Lines Matching full:dpi
10 #define DSS_SUBSYS_NAME "DPI"
54 static enum dss_clk_source dpi_get_clk_src_dra7xx(struct dpi_data *dpi, in dpi_get_clk_src_dra7xx() argument
67 if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL1_1)) in dpi_get_clk_src_dra7xx()
73 if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL1_3)) in dpi_get_clk_src_dra7xx()
75 if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL2_3)) in dpi_get_clk_src_dra7xx()
81 if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL2_1)) in dpi_get_clk_src_dra7xx()
83 if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL1_3)) in dpi_get_clk_src_dra7xx()
94 static enum dss_clk_source dpi_get_clk_src(struct dpi_data *dpi) in dpi_get_clk_src() argument
96 enum omap_channel channel = dpi->output.dispc_channel; in dpi_get_clk_src()
99 * XXX we can't currently use DSI PLL for DPI with OMAP3, as the DSI PLL in dpi_get_clk_src()
100 * would also be used for DISPC fclk. Meaning, when the DPI output is in dpi_get_clk_src()
103 switch (dpi->dss_model) { in dpi_get_clk_src()
130 return dpi_get_clk_src_dra7xx(dpi, channel); in dpi_get_clk_src()
138 struct dpi_data *dpi; member
187 return dispc_div_calc(ctx->dpi->dss->dispc, dispc, in dpi_calc_hsdiv_cb()
204 return dss_pll_hsdiv_calc_a(ctx->dpi->pll, clkdco, in dpi_calc_pll_cb()
205 ctx->pck_min, dss_get_max_fck_rate(ctx->dpi->dss), in dpi_calc_pll_cb()
215 return dispc_div_calc(ctx->dpi->dss->dispc, fck, in dpi_calc_dss_cb()
220 static bool dpi_pll_clk_calc(struct dpi_data *dpi, unsigned long pck, in dpi_pll_clk_calc() argument
226 ctx->dpi = dpi; in dpi_pll_clk_calc()
227 ctx->clkout_idx = dss_pll_get_clkout_idx_for_src(dpi->clk_src); in dpi_pll_clk_calc()
229 clkin = clk_get_rate(dpi->pll->clkin); in dpi_pll_clk_calc()
231 if (dpi->pll->hw->type == DSS_PLL_TYPE_A) { in dpi_pll_clk_calc()
240 return dss_pll_calc_a(ctx->dpi->pll, clkin, in dpi_pll_clk_calc()
244 dss_pll_calc_b(dpi->pll, clkin, pck, &ctx->pll_cinfo); in dpi_pll_clk_calc()
255 static bool dpi_dss_clk_calc(struct dpi_data *dpi, unsigned long pck, in dpi_dss_clk_calc() argument
271 ctx->dpi = dpi; in dpi_dss_clk_calc()
278 ok = dss_div_calc(dpi->dss, pck, ctx->pck_min, in dpi_dss_clk_calc()
289 static int dpi_set_pll_clk(struct dpi_data *dpi, unsigned long pck_req) in dpi_set_pll_clk() argument
295 ok = dpi_pll_clk_calc(dpi, pck_req, &ctx); in dpi_set_pll_clk()
299 r = dss_pll_set_config(dpi->pll, &ctx.pll_cinfo); in dpi_set_pll_clk()
303 dss_select_lcd_clk_source(dpi->dss, dpi->output.dispc_channel, in dpi_set_pll_clk()
304 dpi->clk_src); in dpi_set_pll_clk()
306 dpi->mgr_config.clock_info = ctx.dispc_cinfo; in dpi_set_pll_clk()
311 static int dpi_set_dispc_clk(struct dpi_data *dpi, unsigned long pck_req) in dpi_set_dispc_clk() argument
317 ok = dpi_dss_clk_calc(dpi, pck_req, &ctx); in dpi_set_dispc_clk()
321 r = dss_set_fck_rate(dpi->dss, ctx.fck); in dpi_set_dispc_clk()
325 dpi->mgr_config.clock_info = ctx.dispc_cinfo; in dpi_set_dispc_clk()
330 static int dpi_set_mode(struct dpi_data *dpi) in dpi_set_mode() argument
334 if (dpi->pll) in dpi_set_mode()
335 r = dpi_set_pll_clk(dpi, dpi->pixelclock); in dpi_set_mode()
337 r = dpi_set_dispc_clk(dpi, dpi->pixelclock); in dpi_set_mode()
342 static void dpi_config_lcd_manager(struct dpi_data *dpi) in dpi_config_lcd_manager() argument
344 dpi->mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS; in dpi_config_lcd_manager()
346 dpi->mgr_config.stallmode = false; in dpi_config_lcd_manager()
347 dpi->mgr_config.fifohandcheck = false; in dpi_config_lcd_manager()
349 dpi->mgr_config.video_port_width = dpi->data_lines; in dpi_config_lcd_manager()
351 dpi->mgr_config.lcden_sig_polarity = 0; in dpi_config_lcd_manager()
353 dss_mgr_set_lcd_config(&dpi->output, &dpi->mgr_config); in dpi_config_lcd_manager()
356 static int dpi_clock_update(struct dpi_data *dpi, unsigned long *clock) in dpi_clock_update() argument
362 if (dpi->pll) { in dpi_clock_update()
363 if (!dpi_pll_clk_calc(dpi, *clock, &ctx)) in dpi_clock_update()
368 if (!dpi_dss_clk_calc(dpi, *clock, &ctx)) in dpi_clock_update()
397 static void dpi_init_pll(struct dpi_data *dpi) in dpi_init_pll() argument
401 if (dpi->pll) in dpi_init_pll()
404 dpi->clk_src = dpi_get_clk_src(dpi); in dpi_init_pll()
406 pll = dss_pll_find_by_src(dpi->dss, dpi->clk_src); in dpi_init_pll()
415 dpi->pll = pll; in dpi_init_pll()
425 struct dpi_data *dpi = drm_bridge_to_dpi(bridge); in dpi_bridge_attach() local
430 dpi_init_pll(dpi); in dpi_bridge_attach()
432 return drm_bridge_attach(bridge->encoder, dpi->output.next_bridge, in dpi_bridge_attach()
441 struct dpi_data *dpi = drm_bridge_to_dpi(bridge); in dpi_bridge_mode_valid() local
451 ret = dpi_clock_update(dpi, &clock); in dpi_bridge_mode_valid()
462 struct dpi_data *dpi = drm_bridge_to_dpi(bridge); in dpi_bridge_mode_fixup() local
466 ret = dpi_clock_update(dpi, &clock); in dpi_bridge_mode_fixup()
479 struct dpi_data *dpi = drm_bridge_to_dpi(bridge); in dpi_bridge_mode_set() local
481 dpi->pixelclock = adjusted_mode->clock * 1000; in dpi_bridge_mode_set()
486 struct dpi_data *dpi = drm_bridge_to_dpi(bridge); in dpi_bridge_enable() local
489 if (dpi->vdds_dsi_reg) { in dpi_bridge_enable()
490 r = regulator_enable(dpi->vdds_dsi_reg); in dpi_bridge_enable()
495 r = dispc_runtime_get(dpi->dss->dispc); in dpi_bridge_enable()
499 r = dss_dpi_select_source(dpi->dss, dpi->id, dpi->output.dispc_channel); in dpi_bridge_enable()
503 if (dpi->pll) { in dpi_bridge_enable()
504 r = dss_pll_enable(dpi->pll); in dpi_bridge_enable()
509 r = dpi_set_mode(dpi); in dpi_bridge_enable()
513 dpi_config_lcd_manager(dpi); in dpi_bridge_enable()
517 r = dss_mgr_enable(&dpi->output); in dpi_bridge_enable()
525 if (dpi->pll) in dpi_bridge_enable()
526 dss_pll_disable(dpi->pll); in dpi_bridge_enable()
529 dispc_runtime_put(dpi->dss->dispc); in dpi_bridge_enable()
531 if (dpi->vdds_dsi_reg) in dpi_bridge_enable()
532 regulator_disable(dpi->vdds_dsi_reg); in dpi_bridge_enable()
537 struct dpi_data *dpi = drm_bridge_to_dpi(bridge); in dpi_bridge_disable() local
539 dss_mgr_disable(&dpi->output); in dpi_bridge_disable()
541 if (dpi->pll) { in dpi_bridge_disable()
542 dss_select_lcd_clk_source(dpi->dss, dpi->output.dispc_channel, in dpi_bridge_disable()
544 dss_pll_disable(dpi->pll); in dpi_bridge_disable()
547 dispc_runtime_put(dpi->dss->dispc); in dpi_bridge_disable()
549 if (dpi->vdds_dsi_reg) in dpi_bridge_disable()
550 regulator_disable(dpi->vdds_dsi_reg); in dpi_bridge_disable()
562 static void dpi_bridge_init(struct dpi_data *dpi) in dpi_bridge_init() argument
564 dpi->bridge.funcs = &dpi_bridge_funcs; in dpi_bridge_init()
565 dpi->bridge.of_node = dpi->pdev->dev.of_node; in dpi_bridge_init()
566 dpi->bridge.type = DRM_MODE_CONNECTOR_DPI; in dpi_bridge_init()
568 drm_bridge_add(&dpi->bridge); in dpi_bridge_init()
571 static void dpi_bridge_cleanup(struct dpi_data *dpi) in dpi_bridge_cleanup() argument
573 drm_bridge_remove(&dpi->bridge); in dpi_bridge_cleanup()
581 * Return a hardcoded channel for the DPI output. This should work for
586 static enum omap_channel dpi_get_channel(struct dpi_data *dpi) in dpi_get_channel() argument
588 switch (dpi->dss_model) { in dpi_get_channel()
594 switch (dpi->id) { in dpi_get_channel()
616 static int dpi_init_output_port(struct dpi_data *dpi, struct device_node *port) in dpi_init_output_port() argument
618 struct omap_dss_device *out = &dpi->output; in dpi_init_output_port()
622 dpi_bridge_init(dpi); in dpi_init_output_port()
625 dpi->id = port_num <= 2 ? port_num : 0; in dpi_init_output_port()
629 out->name = "dpi.2"; in dpi_init_output_port()
632 out->name = "dpi.1"; in dpi_init_output_port()
636 out->name = "dpi.0"; in dpi_init_output_port()
640 out->dev = &dpi->pdev->dev; in dpi_init_output_port()
643 out->dispc_channel = dpi_get_channel(dpi); in dpi_init_output_port()
646 r = omapdss_device_init_output(out, &dpi->bridge); in dpi_init_output_port()
648 dpi_bridge_cleanup(dpi); in dpi_init_output_port()
659 struct dpi_data *dpi = port->data; in dpi_uninit_output_port() local
660 struct omap_dss_device *out = &dpi->output; in dpi_uninit_output_port()
665 dpi_bridge_cleanup(dpi); in dpi_uninit_output_port()
678 static int dpi_init_regulator(struct dpi_data *dpi) in dpi_init_regulator() argument
683 * The DPI uses the DSI VDDS on OMAP34xx, OMAP35xx, OMAP36xx, AM37xx and in dpi_init_regulator()
689 vdds_dsi = devm_regulator_get(&dpi->pdev->dev, "vdds_dsi"); in dpi_init_regulator()
696 dpi->vdds_dsi_reg = vdds_dsi; in dpi_init_regulator()
704 struct dpi_data *dpi; in dpi_init_port() local
709 dpi = devm_kzalloc(&pdev->dev, sizeof(*dpi), GFP_KERNEL); in dpi_init_port()
710 if (!dpi) in dpi_init_port()
724 dpi->data_lines = datalines; in dpi_init_port()
726 dpi->pdev = pdev; in dpi_init_port()
727 dpi->dss_model = dss_model; in dpi_init_port()
728 dpi->dss = dss; in dpi_init_port()
729 port->data = dpi; in dpi_init_port()
731 r = dpi_init_regulator(dpi); in dpi_init_port()
735 return dpi_init_output_port(dpi, port); in dpi_init_port()
740 struct dpi_data *dpi = port->data; in dpi_uninit_port() local
742 if (!dpi) in dpi_uninit_port()