From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> Add CEC notifier support to the HDMI bridge driver, so that the CEC part of the IP can receive its physical address. Tested-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Acked-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> [narmstrong: added kconfig tweak to get the right modules dependencies] Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> --- drivers/gpu/drm/bridge/synopsys/Kconfig | 1 + drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) Hi Archit, Hans, This is second repost of Russell's patch from his dw-hdmi CEC patchset. Latest russell's thread : https://lkml.kernel.org/r/E1dFi3E-0004lh-Pu@xxxxxxxxxxxxxxxxxxxxxx Previous repost : https://lkml.kernel.org/r/1499337186-24429-1-git-send-email-narmstrong@xxxxxxxxxxxx It includes the Kconfig tweak to ensure the correct modules dependencies. Neil diff --git a/drivers/gpu/drm/bridge/synopsys/Kconfig b/drivers/gpu/drm/bridge/synopsys/Kconfig index 53e78d0..351db00 100644 --- a/drivers/gpu/drm/bridge/synopsys/Kconfig +++ b/drivers/gpu/drm/bridge/synopsys/Kconfig @@ -2,6 +2,7 @@ config DRM_DW_HDMI tristate select DRM_KMS_HELPER select REGMAP_MMIO + select CEC_CORE if CEC_NOTIFIER config DRM_DW_HDMI_AHB_AUDIO tristate "Synopsys Designware AHB Audio interface" diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index ead1124..9c03846 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -33,6 +33,8 @@ #include <uapi/linux/media-bus-format.h> #include <uapi/linux/videodev2.h> +#include <media/cec-notifier.h> + #include "dw-hdmi.h" #include "dw-hdmi-audio.h" @@ -175,6 +177,8 @@ struct dw_hdmi { struct regmap *regm; void (*enable_audio)(struct dw_hdmi *hdmi); void (*disable_audio)(struct dw_hdmi *hdmi); + + struct cec_notifier *cec_notifier; }; #define HDMI_IH_PHY_STAT0_RX_SENSE \ @@ -1896,6 +1900,7 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector) hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid); hdmi->sink_has_audio = drm_detect_monitor_audio(edid); drm_mode_connector_update_edid_property(connector, edid); + cec_notifier_set_phys_addr_from_edid(hdmi->cec_notifier, edid); ret = drm_add_edid_modes(connector, edid); /* Store the ELD */ drm_edid_to_eld(connector, edid); @@ -2077,6 +2082,10 @@ void __dw_hdmi_setup_rx_sense(struct dw_hdmi *hdmi, bool hpd, bool rx_sense) dw_hdmi_update_phy_mask(hdmi); } mutex_unlock(&hdmi->mutex); + + if (!rx_sense && !hpd) + cec_notifier_set_phys_addr(hdmi->cec_notifier, + CEC_PHYS_ADDR_INVALID); } void dw_hdmi_setup_rx_sense(struct device *dev, bool hpd, bool rx_sense) @@ -2376,6 +2385,12 @@ static int dw_hdmi_detect_phy(struct dw_hdmi *hdmi) if (ret) goto err_iahb; + hdmi->cec_notifier = cec_notifier_get(dev); + if (!hdmi->cec_notifier) { + ret = -ENOMEM; + goto err_iahb; + } + /* * To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator * N and cts values before enabling phy @@ -2452,6 +2467,9 @@ static int dw_hdmi_detect_phy(struct dw_hdmi *hdmi) hdmi->ddc = NULL; } + if (hdmi->cec_notifier) + cec_notifier_put(hdmi->cec_notifier); + clk_disable_unprepare(hdmi->iahb_clk); err_isfr: clk_disable_unprepare(hdmi->isfr_clk); -- 1.9.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
