C++ (Cpp) TO_CLK_DIVIDSION Examples

Example #1

File: dw-mipi-dsi.c Project: 513855417/linux

static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
{
	dsi_write(dsi, DSI_PWR_UP, RESET);
	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
		  | PHY_RSTZ | PHY_SHUTDOWNZ);
	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) |
		  TX_ESC_CLK_DIVIDSION(7));
	dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
}

Example #2

File: dw-mipi-dsi.c Project: krzk/linux

static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
{
	/*
	 * The maximum permitted escape clock is 20MHz and it is derived from
	 * lanebyteclk, which is running at "lane_mbps / 8".  Thus we want:
	 *
	 *     (lane_mbps >> 3) / esc_clk_division < 20
	 * which is:
	 *     (lane_mbps >> 3) / 20 > esc_clk_division
	 */
	u32 esc_clk_division = (dsi->lane_mbps >> 3) / 20 + 1;

	dsi_write(dsi, DSI_PWR_UP, RESET);
	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
		  | PHY_RSTZ | PHY_SHUTDOWNZ);
	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) |
		  TX_ESC_CLK_DIVIDSION(esc_clk_division));
}

static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi,
				   struct drm_display_mode *mode)
{
	u32 val = 0, color = 0;

	switch (dsi->format) {
	case MIPI_DSI_FMT_RGB888:
		color = DPI_COLOR_CODING_24BIT;
		break;
	case MIPI_DSI_FMT_RGB666:
		color = DPI_COLOR_CODING_18BIT_2 | EN18_LOOSELY;
		break;