Introduce DSI2 PLL clock sources needed by LCD2 channel and DSI2 Protocol
engine and DISPC Functional clock. Do the following:
- Modify dss_get_dsi_clk_source() and dss_select_dsi_clk_source() to take the
dsi module number as an argument.
- Create debugfs files for dsi2, split the corresponding debugfs functions.
- Split packet_sent_handler irqs for dsi1 and dsi2.
- Allow DPI to use these new clock sources.
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
arch/arm/plat-omap/include/plat/display.h | 2 +
drivers/video/omap2/dss/core.c | 14 ++++--
drivers/video/omap2/dss/dispc.c | 8 +++
drivers/video/omap2/dss/dpi.c | 6 ++-
drivers/video/omap2/dss/dsi.c | 73 ++++++++++++++++++++++------
drivers/video/omap2/dss/dss.c | 36 +++++++++++---
drivers/video/omap2/dss/dss.h | 15 ++++--
drivers/video/omap2/dss/dss_features.c | 5 ++-
drivers/video/omap2/dss/dss_features.h | 1 +
9 files changed, 126 insertions(+), 34 deletions(-)
diff --git a/arch/arm/plat-omap/include/plat/display.h b/arch/arm/plat-omap/include/plat/display.h
index 6305ff6..5568984 100644
--- a/arch/arm/plat-omap/include/plat/display.h
+++ b/arch/arm/plat-omap/include/plat/display.h
@@ -181,6 +181,8 @@ enum omap_dss_clk_source {
* OMAP4: PLL1_CLK1 */
OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI, /* OMAP3: DSI2_PLL_FCLK
* OMAP4: PLL1_CLK2 */
+ OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC, /* OMAP4: PLL2_CLK1 */
+ OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI, /* OMAP4: PLL2_CLK2 */
};
/* RFBI */
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 9bcb0b8..9c52e38 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -127,8 +127,11 @@ static int dss_initialize_debugfs(void)
#endif
#if defined(CONFIG_OMAP2_DSS_DSI) && defined(CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS)
- debugfs_create_file("dsi_irq", S_IRUGO, dss_debugfs_dir,
- &dsi_dump_irqs, &dss_debug_fops);
+ debugfs_create_file("dsi1_irq", S_IRUGO, dss_debugfs_dir,
+ &dsi1_dump_irqs, &dss_debug_fops);
+ if (dss_has_feature(FEAT_DSS_DSI2))
+ debugfs_create_file("dsi2_irq", S_IRUGO, dss_debugfs_dir,
+ &dsi2_dump_irqs, &dss_debug_fops);
#endif
debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir,
@@ -140,8 +143,11 @@ static int dss_initialize_debugfs(void)
&rfbi_dump_regs, &dss_debug_fops);
#endif
#ifdef CONFIG_OMAP2_DSS_DSI
- debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir,
- &dsi_dump_regs, &dss_debug_fops);
+ debugfs_create_file("dsi1", S_IRUGO, dss_debugfs_dir,
+ &dsi1_dump_regs, &dss_debug_fops);
+ if (dss_has_feature(FEAT_DSS_DSI2))
+ debugfs_create_file("dsi2", S_IRUGO, dss_debugfs_dir,
+ &dsi2_dump_regs, &dss_debug_fops);
#endif
#ifdef CONFIG_OMAP2_DSS_VENC
debugfs_create_file("venc", S_IRUGO, dss_debugfs_dir,
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 7927660..92a1172 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2364,6 +2364,10 @@ unsigned long dispc_fclk_rate(void)
dsidev = dsi_get_dsi_device_module(0);
r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+ dsidev = dsi_get_dsi_device_module(1);
+ r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
+ break;
default:
BUG();
}
@@ -2390,6 +2394,10 @@ unsigned long dispc_lclk_rate(enum omap_channel channel)
dsidev = dsi_get_dsi_device_module(0);
r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+ dsidev = dsi_get_dsi_device_module(1);
+ r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
+ break;
default:
BUG();
}
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 97d7985..7f65ee2 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -53,8 +53,12 @@ static bool dpi_use_dsi_pll(struct omap_dss_device *dssdev)
{
if (dssdev->clocks.dispc.dispc_fclk_src ==
OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC ||
+ dssdev->clocks.dispc.dispc_fclk_src ==
+ OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC ||
dssdev->clocks.dispc.channel.lcd_clk_src ==
- OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC)
+ OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC ||
+ dssdev->clocks.dispc.channel.lcd_clk_src ==
+ OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC)
return true;
else
return false;
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index a8478be..eead89a 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1134,7 +1134,7 @@ static unsigned long dsi_fclk_rate(struct platform_device *dsidev)
{
unsigned long r;
- if (dss_get_dsi_clk_source() == OMAP_DSS_CLK_SRC_FCK) {
+ if (dss_get_dsi_clk_source(dsidev->id) == OMAP_DSS_CLK_SRC_FCK) {
/* DSI FCLK source is DSS_CLK_FCK */
r = dss_clk_get_rate(DSS_CLK_FCK);
} else {
@@ -1660,19 +1660,18 @@ void dsi_pll_uninit(struct platform_device *dsidev, bool disconnect_lanes)
DSSDBG("PLL uninit done\n");
}
-void dsi_dump_clocks(struct seq_file *s)
+static void dsi_dump_clocks(struct platform_device *dsidev, struct seq_file *s)
{
- struct platform_device *dsidev = dsi_get_dsi_device_module(0);
struct dsi_data *dsi = dsi_get_dsi_data(dsidev);
struct dsi_clock_info *cinfo = &dsi->current_cinfo;
enum omap_dss_clk_source dispc_clk_src, dsi_clk_src;
dispc_clk_src = dss_get_dispc_clk_source();
- dsi_clk_src = dss_get_dsi_clk_source();
+ dsi_clk_src = dss_get_dsi_clk_source(dsidev->id);
enable_clocks(1);
- seq_printf(s, "- DSI PLL -\n");
+ seq_printf(s, "- DSI%d PLL -\n", dsidev->id + 1);
seq_printf(s, "dsi pll source = %s\n",
cinfo->use_sys_clk ? "dss_sys_clk" : "pclkfree");
@@ -1698,7 +1697,7 @@ void dsi_dump_clocks(struct seq_file *s)
dsi_clk_src == OMAP_DSS_CLK_SRC_FCK ?
"off" : "on");
- seq_printf(s, "- DSI -\n");
+ seq_printf(s, "- DSI%d -\n", dsidev->id + 1);
seq_printf(s, "dsi fclk source = %s (%s)\n",
dss_get_generic_clk_source_name(dsi_clk_src),
@@ -1721,10 +1720,21 @@ void dsi_dump_clocks(struct seq_file *s)
enable_clocks(0);
}
-#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-void dsi_dump_irqs(struct seq_file *s)
+void dsi1_dump_clocks(struct seq_file *s)
{
struct platform_device *dsidev = dsi_get_dsi_device_module(0);
+ dsi_dump_clocks(dsidev, s);
+}
+
+void dsi2_dump_clocks(struct seq_file *s)
+{
+ struct platform_device *dsidev = dsi_get_dsi_device_module(1);
+ dsi_dump_clocks(dsidev, s);
+}
+
+#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
+static void dsi_dump_irqs(struct platform_device *dsidev, struct seq_file *s)
+{
struct dsi_data *dsi = dsi_get_dsi_data(dsidev);
unsigned long flags;
struct dsi_irq_stats stats;
@@ -1744,7 +1754,7 @@ void dsi_dump_irqs(struct seq_file *s)
#define PIS(x) \
seq_printf(s, "%-20s %10d\n", #x, stats.dsi_irqs[ffs(DSI_IRQ_##x)-1]);
- seq_printf(s, "-- DSI interrupts --\n");
+ seq_printf(s, "-- DSI%d interrupts --\n", dsidev->id + 1);
PIS(VC0);
PIS(VC1);
PIS(VC2);
@@ -1810,12 +1820,22 @@ void dsi_dump_irqs(struct seq_file *s)
PIS(ULPSACTIVENOT_ALL1);
#undef PIS
}
-#endif
-void dsi_dump_regs(struct seq_file *s)
+void dsi1_dump_irqs(struct seq_file *s)
{
struct platform_device *dsidev = dsi_get_dsi_device_module(0);
+ dsi_dump_irqs(dsidev, s);
+}
+
+void dsi2_dump_irqs(struct seq_file *s)
+{
+ struct platform_device *dsidev = dsi_get_dsi_device_module(1);
+ dsi_dump_irqs(dsidev, s);
+}
+#endif
+static void dsi_dump_regs(struct platform_device *dsidev, struct seq_file *s)
+{
#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(dsidev, r))
dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK);
@@ -1896,6 +1916,18 @@ void dsi_dump_regs(struct seq_file *s)
#undef DUMPREG
}
+void dsi1_dump_regs(struct seq_file *s)
+{
+ struct platform_device *dsidev = dsi_get_dsi_device_module(0);
+ dsi_dump_regs(dsidev, s);
+}
+
+void dsi2_dump_regs(struct seq_file *s)
+{
+ struct platform_device *dsidev = dsi_get_dsi_device_module(1);
+ dsi_dump_regs(dsidev, s);
+}
+
enum dsi_cio_power_state {
DSI_COMPLEXIO_POWER_OFF = 0x0,
DSI_COMPLEXIO_POWER_ON = 0x1,
@@ -3833,9 +3865,13 @@ EXPORT_SYMBOL(omap_dsi_update);
static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
{
int r;
+ u32 irq;
+
+ irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
+ DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
r = omap_dispc_register_isr(dsi_framedone_irq_callback, (void *) dssdev,
- DISPC_IRQ_FRAMEDONE);
+ irq);
if (r) {
DSSERR("can't get FRAMEDONE irq\n");
return r;
@@ -3868,8 +3904,13 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
{
+ u32 irq;
+
+ irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
+ DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
+
omap_dispc_unregister_isr(dsi_framedone_irq_callback, (void *) dssdev,
- DISPC_IRQ_FRAMEDONE);
+ irq);
}
static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
@@ -3940,7 +3981,7 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
goto err1;
dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
- dss_select_dsi_clk_source(dssdev->clocks.dsi.dsi_fclk_src);
+ dss_select_dsi_clk_source(dsidev->id, dssdev->clocks.dsi.dsi_fclk_src);
dss_select_lcd_clk_source(dssdev->manager->id,
dssdev->clocks.dispc.channel.lcd_clk_src);
@@ -3979,7 +4020,7 @@ err3:
dsi_cio_uninit(dsidev);
err2:
dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
- dss_select_dsi_clk_source(OMAP_DSS_CLK_SRC_FCK);
+ dss_select_dsi_clk_source(dsidev->id, OMAP_DSS_CLK_SRC_FCK);
err1:
dsi_pll_uninit(dsidev, true);
err0:
@@ -4003,7 +4044,7 @@ static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev,
dsi_vc_enable(dsidev, 3, 0);
dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
- dss_select_dsi_clk_source(OMAP_DSS_CLK_SRC_FCK);
+ dss_select_dsi_clk_source(dsidev->id, OMAP_DSS_CLK_SRC_FCK);
dsi_cio_uninit(dsidev);
dsi_pll_uninit(dsidev, disconnect_lanes);
}
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 30f4c02..be4eb69 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -75,7 +75,7 @@ static struct {
struct dss_clock_info cache_dss_cinfo;
struct dispc_clock_info cache_dispc_cinfo;
- enum omap_dss_clk_source dsi_clk_source;
+ enum omap_dss_clk_source dsi_clk_source[MAX_NUM_DSI];
enum omap_dss_clk_source dispc_clk_source;
enum omap_dss_clk_source lcd_clk_source[MAX_DSS_LCD_MANAGERS];
@@ -315,6 +315,11 @@ void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src)
dsidev = dsi_get_dsi_device_module(0);
dsi_wait_pll_hsdiv_dispc_active(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+ b = 2;
+ dsidev = dsi_get_dsi_device_module(1);
+ dsi_wait_pll_hsdiv_dispc_active(dsidev);
+ break;
default:
BUG();
}
@@ -326,7 +331,8 @@ void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src)
dss.dispc_clk_source = clk_src;
}
-void dss_select_dsi_clk_source(enum omap_dss_clk_source clk_src)
+void dss_select_dsi_clk_source(int dsi_module,
+ enum omap_dss_clk_source clk_src)
{
struct platform_device *dsidev;
int b;
@@ -336,17 +342,24 @@ void dss_select_dsi_clk_source(enum omap_dss_clk_source clk_src)
b = 0;
break;
case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI:
+ BUG_ON(dsi_module != 0);
b = 1;
dsidev = dsi_get_dsi_device_module(0);
dsi_wait_pll_hsdiv_dsi_active(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI:
+ BUG_ON(dsi_module != 1);
+ b = 1;
+ dsidev = dsi_get_dsi_device_module(1);
+ dsi_wait_pll_hsdiv_dsi_active(dsidev);
+ break;
default:
BUG();
}
REG_FLD_MOD(DSS_CONTROL, b, 1, 1); /* DSI_CLK_SWITCH */
- dss.dsi_clk_source = clk_src;
+ dss.dsi_clk_source[dsi_module] = clk_src;
}
void dss_select_lcd_clk_source(enum omap_channel channel,
@@ -368,6 +381,12 @@ void dss_select_lcd_clk_source(enum omap_channel channel,
dsidev = dsi_get_dsi_device_module(0);
dsi_wait_pll_hsdiv_dispc_active(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+ BUG_ON(channel != OMAP_DSS_CHANNEL_LCD2);
+ b = 1;
+ dsidev = dsi_get_dsi_device_module(1);
+ dsi_wait_pll_hsdiv_dispc_active(dsidev);
+ break;
default:
BUG();
}
@@ -384,9 +403,9 @@ enum omap_dss_clk_source dss_get_dispc_clk_source(void)
return dss.dispc_clk_source;
}
-enum omap_dss_clk_source dss_get_dsi_clk_source(void)
+enum omap_dss_clk_source dss_get_dsi_clk_source(int dsi_module)
{
- return dss.dsi_clk_source;
+ return dss.dsi_clk_source[dsi_module];
}
enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel)
@@ -717,7 +736,8 @@ static int dss_init(void)
dss.dpll4_m4_ck = dpll4_m4_ck;
- dss.dsi_clk_source = OMAP_DSS_CLK_SRC_FCK;
+ dss.dsi_clk_source[0] = OMAP_DSS_CLK_SRC_FCK;
+ dss.dsi_clk_source[1] = OMAP_DSS_CLK_SRC_FCK;
dss.dispc_clk_source = OMAP_DSS_CLK_SRC_FCK;
dss.lcd_clk_source[0] = OMAP_DSS_CLK_SRC_FCK;
dss.lcd_clk_source[1] = OMAP_DSS_CLK_SRC_FCK;
@@ -1066,7 +1086,9 @@ void dss_debug_dump_clocks(struct seq_file *s)
dss_dump_clocks(s);
dispc_dump_clocks(s);
#ifdef CONFIG_OMAP2_DSS_DSI
- dsi_dump_clocks(s);
+ dsi1_dump_clocks(s);
+ if (dss_has_feature(FEAT_DSS_DSI2))
+ dsi2_dump_clocks(s);
#endif
}
#endif
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index bca64f9..216c87a 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -240,11 +240,12 @@ int dss_sdi_enable(void);
void dss_sdi_disable(void);
void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src);
-void dss_select_dsi_clk_source(enum omap_dss_clk_source clk_src);
+void dss_select_dsi_clk_source(int dsi_module,
+ enum omap_dss_clk_source clk_src);
void dss_select_lcd_clk_source(enum omap_channel channel,
enum omap_dss_clk_source clk_src);
enum omap_dss_clk_source dss_get_dispc_clk_source(void);
-enum omap_dss_clk_source dss_get_dsi_clk_source(void);
+enum omap_dss_clk_source dss_get_dsi_clk_source(int dsi_module);
enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel);
void dss_set_venc_output(enum omap_dss_venc_type type);
@@ -278,9 +279,13 @@ static inline void sdi_exit(void)
int dsi_init_platform_driver(void);
void dsi_uninit_platform_driver(void);
-void dsi_dump_clocks(struct seq_file *s);
-void dsi_dump_irqs(struct seq_file *s);
-void dsi_dump_regs(struct seq_file *s);
+void dsi1_dump_clocks(struct seq_file *s);
+void dsi1_dump_irqs(struct seq_file *s);
+void dsi1_dump_regs(struct seq_file *s);
+
+void dsi2_dump_clocks(struct seq_file *s);
+void dsi2_dump_irqs(struct seq_file *s);
+void dsi2_dump_regs(struct seq_file *s);
void dsi_save_context(void);
void dsi_restore_context(void);
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index f8c9503..2809239 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -193,6 +193,8 @@ static const char * const omap4_dss_clk_source_names[] = {
[OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC] = "PLL1_CLK1",
[OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI] = "PLL1_CLK2",
[OMAP_DSS_CLK_SRC_FCK] = "DSS_FCLK",
+ [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC] = "PLL2_CLK1",
+ [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI] = "PLL2_CLK2",
};
static const struct dss_param_range omap2_dss_param_range[] = {
@@ -292,7 +294,8 @@ static const struct omap_dss_features omap4_dss_features = {
FEAT_GLOBAL_ALPHA | FEAT_PRE_MULT_ALPHA |
FEAT_MGR_LCD2 | FEAT_GLOBAL_ALPHA_VID1 |
FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC |
- FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH,
+ FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH |
+ FEAT_DSS_DSI2,
.num_mgrs = 3,
.num_ovls = 3,
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index 857162b..cc74523 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -47,6 +47,7 @@ enum dss_feat_id {
FEAT_DSI_DCS_CMD_CONFIG_VC = 1 << 15,
FEAT_DSI_VC_OCP_WIDTH = 1 << 16,
FEAT_DSI_REVERSE_TXCLKESC = 1 << 17,
+ FEAT_DSS_DSI2 = 1 << 18,
};
/* DSS register field id */
--
1.7.1
--
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