LinuxLists.cc - [PATCH 1/2] drm/msm: simplify getting .driver

2019-03-19 16:38:55

Subject: [PATCH 1/2] drm/msm: simplify getting .driver_data

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <[email protected]>
---

Build tested only. buildbot is happy.

drivers/gpu/drm/msm/adreno/adreno_device.c | 6 ++----
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 13 +++++--------
drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 6 ++----
drivers/gpu/drm/msm/dsi/dsi_host.c | 6 ++----
drivers/gpu/drm/msm/msm_drv.c | 3 +--
5 files changed, 12 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 714ed6505e47..13802af8294c 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -412,16 +412,14 @@ static const struct of_device_id dt_match[] = {
#ifdef CONFIG_PM
static int adreno_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct msm_gpu *gpu = platform_get_drvdata(pdev);
+ struct msm_gpu *gpu = dev_get_drvdata(dev);

return gpu->funcs->pm_resume(gpu);
}

static int adreno_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct msm_gpu *gpu = platform_get_drvdata(pdev);
+ struct msm_gpu *gpu = dev_get_drvdata(dev);

return gpu->funcs->pm_suspend(gpu);
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 885bf88afa3e..0154eb9b343f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1036,16 +1036,15 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)

static void dpu_unbind(struct device *dev, struct device *master, void *data)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
+ struct dpu_kms *dpu_kms = dev_get_drvdata(dev);
struct dss_module_power *mp = &dpu_kms->mp;

msm_dss_put_clk(mp->clk_config, mp->num_clk);
- devm_kfree(&pdev->dev, mp->clk_config);
+ devm_kfree(dev, mp->clk_config);
mp->num_clk = 0;

if (dpu_kms->rpm_enabled)
- pm_runtime_disable(&pdev->dev);
+ pm_runtime_disable(dev);
}

static const struct component_ops dpu_ops = {
@@ -1067,8 +1066,7 @@ static int dpu_dev_remove(struct platform_device *pdev)
static int __maybe_unused dpu_runtime_suspend(struct device *dev)
{
int rc = -1;
- struct platform_device *pdev = to_platform_device(dev);
- struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
+ struct dpu_kms *dpu_kms = dev_get_drvdata(dev);
struct drm_device *ddev;
struct dss_module_power *mp = &dpu_kms->mp;

@@ -1088,8 +1086,7 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev)
static int __maybe_unused dpu_runtime_resume(struct device *dev)
{
int rc = -1;
- struct platform_device *pdev = to_platform_device(dev);
- struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
+ struct dpu_kms *dpu_kms = dev_get_drvdata(dev);
struct drm_encoder *encoder;
struct drm_device *ddev;
struct dss_module_power *mp = &dpu_kms->mp;
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 97179bec8902..8f7a01d7a663 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -1063,8 +1063,7 @@ static int mdp5_dev_remove(struct platform_device *pdev)

static __maybe_unused int mdp5_runtime_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
+ struct mdp5_kms *mdp5_kms = dev_get_drvdata(dev);

DBG("");

@@ -1073,8 +1072,7 @@ static __maybe_unused int mdp5_runtime_suspend(struct device *dev)

static __maybe_unused int mdp5_runtime_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
+ struct mdp5_kms *mdp5_kms = dev_get_drvdata(dev);

DBG("");

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 610183db1daf..4a158c41ef30 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -485,8 +485,7 @@ static void dsi_bus_clk_disable(struct msm_dsi_host *msm_host)

int msm_dsi_runtime_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct msm_dsi *msm_dsi = platform_get_drvdata(pdev);
+ struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
struct mipi_dsi_host *host = msm_dsi->host;
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);

@@ -500,8 +499,7 @@ int msm_dsi_runtime_suspend(struct device *dev)

int msm_dsi_runtime_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct msm_dsi *msm_dsi = platform_get_drvdata(pdev);
+ struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
struct mipi_dsi_host *host = msm_dsi->host;
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 0bdd93648761..071ad87ce44e 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -251,8 +251,7 @@ static int vblank_ctrl_queue_work(struct msm_drm_private *priv,

static int msm_drm_uninit(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct drm_device *ddev = platform_get_drvdata(pdev);
+ struct drm_device *ddev = dev_get_drvdata(dev);
struct msm_drm_private *priv = ddev->dev_private;
struct msm_kms *kms = priv->kms;
struct msm_mdss *mdss = priv->mdss;
--
2.11.0

2019-03-19 16:39:51

by Wolfram Sang

[permalink] [raw]

Subject: [PATCH 2/2] drm/omap: simplify getting .driver_data

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <[email protected]>
---

Build tested only. buildbot is happy.

drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 18 ++++++------------
1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
index 29692a5217c5..88d4b0c60689 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
@@ -412,8 +412,7 @@ static const struct backlight_ops dsicm_bl_ops = {
static ssize_t dsicm_num_errors_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
struct omap_dss_device *src = ddata->dssdev.src;
u8 errors = 0;
int r;
@@ -444,8 +443,7 @@ static ssize_t dsicm_num_errors_show(struct device *dev,
static ssize_t dsicm_hw_revision_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
struct omap_dss_device *src = ddata->dssdev.src;
u8 id1, id2, id3;
int r;
@@ -476,8 +474,7 @@ static ssize_t dsicm_store_ulps(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
struct omap_dss_device *src = ddata->dssdev.src;
unsigned long t;
int r;
@@ -511,8 +508,7 @@ static ssize_t dsicm_show_ulps(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
unsigned int t;

mutex_lock(&ddata->lock);
@@ -526,8 +522,7 @@ static ssize_t dsicm_store_ulps_timeout(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
struct omap_dss_device *src = ddata->dssdev.src;
unsigned long t;
int r;
@@ -558,8 +553,7 @@ static ssize_t dsicm_show_ulps_timeout(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
unsigned int t;

mutex_lock(&ddata->lock);
--
2.11.0

2019-03-22 08:19:07

by Kieran Bingham

[permalink] [raw]

Subject: Re: [PATCH 1/2] drm/msm: simplify getting .driver_data

Hi Wolfram,

Thank you for the patch,

On 19/03/2019 16:36, Wolfram Sang wrote:
> We should get 'driver_data' from 'struct device' directly. Going via
> platform_device is an unneeded step back and forth.
>
> Signed-off-by: Wolfram Sang <[email protected]>

This looks good to me.

Reviewed-by: Kieran Bingham <[email protected]>

> ---
>
> Build tested only. buildbot is happy.
>
> drivers/gpu/drm/msm/adreno/adreno_device.c | 6 ++----
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 13 +++++--------
> drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 6 ++----
> drivers/gpu/drm/msm/dsi/dsi_host.c | 6 ++----
> drivers/gpu/drm/msm/msm_drv.c | 3 +--
> 5 files changed, 12 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index 714ed6505e47..13802af8294c 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -412,16 +412,14 @@ static const struct of_device_id dt_match[] = {
> #ifdef CONFIG_PM
> static int adreno_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct msm_gpu *gpu = platform_get_drvdata(pdev);
> + struct msm_gpu *gpu = dev_get_drvdata(dev);

Nice simplification :-)

Do you catch these with Coccinelle?

>
> return gpu->funcs->pm_resume(gpu);
> }
>
> static int adreno_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct msm_gpu *gpu = platform_get_drvdata(pdev);
> + struct msm_gpu *gpu = dev_get_drvdata(dev);
>
> return gpu->funcs->pm_suspend(gpu);
> }
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 885bf88afa3e..0154eb9b343f 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -1036,16 +1036,15 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
>
> static void dpu_unbind(struct device *dev, struct device *master, void *data)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
> + struct dpu_kms *dpu_kms = dev_get_drvdata(dev);
> struct dss_module_power *mp = &dpu_kms->mp;
>
> msm_dss_put_clk(mp->clk_config, mp->num_clk);
> - devm_kfree(&pdev->dev, mp->clk_config);
> + devm_kfree(dev, mp->clk_config);

Using the dev to get the pdev to get the dev :-D

> mp->num_clk = 0;
>
> if (dpu_kms->rpm_enabled)
> - pm_runtime_disable(&pdev->dev);
> + pm_runtime_disable(dev);
> }
>
> static const struct component_ops dpu_ops = {
> @@ -1067,8 +1066,7 @@ static int dpu_dev_remove(struct platform_device *pdev)
> static int __maybe_unused dpu_runtime_suspend(struct device *dev)
> {
> int rc = -1;
> - struct platform_device *pdev = to_platform_device(dev);
> - struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
> + struct dpu_kms *dpu_kms = dev_get_drvdata(dev);
> struct drm_device *ddev;
> struct dss_module_power *mp = &dpu_kms->mp;
>
> @@ -1088,8 +1086,7 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev)
> static int __maybe_unused dpu_runtime_resume(struct device *dev)
> {
> int rc = -1;
> - struct platform_device *pdev = to_platform_device(dev);
> - struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
> + struct dpu_kms *dpu_kms = dev_get_drvdata(dev);
> struct drm_encoder *encoder;
> struct drm_device *ddev;
> struct dss_module_power *mp = &dpu_kms->mp;
> diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> index 97179bec8902..8f7a01d7a663 100644
> --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> @@ -1063,8 +1063,7 @@ static int mdp5_dev_remove(struct platform_device *pdev)
>
> static __maybe_unused int mdp5_runtime_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
> + struct mdp5_kms *mdp5_kms = dev_get_drvdata(dev);
>
> DBG("");
>
> @@ -1073,8 +1072,7 @@ static __maybe_unused int mdp5_runtime_suspend(struct device *dev)
>
> static __maybe_unused int mdp5_runtime_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
> + struct mdp5_kms *mdp5_kms = dev_get_drvdata(dev);
>
> DBG("");
>
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 610183db1daf..4a158c41ef30 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -485,8 +485,7 @@ static void dsi_bus_clk_disable(struct msm_dsi_host *msm_host)
>
> int msm_dsi_runtime_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct msm_dsi *msm_dsi = platform_get_drvdata(pdev);
> + struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
> struct mipi_dsi_host *host = msm_dsi->host;
> struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
>
> @@ -500,8 +499,7 @@ int msm_dsi_runtime_suspend(struct device *dev)
>
> int msm_dsi_runtime_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct msm_dsi *msm_dsi = platform_get_drvdata(pdev);
> + struct msm_dsi *msm_dsi = dev_get_drvdata(dev);
> struct mipi_dsi_host *host = msm_dsi->host;
> struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
>
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index 0bdd93648761..071ad87ce44e 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -251,8 +251,7 @@ static int vblank_ctrl_queue_work(struct msm_drm_private *priv,
>
> static int msm_drm_uninit(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct drm_device *ddev = platform_get_drvdata(pdev);
> + struct drm_device *ddev = dev_get_drvdata(dev);
> struct msm_drm_private *priv = ddev->dev_private;
> struct msm_kms *kms = priv->kms;
> struct msm_mdss *mdss = priv->mdss;
>

2019-03-22 08:23:09

by Kieran Bingham

[permalink] [raw]

Subject: Re: [PATCH 2/2] drm/omap: simplify getting .driver_data

2019-03-22 08:35:18

by Wolfram Sang

[permalink] [raw]

Subject: Re: [PATCH 1/2] drm/msm: simplify getting .driver_data

> > - struct platform_device *pdev = to_platform_device(dev);
> > - struct msm_gpu *gpu = platform_get_drvdata(pdev);
> > + struct msm_gpu *gpu = dev_get_drvdata(dev);
>
> Nice simplification :-)
>
> Do you catch these with Coccinelle?

Yes, the previous series had the script in the cover letter, but for
this small series, I thought it was too much. I haven't changed it since
then.

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