示例#1
0
static void release_panel(struct device *dev,
		struct stmp3xxx_platform_fb_entry *pentry)
{
	stmp3xxx_lcdif_notify_clients(STMP3XXX_LCDIF_PANEL_RELEASE, pentry);
	uninit_pinmux_spi();
	uninit_pinmux();
	release_dotclk_panel();
	stmp3xxx_lcdif_dma_release();
	clk_disable(lcd_clk);
	clk_put(lcd_clk);
}
示例#2
0
static int init_panel(struct device *dev, dma_addr_t phys, int memsize,
		struct stmp3xxx_platform_fb_entry *pentry)
{
	int ret = 0;

	lcd_clk = clk_get(dev, "lcdif");
	if (IS_ERR(lcd_clk)) {
		ret = PTR_ERR(lcd_clk);
		goto out_1;
	}
	ret = clk_enable(lcd_clk);
	if (ret) {
		clk_put(lcd_clk);
		goto out_1;
	}
	ret = clk_set_rate(lcd_clk,
			1000000/pentry->cycle_time_ns); /* kHz */
	if (ret) {
		clk_disable(lcd_clk);
		clk_put(lcd_clk);
		goto out_1;
	}

	ret = init_pinmux();
	if (ret)
		goto out_1;
	ret = init_pinmux_spi();
	if (ret)
		goto out_2;
	init_panel_hw();

	ret = stmp3xxx_lcdif_dma_init(dev, phys, memsize, 0);
	if (ret)
		goto out_3;

	setup_dotclk_panel(DOTCLK_V_PULSE_WIDTH, DOTCLK_V_PERIOD,
			DOTCLK_V_WAIT_CNT, DOTCLK_V_ACTIVE,
			DOTCLK_H_PULSE_WIDTH, DOTCLK_H_PERIOD,
			DOTCLK_V_WAIT_CNT, DOTCLK_H_ACTIVE, 1);

	stmp3xxx_lcd_set_bl_pdata(pentry->bl_data);
	stmp3xxx_lcdif_notify_clients(STMP3XXX_LCDIF_PANEL_INIT, pentry);
	return 0;
out_3:
	uninit_pinmux_spi();
out_2:
	uninit_pinmux();
out_1:
	return ret;
}
static int init_panel(struct device *dev, dma_addr_t phys, int memsize,
		struct stmp3xxx_platform_fb_entry *pentry)
{
	int ret = 0;

	lcd_clk = clk_get(dev, "lcdif");
	if (IS_ERR(lcd_clk)) {
		ret = PTR_ERR(lcd_clk);
		goto out_1;
	}
	ret = clk_enable(lcd_clk);
	if (ret) {
		clk_put(lcd_clk);
		goto out_1;
	}
	ret = clk_set_rate(lcd_clk,
			1000000/pentry->cycle_time_ns); /* kHz */
	if (ret) {
		clk_disable(lcd_clk);
		clk_put(lcd_clk);
		goto out_1;
	}

	/*
	 * Make sure we do a high-to-low transition to reset the panel.
	 * First make it low for 100 msec, hi for 10 msec, low for 10 msec,
	 * then hi.
	 */
	HW_LCDIF_CTRL1_CLR(BM_LCDIF_CTRL1_RESET); /* low */
	mdelay(100);
	HW_LCDIF_CTRL1_SET(BM_LCDIF_CTRL1_RESET); /* high */
	mdelay(10);
	HW_LCDIF_CTRL1_CLR(BM_LCDIF_CTRL1_RESET); /* low */

	/* For the Samsung, Reset must be held low at least 30 uSec
	 * Therefore, we'll hold it low for about 10 mSec just to be sure.
	 * Then we'll wait 1 mSec afterwards.
	 */
	mdelay(10);
	HW_LCDIF_CTRL1_SET(BM_LCDIF_CTRL1_RESET); /* high */
	mdelay(1);

	ret = init_pinmux();
	if (ret)
		goto out_1;
	ret = init_pinmux_spi();
	if (ret)
		goto out_2;

	setup_dotclk_panel(DOTCLK_V_PULSE_WIDTH, DOTCLK_V_PERIOD,
			DOTCLK_V_WAIT_CNT, DOTCLK_V_ACTIVE,
			DOTCLK_H_PULSE_WIDTH, DOTCLK_H_PERIOD,
			DOTCLK_H_WAIT_CNT, DOTCLK_H_ACTIVE, 0);

	ret = stmp3xxx_lcdif_dma_init(dev, phys, memsize, 1);
	if (ret)
		goto out_3;

	stmp3xxx_lcd_set_bl_pdata(pentry->bl_data);
	stmp3xxx_lcdif_notify_clients(STMP3XXX_LCDIF_PANEL_INIT, pentry);
	return 0;
out_3:
	uninit_pinmux_spi();
out_2:
	uninit_pinmux();
out_1:
	return ret;
}