From: Senthilvadivu Guruswamy <svadivu@xxxxxx>
Hwmod adaptation design requires each of the DSS HW IP to be a platform driver.
So a platform_driver for VENC is created and init exit methods are moved from core.c
to its driver probe,remove. pdev member has to be maintained by its own drivers.
Also, venc_vdda_dac reading is moved to venc.c.
VENC platform driver is registered from inside omap_dss_probe, in the order desired.
Signed-off-by: Senthilvadivu Guruswamy <svadivu@xxxxxx>
Signed-off-by: Sumit Semwal <sumit.semwal@xxxxxx>
---
arch/arm/mach-omap2/board-3430sdp.c | 2 +-
drivers/video/omap2/dss/core.c | 28 +-------
drivers/video/omap2/dss/dss.h | 9 +--
drivers/video/omap2/dss/venc.c | 116 +++++++++++++++++++++++------------
4 files changed, 85 insertions(+), 70 deletions(-)
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index e1a3318..83baba7 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -302,7 +302,7 @@ static struct omap_dss_board_info sdp3430_dss_data = {
};
static struct regulator_consumer_supply sdp3430_vdda_dac_supply =
- REGULATOR_SUPPLY("vdda_dac", "omap_display");
+ REGULATOR_SUPPLY("vdda_dac", "omap_venc");
static struct omap_board_config_kernel sdp3430_config[] __initdata = {
};
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index ed8d22d..7153986 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -43,7 +43,6 @@ static struct {
struct regulator *vdds_dsi_reg;
struct regulator *vdds_sdi_reg;
- struct regulator *vdda_dac_reg;
} core;
static char *def_disp_name;
@@ -85,20 +84,6 @@ struct regulator *dss_get_vdds_sdi(void)
return reg;
}
-struct regulator *dss_get_vdda_dac(void)
-{
- struct regulator *reg;
-
- if (core.vdda_dac_reg != NULL)
- return core.vdda_dac_reg;
-
- reg = regulator_get(&core.pdev->dev, "vdda_dac");
- if (!IS_ERR(reg))
- core.vdda_dac_reg = reg;
-
- return reg;
-}
-
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
static int dss_debug_show(struct seq_file *s, void *unused)
{
@@ -219,9 +204,9 @@ static int omap_dss_probe(struct platform_device *pdev)
goto err_dispc;
}
- r = venc_init(pdev);
+ r = venc_init_platform_driver();
if (r) {
- DSSERR("Failed to initialize venc\n");
+ DSSERR("Failed to initialize venc platform driver\n");
goto err_venc;
}
@@ -280,7 +265,7 @@ err_dsi:
if (cpu_is_omap34xx())
sdi_exit();
err_sdi:
- venc_exit();
+ venc_deinit_platform_driver();
err_venc:
dispc_deinit_platform_driver();
err_dispc:
@@ -301,7 +286,7 @@ static int omap_dss_remove(struct platform_device *pdev)
dss_uninitialize_debugfs();
- venc_exit();
+ venc_deinit_platform_driver();
dispc_deinit_platform_driver();
dpi_exit();
rfbi_deinit_platform_driver();
@@ -598,11 +583,6 @@ static void __exit omap_dss_exit(void)
core.vdds_sdi_reg = NULL;
}
- if (core.vdda_dac_reg != NULL) {
- regulator_put(core.vdda_dac_reg);
- core.vdda_dac_reg = NULL;
- }
-
platform_driver_unregister(&omap_dss_driver);
omap_dss_bus_unregister();
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 90048b9..c1ab6c6 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -172,7 +172,6 @@ struct platform_device;
struct bus_type *dss_get_bus(void);
struct regulator *dss_get_vdds_dsi(void);
struct regulator *dss_get_vdds_sdi(void);
-struct regulator *dss_get_vdda_dac(void);
/* display */
int dss_suspend_all_devices(void);
@@ -405,16 +404,16 @@ int dispc_get_clock_div(struct dispc_clock_info *cinfo);
/* VENC */
#ifdef CONFIG_OMAP2_DSS_VENC
-int venc_init(struct platform_device *pdev);
-void venc_exit(void);
+int venc_init_platform_driver(void);
+void venc_deinit_platform_driver(void);
void venc_dump_regs(struct seq_file *s);
int venc_init_display(struct omap_dss_device *display);
#else
-static inline int venc_init(struct platform_device *pdev)
+static inline int venc_init_platform_driver(void)
{
return 0;
}
-static inline void venc_exit(void)
+static inline void venc_deinit_platform_driver(void)
{
}
#endif
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index eff3505..029fbc3 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -289,6 +289,7 @@ const struct omap_video_timings omap_dss_ntsc_timings = {
EXPORT_SYMBOL(omap_dss_ntsc_timings);
static struct {
+ struct platform_device *pdev;
void __iomem *base;
struct mutex venc_lock;
u32 wss_data;
@@ -306,6 +307,17 @@ static inline u32 venc_read_reg(int idx)
return l;
}
+static struct regulator *venc_get_vdda_dac(void)
+{
+ struct regulator *reg;
+
+ reg = regulator_get(&venc.pdev->dev, "vdda_dac");
+ if (!IS_ERR(reg))
+ venc.vdda_dac_reg = reg;
+
+ return reg;
+}
+
static void venc_write_config(const struct venc_config *config)
{
DSSDBG("write venc conf\n");
@@ -641,46 +653,6 @@ static struct omap_dss_driver venc_driver = {
};
/* driver end */
-
-
-int venc_init(struct platform_device *pdev)
-{
- u8 rev_id;
-
- mutex_init(&venc.venc_lock);
-
- venc.wss_data = 0;
-
- venc.base = ioremap(VENC_BASE, SZ_1K);
- if (!venc.base) {
- DSSERR("can't ioremap VENC\n");
- return -ENOMEM;
- }
-
- venc.vdda_dac_reg = dss_get_vdda_dac();
- if (IS_ERR(venc.vdda_dac_reg)) {
- iounmap(venc.base);
- DSSERR("can't get VDDA_DAC regulator\n");
- return PTR_ERR(venc.vdda_dac_reg);
- }
-
- venc_enable_clocks(1);
-
- rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
- printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
-
- venc_enable_clocks(0);
-
- return omap_dss_register_driver(&venc_driver);
-}
-
-void venc_exit(void)
-{
- omap_dss_unregister_driver(&venc_driver);
-
- iounmap(venc.base);
-}
-
int venc_init_display(struct omap_dss_device *dssdev)
{
DSSDBG("init_display\n");
@@ -740,3 +712,67 @@ void venc_dump_regs(struct seq_file *s)
#undef DUMPREG
}
+
+/* VENC HW IP initialisation */
+static int omap_venchw_probe(struct platform_device *pdev)
+{
+ u8 rev_id;
+ venc.pdev = pdev;
+
+ mutex_init(&venc.venc_lock);
+
+ venc.wss_data = 0;
+
+ venc.base = ioremap(VENC_BASE, SZ_1K);
+ if (!venc.base) {
+ DSSERR("can't ioremap VENC\n");
+ return -ENOMEM;
+ }
+
+ venc.vdda_dac_reg = venc_get_vdda_dac();
+ if (IS_ERR(venc.vdda_dac_reg)) {
+ iounmap(venc.base);
+ DSSERR("can't get VDDA_DAC regulator\n");
+ return PTR_ERR(venc.vdda_dac_reg);
+ }
+
+ venc_enable_clocks(1);
+
+ rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
+ printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
+
+ venc_enable_clocks(0);
+
+ return omap_dss_register_driver(&venc_driver);
+}
+
+static int omap_venchw_remove(struct platform_device *pdev)
+{
+ if (venc.vdda_dac_reg != NULL) {
+ regulator_put(venc.vdda_dac_reg);
+ venc.vdda_dac_reg = NULL;
+ }
+ omap_dss_unregister_driver(&venc_driver);
+
+ iounmap(venc.base);
+ return 0;
+}
+
+static struct platform_driver omap_venchw_driver = {
+ .probe = omap_venchw_probe,
+ .remove = omap_venchw_remove,
+ .driver = {
+ .name = "omap_venc",
+ .owner = THIS_MODULE,
+ },
+};
+
+int venc_init_platform_driver(void)
+{
+ return platform_driver_register(&omap_venchw_driver);
+}
+
+void venc_deinit_platform_driver(void)
+{
+ return platform_driver_unregister(&omap_venchw_driver);
+}
--
1.7.0.4
--
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