From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Abhinav Kumar <abhinavk@codeaurora.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Kalyan Thota <kalyan_t@codeaurora.org>,
Kuogee Hsieh <khsieh@codeaurora.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Stephen Boyd <swboyd@chromium.org>,
linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 1/7] drm/msm/dp: Remove global g_dp_display variable
Date: Tue, 5 Oct 2021 16:13:17 -0700 [thread overview]
Message-ID: <20211005231323.2663520-2-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <20211005231323.2663520-1-bjorn.andersson@linaro.org>
As the Qualcomm DisplayPort driver only supports a single instance of
the driver the commonly used struct dp_display is kept in a global
variable. As we introduce additional instances this obviously doesn't
work.
Replace this with a combination of existing references to adjacent
objects and drvdata.
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
Changes since v3:
- None
drivers/gpu/drm/msm/dp/dp_display.c | 80 ++++++++---------------------
1 file changed, 21 insertions(+), 59 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index fbe4c2cd52a3..5d3ee5ef07c2 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -27,7 +27,6 @@
#include "dp_audio.h"
#include "dp_debug.h"
-static struct msm_dp *g_dp_display;
#define HPD_STRING_SIZE 30
enum {
@@ -121,6 +120,13 @@ static const struct of_device_id dp_dt_match[] = {
{}
};
+static struct dp_display_private *dev_get_dp_display_private(struct device *dev)
+{
+ struct msm_dp *dp = dev_get_drvdata(dev);
+
+ return container_of(dp, struct dp_display_private, dp_display);
+}
+
static int dp_add_event(struct dp_display_private *dp_priv, u32 event,
u32 data, u32 delay)
{
@@ -197,15 +203,12 @@ static int dp_display_bind(struct device *dev, struct device *master,
void *data)
{
int rc = 0;
- struct dp_display_private *dp;
- struct drm_device *drm;
+ struct dp_display_private *dp = dev_get_dp_display_private(dev);
struct msm_drm_private *priv;
+ struct drm_device *drm;
drm = dev_get_drvdata(master);
- dp = container_of(g_dp_display,
- struct dp_display_private, dp_display);
-
dp->dp_display.drm_dev = drm;
priv = drm->dev_private;
priv->dp = &(dp->dp_display);
@@ -240,13 +243,10 @@ static int dp_display_bind(struct device *dev, struct device *master,
static void dp_display_unbind(struct device *dev, struct device *master,
void *data)
{
- struct dp_display_private *dp;
+ struct dp_display_private *dp = dev_get_dp_display_private(dev);
struct drm_device *drm = dev_get_drvdata(master);
struct msm_drm_private *priv = drm->dev_private;
- dp = container_of(g_dp_display,
- struct dp_display_private, dp_display);
-
dp_power_client_deinit(dp->power);
dp_aux_unregister(dp->aux);
priv->dp = NULL;
@@ -379,38 +379,17 @@ static void dp_display_host_deinit(struct dp_display_private *dp)
static int dp_display_usbpd_configure_cb(struct device *dev)
{
- int rc = 0;
- struct dp_display_private *dp;
-
- if (!dev) {
- DRM_ERROR("invalid dev\n");
- rc = -EINVAL;
- goto end;
- }
-
- dp = container_of(g_dp_display,
- struct dp_display_private, dp_display);
+ struct dp_display_private *dp = dev_get_dp_display_private(dev);
dp_display_host_init(dp, false);
- rc = dp_display_process_hpd_high(dp);
-end:
- return rc;
+ return dp_display_process_hpd_high(dp);
}
static int dp_display_usbpd_disconnect_cb(struct device *dev)
{
int rc = 0;
- struct dp_display_private *dp;
-
- if (!dev) {
- DRM_ERROR("invalid dev\n");
- rc = -EINVAL;
- return rc;
- }
-
- dp = container_of(g_dp_display,
- struct dp_display_private, dp_display);
+ struct dp_display_private *dp = dev_get_dp_display_private(dev);
dp_add_event(dp, EV_USER_NOTIFICATION, false, 0);
@@ -472,15 +451,7 @@ static int dp_display_usbpd_attention_cb(struct device *dev)
{
int rc = 0;
u32 sink_request;
- struct dp_display_private *dp;
-
- if (!dev) {
- DRM_ERROR("invalid dev\n");
- return -EINVAL;
- }
-
- dp = container_of(g_dp_display,
- struct dp_display_private, dp_display);
+ struct dp_display_private *dp = dev_get_dp_display_private(dev);
/* check for any test request issued by sink */
rc = dp_link_process_request(dp->link);
@@ -647,7 +618,7 @@ static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32 data)
DRM_DEBUG_DP("hpd_state=%d\n", state);
/* signal the disconnect event early to ensure proper teardown */
- dp_display_handle_plugged_change(g_dp_display, false);
+ dp_display_handle_plugged_change(&dp->dp_display, false);
/* enable HDP plug interrupt to prepare for next plugin */
dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK, true);
@@ -842,9 +813,7 @@ static int dp_display_prepare(struct msm_dp *dp)
static int dp_display_enable(struct dp_display_private *dp, u32 data)
{
int rc = 0;
- struct msm_dp *dp_display;
-
- dp_display = g_dp_display;
+ struct msm_dp *dp_display = &dp->dp_display;
DRM_DEBUG_DP("sink_count=%d\n", dp->link->sink_count);
if (dp_display->power_on) {
@@ -880,9 +849,7 @@ static int dp_display_post_enable(struct msm_dp *dp_display)
static int dp_display_disable(struct dp_display_private *dp, u32 data)
{
- struct msm_dp *dp_display;
-
- dp_display = g_dp_display;
+ struct msm_dp *dp_display = &dp->dp_display;
if (!dp_display->power_on)
return 0;
@@ -1237,14 +1204,13 @@ static int dp_display_probe(struct platform_device *pdev)
}
mutex_init(&dp->event_mutex);
- g_dp_display = &dp->dp_display;
/* Store DP audio handle inside DP display */
- g_dp_display->dp_audio = dp->audio;
+ dp->dp_display.dp_audio = dp->audio;
init_completion(&dp->audio_comp);
- platform_set_drvdata(pdev, g_dp_display);
+ platform_set_drvdata(pdev, &dp->dp_display);
rc = component_add(&pdev->dev, &dp_display_comp_ops);
if (rc) {
@@ -1257,10 +1223,7 @@ static int dp_display_probe(struct platform_device *pdev)
static int dp_display_remove(struct platform_device *pdev)
{
- struct dp_display_private *dp;
-
- dp = container_of(g_dp_display,
- struct dp_display_private, dp_display);
+ struct dp_display_private *dp = dev_get_dp_display_private(&pdev->dev);
dp_display_deinit_sub_modules(dp);
@@ -1315,8 +1278,7 @@ static int dp_pm_resume(struct device *dev)
else
dp->dp_display.is_connected = false;
- dp_display_handle_plugged_change(g_dp_display,
- dp->dp_display.is_connected);
+ dp_display_handle_plugged_change(dp_display, dp->dp_display.is_connected);
DRM_DEBUG_DP("After, sink_count=%d is_connected=%d core_inited=%d power_on=%d\n",
dp->link->sink_count, dp->dp_display.is_connected,
--
2.29.2
next prev parent reply other threads:[~2021-10-05 23:11 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-05 23:13 [PATCH v4 0/5] drm/msm/dp: Support multiple DP instances and add sc8180x Bjorn Andersson
2021-10-05 23:13 ` Bjorn Andersson [this message]
2021-10-05 23:13 ` [PATCH v4 2/7] drm/msm/dp: Modify prototype of encoder based API Bjorn Andersson
2021-10-05 23:13 ` [PATCH v4 3/7] drm/msm/dp: Allow specifying connector_type per controller Bjorn Andersson
2021-10-06 0:15 ` Stephen Boyd
2021-10-06 0:29 ` Stephen Boyd
2021-10-06 3:35 ` Bjorn Andersson
2021-10-06 0:31 ` Stephen Boyd
2021-10-05 23:13 ` [PATCH v4 4/7] drm/msm/dp: Allow attaching a drm_panel Bjorn Andersson
2021-10-06 0:35 ` [Freedreno] " abhinavk
2021-10-06 2:09 ` Bjorn Andersson
2021-10-06 3:09 ` abhinavk
2021-10-08 15:01 ` Doug Anderson
2021-10-05 23:13 ` [PATCH v4 5/7] drm/msm/dp: Support up to 3 DP controllers Bjorn Andersson
2021-10-06 0:43 ` Stephen Boyd
2021-10-06 1:43 ` Bjorn Andersson
2021-10-06 2:06 ` Stephen Boyd
2021-10-06 2:37 ` Bjorn Andersson
2021-10-06 4:26 ` Stephen Boyd
2021-10-06 6:10 ` Dmitry Baryshkov
2021-10-06 7:06 ` Stephen Boyd
2021-10-06 11:35 ` Dmitry Baryshkov
2021-10-06 17:07 ` Bjorn Andersson
2021-10-06 17:19 ` Stephen Boyd
2021-10-06 18:05 ` Bjorn Andersson
2021-10-06 18:59 ` Stephen Boyd
2021-10-06 20:39 ` Bjorn Andersson
2021-10-07 22:29 ` abhinavk
2021-10-06 17:19 ` Dmitry Baryshkov
2021-10-06 18:37 ` Bjorn Andersson
2021-10-05 23:13 ` [PATCH v4 6/7] dt-bindings: msm/dp: Add SC8180x compatibles Bjorn Andersson
2021-10-05 23:13 ` [PATCH v4 7/7] drm/msm/dp: Add sc8180x DP controllers Bjorn Andersson
2021-10-06 0:36 ` Stephen Boyd
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