Add HDMI CEC support for OMAP5.
Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Reviewed-by: Tomi Valkeinen tomi.valkeinen@ideasonboard.com --- drivers/gpu/drm/omapdrm/Kconfig | 8 + drivers/gpu/drm/omapdrm/Makefile | 1 + drivers/gpu/drm/omapdrm/dss/hdmi.h | 1 + drivers/gpu/drm/omapdrm/dss/hdmi5.c | 64 +++++-- drivers/gpu/drm/omapdrm/dss/hdmi5_cec.c | 209 +++++++++++++++++++++++ drivers/gpu/drm/omapdrm/dss/hdmi5_cec.h | 42 +++++ drivers/gpu/drm/omapdrm/dss/hdmi5_core.c | 35 +++- drivers/gpu/drm/omapdrm/dss/hdmi5_core.h | 33 +++- 8 files changed, 374 insertions(+), 19 deletions(-) create mode 100644 drivers/gpu/drm/omapdrm/dss/hdmi5_cec.c create mode 100644 drivers/gpu/drm/omapdrm/dss/hdmi5_cec.h
diff --git a/drivers/gpu/drm/omapdrm/Kconfig b/drivers/gpu/drm/omapdrm/Kconfig index e7281da5bc6a..08866ac7d869 100644 --- a/drivers/gpu/drm/omapdrm/Kconfig +++ b/drivers/gpu/drm/omapdrm/Kconfig @@ -80,6 +80,14 @@ config OMAP5_DSS_HDMI Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI specification.
+config OMAP5_DSS_HDMI_CEC + bool "Enable HDMI CEC support for OMAP5" + depends on OMAP5_DSS_HDMI + select CEC_CORE + default y + help + When selected the HDMI transmitter will support the CEC feature. + config OMAP2_DSS_SDI bool "SDI support" default n diff --git a/drivers/gpu/drm/omapdrm/Makefile b/drivers/gpu/drm/omapdrm/Makefile index 21e8277ff88f..0732bd2dae1e 100644 --- a/drivers/gpu/drm/omapdrm/Makefile +++ b/drivers/gpu/drm/omapdrm/Makefile @@ -29,6 +29,7 @@ omapdrm-$(CONFIG_OMAP2_DSS_HDMI_COMMON) += dss/hdmi_common.o dss/hdmi_wp.o \ omapdrm-$(CONFIG_OMAP4_DSS_HDMI) += dss/hdmi4.o dss/hdmi4_core.o omapdrm-$(CONFIG_OMAP4_DSS_HDMI_CEC) += dss/hdmi4_cec.o omapdrm-$(CONFIG_OMAP5_DSS_HDMI) += dss/hdmi5.o dss/hdmi5_core.o +omapdrm-$(CONFIG_OMAP5_DSS_HDMI_CEC) += dss/hdmi5_cec.o ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
obj-$(CONFIG_DRM_OMAP) += omapdrm.o diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi.h b/drivers/gpu/drm/omapdrm/dss/hdmi.h index c4a4e07f0b99..72d8ae441da6 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi.h +++ b/drivers/gpu/drm/omapdrm/dss/hdmi.h @@ -261,6 +261,7 @@ struct hdmi_core_data { struct hdmi_wp_data *wp; unsigned int core_pwr_cnt; struct cec_adapter *adap; + struct clk *cec_clk; };
static inline void hdmi_write_reg(void __iomem *base_addr, const u32 idx, diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c index 65085d886da5..11941d7b1d81 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c @@ -29,12 +29,14 @@ #include <linux/of.h> #include <linux/of_graph.h> #include <sound/omap-hdmi-audio.h> +#include <media/cec.h>
#include <drm/drm_atomic.h> #include <drm/drm_atomic_state_helper.h>
#include "omapdss.h" #include "hdmi5_core.h" +#include "hdmi5_cec.h" #include "dss.h"
static int hdmi_runtime_get(struct omap_hdmi *hdmi) @@ -105,6 +107,9 @@ static irqreturn_t hdmi_irq_handler(int irq, void *data) hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); }
+ if (irqstatus & HDMI_IRQ_CORE) + hdmi5_core_handle_irqs(&hdmi->core); + return IRQ_HANDLED; }
@@ -112,9 +117,12 @@ static int hdmi_power_on_core(struct omap_hdmi *hdmi) { int r;
+ if (hdmi->core.core_pwr_cnt++) + return 0; + r = regulator_enable(hdmi->vdda_reg); if (r) - return r; + goto err_reg_enable;
r = hdmi_runtime_get(hdmi); if (r) @@ -129,12 +137,17 @@ static int hdmi_power_on_core(struct omap_hdmi *hdmi)
err_runtime_get: regulator_disable(hdmi->vdda_reg); +err_reg_enable: + hdmi->core.core_pwr_cnt--;
return r; }
static void hdmi_power_off_core(struct omap_hdmi *hdmi) { + if (--hdmi->core.core_pwr_cnt) + return; + hdmi->core_enabled = false;
hdmi_runtime_put(hdmi); @@ -168,9 +181,9 @@ static int hdmi_power_on_full(struct omap_hdmi *hdmi) pc, &hdmi_cinfo);
/* disable and clear irqs */ - hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff); + hdmi_wp_clear_irqenable(&hdmi->wp, ~HDMI_IRQ_CORE); hdmi_wp_set_irqstatus(&hdmi->wp, - hdmi_wp_get_irqstatus(&hdmi->wp)); + hdmi_wp_get_irqstatus(&hdmi->wp) & ~HDMI_IRQ_CORE);
r = dss_pll_enable(&hdmi->pll.pll); if (r) { @@ -225,7 +238,7 @@ static int hdmi_power_on_full(struct omap_hdmi *hdmi)
static void hdmi_power_off_full(struct omap_hdmi *hdmi) { - hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff); + hdmi_wp_clear_irqenable(&hdmi->wp, ~HDMI_IRQ_CORE);
hdmi_wp_video_stop(&hdmi->wp);
@@ -273,11 +286,11 @@ static void hdmi_stop_audio_stream(struct omap_hdmi *hd) REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2); }
-static int hdmi_core_enable(struct omap_hdmi *hdmi) +int hdmi5_core_enable(struct omap_hdmi *hdmi) { int r = 0;
- DSSDBG("ENTER omapdss_hdmi_core_enable\n"); + DSSDBG("ENTER %s\n", __func__);
mutex_lock(&hdmi->lock);
@@ -295,9 +308,9 @@ static int hdmi_core_enable(struct omap_hdmi *hdmi) return r; }
-static void hdmi_core_disable(struct omap_hdmi *hdmi) +void hdmi5_core_disable(struct omap_hdmi *hdmi) { - DSSDBG("Enter omapdss_hdmi_core_disable\n"); + DSSDBG("ENTER %s\n", __func__);
mutex_lock(&hdmi->lock);
@@ -424,6 +437,15 @@ static void hdmi5_bridge_disable(struct drm_bridge *bridge, mutex_unlock(&hdmi->lock); }
+static void hdmi5_bridge_hpd_notify(struct drm_bridge *bridge, + enum drm_connector_status status) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + + if (status == connector_status_disconnected) + hdmi5_cec_set_phys_addr(&hdmi->core, NULL); +} + static struct edid *hdmi5_bridge_get_edid(struct drm_bridge *bridge, struct drm_connector *connector) { @@ -436,7 +458,7 @@ static struct edid *hdmi5_bridge_get_edid(struct drm_bridge *bridge, need_enable = hdmi->core_enabled == false;
if (need_enable) { - r = hdmi_core_enable(hdmi); + r = hdmi5_core_enable(hdmi); if (r) return NULL; } @@ -460,12 +482,31 @@ static struct edid *hdmi5_bridge_get_edid(struct drm_bridge *bridge, hdmi_runtime_put(hdmi); mutex_unlock(&hdmi->lock);
+ hdmi5_cec_set_phys_addr(&hdmi->core, edid); + if (need_enable) - hdmi_core_disable(hdmi); + hdmi5_core_disable(hdmi);
return (struct edid *)edid; }
+static int hdmi5_bridge_connector_attach(struct drm_bridge *bridge, + struct drm_connector *conn) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + + hdmi5_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp, conn); + return 0; +} + +static void hdmi5_bridge_connector_detach(struct drm_bridge *bridge, + struct drm_connector *conn) +{ + struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge); + + hdmi5_cec_uninit(&hdmi->core); +} + static const struct drm_bridge_funcs hdmi5_bridge_funcs = { .attach = hdmi5_bridge_attach, .mode_set = hdmi5_bridge_mode_set, @@ -474,7 +515,10 @@ static const struct drm_bridge_funcs hdmi5_bridge_funcs = { .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_enable = hdmi5_bridge_enable, .atomic_disable = hdmi5_bridge_disable, + .hpd_notify = hdmi5_bridge_hpd_notify, .get_edid = hdmi5_bridge_get_edid, + .connector_attach = hdmi5_bridge_connector_attach, + .connector_detach = hdmi5_bridge_connector_detach, };
static void hdmi5_bridge_init(struct omap_hdmi *hdmi) diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5_cec.c b/drivers/gpu/drm/omapdrm/dss/hdmi5_cec.c new file mode 100644 index 000000000000..9df6805a5cb4 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5_cec.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * HDMI CEC + * + * Copyright 2019 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/clk.h> + +#include "dss.h" +#include "hdmi.h" +#include "hdmi5_core.h" +#include "hdmi5_cec.h" + +static int hdmi5_cec_log_addr(struct cec_adapter *adap, u8 logical_addr) +{ + struct hdmi_core_data *core = cec_get_drvdata(adap); + u8 v; + + if (logical_addr == CEC_LOG_ADDR_INVALID) { + hdmi_write_reg(core->base, HDMI_CORE_CEC_ADDR_L, 0); + hdmi_write_reg(core->base, HDMI_CORE_CEC_ADDR_H, 0); + + return 0; + } + + if (logical_addr <= 7) { + v = hdmi_read_reg(core->base, HDMI_CORE_CEC_ADDR_L); + v |= 1 << logical_addr; + hdmi_write_reg(core->base, HDMI_CORE_CEC_ADDR_L, v); + v = hdmi_read_reg(core->base, HDMI_CORE_CEC_ADDR_H); + v |= 1 << 7; + hdmi_write_reg(core->base, HDMI_CORE_CEC_ADDR_H, v); + } else { + v = hdmi_read_reg(core->base, HDMI_CORE_CEC_ADDR_H); + v |= 1 << (logical_addr - 8); + v |= 1 << 7; + hdmi_write_reg(core->base, HDMI_CORE_CEC_ADDR_H, v); + } + + return 0; +} + +static int hdmi5_cec_transmit(struct cec_adapter *adap, u8 attempts, + u32 signal_free_time, struct cec_msg *msg) +{ + struct hdmi_core_data *core = cec_get_drvdata(adap); + unsigned int i, ctrl; + + switch (signal_free_time) { + case CEC_SIGNAL_FREE_TIME_RETRY: + ctrl = CEC_CTRL_RETRY; + break; + case CEC_SIGNAL_FREE_TIME_NEW_INITIATOR: + default: + ctrl = CEC_CTRL_NORMAL; + break; + case CEC_SIGNAL_FREE_TIME_NEXT_XFER: + ctrl = CEC_CTRL_IMMED; + break; + } + + for (i = 0; i < msg->len; i++) + hdmi_write_reg(core->base, + HDMI_CORE_CEC_TX_DATA0 + i * 4, msg->msg[i]); + + hdmi_write_reg(core->base, HDMI_CORE_CEC_TX_CNT, msg->len); + hdmi_write_reg(core->base, HDMI_CORE_CEC_CTRL, + ctrl | CEC_CTRL_START); + + return 0; +} + +void hdmi5_cec_irq(struct hdmi_core_data *core, unsigned int stat) +{ + struct cec_adapter *adap = core->adap; + + if (stat & CEC_STAT_ERROR_INIT) + cec_transmit_attempt_done(adap, CEC_TX_STATUS_ERROR); + else if (stat & CEC_STAT_DONE) + cec_transmit_attempt_done(adap, CEC_TX_STATUS_OK); + else if (stat & CEC_STAT_NACK) + cec_transmit_attempt_done(adap, CEC_TX_STATUS_NACK); + + if (stat & CEC_STAT_EOM) { + struct cec_msg msg = {}; + unsigned int len, i; + + len = hdmi_read_reg(core->base, HDMI_CORE_CEC_RX_CNT); + if (len > sizeof(msg.msg)) + len = sizeof(msg.msg); + + for (i = 0; i < len; i++) + msg.msg[i] = + hdmi_read_reg(core->base, + HDMI_CORE_CEC_RX_DATA0 + i * 4); + + hdmi_write_reg(core->base, HDMI_CORE_CEC_LOCK, 0); + + msg.len = len; + cec_received_msg(adap, &msg); + } +} + +static int hdmi5_cec_enable(struct cec_adapter *adap, bool enable) +{ + struct hdmi_core_data *core = cec_get_drvdata(adap); + struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core); + unsigned int irqs; + int err; + + if (!enable) { + hdmi_write_reg(core->base, HDMI_CORE_CEC_MASK, ~0); + hdmi_write_reg(core->base, HDMI_CORE_IH_MUTE_CEC_STAT0, ~0); + hdmi_wp_clear_irqenable(core->wp, HDMI_IRQ_CORE); + hdmi_wp_set_irqstatus(core->wp, HDMI_IRQ_CORE); + REG_FLD_MOD(core->base, HDMI_CORE_MC_CLKDIS, 0x01, 5, 5); + hdmi5_core_disable(hdmi); + + return 0; + } + + err = hdmi5_core_enable(hdmi); + if (err) + return err; + + REG_FLD_MOD(core->base, HDMI_CORE_MC_CLKDIS, 0x00, 5, 5); + hdmi_write_reg(core->base, HDMI_CORE_IH_I2CM_STAT0, ~0); + hdmi_write_reg(core->base, HDMI_CORE_IH_MUTE_I2CM_STAT0, ~0); + hdmi_write_reg(core->base, HDMI_CORE_CEC_CTRL, 0); + hdmi_write_reg(core->base, HDMI_CORE_IH_CEC_STAT0, ~0); + hdmi_write_reg(core->base, HDMI_CORE_CEC_LOCK, 0); + hdmi_write_reg(core->base, HDMI_CORE_CEC_TX_CNT, 0); + + hdmi5_cec_log_addr(adap, CEC_LOG_ADDR_INVALID); + + /* Enable HDMI core interrupts */ + hdmi_wp_set_irqenable(core->wp, HDMI_IRQ_CORE); + + irqs = CEC_STAT_ERROR_INIT | CEC_STAT_NACK | CEC_STAT_EOM | + CEC_STAT_DONE; + hdmi_write_reg(core->base, HDMI_CORE_CEC_MASK, ~irqs); + hdmi_write_reg(core->base, HDMI_CORE_IH_MUTE_CEC_STAT0, ~irqs); + + return 0; +} + +static const struct cec_adap_ops hdmi5_cec_ops = { + .adap_enable = hdmi5_cec_enable, + .adap_log_addr = hdmi5_cec_log_addr, + .adap_transmit = hdmi5_cec_transmit, +}; + +void hdmi5_cec_set_phys_addr(struct hdmi_core_data *core, struct edid *edid) +{ + cec_s_phys_addr_from_edid(core->adap, edid); +} + +int hdmi5_cec_init(struct platform_device *pdev, struct hdmi_core_data *core, + struct hdmi_wp_data *wp, struct drm_connector *conn) +{ + const u32 caps = CEC_CAP_DEFAULTS | CEC_CAP_CONNECTOR_INFO; + struct cec_connector_info conn_info; + int ret; + + core->cec_clk = devm_clk_get(&pdev->dev, "cec"); + if (IS_ERR(core->cec_clk)) + return PTR_ERR(core->cec_clk); + ret = clk_prepare_enable(core->cec_clk); + if (ret) + return ret; + + core->adap = cec_allocate_adapter(&hdmi5_cec_ops, core, + "omap5", caps, CEC_MAX_LOG_ADDRS); + ret = PTR_ERR_OR_ZERO(core->adap); + if (ret < 0) + goto disable_clk; + + cec_fill_conn_info_from_drm(&conn_info, conn); + cec_s_conn_info(core->adap, &conn_info); + core->wp = wp; + + ret = cec_register_adapter(core->adap, &pdev->dev); + if (ret < 0) + goto delete_adap; + + return 0; + +delete_adap: + cec_delete_adapter(core->adap); +disable_clk: + clk_disable_unprepare(core->cec_clk); + core->adap = NULL; + return ret; +} + +void hdmi5_cec_uninit(struct hdmi_core_data *core) +{ + if (IS_ERR_OR_NULL(core->adap)) + return; + + cec_unregister_adapter(core->adap); + clk_disable_unprepare(core->cec_clk); +} diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5_cec.h b/drivers/gpu/drm/omapdrm/dss/hdmi5_cec.h new file mode 100644 index 000000000000..d7732f9a675a --- /dev/null +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5_cec.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * HDMI header definition for OMAP5 HDMI CEC IP + * + * Copyright 2019 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _HDMI5_CEC_H_ +#define _HDMI5_CEC_H_ + +/* HDMI CEC funcs */ +#ifdef CONFIG_OMAP5_DSS_HDMI_CEC +void hdmi5_cec_set_phys_addr(struct hdmi_core_data *core, + struct edid *edid); +void hdmi5_cec_irq(struct hdmi_core_data *core, unsigned int stat); +int hdmi5_cec_init(struct platform_device *pdev, struct hdmi_core_data *core, + struct hdmi_wp_data *wp, struct drm_connector *conn); +void hdmi5_cec_uninit(struct hdmi_core_data *core); +#else +static inline void hdmi5_cec_set_phys_addr(struct hdmi_core_data *core, + struct edid *edid) +{ +} + +static inline void hdmi5_cec_irq(struct hdmi_core_data *core, unsigned int stat) +{ +} + +static inline int hdmi5_cec_init(struct platform_device *pdev, + struct hdmi_core_data *core, + struct hdmi_wp_data *wp, + struct drm_connector *conn) +{ + return 0; +} + +static inline void hdmi5_cec_uninit(struct hdmi_core_data *core) +{ +} +#endif + +#endif diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5_core.c b/drivers/gpu/drm/omapdrm/dss/hdmi5_core.c index 6cc2ad7a420c..de57384ad159 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5_core.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5_core.c @@ -22,6 +22,7 @@ #include <sound/asoundef.h>
#include "hdmi5_core.h" +#include "hdmi5_cec.h"
void hdmi5_core_ddc_init(struct hdmi_core_data *core) { @@ -229,6 +230,19 @@ void hdmi5_core_dump(struct hdmi_core_data *core, struct seq_file *s) DUMPCORE(HDMI_CORE_I2CM_FS_SCL_LCNT_1_ADDR); DUMPCORE(HDMI_CORE_I2CM_FS_SCL_LCNT_0_ADDR); DUMPCORE(HDMI_CORE_I2CM_SDA_HOLD_ADDR); + + DUMPCORE(HDMI_CORE_IH_CEC_STAT0); + DUMPCORE(HDMI_CORE_IH_MUTE_CEC_STAT0); + DUMPCORE(HDMI_CORE_CEC_CTRL); + DUMPCORE(HDMI_CORE_CEC_MASK); + DUMPCORE(HDMI_CORE_CEC_ADDR_L); + DUMPCORE(HDMI_CORE_CEC_ADDR_H); + DUMPCORE(HDMI_CORE_CEC_TX_CNT); + DUMPCORE(HDMI_CORE_CEC_RX_CNT); + DUMPCORE(HDMI_CORE_CEC_TX_DATA0); + DUMPCORE(HDMI_CORE_CEC_RX_DATA0); + DUMPCORE(HDMI_CORE_CEC_LOCK); + DUMPCORE(HDMI_CORE_CEC_WKUPCTRL); }
static void hdmi_core_init(struct hdmi_core_vid_config *video_cfg, @@ -513,8 +527,6 @@ static void hdmi_core_mask_interrupts(struct hdmi_core_data *core) REG_FLD_MOD(base, HDMI_CORE_AUD_INT, 0x3, 3, 2); REG_FLD_MOD(base, HDMI_CORE_AUD_GP_MASK, 0x3, 1, 0);
- REG_FLD_MOD(base, HDMI_CORE_CEC_MASK, 0x7f, 6, 0); - REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 6, 6); REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 2, 2); REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 2, 2); @@ -532,8 +544,6 @@ static void hdmi_core_mask_interrupts(struct hdmi_core_data *core)
REG_FLD_MOD(base, HDMI_CORE_IH_AS_STAT0, 0x7, 2, 0);
- REG_FLD_MOD(base, HDMI_CORE_IH_CEC_STAT0, 0x7f, 6, 0); - REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0x3, 1, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0); @@ -548,14 +558,24 @@ static void hdmi_core_enable_interrupts(struct hdmi_core_data *core) int hdmi5_core_handle_irqs(struct hdmi_core_data *core) { void __iomem *base = core->base; + unsigned int stat = hdmi_read_reg(base, HDMI_CORE_IH_CEC_STAT0); + + if (stat) { + hdmi_write_reg(base, HDMI_CORE_IH_CEC_STAT0, stat); + hdmi5_cec_irq(core, stat); + }
+ /* + * Clear all possible IRQ_CORE interrupts except for + * HDMI_CORE_IH_I2CM_STAT0 (that interrupt is muted and + * is handled by polling elsewhere) and HDMI_CORE_IH_CEC_STAT0 + * which is handled by the CEC code above. + */ REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT0, 0xff, 7, 0); REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT1, 0xff, 7, 0); REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT2, 0xff, 7, 0); REG_FLD_MOD(base, HDMI_CORE_IH_AS_STAT0, 0xff, 7, 0); REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0); - REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0xff, 7, 0); - REG_FLD_MOD(base, HDMI_CORE_IH_CEC_STAT0, 0xff, 7, 0); REG_FLD_MOD(base, HDMI_CORE_IH_VP_STAT0, 0xff, 7, 0); REG_FLD_MOD(base, HDMI_CORE_IH_I2CMPHY_STAT0, 0xff, 7, 0);
@@ -879,5 +899,8 @@ int hdmi5_core_init(struct platform_device *pdev, struct hdmi_core_data *core) if (IS_ERR(core->base)) return PTR_ERR(core->base);
+ REG_FLD_MOD(core->base, HDMI_CORE_CEC_MASK, 0x7f, 6, 0); + REG_FLD_MOD(core->base, HDMI_CORE_IH_CEC_STAT0, 0x7f, 6, 0); + return 0; } diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h b/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h index 070cbf5fb57d..6bcef70a87cc 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h @@ -30,8 +30,18 @@ #define HDMI_CORE_IH_PHY_STAT0 0x00410 #define HDMI_CORE_IH_I2CM_STAT0 0x00414 #define HDMI_CORE_IH_CEC_STAT0 0x00418 +#define CEC_STAT_DONE BIT(0) +#define CEC_STAT_EOM BIT(1) +#define CEC_STAT_NACK BIT(2) +#define CEC_STAT_ARBLOST BIT(3) +#define CEC_STAT_ERROR_INIT BIT(4) +#define CEC_STAT_ERROR_FOLL BIT(5) +#define CEC_STAT_WAKEUP BIT(6) + #define HDMI_CORE_IH_VP_STAT0 0x0041C #define HDMI_CORE_IH_I2CMPHY_STAT0 0x00420 +#define HDMI_CORE_IH_MUTE_I2CM_STAT0 0x00614 +#define HDMI_CORE_IH_MUTE_CEC_STAT0 0x00618 #define HDMI_CORE_IH_MUTE 0x007FC
/* HDMI Video Sampler */ @@ -233,9 +243,6 @@ /* HDMI HDCP */ #define HDMI_CORE_HDCP_MASK 0x14020
-/* HDMI CEC */ -#define HDMI_CORE_CEC_MASK 0x17408 - /* HDMI I2C Master */ #define HDMI_CORE_I2CM_SLAVE 0x157C8 #define HDMI_CORE_I2CM_ADDRESS 0x157CC @@ -258,6 +265,24 @@ #define HDMI_CORE_I2CM_FS_SCL_LCNT_0_ADDR 0x15810 #define HDMI_CORE_I2CM_SDA_HOLD_ADDR 0x15814
+/* HDMI CEC */ +#define HDMI_CORE_CEC_CTRL 0x153C8 +#define CEC_CTRL_START BIT(0) +#define CEC_CTRL_FRAME_TYP (3 << 1) +#define CEC_CTRL_RETRY (0 << 1) +#define CEC_CTRL_NORMAL (1 << 1) +#define CEC_CTRL_IMMED (2 << 1) + +#define HDMI_CORE_CEC_MASK 0x153D0 +#define HDMI_CORE_CEC_ADDR_L 0x153DC +#define HDMI_CORE_CEC_ADDR_H 0x153E0 +#define HDMI_CORE_CEC_TX_CNT 0x153E4 +#define HDMI_CORE_CEC_RX_CNT 0x153E8 +#define HDMI_CORE_CEC_TX_DATA0 0x15408 +#define HDMI_CORE_CEC_RX_DATA0 0x15448 +#define HDMI_CORE_CEC_LOCK 0x15488 +#define HDMI_CORE_CEC_WKUPCTRL 0x1548C + enum hdmi_core_packet_mode { HDMI_PACKETMODERESERVEDVALUE = 0, HDMI_PACKETMODE24BITPERPIXEL = 4, @@ -290,6 +315,8 @@ int hdmi5_core_handle_irqs(struct hdmi_core_data *core); void hdmi5_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp, struct hdmi_config *cfg); int hdmi5_core_init(struct platform_device *pdev, struct hdmi_core_data *core); +int hdmi5_core_enable(struct omap_hdmi *hdmi); +void hdmi5_core_disable(struct omap_hdmi *hdmi);
int hdmi5_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp, struct omap_dss_audio *audio, u32 pclk);