89 	struct ipu_prg *prg;  in ipu_prg_lookup_by_phandle()  local
92 	list_for_each_entry(prg, &ipu_prg_list, list) {  in ipu_prg_lookup_by_phandle()
93 		if (prg_node == prg->dev->of_node) {  in ipu_prg_lookup_by_phandle()
95 			device_link_add(dev, prg->dev,  in ipu_prg_lookup_by_phandle()
97 			prg->id = ipu_id;  in ipu_prg_lookup_by_phandle()
99 			return prg;  in ipu_prg_lookup_by_phandle()
145 	struct ipu_prg *prg = ipu->prg_priv;  in ipu_prg_enable()  local
147 	if (!prg)  in ipu_prg_enable()
150 	return pm_runtime_get_sync(prg->dev);  in ipu_prg_enable()
156 	struct ipu_prg *prg = ipu->prg_priv;  in ipu_prg_disable()  local
158 	if (!prg)  in ipu_prg_disable()
161 	pm_runtime_put(prg->dev);  in ipu_prg_disable()
173 	 * This isn't clearly documented in the RM, but IPU to PRG channel  in ipu_prg_ipu_to_prg_chan()
189 static int ipu_prg_get_pre(struct ipu_prg *prg, int prg_chan)  in ipu_prg_get_pre()  argument
195 		ret = ipu_pre_get(prg->pres[0]);  in ipu_prg_get_pre()
198 		prg->chan[prg_chan].used_pre = 0;  in ipu_prg_get_pre()
203 		ret = ipu_pre_get(prg->pres[i]);  in ipu_prg_get_pre()
208 			prg->chan[prg_chan].used_pre = i;  in ipu_prg_get_pre()
210 			/* configure the PRE to PRG channel mux */  in ipu_prg_get_pre()
212 			mux = (prg->id << 1) | (prg_chan - 1);  in ipu_prg_get_pre()
213 			regmap_update_bits(prg->iomuxc_gpr, IOMUXC_GPR5,  in ipu_prg_get_pre()
218 			regmap_read(prg->iomuxc_gpr, IOMUXC_GPR5, &val);  in ipu_prg_get_pre()
220 				regmap_update_bits(prg->iomuxc_gpr, IOMUXC_GPR5,  in ipu_prg_get_pre()
230 	dev_err(prg->dev, "could not get PRE for PRG chan %d", prg_chan);  in ipu_prg_get_pre()
234 static void ipu_prg_put_pre(struct ipu_prg *prg, int prg_chan)  in ipu_prg_put_pre()  argument
236 	struct ipu_prg_channel *chan = &prg->chan[prg_chan];  in ipu_prg_put_pre()
238 	ipu_pre_put(prg->pres[chan->used_pre]);  in ipu_prg_put_pre()
245 	struct ipu_prg *prg = ipu_chan->ipu->prg_priv;  in ipu_prg_channel_disable()  local
252 	chan = &prg->chan[prg_chan];  in ipu_prg_channel_disable()
256 	pm_runtime_get_sync(prg->dev);  in ipu_prg_channel_disable()
258 	val = readl(prg->regs + IPU_PRG_CTL);  in ipu_prg_channel_disable()
260 	writel(val, prg->regs + IPU_PRG_CTL);  in ipu_prg_channel_disable()
263 	writel(val, prg->regs + IPU_PRG_REG_UPDATE);  in ipu_prg_channel_disable()
265 	pm_runtime_put(prg->dev);  in ipu_prg_channel_disable()
267 	ipu_prg_put_pre(prg, prg_chan);  in ipu_prg_channel_disable()
279 	struct ipu_prg *prg = ipu_chan->ipu->prg_priv;  in ipu_prg_channel_configure()  local
287 	chan = &prg->chan[prg_chan];  in ipu_prg_channel_configure()
290 		ipu_pre_update(prg->pres[chan->used_pre], modifier, *eba);  in ipu_prg_channel_configure()
294 	ret = ipu_prg_get_pre(prg, prg_chan);  in ipu_prg_channel_configure()
298 	ipu_pre_configure(prg->pres[chan->used_pre],  in ipu_prg_channel_configure()
302 	pm_runtime_get_sync(prg->dev);  in ipu_prg_channel_configure()
305 	writel(val, prg->regs + IPU_PRG_STRIDE(prg_chan));  in ipu_prg_channel_configure()
311 	writel(val, prg->regs + IPU_PRG_HEIGHT(prg_chan));  in ipu_prg_channel_configure()
313 	val = ipu_pre_get_baddr(prg->pres[chan->used_pre]);  in ipu_prg_channel_configure()
315 	writel(val, prg->regs + IPU_PRG_BADDR(prg_chan));  in ipu_prg_channel_configure()
317 	val = readl(prg->regs + IPU_PRG_CTL);  in ipu_prg_channel_configure()
324 	writel(val, prg->regs + IPU_PRG_CTL);  in ipu_prg_channel_configure()
327 	writel(val, prg->regs + IPU_PRG_REG_UPDATE);  in ipu_prg_channel_configure()
330 	readl_poll_timeout(prg->regs + IPU_PRG_STATUS, val,  in ipu_prg_channel_configure()
335 	pm_runtime_put(prg->dev);  in ipu_prg_channel_configure()
345 	struct ipu_prg *prg = ipu_chan->ipu->prg_priv;  in ipu_prg_channel_configure_pending()  local
351 	chan = &prg->chan[prg_chan];  in ipu_prg_channel_configure_pending()
354 	return ipu_pre_update_pending(prg->pres[chan->used_pre]);  in ipu_prg_channel_configure_pending()
361 	struct ipu_prg *prg;  in ipu_prg_probe()  local
365 	prg = devm_kzalloc(dev, sizeof(*prg), GFP_KERNEL);  in ipu_prg_probe()
366 	if (!prg)  in ipu_prg_probe()
369 	prg->regs = devm_platform_ioremap_resource(pdev, 0);  in ipu_prg_probe()
370 	if (IS_ERR(prg->regs))  in ipu_prg_probe()
371 		return PTR_ERR(prg->regs);  in ipu_prg_probe()
373 	prg->clk_ipg = devm_clk_get(dev, "ipg");  in ipu_prg_probe()
374 	if (IS_ERR(prg->clk_ipg))  in ipu_prg_probe()
375 		return PTR_ERR(prg->clk_ipg);  in ipu_prg_probe()
377 	prg->clk_axi = devm_clk_get(dev, "axi");  in ipu_prg_probe()
378 	if (IS_ERR(prg->clk_axi))  in ipu_prg_probe()
379 		return PTR_ERR(prg->clk_axi);  in ipu_prg_probe()
381 	prg->iomuxc_gpr =  in ipu_prg_probe()
383 	if (IS_ERR(prg->iomuxc_gpr))  in ipu_prg_probe()
384 		return PTR_ERR(prg->iomuxc_gpr);  in ipu_prg_probe()
387 		prg->pres[i] = ipu_pre_lookup_by_phandle(dev, "fsl,pres", i);  in ipu_prg_probe()
388 		if (!prg->pres[i])  in ipu_prg_probe()
392 	ret = clk_prepare_enable(prg->clk_ipg);  in ipu_prg_probe()
396 	ret = clk_prepare_enable(prg->clk_axi);  in ipu_prg_probe()
398 		clk_disable_unprepare(prg->clk_ipg);  in ipu_prg_probe()
403 	val = readl(prg->regs + IPU_PRG_CTL);  in ipu_prg_probe()
405 	writel(val, prg->regs + IPU_PRG_CTL);  in ipu_prg_probe()
408 	writel(0xffffffff, prg->regs + IPU_PRG_THD);  in ipu_prg_probe()
413 	prg->dev = dev;  in ipu_prg_probe()
414 	platform_set_drvdata(pdev, prg);  in ipu_prg_probe()
416 	list_add(&prg->list, &ipu_prg_list);  in ipu_prg_probe()
424 	struct ipu_prg *prg = platform_get_drvdata(pdev);  in ipu_prg_remove()  local
427 	list_del(&prg->list);  in ipu_prg_remove()
434 	struct ipu_prg *prg = dev_get_drvdata(dev);  in prg_suspend()  local
436 	clk_disable_unprepare(prg->clk_axi);  in prg_suspend()
437 	clk_disable_unprepare(prg->clk_ipg);  in prg_suspend()
444 	struct ipu_prg *prg = dev_get_drvdata(dev);  in prg_resume()  local
447 	ret = clk_prepare_enable(prg->clk_ipg);  in prg_resume()
451 	ret = clk_prepare_enable(prg->clk_axi);  in prg_resume()
453 		clk_disable_unprepare(prg->clk_ipg);  in prg_resume()
466 	{ .compatible = "fsl,imx6qp-prg", },
474 		.name	= "imx-ipu-prg",