ufs/host/ufs-renesas.c

1 // SPDX-License-Identifier: GPL-2.0 OR MIT
3  * Renesas UFS host controller driver
10 #include <linux/dma-mapping.h>
18 #include <ufs/ufshcd.h>
20 #include "ufshcd-pltfrm.h"
288 	WARN_ON(p->index >= MAX_INDEX);  in ufs_renesas_reg_control()
290 	switch (p->mode) {  in ufs_renesas_reg_control()
292 		ufshcd_writel(hba, save[p->index], p->reg);  in ufs_renesas_reg_control()
295 		save[p->index] |= p->u.set;  in ufs_renesas_reg_control()
298 		save[p->index] = ufshcd_readl(hba, p->reg) & p->mask;  in ufs_renesas_reg_control()
301 		ret = readl_poll_timeout_atomic(hba->mmio_base + p->reg,  in ufs_renesas_reg_control()
303 						(val & p->mask) == p->u.expected,  in ufs_renesas_reg_control()
306 			dev_err(hba->dev, "%s: poll failed %d (%08x, %08x, %08x)\n",  in ufs_renesas_reg_control()
307 				__func__, ret, val, p->mask, p->u.expected);  in ufs_renesas_reg_control()
310 		if (p->u.delay_us > 1000)  in ufs_renesas_reg_control()
311 			mdelay(DIV_ROUND_UP(p->u.delay_us, 1000));  in ufs_renesas_reg_control()
313 			udelay(p->u.delay_us);  in ufs_renesas_reg_control()
316 		ufshcd_writel(hba, p->u.val, p->reg);  in ufs_renesas_reg_control()
337 	if (priv->initialized)  in ufs_renesas_hce_enable_notify()
343 	priv->initialized = true;  in ufs_renesas_hce_enable_notify()
352 		pm_runtime_get_sync(hba->dev);  in ufs_renesas_setup_clocks()
354 		pm_runtime_put(hba->dev);  in ufs_renesas_setup_clocks()
363 	priv = devm_kzalloc(hba->dev, sizeof(*priv), GFP_KERNEL);  in ufs_renesas_init()
365 		return -ENOMEM;  in ufs_renesas_init()
368 	hba->quirks |= UFSHCD_QUIRK_HIBERN_FASTAUTO;  in ufs_renesas_init()
375 	return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32));  in ufs_renesas_set_dma_mask()
388 	{ .compatible = "renesas,r8a779f0-ufs" },
411 		.name	= "ufshcd-renesas",
418 MODULE_DESCRIPTION("Renesas UFS host controller driver");