On 20/05/2025 22:44, Dmitry Baryshkov wrote:
From: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Change the MSM HDMI driver to use generic PHY subsystem. Moving PHY
drivers allows better code sharing with the rest of the PHY system.
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@oss.qualcomm.com>
---
drivers/gpu/drm/msm/Makefile | 7 -
drivers/gpu/drm/msm/hdmi/hdmi.c | 58 +-
drivers/gpu/drm/msm/hdmi/hdmi.h | 80 +--
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 32 +-
drivers/gpu/drm/msm/hdmi/hdmi_phy.c | 225 -------
drivers/gpu/drm/msm/hdmi/hdmi_phy_8960.c | 51 --
drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c | 765 ----------------------
drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c | 769 -----------------------
drivers/gpu/drm/msm/hdmi/hdmi_phy_8x60.c | 141 -----
drivers/gpu/drm/msm/hdmi/hdmi_phy_8x74.c | 44 --
drivers/gpu/drm/msm/hdmi/hdmi_pll_8960.c | 458 --------------
drivers/phy/qualcomm/Kconfig | 21 +
drivers/phy/qualcomm/Makefile | 14 +
drivers/phy/qualcomm/phy-qcom-hdmi-28hpm.c | 71 +++
drivers/phy/qualcomm/phy-qcom-hdmi-28lpm.c | 441 +++++++++++++
drivers/phy/qualcomm/phy-qcom-hdmi-45nm.c | 186 ++++++
drivers/phy/qualcomm/phy-qcom-hdmi-preqmp.c | 212 +++++++
drivers/phy/qualcomm/phy-qcom-hdmi-preqmp.h | 81 +++
drivers/phy/qualcomm/phy-qcom-qmp-hdmi-base.c | 185 ++++++
drivers/phy/qualcomm/phy-qcom-qmp-hdmi-msm8996.c | 442 +++++++++++++
drivers/phy/qualcomm/phy-qcom-qmp-hdmi-msm8998.c | 495 +++++++++++++++
drivers/phy/qualcomm/phy-qcom-qmp-hdmi.h | 77 +++
22 files changed, 2259 insertions(+), 2596 deletions(-)
<snip>
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index
53a7ce8cc7bc7b6278eae2cbc42c3fda8d697f6d..1a00c26c1b40fc81623c9fb22ba25f448c27bffb
100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -5,6 +5,7 @@
*/
#include <linux/delay.h>
+#include <linux/phy/phy.h>
#include <drm/drm_bridge_connector.h>
#include <drm/drm_edid.h>
#include <drm/display/drm_hdmi_helper.h>
@@ -286,11 +287,12 @@ static void msm_hdmi_bridge_atomic_pre_enable(struct
drm_bridge *bridge,
{
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
- struct hdmi_phy *phy = hdmi->phy;
struct drm_encoder *encoder = bridge->encoder;
struct drm_connector *connector;
struct drm_connector_state *conn_state;
struct drm_crtc_state *crtc_state;
+ union phy_configure_opts phy_opts;
+ int ret;
DBG("power up");
@@ -304,7 +306,7 @@ static void msm_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
mutex_lock(&hdmi->state_mutex);
if (!hdmi->power_on) {
- msm_hdmi_phy_resource_enable(phy);
+ phy_init(hdmi->phy);
msm_hdmi_power_on(bridge);
hdmi->power_on = true;
}
@@ -315,7 +317,23 @@ static void msm_hdmi_bridge_atomic_pre_enable(struct
drm_bridge *bridge,
drm_atomic_helper_connector_hdmi_update_infoframes(connector, state);
- msm_hdmi_phy_powerup(phy, hdmi->pixclock);
+ phy_opts.hdmi.tmds_char_rate = conn_state->hdmi.tmds_char_rate;
+ phy_opts.hdmi.bpc = 8;
+ phy_configure(hdmi->phy, &phy_opts);
+
+ ret = phy_power_on(hdmi->phy);
+ if (WARN_ON(ret))
+ return;
+
+ if (hdmi->extp_clk) {
+ ret = clk_set_rate(hdmi->extp_clk, hdmi->pixclock);
+ if (ret)
+ DRM_DEV_ERROR(bridge->dev->dev, "failed to set extp clk
rate: %d\n", ret);
+
+ ret = clk_prepare_enable(hdmi->extp_clk);
+ if (ret)
+ DRM_DEV_ERROR(bridge->dev->dev, "failed to enable extp clk:
%d\n", ret);
+ }
Why do you again set the extp_clk since it's already set & enabled in
msm_hdmi_power_on() ?
Perhaps I missed a change but it's like that on next-20250521
msm_hdmi_set_mode(hdmi, true);
@@ -328,7 +346,6 @@ static void msm_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
{
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
- struct hdmi_phy *phy = hdmi->phy;
if (hdmi->hdcp_ctrl)
msm_hdmi_hdcp_off(hdmi->hdcp_ctrl);
@@ -339,14 +356,17 @@ static void msm_hdmi_bridge_atomic_post_disable(struct
drm_bridge *bridge,
mutex_lock(&hdmi->state_mutex);
msm_hdmi_set_mode(hdmi, hdmi->hpd_enabled);
- msm_hdmi_phy_powerdown(phy);
+ if (hdmi->extp_clk)
+ clk_disable_unprepare(hdmi->extp_clk);
+
+ phy_power_off(hdmi->phy);
if (hdmi->power_on) {
power_off(bridge);
hdmi->power_on = false;
if (hdmi->connector->display_info.is_hdmi)
msm_hdmi_audio_update(hdmi);
- msm_hdmi_phy_resource_disable(phy);
+ phy_exit(hdmi->phy);
}
mutex_unlock(&hdmi->state_mutex);
}
<snip>
Otherwise it looks fine even there's a lot to digest and hard to figure out
the exact changes done to the PHY drivers.
Neil
