hdmi;  in msm_hdmi_hpd_disable()  local
153 	const struct hdmi_platform_config *config = hdmi->config;  in msm_hdmi_hpd_disable()
154 	struct device *dev = &hdmi->pdev->dev;  in msm_hdmi_hpd_disable()
158 	hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, 0);  in msm_hdmi_hpd_disable()
160 	msm_hdmi_set_mode(hdmi, false);  in msm_hdmi_hpd_disable()
162 	enable_hpd_clocks(hdmi, false);  in msm_hdmi_hpd_disable()
169 	ret = regulator_bulk_disable(config->hpd_reg_cnt, hdmi->hpd_regs);  in msm_hdmi_hpd_disable()
177 	struct hdmi *hdmi = hdmi_bridge->hdmi;  in msm_hdmi_hpd_irq()  local
181 	hpd_int_status = hdmi_read(hdmi, REG_HDMI_HPD_INT_STATUS);  in msm_hdmi_hpd_irq()
182 	hpd_int_ctrl   = hdmi_read(hdmi, REG_HDMI_HPD_INT_CTRL);  in msm_hdmi_hpd_irq()
189 		hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL,  in msm_hdmi_hpd_irq()
198 		hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, hpd_int_ctrl);  in msm_hdmi_hpd_irq()
200 		queue_work(hdmi->workq, &hdmi_bridge->hpd_work);  in msm_hdmi_hpd_irq()
204 static enum drm_connector_status detect_reg(struct hdmi *hdmi)  in detect_reg()  argument
208 	pm_runtime_get_sync(&hdmi->pdev->dev);  in detect_reg()
209 	enable_hpd_clocks(hdmi, true);  in detect_reg()
211 	hpd_int_status = hdmi_read(hdmi, REG_HDMI_HPD_INT_STATUS);  in detect_reg()
213 	enable_hpd_clocks(hdmi, false);  in detect_reg()
214 	pm_runtime_put(&hdmi->pdev->dev);  in detect_reg()
221 static enum drm_connector_status detect_gpio(struct hdmi *hdmi)  in detect_gpio()  argument
223 	return gpiod_get_value(hdmi->hpd_gpiod) ?  in detect_gpio()
232 	struct hdmi *hdmi = hdmi_bridge->hdmi;  in msm_hdmi_bridge_detect()  local
240 	if (!hdmi->hpd_gpiod)  in msm_hdmi_bridge_detect()
241 		return detect_reg(hdmi);  in msm_hdmi_bridge_detect()
244 		stat_gpio = detect_gpio(hdmi);  in msm_hdmi_bridge_detect()
245 		stat_reg  = detect_reg(hdmi);  in msm_hdmi_bridge_detect()
254 	 * so trust that one the most if we didn't manage to get hdmi and  in msm_hdmi_bridge_detect()