OMAP: DSS2: Use PM runtime & HWMOD support (4fbafaf3) · Commits · 戴 / test

drivers/video/omap2/dss/dispc.c

+225 −101

Original line number	Original line	Diff line number	Diff line
	@@ -34,6 +34,7 @@
	#include <linux/hardirq.h>		#include <linux/hardirq.h>
	#include <linux/interrupt.h>		#include <linux/interrupt.h>
	#include <linux/platform_device.h>		#include <linux/platform_device.h>
			#include <linux/pm_runtime.h>

	#include <plat/sram.h>		#include <plat/sram.h>
	#include <plat/clock.h>		#include <plat/clock.h>
	@@ -99,7 +100,11 @@ struct dispc_irq_stats {
	static struct {		static struct {
	struct platform_device *pdev;		struct platform_device *pdev;
	void __iomem *base;		void __iomem *base;

			int ctx_loss_cnt;

	int irq;		int irq;
			struct clk *dss_clk;

	u32 fifo_size[3];		u32 fifo_size[3];

	@@ -146,13 +151,12 @@ static inline u32 dispc_read_reg(const u16 idx)
	#define RR(reg) \		#define RR(reg) \
	dispc_write_reg(DISPC_##reg, dispc.ctx[DISPC_##reg / sizeof(u32)])		dispc_write_reg(DISPC_##reg, dispc.ctx[DISPC_##reg / sizeof(u32)])

	void dispc_save_context(void)		static void dispc_save_context(void)
	{		{
	int i;		int i;
	if (cpu_is_omap24xx())
	return;

	SR(SYSCONFIG);		DSSDBG("dispc_save_context\n");

	SR(IRQENABLE);		SR(IRQENABLE);
	SR(CONTROL);		SR(CONTROL);
	SR(CONFIG);		SR(CONFIG);
	@@ -320,10 +324,12 @@ void dispc_save_context(void)
	SR(DIVISOR);		SR(DIVISOR);
	}		}

	void dispc_restore_context(void)		static void dispc_restore_context(void)
	{		{
	int i;		int i;
	RR(SYSCONFIG);
			DSSDBG("dispc_restore_context\n");

	/RR(IRQENABLE);/		/RR(IRQENABLE);/
	/RR(CONTROL);/		/RR(CONTROL);/
	RR(CONFIG);		RR(CONFIG);
	@@ -507,14 +513,82 @@ void dispc_restore_context(void)
	#undef SR		#undef SR
	#undef RR		#undef RR

	static inline void enable_clocks(bool enable)		static void dispc_init_ctx_loss_count(void)
	{		{
	if (enable)		struct device *dev = &dispc.pdev->dev;
	dss_clk_enable(DSS_CLK_ICK \| DSS_CLK_FCK);		struct omap_display_platform_data *pdata = dev->platform_data;
	else		struct omap_dss_board_info *board_data = pdata->board_data;
	dss_clk_disable(DSS_CLK_ICK \| DSS_CLK_FCK);		int cnt = 0;

			/*
			* get_context_loss_count returns negative on error. We'll ignore the
			* error and store the error to ctx_loss_cnt, which will cause
			* dispc_need_ctx_restore() call to return true.
			*/

			if (board_data->get_context_loss_count)
			cnt = board_data->get_context_loss_count(dev);

			WARN_ON(cnt < 0);

			dispc.ctx_loss_cnt = cnt;

			DSSDBG("initial ctx_loss_cnt %u\n", cnt);
	}		}

			static bool dispc_need_ctx_restore(void)
			{
			struct device *dev = &dispc.pdev->dev;
			struct omap_display_platform_data *pdata = dev->platform_data;
			struct omap_dss_board_info *board_data = pdata->board_data;
			int cnt;

			/*
			* If get_context_loss_count is not available, assume that we need
			* context restore always.
			*/
			if (!board_data->get_context_loss_count)
			return true;

			cnt = board_data->get_context_loss_count(dev);
			if (cnt < 0) {
			dev_err(dev, "getting context loss count failed, will force "
			"context restore\n");
			dispc.ctx_loss_cnt = cnt;
			return true;
			}

			if (cnt == dispc.ctx_loss_cnt)
			return false;

			DSSDBG("ctx_loss_cnt %d -> %d\n", dispc.ctx_loss_cnt, cnt);
			dispc.ctx_loss_cnt = cnt;

			return true;
			}

			int dispc_runtime_get(void)
			{
			int r;

			DSSDBG("dispc_runtime_get\n");

			r = pm_runtime_get_sync(&dispc.pdev->dev);
			WARN_ON(r < 0);
			return r < 0 ? r : 0;
			}

			void dispc_runtime_put(void)
			{
			int r;

			DSSDBG("dispc_runtime_put\n");

			r = pm_runtime_put(&dispc.pdev->dev);
			WARN_ON(r < 0);
			}


	bool dispc_go_busy(enum omap_channel channel)		bool dispc_go_busy(enum omap_channel channel)
	{		{
	int bit;		int bit;
	@@ -536,7 +610,7 @@ void dispc_go(enum omap_channel channel)
	int bit;		int bit;
	bool enable_bit, go_bit;		bool enable_bit, go_bit;

	enable_clocks(1);		dispc_runtime_get();

	if (channel == OMAP_DSS_CHANNEL_LCD \|\|		if (channel == OMAP_DSS_CHANNEL_LCD \|\|
	channel == OMAP_DSS_CHANNEL_LCD2)		channel == OMAP_DSS_CHANNEL_LCD2)
	@@ -577,7 +651,7 @@ void dispc_go(enum omap_channel channel)
	else		else
	REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);		REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
	end:		end:
	enable_clocks(0);		dispc_runtime_put();
	}		}

	static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)		static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
	@@ -1003,7 +1077,7 @@ static void dispc_set_burst_size(enum omap_plane plane,
	{		{
	int shift;		int shift;

	enable_clocks(1);		dispc_runtime_get();

	switch (plane) {		switch (plane) {
	case OMAP_DSS_GFX:		case OMAP_DSS_GFX:
	@@ -1020,7 +1094,7 @@ static void dispc_set_burst_size(enum omap_plane plane,

	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), burst_size, shift + 1, shift);		REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), burst_size, shift + 1, shift);

	enable_clocks(0);		dispc_runtime_put();
	}		}

	static void dispc_configure_burst_sizes(void)		static void dispc_configure_burst_sizes(void)
	@@ -1108,9 +1182,9 @@ void dispc_enable_replication(enum omap_plane plane, bool enable)
	else		else
	bit = 10;		bit = 10;

	enable_clocks(1);		dispc_runtime_get();
	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable, bit, bit);		REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable, bit, bit);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_set_lcd_size(enum omap_channel channel, u16 width, u16 height)		void dispc_set_lcd_size(enum omap_channel channel, u16 width, u16 height)
	@@ -1118,9 +1192,9 @@ void dispc_set_lcd_size(enum omap_channel channel, u16 width, u16 height)
	u32 val;		u32 val;
	BUG_ON((width > (1 << 11)) \|\| (height > (1 << 11)));		BUG_ON((width > (1 << 11)) \|\| (height > (1 << 11)));
	val = FLD_VAL(height - 1, 26, 16) \| FLD_VAL(width - 1, 10, 0);		val = FLD_VAL(height - 1, 26, 16) \| FLD_VAL(width - 1, 10, 0);
	enable_clocks(1);		dispc_runtime_get();
	dispc_write_reg(DISPC_SIZE_MGR(channel), val);		dispc_write_reg(DISPC_SIZE_MGR(channel), val);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_set_digit_size(u16 width, u16 height)		void dispc_set_digit_size(u16 width, u16 height)
	@@ -1128,9 +1202,9 @@ void dispc_set_digit_size(u16 width, u16 height)
	u32 val;		u32 val;
	BUG_ON((width > (1 << 11)) \|\| (height > (1 << 11)));		BUG_ON((width > (1 << 11)) \|\| (height > (1 << 11)));
	val = FLD_VAL(height - 1, 26, 16) \| FLD_VAL(width - 1, 10, 0);		val = FLD_VAL(height - 1, 26, 16) \| FLD_VAL(width - 1, 10, 0);
	enable_clocks(1);		dispc_runtime_get();
	dispc_write_reg(DISPC_SIZE_MGR(OMAP_DSS_CHANNEL_DIGIT), val);		dispc_write_reg(DISPC_SIZE_MGR(OMAP_DSS_CHANNEL_DIGIT), val);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	static void dispc_read_plane_fifo_sizes(void)		static void dispc_read_plane_fifo_sizes(void)
	@@ -1142,7 +1216,7 @@ static void dispc_read_plane_fifo_sizes(void)

	unit = dss_feat_get_buffer_size_unit();		unit = dss_feat_get_buffer_size_unit();

	enable_clocks(1);		dispc_runtime_get();

	dss_feat_get_reg_field(FEAT_REG_FIFOSIZE, &start, &end);		dss_feat_get_reg_field(FEAT_REG_FIFOSIZE, &start, &end);

	@@ -1152,7 +1226,7 @@ static void dispc_read_plane_fifo_sizes(void)
	dispc.fifo_size[plane] = size;		dispc.fifo_size[plane] = size;
	}		}

	enable_clocks(0);		dispc_runtime_put();
	}		}

	u32 dispc_get_plane_fifo_size(enum omap_plane plane)		u32 dispc_get_plane_fifo_size(enum omap_plane plane)
	@@ -1176,7 +1250,7 @@ void dispc_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high)
	dss_feat_get_reg_field(FEAT_REG_FIFOHIGHTHRESHOLD, &hi_start, &hi_end);		dss_feat_get_reg_field(FEAT_REG_FIFOHIGHTHRESHOLD, &hi_start, &hi_end);
	dss_feat_get_reg_field(FEAT_REG_FIFOLOWTHRESHOLD, &lo_start, &lo_end);		dss_feat_get_reg_field(FEAT_REG_FIFOLOWTHRESHOLD, &lo_start, &lo_end);

	enable_clocks(1);		dispc_runtime_get();

	DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",		DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",
	plane,		plane,
	@@ -1190,17 +1264,17 @@ void dispc_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high)
	FLD_VAL(high, hi_start, hi_end) \|		FLD_VAL(high, hi_start, hi_end) \|
	FLD_VAL(low, lo_start, lo_end));		FLD_VAL(low, lo_start, lo_end));

	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_enable_fifomerge(bool enable)		void dispc_enable_fifomerge(bool enable)
	{		{
	enable_clocks(1);		dispc_runtime_get();

	DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");		DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
	REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);		REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);

	enable_clocks(0);		dispc_runtime_put();
	}		}

	static void _dispc_set_fir(enum omap_plane plane,		static void _dispc_set_fir(enum omap_plane plane,
	@@ -1822,9 +1896,9 @@ static unsigned long calc_fclk(enum omap_channel channel, u16 width,

	void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)		void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	_dispc_set_channel_out(plane, channel_out);		_dispc_set_channel_out(plane, channel_out);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	static int _dispc_setup_plane(enum omap_plane plane,		static int _dispc_setup_plane(enum omap_plane plane,
	@@ -2020,7 +2094,7 @@ static void dispc_enable_lcd_out(enum omap_channel channel, bool enable)
	int r;		int r;
	u32 irq;		u32 irq;

	enable_clocks(1);		dispc_runtime_get();

	/* When we disable LCD output, we need to wait until frame is done.		/* When we disable LCD output, we need to wait until frame is done.
	* Otherwise the DSS is still working, and turning off the clocks		* Otherwise the DSS is still working, and turning off the clocks
	@@ -2056,7 +2130,7 @@ static void dispc_enable_lcd_out(enum omap_channel channel, bool enable)
	DSSERR("failed to unregister FRAMEDONE isr\n");		DSSERR("failed to unregister FRAMEDONE isr\n");
	}		}

	enable_clocks(0);		dispc_runtime_put();
	}		}

	static void _enable_digit_out(bool enable)		static void _enable_digit_out(bool enable)
	@@ -2069,10 +2143,10 @@ static void dispc_enable_digit_out(bool enable)
	struct completion frame_done_completion;		struct completion frame_done_completion;
	int r;		int r;

	enable_clocks(1);		dispc_runtime_get();

	if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {		if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
	enable_clocks(0);		dispc_runtime_put();
	return;		return;
	}		}

	@@ -2127,7 +2201,7 @@ static void dispc_enable_digit_out(bool enable)
	spin_unlock_irqrestore(&dispc.irq_lock, flags);		spin_unlock_irqrestore(&dispc.irq_lock, flags);
	}		}

	enable_clocks(0);		dispc_runtime_put();
	}		}

	bool dispc_is_channel_enabled(enum omap_channel channel)		bool dispc_is_channel_enabled(enum omap_channel channel)
	@@ -2158,9 +2232,9 @@ void dispc_lcd_enable_signal_polarity(bool act_high)
	if (!dss_has_feature(FEAT_LCDENABLEPOL))		if (!dss_has_feature(FEAT_LCDENABLEPOL))
	return;		return;

	enable_clocks(1);		dispc_runtime_get();
	REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);		REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_lcd_enable_signal(bool enable)		void dispc_lcd_enable_signal(bool enable)
	@@ -2168,9 +2242,9 @@ void dispc_lcd_enable_signal(bool enable)
	if (!dss_has_feature(FEAT_LCDENABLESIGNAL))		if (!dss_has_feature(FEAT_LCDENABLESIGNAL))
	return;		return;

	enable_clocks(1);		dispc_runtime_get();
	REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);		REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_pck_free_enable(bool enable)		void dispc_pck_free_enable(bool enable)
	@@ -2178,19 +2252,19 @@ void dispc_pck_free_enable(bool enable)
	if (!dss_has_feature(FEAT_PCKFREEENABLE))		if (!dss_has_feature(FEAT_PCKFREEENABLE))
	return;		return;

	enable_clocks(1);		dispc_runtime_get();
	REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);		REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_enable_fifohandcheck(enum omap_channel channel, bool enable)		void dispc_enable_fifohandcheck(enum omap_channel channel, bool enable)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	if (channel == OMAP_DSS_CHANNEL_LCD2)		if (channel == OMAP_DSS_CHANNEL_LCD2)
	REG_FLD_MOD(DISPC_CONFIG2, enable ? 1 : 0, 16, 16);		REG_FLD_MOD(DISPC_CONFIG2, enable ? 1 : 0, 16, 16);
	else		else
	REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);		REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
	enable_clocks(0);		dispc_runtime_put();
	}		}


	@@ -2213,27 +2287,27 @@ void dispc_set_lcd_display_type(enum omap_channel channel,
	return;		return;
	}		}

	enable_clocks(1);		dispc_runtime_get();
	if (channel == OMAP_DSS_CHANNEL_LCD2)		if (channel == OMAP_DSS_CHANNEL_LCD2)
	REG_FLD_MOD(DISPC_CONTROL2, mode, 3, 3);		REG_FLD_MOD(DISPC_CONTROL2, mode, 3, 3);
	else		else
	REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);		REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_set_loadmode(enum omap_dss_load_mode mode)		void dispc_set_loadmode(enum omap_dss_load_mode mode)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);		REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
	enable_clocks(0);		dispc_runtime_put();
	}		}


	void dispc_set_default_color(enum omap_channel channel, u32 color)		void dispc_set_default_color(enum omap_channel channel, u32 color)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	dispc_write_reg(DISPC_DEFAULT_COLOR(channel), color);		dispc_write_reg(DISPC_DEFAULT_COLOR(channel), color);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	u32 dispc_get_default_color(enum omap_channel channel)		u32 dispc_get_default_color(enum omap_channel channel)
	@@ -2244,9 +2318,9 @@ u32 dispc_get_default_color(enum omap_channel channel)
	channel != OMAP_DSS_CHANNEL_LCD &&		channel != OMAP_DSS_CHANNEL_LCD &&
	channel != OMAP_DSS_CHANNEL_LCD2);		channel != OMAP_DSS_CHANNEL_LCD2);

	enable_clocks(1);		dispc_runtime_get();
	l = dispc_read_reg(DISPC_DEFAULT_COLOR(channel));		l = dispc_read_reg(DISPC_DEFAULT_COLOR(channel));
	enable_clocks(0);		dispc_runtime_put();

	return l;		return l;
	}		}
	@@ -2255,7 +2329,7 @@ void dispc_set_trans_key(enum omap_channel ch,
	enum omap_dss_trans_key_type type,		enum omap_dss_trans_key_type type,
	u32 trans_key)		u32 trans_key)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	if (ch == OMAP_DSS_CHANNEL_LCD)		if (ch == OMAP_DSS_CHANNEL_LCD)
	REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);		REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
	else if (ch == OMAP_DSS_CHANNEL_DIGIT)		else if (ch == OMAP_DSS_CHANNEL_DIGIT)
	@@ -2264,14 +2338,14 @@ void dispc_set_trans_key(enum omap_channel ch,
	REG_FLD_MOD(DISPC_CONFIG2, type, 11, 11);		REG_FLD_MOD(DISPC_CONFIG2, type, 11, 11);

	dispc_write_reg(DISPC_TRANS_COLOR(ch), trans_key);		dispc_write_reg(DISPC_TRANS_COLOR(ch), trans_key);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_get_trans_key(enum omap_channel ch,		void dispc_get_trans_key(enum omap_channel ch,
	enum omap_dss_trans_key_type *type,		enum omap_dss_trans_key_type *type,
	u32 *trans_key)		u32 *trans_key)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	if (type) {		if (type) {
	if (ch == OMAP_DSS_CHANNEL_LCD)		if (ch == OMAP_DSS_CHANNEL_LCD)
	*type = REG_GET(DISPC_CONFIG, 11, 11);		*type = REG_GET(DISPC_CONFIG, 11, 11);
	@@ -2285,33 +2359,33 @@ void dispc_get_trans_key(enum omap_channel ch,

	if (trans_key)		if (trans_key)
	*trans_key = dispc_read_reg(DISPC_TRANS_COLOR(ch));		*trans_key = dispc_read_reg(DISPC_TRANS_COLOR(ch));
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_enable_trans_key(enum omap_channel ch, bool enable)		void dispc_enable_trans_key(enum omap_channel ch, bool enable)
	{		{
	enable_clocks(1);		dispc_runtime_get();
	if (ch == OMAP_DSS_CHANNEL_LCD)		if (ch == OMAP_DSS_CHANNEL_LCD)
	REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);		REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
	else if (ch == OMAP_DSS_CHANNEL_DIGIT)		else if (ch == OMAP_DSS_CHANNEL_DIGIT)
	REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);		REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
	else /* OMAP_DSS_CHANNEL_LCD2 */		else /* OMAP_DSS_CHANNEL_LCD2 */
	REG_FLD_MOD(DISPC_CONFIG2, enable, 10, 10);		REG_FLD_MOD(DISPC_CONFIG2, enable, 10, 10);
	enable_clocks(0);		dispc_runtime_put();
	}		}
	void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)		void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)
	{		{
	if (!dss_has_feature(FEAT_GLOBAL_ALPHA))		if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
	return;		return;

	enable_clocks(1);		dispc_runtime_get();
	if (ch == OMAP_DSS_CHANNEL_LCD)		if (ch == OMAP_DSS_CHANNEL_LCD)
	REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);		REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
	else if (ch == OMAP_DSS_CHANNEL_DIGIT)		else if (ch == OMAP_DSS_CHANNEL_DIGIT)
	REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);		REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
	else /* OMAP_DSS_CHANNEL_LCD2 */		else /* OMAP_DSS_CHANNEL_LCD2 */
	REG_FLD_MOD(DISPC_CONFIG2, enable, 18, 18);		REG_FLD_MOD(DISPC_CONFIG2, enable, 18, 18);
	enable_clocks(0);		dispc_runtime_put();
	}		}
	bool dispc_alpha_blending_enabled(enum omap_channel ch)		bool dispc_alpha_blending_enabled(enum omap_channel ch)
	{		{
	@@ -2320,7 +2394,7 @@ bool dispc_alpha_blending_enabled(enum omap_channel ch)
	if (!dss_has_feature(FEAT_GLOBAL_ALPHA))		if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
	return false;		return false;

	enable_clocks(1);		dispc_runtime_get();
	if (ch == OMAP_DSS_CHANNEL_LCD)		if (ch == OMAP_DSS_CHANNEL_LCD)
	enabled = REG_GET(DISPC_CONFIG, 18, 18);		enabled = REG_GET(DISPC_CONFIG, 18, 18);
	else if (ch == OMAP_DSS_CHANNEL_DIGIT)		else if (ch == OMAP_DSS_CHANNEL_DIGIT)
	@@ -2329,7 +2403,7 @@ bool dispc_alpha_blending_enabled(enum omap_channel ch)
	enabled = REG_GET(DISPC_CONFIG2, 18, 18);		enabled = REG_GET(DISPC_CONFIG2, 18, 18);
	else		else
	BUG();		BUG();
	enable_clocks(0);		dispc_runtime_put();

	return enabled;		return enabled;
	}		}
	@@ -2339,7 +2413,7 @@ bool dispc_trans_key_enabled(enum omap_channel ch)
	{		{
	bool enabled;		bool enabled;

	enable_clocks(1);		dispc_runtime_get();
	if (ch == OMAP_DSS_CHANNEL_LCD)		if (ch == OMAP_DSS_CHANNEL_LCD)
	enabled = REG_GET(DISPC_CONFIG, 10, 10);		enabled = REG_GET(DISPC_CONFIG, 10, 10);
	else if (ch == OMAP_DSS_CHANNEL_DIGIT)		else if (ch == OMAP_DSS_CHANNEL_DIGIT)
	@@ -2348,7 +2422,7 @@ bool dispc_trans_key_enabled(enum omap_channel ch)
	enabled = REG_GET(DISPC_CONFIG2, 10, 10);		enabled = REG_GET(DISPC_CONFIG2, 10, 10);
	else		else
	BUG();		BUG();
	enable_clocks(0);		dispc_runtime_put();

	return enabled;		return enabled;
	}		}
	@@ -2376,12 +2450,12 @@ void dispc_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
	return;		return;
	}		}

	enable_clocks(1);		dispc_runtime_get();
	if (channel == OMAP_DSS_CHANNEL_LCD2)		if (channel == OMAP_DSS_CHANNEL_LCD2)
	REG_FLD_MOD(DISPC_CONTROL2, code, 9, 8);		REG_FLD_MOD(DISPC_CONTROL2, code, 9, 8);
	else		else
	REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);		REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_set_parallel_interface_mode(enum omap_channel channel,		void dispc_set_parallel_interface_mode(enum omap_channel channel,
	@@ -2413,7 +2487,7 @@ void dispc_set_parallel_interface_mode(enum omap_channel channel,
	return;		return;
	}		}

	enable_clocks(1);		dispc_runtime_get();

	if (channel == OMAP_DSS_CHANNEL_LCD2) {		if (channel == OMAP_DSS_CHANNEL_LCD2) {
	l = dispc_read_reg(DISPC_CONTROL2);		l = dispc_read_reg(DISPC_CONTROL2);
	@@ -2427,7 +2501,7 @@ void dispc_set_parallel_interface_mode(enum omap_channel channel,
	dispc_write_reg(DISPC_CONTROL, l);		dispc_write_reg(DISPC_CONTROL, l);
	}		}

	enable_clocks(0);		dispc_runtime_put();
	}		}

	static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,		static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
	@@ -2480,10 +2554,10 @@ static void _dispc_set_lcd_timings(enum omap_channel channel, int hsw,
	FLD_VAL(vbp, 31, 20);		FLD_VAL(vbp, 31, 20);
	}		}

	enable_clocks(1);		dispc_runtime_get();
	dispc_write_reg(DISPC_TIMING_H(channel), timing_h);		dispc_write_reg(DISPC_TIMING_H(channel), timing_h);
	dispc_write_reg(DISPC_TIMING_V(channel), timing_v);		dispc_write_reg(DISPC_TIMING_V(channel), timing_v);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	/* change name to mode? */		/* change name to mode? */
	@@ -2526,10 +2600,10 @@ static void dispc_set_lcd_divisor(enum omap_channel channel, u16 lck_div,
	BUG_ON(lck_div < 1);		BUG_ON(lck_div < 1);
	BUG_ON(pck_div < 2);		BUG_ON(pck_div < 2);

	enable_clocks(1);		dispc_runtime_get();
	dispc_write_reg(DISPC_DIVISORo(channel),		dispc_write_reg(DISPC_DIVISORo(channel),
	FLD_VAL(lck_div, 23, 16) \| FLD_VAL(pck_div, 7, 0));		FLD_VAL(lck_div, 23, 16) \| FLD_VAL(pck_div, 7, 0));
	enable_clocks(0);		dispc_runtime_put();
	}		}

	static void dispc_get_lcd_divisor(enum omap_channel channel, int *lck_div,		static void dispc_get_lcd_divisor(enum omap_channel channel, int *lck_div,
	@@ -2548,7 +2622,7 @@ unsigned long dispc_fclk_rate(void)

	switch (dss_get_dispc_clk_source()) {		switch (dss_get_dispc_clk_source()) {
	case OMAP_DSS_CLK_SRC_FCK:		case OMAP_DSS_CLK_SRC_FCK:
	r = dss_clk_get_rate(DSS_CLK_FCK);		r = clk_get_rate(dispc.dss_clk);
	break;		break;
	case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:		case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
	dsidev = dsi_get_dsidev_from_id(0);		dsidev = dsi_get_dsidev_from_id(0);
	@@ -2578,7 +2652,7 @@ unsigned long dispc_lclk_rate(enum omap_channel channel)

	switch (dss_get_lcd_clk_source(channel)) {		switch (dss_get_lcd_clk_source(channel)) {
	case OMAP_DSS_CLK_SRC_FCK:		case OMAP_DSS_CLK_SRC_FCK:
	r = dss_clk_get_rate(DSS_CLK_FCK);		r = clk_get_rate(dispc.dss_clk);
	break;		break;
	case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:		case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
	dsidev = dsi_get_dsidev_from_id(0);		dsidev = dsi_get_dsidev_from_id(0);
	@@ -2617,7 +2691,8 @@ void dispc_dump_clocks(struct seq_file *s)
	enum omap_dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();		enum omap_dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
	enum omap_dss_clk_source lcd_clk_src;		enum omap_dss_clk_source lcd_clk_src;

	enable_clocks(1);		if (dispc_runtime_get())
			return;

	seq_printf(s, "- DISPC -\n");		seq_printf(s, "- DISPC -\n");

	@@ -2665,7 +2740,8 @@ void dispc_dump_clocks(struct seq_file *s)
	seq_printf(s, "pck\t\t%-16lupck div\t%u\n",		seq_printf(s, "pck\t\t%-16lupck div\t%u\n",
	dispc_pclk_rate(OMAP_DSS_CHANNEL_LCD2), pcd);		dispc_pclk_rate(OMAP_DSS_CHANNEL_LCD2), pcd);
	}		}
	enable_clocks(0);
			dispc_runtime_put();
	}		}

	#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS		#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
	@@ -2720,7 +2796,8 @@ void dispc_dump_regs(struct seq_file *s)
	{		{
	#define DUMPREG(r) seq_printf(s, "%-50s %08x\n", #r, dispc_read_reg(r))		#define DUMPREG(r) seq_printf(s, "%-50s %08x\n", #r, dispc_read_reg(r))

	dss_clk_enable(DSS_CLK_ICK \| DSS_CLK_FCK);		if (dispc_runtime_get())
			return;

	DUMPREG(DISPC_REVISION);		DUMPREG(DISPC_REVISION);
	DUMPREG(DISPC_SYSCONFIG);		DUMPREG(DISPC_SYSCONFIG);
	@@ -2965,7 +3042,7 @@ void dispc_dump_regs(struct seq_file *s)
	DUMPREG(DISPC_OVL_PRELOAD(OMAP_DSS_VIDEO2));		DUMPREG(DISPC_OVL_PRELOAD(OMAP_DSS_VIDEO2));
	}		}

	dss_clk_disable(DSS_CLK_ICK \| DSS_CLK_FCK);		dispc_runtime_put();
	#undef DUMPREG		#undef DUMPREG
	}		}

	@@ -2986,9 +3063,9 @@ static void _dispc_set_pol_freq(enum omap_channel channel, bool onoff, bool rf,
	l \|= FLD_VAL(acbi, 11, 8);		l \|= FLD_VAL(acbi, 11, 8);
	l \|= FLD_VAL(acb, 7, 0);		l \|= FLD_VAL(acb, 7, 0);

	enable_clocks(1);		dispc_runtime_get();
	dispc_write_reg(DISPC_POL_FREQ(channel), l);		dispc_write_reg(DISPC_POL_FREQ(channel), l);
	enable_clocks(0);		dispc_runtime_put();
	}		}

	void dispc_set_pol_freq(enum omap_channel channel,		void dispc_set_pol_freq(enum omap_channel channel,
	@@ -3109,7 +3186,7 @@ static void _omap_dispc_set_irqs(void)
	mask \|= isr_data->mask;		mask \|= isr_data->mask;
	}		}

	enable_clocks(1);		dispc_runtime_get();

	old_mask = dispc_read_reg(DISPC_IRQENABLE);		old_mask = dispc_read_reg(DISPC_IRQENABLE);
	/* clear the irqstatus for newly enabled irqs */		/* clear the irqstatus for newly enabled irqs */
	@@ -3117,7 +3194,7 @@ static void _omap_dispc_set_irqs(void)

	dispc_write_reg(DISPC_IRQENABLE, mask);		dispc_write_reg(DISPC_IRQENABLE, mask);

	enable_clocks(0);		dispc_runtime_put();
	}		}

	int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)		int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
	@@ -3626,13 +3703,6 @@ static void _omap_dispc_initial_config(void)
	{		{
	u32 l;		u32 l;

	l = dispc_read_reg(DISPC_SYSCONFIG);
	l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
	l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
	l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
	l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
	dispc_write_reg(DISPC_SYSCONFIG, l);

	/* Exclusively enable DISPC_CORE_CLK and set divider to 1 */		/* Exclusively enable DISPC_CORE_CLK and set divider to 1 */
	if (dss_has_feature(FEAT_CORE_CLK_DIV)) {		if (dss_has_feature(FEAT_CORE_CLK_DIV)) {
	l = dispc_read_reg(DISPC_DIVISOR);		l = dispc_read_reg(DISPC_DIVISOR);
	@@ -3664,9 +3734,9 @@ int dispc_enable_plane(enum omap_plane plane, bool enable)
	{		{
	DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);		DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);

	enable_clocks(1);		dispc_runtime_get();
	_dispc_enable_plane(plane, enable);		_dispc_enable_plane(plane, enable);
	enable_clocks(0);		dispc_runtime_put();

	return 0;		return 0;
	}		}
	@@ -3693,7 +3763,7 @@ int dispc_setup_plane(enum omap_plane plane,
	ilace, color_mode,		ilace, color_mode,
	rotation, mirror, channel);		rotation, mirror, channel);

	enable_clocks(1);		dispc_runtime_get();

	r = _dispc_setup_plane(plane,		r = _dispc_setup_plane(plane,
	paddr, screen_width,		paddr, screen_width,
	@@ -3707,7 +3777,7 @@ int dispc_setup_plane(enum omap_plane plane,
	pre_mult_alpha,		pre_mult_alpha,
	channel, puv_addr);		channel, puv_addr);

	enable_clocks(0);		dispc_runtime_put();

	return r;		return r;
	}		}
	@@ -3718,9 +3788,19 @@ static int omap_dispchw_probe(struct platform_device *pdev)
	u32 rev;		u32 rev;
	int r = 0;		int r = 0;
	struct resource *dispc_mem;		struct resource *dispc_mem;
			struct clk *clk;

	dispc.pdev = pdev;		dispc.pdev = pdev;

			clk = clk_get(&pdev->dev, "fck");
			if (IS_ERR(clk)) {
			DSSERR("can't get fck\n");
			r = PTR_ERR(clk);
			goto err_get_clk;
			}

			dispc.dss_clk = clk;

	spin_lock_init(&dispc.irq_lock);		spin_lock_init(&dispc.irq_lock);

	#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS		#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
	@@ -3734,62 +3814,106 @@ static int omap_dispchw_probe(struct platform_device *pdev)
	if (!dispc_mem) {		if (!dispc_mem) {
	DSSERR("can't get IORESOURCE_MEM DISPC\n");		DSSERR("can't get IORESOURCE_MEM DISPC\n");
	r = -EINVAL;		r = -EINVAL;
	goto fail0;		goto err_ioremap;
	}		}
	dispc.base = ioremap(dispc_mem->start, resource_size(dispc_mem));		dispc.base = ioremap(dispc_mem->start, resource_size(dispc_mem));
	if (!dispc.base) {		if (!dispc.base) {
	DSSERR("can't ioremap DISPC\n");		DSSERR("can't ioremap DISPC\n");
	r = -ENOMEM;		r = -ENOMEM;
	goto fail0;		goto err_ioremap;
	}		}
	dispc.irq = platform_get_irq(dispc.pdev, 0);		dispc.irq = platform_get_irq(dispc.pdev, 0);
	if (dispc.irq < 0) {		if (dispc.irq < 0) {
	DSSERR("platform_get_irq failed\n");		DSSERR("platform_get_irq failed\n");
	r = -ENODEV;		r = -ENODEV;
	goto fail1;		goto err_irq;
	}		}

	r = request_irq(dispc.irq, omap_dispc_irq_handler, IRQF_SHARED,		r = request_irq(dispc.irq, omap_dispc_irq_handler, IRQF_SHARED,
	"OMAP DISPC", dispc.pdev);		"OMAP DISPC", dispc.pdev);
	if (r < 0) {		if (r < 0) {
	DSSERR("request_irq failed\n");		DSSERR("request_irq failed\n");
	goto fail1;		goto err_irq;
	}		}

	enable_clocks(1);		dispc_init_ctx_loss_count();

			pm_runtime_enable(&pdev->dev);

			r = dispc_runtime_get();
			if (r)
			goto err_runtime_get;

	_omap_dispc_initial_config();		_omap_dispc_initial_config();

	_omap_dispc_initialize_irq();		_omap_dispc_initialize_irq();

	dispc_save_context();

	rev = dispc_read_reg(DISPC_REVISION);		rev = dispc_read_reg(DISPC_REVISION);
	dev_dbg(&pdev->dev, "OMAP DISPC rev %d.%d\n",		dev_dbg(&pdev->dev, "OMAP DISPC rev %d.%d\n",
	FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));		FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));

	enable_clocks(0);		dispc_runtime_put();

	return 0;		return 0;
	fail1:
			err_runtime_get:
			pm_runtime_disable(&pdev->dev);
			free_irq(dispc.irq, dispc.pdev);
			err_irq:
	iounmap(dispc.base);		iounmap(dispc.base);
	fail0:		err_ioremap:
			clk_put(dispc.dss_clk);
			err_get_clk:
	return r;		return r;
	}		}

	static int omap_dispchw_remove(struct platform_device *pdev)		static int omap_dispchw_remove(struct platform_device *pdev)
	{		{
			pm_runtime_disable(&pdev->dev);

			clk_put(dispc.dss_clk);

	free_irq(dispc.irq, dispc.pdev);		free_irq(dispc.irq, dispc.pdev);
	iounmap(dispc.base);		iounmap(dispc.base);
	return 0;		return 0;
	}		}

			static int dispc_runtime_suspend(struct device *dev)
			{
			dispc_save_context();
			clk_disable(dispc.dss_clk);
			dss_runtime_put();

			return 0;
			}

			static int dispc_runtime_resume(struct device *dev)
			{
			int r;

			r = dss_runtime_get();
			if (r < 0)
			return r;

			clk_enable(dispc.dss_clk);
			if (dispc_need_ctx_restore())
			dispc_restore_context();

			return 0;
			}

			static const struct dev_pm_ops dispc_pm_ops = {
			.runtime_suspend = dispc_runtime_suspend,
			.runtime_resume = dispc_runtime_resume,
			};

	static struct platform_driver omap_dispchw_driver = {		static struct platform_driver omap_dispchw_driver = {
	.probe = omap_dispchw_probe,		.probe = omap_dispchw_probe,
	.remove = omap_dispchw_remove,		.remove = omap_dispchw_remove,
	.driver = {		.driver = {
	.name = "omapdss_dispc",		.name = "omapdss_dispc",
	.owner = THIS_MODULE,		.owner = THIS_MODULE,
			.pm = &dispc_pm_ops,
	},		},
	};		};

drivers/video/omap2/dss/dpi.c

+47 −23

Original line number	Original line	Diff line number	Diff line
	@@ -23,7 +23,6 @@
	#define DSS_SUBSYS_NAME "DPI"		#define DSS_SUBSYS_NAME "DPI"

	#include <linux/kernel.h>		#include <linux/kernel.h>
	#include <linux/clk.h>
	#include <linux/delay.h>		#include <linux/delay.h>
	#include <linux/err.h>		#include <linux/err.h>
	#include <linux/errno.h>		#include <linux/errno.h>
	@@ -130,8 +129,6 @@ static int dpi_set_mode(struct omap_dss_device *dssdev)
	bool is_tft;		bool is_tft;
	int r = 0;		int r = 0;

	dss_clk_enable(DSS_CLK_ICK \| DSS_CLK_FCK);

	dispc_set_pol_freq(dssdev->manager->id, dssdev->panel.config,		dispc_set_pol_freq(dssdev->manager->id, dssdev->panel.config,
	dssdev->panel.acbi, dssdev->panel.acb);		dssdev->panel.acbi, dssdev->panel.acb);

	@@ -144,7 +141,7 @@ static int dpi_set_mode(struct omap_dss_device *dssdev)
	r = dpi_set_dispc_clk(dssdev, is_tft, t->pixel_clock * 1000,		r = dpi_set_dispc_clk(dssdev, is_tft, t->pixel_clock * 1000,
	&fck, &lck_div, &pck_div);		&fck, &lck_div, &pck_div);
	if (r)		if (r)
	goto err0;		return r;

	pck = fck / lck_div / pck_div / 1000;		pck = fck / lck_div / pck_div / 1000;

	@@ -158,12 +155,10 @@ static int dpi_set_mode(struct omap_dss_device *dssdev)

	dispc_set_lcd_timings(dssdev->manager->id, t);		dispc_set_lcd_timings(dssdev->manager->id, t);

	err0:		return 0;
	dss_clk_disable(DSS_CLK_ICK \| DSS_CLK_FCK);
	return r;
	}		}

	static int dpi_basic_init(struct omap_dss_device *dssdev)		static void dpi_basic_init(struct omap_dss_device *dssdev)
	{		{
	bool is_tft;		bool is_tft;

	@@ -175,8 +170,6 @@ static int dpi_basic_init(struct omap_dss_device *dssdev)
	OMAP_DSS_LCD_DISPLAY_TFT : OMAP_DSS_LCD_DISPLAY_STN);		OMAP_DSS_LCD_DISPLAY_TFT : OMAP_DSS_LCD_DISPLAY_STN);
	dispc_set_tft_data_lines(dssdev->manager->id,		dispc_set_tft_data_lines(dssdev->manager->id,
	dssdev->phy.dpi.data_lines);		dssdev->phy.dpi.data_lines);

	return 0;
	}		}

	int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)		int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
	@@ -186,30 +179,38 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
	r = omap_dss_start_device(dssdev);		r = omap_dss_start_device(dssdev);
	if (r) {		if (r) {
	DSSERR("failed to start device\n");		DSSERR("failed to start device\n");
	goto err0;		goto err_start_dev;
	}		}

	if (cpu_is_omap34xx()) {		if (cpu_is_omap34xx()) {
	r = regulator_enable(dpi.vdds_dsi_reg);		r = regulator_enable(dpi.vdds_dsi_reg);
	if (r)		if (r)
	goto err1;		goto err_reg_enable;
	}		}

	dss_clk_enable(DSS_CLK_ICK \| DSS_CLK_FCK);		r = dss_runtime_get();
			if (r)
			goto err_get_dss;

	r = dpi_basic_init(dssdev);		r = dispc_runtime_get();
	if (r)		if (r)
	goto err2;		goto err_get_dispc;

			dpi_basic_init(dssdev);

	if (dpi_use_dsi_pll(dssdev)) {		if (dpi_use_dsi_pll(dssdev)) {
			r = dsi_runtime_get(dpi.dsidev);
			if (r)
			goto err_get_dsi;

	r = dsi_pll_init(dpi.dsidev, 0, 1);		r = dsi_pll_init(dpi.dsidev, 0, 1);
	if (r)		if (r)
	goto err2;		goto err_dsi_pll_init;
	}		}

	r = dpi_set_mode(dssdev);		r = dpi_set_mode(dssdev);
	if (r)		if (r)
	goto err3;		goto err_set_mode;

	mdelay(2);		mdelay(2);

	@@ -217,16 +218,22 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)

	return 0;		return 0;

	err3:		err_set_mode:
	if (dpi_use_dsi_pll(dssdev))		if (dpi_use_dsi_pll(dssdev))
	dsi_pll_uninit(dpi.dsidev, true);		dsi_pll_uninit(dpi.dsidev, true);
	err2:		err_dsi_pll_init:
	dss_clk_disable(DSS_CLK_ICK \| DSS_CLK_FCK);		if (dpi_use_dsi_pll(dssdev))
			dsi_runtime_put(dpi.dsidev);
			err_get_dsi:
			dispc_runtime_put();
			err_get_dispc:
			dss_runtime_put();
			err_get_dss:
	if (cpu_is_omap34xx())		if (cpu_is_omap34xx())
	regulator_disable(dpi.vdds_dsi_reg);		regulator_disable(dpi.vdds_dsi_reg);
	err1:		err_reg_enable:
	omap_dss_stop_device(dssdev);		omap_dss_stop_device(dssdev);
	err0:		err_start_dev:
	return r;		return r;
	}		}
	EXPORT_SYMBOL(omapdss_dpi_display_enable);		EXPORT_SYMBOL(omapdss_dpi_display_enable);
	@@ -238,9 +245,11 @@ void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
	if (dpi_use_dsi_pll(dssdev)) {		if (dpi_use_dsi_pll(dssdev)) {
	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
	dsi_pll_uninit(dpi.dsidev, true);		dsi_pll_uninit(dpi.dsidev, true);
			dsi_runtime_put(dpi.dsidev);
	}		}

	dss_clk_disable(DSS_CLK_ICK \| DSS_CLK_FCK);		dispc_runtime_put();
			dss_runtime_put();

	if (cpu_is_omap34xx())		if (cpu_is_omap34xx())
	regulator_disable(dpi.vdds_dsi_reg);		regulator_disable(dpi.vdds_dsi_reg);
	@@ -252,11 +261,26 @@ EXPORT_SYMBOL(omapdss_dpi_display_disable);
	void dpi_set_timings(struct omap_dss_device *dssdev,		void dpi_set_timings(struct omap_dss_device *dssdev,
	struct omap_video_timings *timings)		struct omap_video_timings *timings)
	{		{
			int r;

	DSSDBG("dpi_set_timings\n");		DSSDBG("dpi_set_timings\n");
	dssdev->panel.timings = *timings;		dssdev->panel.timings = *timings;
	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {		if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
			r = dss_runtime_get();
			if (r)
			return;

			r = dispc_runtime_get();
			if (r) {
			dss_runtime_put();
			return;
			}

	dpi_set_mode(dssdev);		dpi_set_mode(dssdev);
	dispc_go(dssdev->manager->id);		dispc_go(dssdev->manager->id);

			dispc_runtime_put();
			dss_runtime_put();
	}		}
	}		}
	EXPORT_SYMBOL(dpi_set_timings);		EXPORT_SYMBOL(dpi_set_timings);

drivers/video/omap2/dss/dsi.c

+155 −89

File changed.

Preview size limit exceeded, changes collapsed.

drivers/video/omap2/dss/dss.c

+77 −299

File changed.

Preview size limit exceeded, changes collapsed.

drivers/video/omap2/dss/dss.h

+15 −18

Original line number	Original line	Diff line number	Diff line
	@@ -103,14 +103,6 @@ enum omap_parallel_interface_mode {
	OMAP_DSS_PARALLELMODE_DSI,		OMAP_DSS_PARALLELMODE_DSI,
	};		};

	enum dss_clock {
	DSS_CLK_ICK = 1 << 0, /* DSS_L3_ICLK and DSS_L4_ICLK */
	DSS_CLK_FCK = 1 << 1, /* DSS1_ALWON_FCLK */
	DSS_CLK_SYSCK = 1 << 2, /* DSS2_ALWON_FCLK */
	DSS_CLK_TVFCK = 1 << 3, /* DSS_TV_FCLK */
	DSS_CLK_VIDFCK = 1 << 4, /* DSS_96M_FCLK*/
	};

	enum dss_hdmi_venc_clk_source_select {		enum dss_hdmi_venc_clk_source_select {
	DSS_VENC_TV_CLK = 0,		DSS_VENC_TV_CLK = 0,
	DSS_HDMI_M_PCLK = 1,		DSS_HDMI_M_PCLK = 1,
	@@ -214,12 +206,10 @@ void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
	int dss_init_platform_driver(void);		int dss_init_platform_driver(void);
	void dss_uninit_platform_driver(void);		void dss_uninit_platform_driver(void);

			int dss_runtime_get(void);
			void dss_runtime_put(void);

	void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);		void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
	void dss_save_context(void);
	void dss_restore_context(void);
	void dss_clk_enable(enum dss_clock clks);
	void dss_clk_disable(enum dss_clock clks);
	unsigned long dss_clk_get_rate(enum dss_clock clk);
	const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);		const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);
	void dss_dump_clocks(struct seq_file *s);		void dss_dump_clocks(struct seq_file *s);

	@@ -276,15 +266,15 @@ struct file_operations;
	int dsi_init_platform_driver(void);		int dsi_init_platform_driver(void);
	void dsi_uninit_platform_driver(void);		void dsi_uninit_platform_driver(void);

			int dsi_runtime_get(struct platform_device *dsidev);
			void dsi_runtime_put(struct platform_device *dsidev);

	void dsi_dump_clocks(struct seq_file *s);		void dsi_dump_clocks(struct seq_file *s);
	void dsi_create_debugfs_files_irq(struct dentry *debugfs_dir,		void dsi_create_debugfs_files_irq(struct dentry *debugfs_dir,
	const struct file_operations *debug_fops);		const struct file_operations *debug_fops);
	void dsi_create_debugfs_files_reg(struct dentry *debugfs_dir,		void dsi_create_debugfs_files_reg(struct dentry *debugfs_dir,
	const struct file_operations *debug_fops);		const struct file_operations *debug_fops);

	void dsi_save_context(void);
	void dsi_restore_context(void);

	int dsi_init_display(struct omap_dss_device *display);		int dsi_init_display(struct omap_dss_device *display);
	void dsi_irq_handler(void);		void dsi_irq_handler(void);
	unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev);		unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev);
	@@ -310,6 +300,13 @@ static inline int dsi_init_platform_driver(void)
	static inline void dsi_uninit_platform_driver(void)		static inline void dsi_uninit_platform_driver(void)
	{		{
	}		}
			static inline int dsi_runtime_get(struct platform_device *dsidev)
			{
			return 0;
			}
			static inline void dsi_runtime_put(struct platform_device *dsidev)
			{
			}
	static inline unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev)		static inline unsigned long dsi_get_pll_hsdiv_dispc_rate(struct platform_device *dsidev)
	{		{
	WARN("%s: DSI not compiled in, returning rate as 0\n", __func__);		WARN("%s: DSI not compiled in, returning rate as 0\n", __func__);
	@@ -377,8 +374,8 @@ void dispc_dump_regs(struct seq_file *s);
	void dispc_irq_handler(void);		void dispc_irq_handler(void);
	void dispc_fake_vsync_irq(void);		void dispc_fake_vsync_irq(void);

	void dispc_save_context(void);		int dispc_runtime_get(void);
	void dispc_restore_context(void);		void dispc_runtime_put(void);

	void dispc_enable_sidle(void);		void dispc_enable_sidle(void);
	void dispc_disable_sidle(void);		void dispc_disable_sidle(void);

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