diff options
author | Archit Taneja <archit@ti.com> | 2011-05-12 17:26:29 +0530 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-05-12 19:30:27 +0300 |
commit | 5a8b572d832772722c3b3b7578e7fb968560fcf3 (patch) | |
tree | 1d99897d89fcc0f5743cf7503a28a2f6793eed03 /drivers/video/omap2 | |
parent | 2e868dbe1d24a908fcb4dee0733500fd0aab0bce (diff) | |
download | kernel_samsung_smdk4412-5a8b572d832772722c3b3b7578e7fb968560fcf3.zip kernel_samsung_smdk4412-5a8b572d832772722c3b3b7578e7fb968560fcf3.tar.gz kernel_samsung_smdk4412-5a8b572d832772722c3b3b7578e7fb968560fcf3.tar.bz2 |
OMAP4: DSS2: DSI: Changes for DSI2 on OMAP4
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.
- Allow DPI to use these new clock sources.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/omap2')
-rw-r--r-- | drivers/video/omap2/dss/core.c | 6 | ||||
-rw-r--r-- | drivers/video/omap2/dss/dispc.c | 8 | ||||
-rw-r--r-- | drivers/video/omap2/dss/dpi.c | 6 | ||||
-rw-r--r-- | drivers/video/omap2/dss/dsi.c | 117 | ||||
-rw-r--r-- | drivers/video/omap2/dss/dss.c | 32 | ||||
-rw-r--r-- | drivers/video/omap2/dss/dss.h | 15 | ||||
-rw-r--r-- | drivers/video/omap2/dss/dss_features.c | 2 |
7 files changed, 155 insertions, 31 deletions
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 5fbf9e8..3da4267 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -127,8 +127,7 @@ 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); + dsi_create_debugfs_files_irq(dss_debugfs_dir, &dss_debug_fops); #endif debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir, @@ -140,8 +139,7 @@ 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); + dsi_create_debugfs_files_reg(dss_debugfs_dir, &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 df8c992..1a2d835 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -2250,6 +2250,10 @@ unsigned long dispc_fclk_rate(void) dsidev = dsi_get_dsidev_from_id(0); r = dsi_get_pll_hsdiv_dispc_rate(dsidev); break; + case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC: + dsidev = dsi_get_dsidev_from_id(1); + r = dsi_get_pll_hsdiv_dispc_rate(dsidev); + break; default: BUG(); } @@ -2276,6 +2280,10 @@ unsigned long dispc_lclk_rate(enum omap_channel channel) dsidev = dsi_get_dsidev_from_id(0); r = dsi_get_pll_hsdiv_dispc_rate(dsidev); break; + case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC: + dsidev = dsi_get_dsidev_from_id(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 4d661a9..ff6bd30 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 762b0fe..85ec3d6 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -35,6 +35,7 @@ #include <linux/workqueue.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/debugfs.h> #include <video/omapdss.h> #include <plat/clock.h> @@ -1143,8 +1144,9 @@ static unsigned long dsi_get_txbyteclkhs(struct platform_device *dsidev) static unsigned long dsi_fclk_rate(struct platform_device *dsidev) { unsigned long r; + int dsi_module = dsi_get_dsidev_id(dsidev); - if (dss_get_dsi_clk_source() == OMAP_DSS_CLK_SRC_FCK) { + if (dss_get_dsi_clk_source(dsi_module) == OMAP_DSS_CLK_SRC_FCK) { /* DSI FCLK source is DSS_CLK_FCK */ r = dss_clk_get_rate(DSS_CLK_FCK); } else { @@ -1670,19 +1672,20 @@ 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_dsidev_clocks(struct platform_device *dsidev, + struct seq_file *s) { - struct platform_device *dsidev = dsi_get_dsidev_from_id(0); struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); struct dsi_clock_info *cinfo = &dsi->current_cinfo; enum omap_dss_clk_source dispc_clk_src, dsi_clk_src; + int dsi_module = dsi_get_dsidev_id(dsidev); dispc_clk_src = dss_get_dispc_clk_source(); - dsi_clk_src = dss_get_dsi_clk_source(); + dsi_clk_src = dss_get_dsi_clk_source(dsi_module); enable_clocks(1); - seq_printf(s, "- DSI PLL -\n"); + seq_printf(s, "- DSI%d PLL -\n", dsi_module + 1); seq_printf(s, "dsi pll source = %s\n", cinfo->use_sys_clk ? "dss_sys_clk" : "pclkfree"); @@ -1708,7 +1711,7 @@ 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", dsi_module + 1); seq_printf(s, "dsi fclk source = %s (%s)\n", dss_get_generic_clk_source_name(dsi_clk_src), @@ -1731,13 +1734,26 @@ void dsi_dump_clocks(struct seq_file *s) enable_clocks(0); } +void dsi_dump_clocks(struct seq_file *s) +{ + struct platform_device *dsidev; + int i; + + for (i = 0; i < MAX_NUM_DSI; i++) { + dsidev = dsi_get_dsidev_from_id(i); + if (dsidev) + dsi_dump_dsidev_clocks(dsidev, s); + } +} + #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS -void dsi_dump_irqs(struct seq_file *s) +static void dsi_dump_dsidev_irqs(struct platform_device *dsidev, + struct seq_file *s) { - struct platform_device *dsidev = dsi_get_dsidev_from_id(0); struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); unsigned long flags; struct dsi_irq_stats stats; + int dsi_module = dsi_get_dsidev_id(dsidev); spin_lock_irqsave(&dsi->irq_stats_lock, flags); @@ -1754,7 +1770,7 @@ 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", dsi_module + 1); PIS(VC0); PIS(VC1); PIS(VC2); @@ -1820,12 +1836,41 @@ void dsi_dump_irqs(struct seq_file *s) PIS(ULPSACTIVENOT_ALL1); #undef PIS } -#endif -void dsi_dump_regs(struct seq_file *s) +static void dsi1_dump_irqs(struct seq_file *s) { struct platform_device *dsidev = dsi_get_dsidev_from_id(0); + dsi_dump_dsidev_irqs(dsidev, s); +} + +static void dsi2_dump_irqs(struct seq_file *s) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_id(1); + + dsi_dump_dsidev_irqs(dsidev, s); +} + +void dsi_create_debugfs_files_irq(struct dentry *debugfs_dir, + const struct file_operations *debug_fops) +{ + struct platform_device *dsidev; + + dsidev = dsi_get_dsidev_from_id(0); + if (dsidev) + debugfs_create_file("dsi1_irqs", S_IRUGO, debugfs_dir, + &dsi1_dump_irqs, debug_fops); + + dsidev = dsi_get_dsidev_from_id(1); + if (dsidev) + debugfs_create_file("dsi2_irqs", S_IRUGO, debugfs_dir, + &dsi2_dump_irqs, debug_fops); +} +#endif + +static void dsi_dump_dsidev_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); @@ -1906,6 +1951,35 @@ void dsi_dump_regs(struct seq_file *s) #undef DUMPREG } +static void dsi1_dump_regs(struct seq_file *s) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_id(0); + + dsi_dump_dsidev_regs(dsidev, s); +} + +static void dsi2_dump_regs(struct seq_file *s) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_id(1); + + dsi_dump_dsidev_regs(dsidev, s); +} + +void dsi_create_debugfs_files_reg(struct dentry *debugfs_dir, + const struct file_operations *debug_fops) +{ + struct platform_device *dsidev; + + dsidev = dsi_get_dsidev_from_id(0); + if (dsidev) + debugfs_create_file("dsi1_regs", S_IRUGO, debugfs_dir, + &dsi1_dump_regs, debug_fops); + + dsidev = dsi_get_dsidev_from_id(1); + if (dsidev) + debugfs_create_file("dsi2_regs", S_IRUGO, debugfs_dir, + &dsi2_dump_regs, debug_fops); +} enum dsi_cio_power_state { DSI_COMPLEXIO_POWER_OFF = 0x0, DSI_COMPLEXIO_POWER_ON = 0x1, @@ -3847,9 +3921,13 @@ 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; @@ -3882,8 +3960,13 @@ 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) @@ -3943,6 +4026,7 @@ static int dsi_configure_dispc_clocks(struct omap_dss_device *dssdev) static int dsi_display_init_dsi(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + int dsi_module = dsi_get_dsidev_id(dsidev); int r; r = dsi_pll_init(dsidev, true, true); @@ -3954,7 +4038,7 @@ 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(dsi_module, dssdev->clocks.dsi.dsi_fclk_src); dss_select_lcd_clk_source(dssdev->manager->id, dssdev->clocks.dispc.channel.lcd_clk_src); @@ -3993,7 +4077,7 @@ 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(dsi_module, OMAP_DSS_CLK_SRC_FCK); err1: dsi_pll_uninit(dsidev, true); err0: @@ -4005,6 +4089,7 @@ static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev, { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + int dsi_module = dsi_get_dsidev_id(dsidev); if (enter_ulps && !dsi->ulps_enabled) dsi_enter_ulps(dsidev); @@ -4017,7 +4102,7 @@ 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(dsi_module, 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 3bf6e62..d9489d5 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -74,7 +74,7 @@ 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]; @@ -313,6 +313,11 @@ void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src) dsidev = dsi_get_dsidev_from_id(0); dsi_wait_pll_hsdiv_dispc_active(dsidev); break; + case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC: + b = 2; + dsidev = dsi_get_dsidev_from_id(1); + dsi_wait_pll_hsdiv_dispc_active(dsidev); + break; default: BUG(); } @@ -324,7 +329,8 @@ 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; @@ -334,17 +340,24 @@ 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_dsidev_from_id(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_dsidev_from_id(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, @@ -366,6 +379,12 @@ void dss_select_lcd_clk_source(enum omap_channel channel, dsidev = dsi_get_dsidev_from_id(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_dsidev_from_id(1); + dsi_wait_pll_hsdiv_dispc_active(dsidev); + break; default: BUG(); } @@ -382,9 +401,9 @@ 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) @@ -715,7 +734,8 @@ 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; diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 90b4d51..3e6dbd5 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); @@ -275,12 +276,18 @@ static inline void sdi_exit(void) /* DSI */ #ifdef CONFIG_OMAP2_DSS_DSI + +struct dentry; +struct file_operations; + 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 dsi_create_debugfs_files_irq(struct dentry *debugfs_dir, + const struct file_operations *debug_fops); +void dsi_create_debugfs_files_reg(struct dentry *debugfs_dir, + const struct file_operations *debug_fops); 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 66f8711..5be5eb0 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[] = { |