[PATCH 22/48] drm: omapdrm: dss: Pass DSS private structure to runtime PM functions
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Fri Oct 13 14:59:18 UTC 2017
To prepare for the removal of the global variable storing DSS private
data, pass its pointer to the dss_runtime_{get,put}() functions.
As this requires getting hold of the DSS private structure in the
callers, we expose the structure through an opaque pointer that can be
retrieved through a new dss_device_get() function. The function
currently returns a pointer to the global data structure, and will later
be updated to get the pointer from device driver data when the DSS
private structure will be allocated dynamically.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
drivers/gpu/drm/omapdrm/dss/dsi.c | 7 +++++--
drivers/gpu/drm/omapdrm/dss/dss.c | 37 ++++++++++++++++++++-------------
drivers/gpu/drm/omapdrm/dss/dss.h | 13 ++++++++----
drivers/gpu/drm/omapdrm/dss/hdmi.h | 6 ++++--
drivers/gpu/drm/omapdrm/dss/hdmi4.c | 3 ++-
drivers/gpu/drm/omapdrm/dss/hdmi5.c | 3 ++-
drivers/gpu/drm/omapdrm/dss/hdmi_pll.c | 10 +++++----
drivers/gpu/drm/omapdrm/dss/video-pll.c | 12 ++++++-----
8 files changed, 58 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index a64e6a39ebf1..1dab308c9bc1 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -5333,7 +5333,8 @@ static const struct dss_pll_hw dss_omap5_dsi_pll_hw = {
.has_refsel = true,
};
-static int dsi_init_pll_data(struct platform_device *dsidev)
+static int dsi_init_pll_data(struct dss_device *dss,
+ struct platform_device *dsidev)
{
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
struct dss_pll *pll = &dsi->pll;
@@ -5352,6 +5353,7 @@ static int dsi_init_pll_data(struct platform_device *dsidev)
pll->base = dsi->pll_base;
pll->hw = dsi->data->pll_hw;
pll->ops = &dsi_pll_ops;
+ pll->dss = dss;
r = dss_pll_register(pll);
if (r)
@@ -5428,6 +5430,7 @@ static const struct soc_device_attribute dsi_soc_devices[] = {
static int dsi_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *dsidev = to_platform_device(dev);
+ struct dss_device *dss = dss_get_device(master);
const struct soc_device_attribute *soc;
const struct dsi_module_id_data *d;
u32 rev;
@@ -5538,7 +5541,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
if (r)
return r;
- dsi_init_pll_data(dsidev);
+ dsi_init_pll_data(dss, dsidev);
pm_runtime_enable(&dsidev->dev);
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
index b45641f6a844..a83277ebe1ef 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.c
+++ b/drivers/gpu/drm/omapdrm/dss/dss.c
@@ -93,7 +93,7 @@ struct dss_features {
bool has_lcd_clk_src;
};
-static struct {
+struct dss_device {
struct platform_device *pdev;
struct omap_drm_private drm;
@@ -125,7 +125,9 @@ static struct {
struct dss_pll *video1_pll;
struct dss_pll *video2_pll;
-} dss;
+};
+
+static struct dss_device dss;
static const char * const dss_generic_clk_source_names[] = {
[DSS_CLK_SRC_FCK] = "FCK",
@@ -382,7 +384,7 @@ static void dss_dump_clocks(struct seq_file *s)
const char *fclk_name;
unsigned long fclk_rate;
- if (dss_runtime_get())
+ if (dss_runtime_get(&dss))
return;
seq_printf(s, "- DSS -\n");
@@ -394,7 +396,7 @@ static void dss_dump_clocks(struct seq_file *s)
fclk_name,
fclk_rate);
- dss_runtime_put();
+ dss_runtime_put(&dss);
}
#endif
@@ -402,7 +404,7 @@ static int dss_dump_regs(struct seq_file *s, void *p)
{
#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r))
- if (dss_runtime_get())
+ if (dss_runtime_get(&dss))
return 0;
DUMPREG(DSS_REVISION);
@@ -416,7 +418,7 @@ static int dss_dump_regs(struct seq_file *s, void *p)
DUMPREG(DSS_SDI_STATUS);
}
- dss_runtime_put();
+ dss_runtime_put(&dss);
#undef DUMPREG
return 0;
}
@@ -889,27 +891,32 @@ static void dss_put_clocks(void)
clk_put(dss.parent_clk);
}
-int dss_runtime_get(void)
+int dss_runtime_get(struct dss_device *dss)
{
int r;
DSSDBG("dss_runtime_get\n");
- r = pm_runtime_get_sync(&dss.pdev->dev);
+ r = pm_runtime_get_sync(&dss->pdev->dev);
WARN_ON(r < 0);
return r < 0 ? r : 0;
}
-void dss_runtime_put(void)
+void dss_runtime_put(struct dss_device *dss)
{
int r;
DSSDBG("dss_runtime_put\n");
- r = pm_runtime_put_sync(&dss.pdev->dev);
+ r = pm_runtime_put_sync(&dss->pdev->dev);
WARN_ON(r < 0 && r != -ENOSYS && r != -EBUSY);
}
+struct dss_device *dss_get_device(struct device *dev)
+{
+ return &dss;
+}
+
/* DEBUGFS */
#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
static int dss_debug_dump_clocks(struct seq_file *s, void *p)
@@ -1297,13 +1304,15 @@ static int dss_video_pll_probe(struct platform_device *pdev)
}
if (of_property_match_string(np, "reg-names", "pll1") >= 0) {
- dss.video1_pll = dss_video_pll_init(pdev, 0, pll_regulator);
+ dss.video1_pll = dss_video_pll_init(&dss, pdev, 0,
+ pll_regulator);
if (IS_ERR(dss.video1_pll))
return PTR_ERR(dss.video1_pll);
}
if (of_property_match_string(np, "reg-names", "pll2") >= 0) {
- dss.video2_pll = dss_video_pll_init(pdev, 1, pll_regulator);
+ dss.video2_pll = dss_video_pll_init(&dss, pdev, 1,
+ pll_regulator);
if (IS_ERR(dss.video2_pll)) {
dss_video_pll_uninit(dss.video1_pll);
return PTR_ERR(dss.video2_pll);
@@ -1361,7 +1370,7 @@ static int dss_bind(struct device *dev)
pm_runtime_enable(&pdev->dev);
- r = dss_runtime_get();
+ r = dss_runtime_get(&dss);
if (r)
goto err_runtime_get;
@@ -1386,7 +1395,7 @@ static int dss_bind(struct device *dev)
rev = dss_read_reg(DSS_REVISION);
pr_info("OMAP DSS rev %d.%d\n", FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
- dss_runtime_put();
+ dss_runtime_put(&dss);
r = component_bind_all(&pdev->dev, NULL);
if (r)
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h
index e688e937da28..009b7ef200cd 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.h
+++ b/drivers/gpu/drm/omapdrm/dss/dss.h
@@ -29,6 +29,7 @@
struct dentry;
struct dss_debugfs_entry;
+struct dss_device;
struct platform_device;
struct seq_file;
@@ -198,6 +199,7 @@ struct dss_pll_hw {
struct dss_pll {
const char *name;
enum dss_pll_id id;
+ struct dss_device *dss;
struct clk *clkin;
struct regulator *regulator;
@@ -277,8 +279,10 @@ static inline void dss_debugfs_remove_file(struct dss_debugfs_entry *entry)
int dss_init_platform_driver(void) __init;
void dss_uninit_platform_driver(void);
-int dss_runtime_get(void);
-void dss_runtime_put(void);
+struct dss_device *dss_get_device(struct device *dev);
+
+int dss_runtime_get(struct dss_device *dss);
+void dss_runtime_put(struct dss_device *dss);
unsigned long dss_get_dispc_clk_rate(void);
unsigned long dss_get_max_fck_rate(void);
@@ -289,8 +293,9 @@ enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
const char *dss_get_clk_source_name(enum dss_clk_source clk_src);
/* DSS VIDEO PLL */
-struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
- struct regulator *regulator);
+struct dss_pll *dss_video_pll_init(struct dss_device *dss,
+ struct platform_device *pdev, int id,
+ struct regulator *regulator);
void dss_video_pll_uninit(struct dss_pll *pll);
void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi.h b/drivers/gpu/drm/omapdrm/dss/hdmi.h
index a66f8ff06c24..4dbc4f3d728c 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi.h
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi.h
@@ -29,6 +29,8 @@
#include "omapdss.h"
#include "dss.h"
+struct dss_device;
+
/* HDMI Wrapper */
#define HDMI_WP_REVISION 0x0
@@ -324,8 +326,8 @@ phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp);
/* HDMI PLL funcs */
void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
-int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
- struct hdmi_wp_data *wp);
+int hdmi_pll_init(struct dss_device *dss, struct platform_device *pdev,
+ struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
void hdmi_pll_uninit(struct hdmi_pll_data *hpll);
/* HDMI PHY funcs */
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
index ada4e3a9dba7..d84eba8440c8 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
@@ -717,6 +717,7 @@ static int hdmi_audio_register(struct device *dev)
static int hdmi4_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
+ struct dss_device *dss = dss_get_device(master);
int r;
int irq;
@@ -734,7 +735,7 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
if (r)
return r;
- r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
+ r = hdmi_pll_init(dss, pdev, &hdmi.pll, &hdmi.wp);
if (r)
return r;
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
index 00ea975b75f9..64cfed89c79b 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
@@ -719,6 +719,7 @@ static int hdmi_audio_register(struct device *dev)
static int hdmi5_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
+ struct dss_device *dss = dss_get_device(master);
int r;
int irq;
@@ -736,7 +737,7 @@ static int hdmi5_bind(struct device *dev, struct device *master, void *data)
if (r)
return r;
- r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
+ r = hdmi_pll_init(dss, pdev, &hdmi.pll, &hdmi.wp);
if (r)
return r;
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
index 55bee81f4dd5..9915354b66c9 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
@@ -128,7 +128,8 @@ static const struct dss_pll_hw dss_omap5_hdmi_pll_hw = {
.has_refsel = true,
};
-static int hdmi_init_pll_data(struct platform_device *pdev,
+static int hdmi_init_pll_data(struct dss_device *dss,
+ struct platform_device *pdev,
struct hdmi_pll_data *hpll)
{
struct dss_pll *pll = &hpll->pll;
@@ -145,6 +146,7 @@ static int hdmi_init_pll_data(struct platform_device *pdev,
pll->id = DSS_PLL_HDMI;
pll->base = hpll->base;
pll->clkin = clk;
+ pll->dss = dss;
if (hpll->wp->version == 4)
pll->hw = &dss_omap4_hdmi_pll_hw;
@@ -160,8 +162,8 @@ static int hdmi_init_pll_data(struct platform_device *pdev,
return 0;
}
-int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
- struct hdmi_wp_data *wp)
+int hdmi_pll_init(struct dss_device *dss, struct platform_device *pdev,
+ struct hdmi_pll_data *pll, struct hdmi_wp_data *wp)
{
int r;
struct resource *res;
@@ -174,7 +176,7 @@ int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
if (IS_ERR(pll->base))
return PTR_ERR(pll->base);
- r = hdmi_init_pll_data(pdev, pll);
+ r = hdmi_init_pll_data(dss, pdev, pll);
if (r) {
DSSERR("failed to init HDMI PLL\n");
return r;
diff --git a/drivers/gpu/drm/omapdrm/dss/video-pll.c b/drivers/gpu/drm/omapdrm/dss/video-pll.c
index 38a239cc5e04..7ef30f61c52b 100644
--- a/drivers/gpu/drm/omapdrm/dss/video-pll.c
+++ b/drivers/gpu/drm/omapdrm/dss/video-pll.c
@@ -62,7 +62,7 @@ static int dss_video_pll_enable(struct dss_pll *pll)
struct dss_video_pll *vpll = container_of(pll, struct dss_video_pll, pll);
int r;
- r = dss_runtime_get();
+ r = dss_runtime_get(pll->dss);
if (r)
return r;
@@ -81,7 +81,7 @@ static int dss_video_pll_enable(struct dss_pll *pll)
err_reset:
dss_dpll_disable_scp_clk(vpll);
dss_ctrl_pll_enable(pll->id, false);
- dss_runtime_put();
+ dss_runtime_put(pll->dss);
return r;
}
@@ -96,7 +96,7 @@ static void dss_video_pll_disable(struct dss_pll *pll)
dss_ctrl_pll_enable(pll->id, false);
- dss_runtime_put();
+ dss_runtime_put(pll->dss);
}
static const struct dss_pll_ops dss_pll_ops = {
@@ -134,8 +134,9 @@ static const struct dss_pll_hw dss_dra7_video_pll_hw = {
.errata_i886 = true,
};
-struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
- struct regulator *regulator)
+struct dss_pll *dss_video_pll_init(struct dss_device *dss,
+ struct platform_device *pdev, int id,
+ struct regulator *regulator)
{
const char * const reg_name[] = { "pll1", "pll2" };
const char * const clkctrl_name[] = { "pll1_clkctrl", "pll2_clkctrl" };
@@ -187,6 +188,7 @@ struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
pll->base = pll_base;
pll->hw = &dss_dra7_video_pll_hw;
pll->ops = &dss_pll_ops;
+ pll->dss = dss;
r = dss_pll_register(pll);
if (r)
--
Regards,
Laurent Pinchart
More information about the dri-devel
mailing list