On 08/05/17 14:32, Laurent Pinchart wrote:
> debugfs code is spread between the core and dss drivers. In preparation
> for removal of the core driver, move it all to the dss driver.
>
> Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> ---
> drivers/gpu/drm/omapdrm/dss/core.c | 80
> --------------------------------------
> drivers/gpu/drm/omapdrm/dss/dss.c | 77 ++++++++++++++++++++++++++++++++++--
> drivers/gpu/drm/omapdrm/dss/dss.h | 13 +++++--
> 3 files changed, 84 insertions(+), 86 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/core.c
> b/drivers/gpu/drm/omapdrm/dss/core.c
> index ff6357df0588..dc2147ec78f6 100644
> --- a/drivers/gpu/drm/omapdrm/dss/core.c
> +++ b/drivers/gpu/drm/omapdrm/dss/core.c
> @@ -27,8 +27,6 @@
> #include <linux/clk.h>
> #include <linux/err.h>
> #include <linux/platform_device.h>
> -#include <linux/seq_file.h>
> -#include <linux/debugfs.h>
> #include <linux/io.h>
> #include <linux/device.h>
> #include <linux/regulator/consumer.h>
> @@ -50,72 +48,6 @@ enum omapdss_version omapdss_get_version(void)
> }
> EXPORT_SYMBOL(omapdss_get_version);
>
> -#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
> -static int dss_debug_show(struct seq_file *s, void *unused)
> -{
> - void (*func)(struct seq_file *) = s->private;
> - func(s);
> - return 0;
> -}
> -
> -static int dss_debug_open(struct inode *inode, struct file *file)
> -{
> - return single_open(file, dss_debug_show, inode->i_private);
> -}
> -
> -static const struct file_operations dss_debug_fops = {
> - .open = dss_debug_open,
> - .read = seq_read,
> - .llseek = seq_lseek,
> - .release = single_release,
> -};
> -
> -static struct dentry *dss_debugfs_dir;
> -
> -static int dss_initialize_debugfs(void)
> -{
> - dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
> - if (IS_ERR(dss_debugfs_dir)) {
> - int err = PTR_ERR(dss_debugfs_dir);
> - dss_debugfs_dir = NULL;
> - return err;
> - }
> -
> - debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
> - &dss_debug_dump_clocks, &dss_debug_fops);
> -
> - return 0;
> -}
> -
> -static void dss_uninitialize_debugfs(void)
> -{
> - if (dss_debugfs_dir)
> - debugfs_remove_recursive(dss_debugfs_dir);
> -}
> -
> -int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file
> *))
> -{
> - struct dentry *d;
> -
> - d = debugfs_create_file(name, S_IRUGO, dss_debugfs_dir,
> - write, &dss_debug_fops);
> -
> - return PTR_ERR_OR_ZERO(d);
> -}
> -#else /* CONFIG_OMAP2_DSS_DEBUGFS */
> -static inline int dss_initialize_debugfs(void)
> -{
> - return 0;
> -}
> -static inline void dss_uninitialize_debugfs(void)
> -{
> -}
> -int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file
> *))
> -{
> - return 0;
> -}
> -#endif /* CONFIG_OMAP2_DSS_DEBUGFS */
> -
> /* PLATFORM DEVICE */
>
> static void dss_disable_all_devices(void)
> @@ -133,27 +65,15 @@ static void dss_disable_all_devices(void)
>
> static int __init omap_dss_probe(struct platform_device *pdev)
> {
> - int r;
> -
> core.pdev = pdev;
>
> dss_features_init(omapdss_get_version());
>
> - r = dss_initialize_debugfs();
> - if (r)
> - goto err_debugfs;
> -
> return 0;
> -
> -err_debugfs:
> -
> - return r;
> }
>
> static int omap_dss_remove(struct platform_device *pdev)
> {
> - dss_uninitialize_debugfs();
> -
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c
> b/drivers/gpu/drm/omapdrm/dss/dss.c
> index 4fdb77dd90b8..618fd4dcbd5a 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.c
> @@ -22,6 +22,7 @@
>
> #define DSS_SUBSYS_NAME "DSS"
>
> +#include <linux/debugfs.h>
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/io.h>
> @@ -896,7 +897,7 @@ void dss_runtime_put(void)
>
> /* DEBUGFS */
> #if defined(CONFIG_OMAP2_DSS_DEBUGFS)
> -void dss_debug_dump_clocks(struct seq_file *s)
> +static void dss_debug_dump_clocks(struct seq_file *s)
> {
> dss_dump_clocks(s);
> dispc_dump_clocks(s);
> @@ -904,8 +905,69 @@ void dss_debug_dump_clocks(struct seq_file *s)
> dsi_dump_clocks(s);
> #endif
> }
> -#endif
>
> +static int dss_debug_show(struct seq_file *s, void *unused)
> +{
> + void (*func)(struct seq_file *) = s->private;
> +
> + func(s);
> + return 0;
> +}
> +
> +static int dss_debug_open(struct inode *inode, struct file *file)
> +{
> + return single_open(file, dss_debug_show, inode->i_private);
> +}
> +
> +static const struct file_operations dss_debug_fops = {
> + .open = dss_debug_open,
> + .read = seq_read,
> + .llseek = seq_lseek,
> + .release = single_release,
> +};
> +
> +static struct dentry *dss_debugfs_dir;
> +
> +static int dss_initialize_debugfs(void)
> +{
> + dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
> + if (IS_ERR(dss_debugfs_dir)) {
> + int err = PTR_ERR(dss_debugfs_dir);
> +
> + dss_debugfs_dir = NULL;
> + return err;
> + }
> +
> + debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
> + &dss_debug_dump_clocks, &dss_debug_fops);
> +
> + return 0;
> +}
> +
> +static void dss_uninitialize_debugfs(void)
> +{
> + if (dss_debugfs_dir)
> + debugfs_remove_recursive(dss_debugfs_dir);
> +}
> +
> +int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file
> *))
> +{
> + struct dentry *d;
> +
> + d = debugfs_create_file(name, S_IRUGO, dss_debugfs_dir,
> + write, &dss_debug_fops);
> +
> + return PTR_ERR_OR_ZERO(d);
> +}
> +#else /* CONFIG_OMAP2_DSS_DEBUGFS */
> +static inline int dss_initialize_debugfs(void)
> +{
> + return 0;
> +}
> +static inline void dss_uninitialize_debugfs(void)
> +{
> +}
> +#endif /* CONFIG_OMAP2_DSS_DEBUGFS */
>
> static const struct dss_ops dss_ops_omap2_omap3 = {
> .dpi_select_source = &dss_dpi_select_source_omap2_omap3,
> @@ -1334,12 +1396,18 @@ static int dss_probe(struct platform_device *pdev)
> else
> dss.feat = of_match_device(dss_of_match, &pdev->dev)->data;
>
> + r = dss_initialize_debugfs();
> + if (r)
> + return r;
> +
> /* add all the child devices as components */
> device_for_each_child(&pdev->dev, &match, dss_add_child_component);
>
> r = component_master_add_with_match(&pdev->dev, &dss_component_ops,
> match);
> - if (r)
> + if (r) {
> + dss_initialize_debugfs();
Uninitialize.
> return r;
> + }
>
> return 0;
> }
> @@ -1347,6 +1415,9 @@ static int dss_probe(struct platform_device *pdev)
> static int dss_remove(struct platform_device *pdev)
> {
> component_master_del(&pdev->dev, &dss_component_ops);
> +
> + dss_uninitialize_debugfs();
> +
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h
> b/drivers/gpu/drm/omapdrm/dss/dss.h
> index 1ef7c0e75d4c..eca7d731f5c8 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.h
> @@ -236,8 +236,6 @@ static inline int dss_set_min_bus_tput(struct device
> *dev, unsigned long tput)
> return 0;
> }
>
> -int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file
> *));
> -
> static inline bool dss_mgr_is_lcd(enum omap_channel id)
> {
> if (id == OMAP_DSS_CHANNEL_LCD || id == OMAP_DSS_CHANNEL_LCD2 ||
> @@ -248,6 +246,16 @@ static inline bool dss_mgr_is_lcd(enum omap_channel id)
> }
>
> /* DSS */
> +#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
> +int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file
> *));
> +#else
> +static inline int dss_debugfs_create_file(const char *name,
> + void (*write)(struct seq_file *))
> +{
> + return 0;
> +}
> +#endif /* CONFIG_OMAP2_DSS_DEBUGFS */
> +
> int dss_init_platform_driver(void) __init;
> void dss_uninit_platform_driver(void);
>
> @@ -271,7 +279,6 @@ struct device_node *dss_of_port_get_parent_device(struct
> device_node *port);
> u32 dss_of_port_get_port_number(struct device_node *port);
>
> #if defined(CONFIG_OMAP2_DSS_DEBUGFS)
> -void dss_debug_dump_clocks(struct seq_file *s);
> #endif
Looks like the #if and #endif can be removed too.
Tomi
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