Merge tag 'nand/for-6.13' into mtd/next

SPI-NAND changes:
A load of fixes to Winbond manufacturer driver have been done, plus a
structure constification.

Raw NAND changes:
The GPMI driver has been improved on the power management side.
The Davinci driver has been cleaned up.
A leak in the Atmel driver plus some typos in the core have been fixed.

Author: miquelraynal

MAINTAINERS

@@ -9028,6 +9028,7 @@ F:	drivers/net/ethernet/freescale/gianfar*
 
 FREESCALE GPMI NAND DRIVER
 M:	Han Xu <[email protected]>
+L:	[email protected]
 L:	[email protected]
 S:	Maintained
 F:	drivers/mtd/nand/raw/gpmi-nand/*

drivers/mtd/nand/ecc-mxic.c

@@ -723,21 +723,21 @@ static int mxic_ecc_finish_io_req_pipelined(struct nand_device *nand,
 	return ret;
 }
 
-static struct nand_ecc_engine_ops mxic_ecc_engine_external_ops = {
+static const struct nand_ecc_engine_ops mxic_ecc_engine_external_ops = {
 	.init_ctx = mxic_ecc_init_ctx_external,
 	.cleanup_ctx = mxic_ecc_cleanup_ctx,
 	.prepare_io_req = mxic_ecc_prepare_io_req_external,
 	.finish_io_req = mxic_ecc_finish_io_req_external,
 };
 
-static struct nand_ecc_engine_ops mxic_ecc_engine_pipelined_ops = {
+static const struct nand_ecc_engine_ops mxic_ecc_engine_pipelined_ops = {
 	.init_ctx = mxic_ecc_init_ctx_pipelined,
 	.cleanup_ctx = mxic_ecc_cleanup_ctx,
 	.prepare_io_req = mxic_ecc_prepare_io_req_pipelined,
 	.finish_io_req = mxic_ecc_finish_io_req_pipelined,
 };
 
-struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void)
+const struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void)
 {
 	return &mxic_ecc_engine_pipelined_ops;
 }

drivers/mtd/nand/ecc-sw-bch.c

@@ -384,7 +384,7 @@ static int nand_ecc_sw_bch_finish_io_req(struct nand_device *nand,
 	return max_bitflips;
 }
 
-static struct nand_ecc_engine_ops nand_ecc_sw_bch_engine_ops = {
+static const struct nand_ecc_engine_ops nand_ecc_sw_bch_engine_ops = {
 	.init_ctx = nand_ecc_sw_bch_init_ctx,
 	.cleanup_ctx = nand_ecc_sw_bch_cleanup_ctx,
 	.prepare_io_req = nand_ecc_sw_bch_prepare_io_req,

drivers/mtd/nand/ecc-sw-hamming.c

@@ -638,7 +638,7 @@ static int nand_ecc_sw_hamming_finish_io_req(struct nand_device *nand,
 	return max_bitflips;
 }
 
-static struct nand_ecc_engine_ops nand_ecc_sw_hamming_engine_ops = {
+static const struct nand_ecc_engine_ops nand_ecc_sw_hamming_engine_ops = {
 	.init_ctx = nand_ecc_sw_hamming_init_ctx,
 	.cleanup_ctx = nand_ecc_sw_hamming_cleanup_ctx,
 	.prepare_io_req = nand_ecc_sw_hamming_prepare_io_req,

drivers/mtd/nand/raw/atmel/pmecc.c

@@ -362,7 +362,7 @@ atmel_pmecc_create_user(struct atmel_pmecc *pmecc,
 	size = ALIGN(size, sizeof(s32));
 	size += (req->ecc.strength + 1) * sizeof(s32) * 3;
 
-	user = kzalloc(size, GFP_KERNEL);
+	user = devm_kzalloc(pmecc->dev, size, GFP_KERNEL);
 	if (!user)
 		return ERR_PTR(-ENOMEM);
 
@@ -408,12 +408,6 @@ atmel_pmecc_create_user(struct atmel_pmecc *pmecc,
 }
 EXPORT_SYMBOL_GPL(atmel_pmecc_create_user);
 
-void atmel_pmecc_destroy_user(struct atmel_pmecc_user *user)
-{
-	kfree(user);
-}
-EXPORT_SYMBOL_GPL(atmel_pmecc_destroy_user);
-
 static int get_strength(struct atmel_pmecc_user *user)
 {
 	const int *strengths = user->pmecc->caps->strengths;

drivers/mtd/nand/raw/atmel/pmecc.h

@@ -55,8 +55,6 @@ struct atmel_pmecc *devm_atmel_pmecc_get(struct device *dev);
 struct atmel_pmecc_user *
 atmel_pmecc_create_user(struct atmel_pmecc *pmecc,
 			struct atmel_pmecc_user_req *req);
-void atmel_pmecc_destroy_user(struct atmel_pmecc_user *user);
-
 void atmel_pmecc_reset(struct atmel_pmecc *pmecc);
 int atmel_pmecc_enable(struct atmel_pmecc_user *user, int op);
 void atmel_pmecc_disable(struct atmel_pmecc_user *user);

drivers/mtd/nand/raw/brcmnand/brcmnand.c

@@ -1561,7 +1561,7 @@ static int write_oob_to_regs(struct brcmnand_controller *ctrl, int i,
 				(oob[j + 2] <<  8) |
 				(oob[j + 3] <<  0));
 
-	/* handle the remaing bytes */
+	/* handle the remaining bytes */
 	while (j < tbytes)
 		plast[k++] = oob[j++];
 

drivers/mtd/nand/raw/cadence-nand-controller.c

@@ -1891,7 +1891,7 @@ static int cadence_nand_read_buf(struct cdns_nand_ctrl *cdns_ctrl,
 
 		int len_in_words = (data_dma_width == 4) ? len >> 2 : len >> 3;
 
-		/* read alingment data */
+		/* read alignment data */
 		if (data_dma_width == 4)
 			ioread32_rep(cdns_ctrl->io.virt, buf, len_in_words);
 #ifdef CONFIG_64BIT

drivers/mtd/nand/raw/cs553x_nand.c

@@ -26,7 +26,7 @@
 
 #define NR_CS553X_CONTROLLERS	4
 
-#define MSR_DIVIL_GLD_CAP	0x51400000	/* DIVIL capabilitiies */
+#define MSR_DIVIL_GLD_CAP	0x51400000	/* DIVIL capabilities */
 #define CAP_CS5535		0x2df000ULL
 #define CAP_CS5536		0x5df500ULL
 

drivers/mtd/nand/raw/davinci_nand.c

@@ -10,15 +10,15 @@
  *   Dirk Behme <[email protected]>
  */
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
 #include <linux/err.h>
 #include <linux/iopoll.h>
-#include <linux/mtd/rawnand.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/rawnand.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/slab.h>
-#include <linux/of.h>
 
 #define NRCSR_OFFSET		0x00
 #define NANDFCR_OFFSET		0x60
@@ -487,10 +487,10 @@ static const struct of_device_id davinci_nand_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, davinci_nand_of_match);
 
-static struct davinci_nand_pdata
-	*nand_davinci_get_pdata(struct platform_device *pdev)
+static struct davinci_nand_pdata *
+nand_davinci_get_pdata(struct platform_device *pdev)
 {
-	if (!dev_get_platdata(&pdev->dev) && pdev->dev.of_node) {
+	if (!dev_get_platdata(&pdev->dev)) {
 		struct davinci_nand_pdata *pdata;
 		const char *mode;
 		u32 prop;
@@ -501,40 +501,42 @@ static struct davinci_nand_pdata
 		pdev->dev.platform_data = pdata;
 		if (!pdata)
 			return ERR_PTR(-ENOMEM);
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-chipselect", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-chipselect", &prop))
 			pdata->core_chipsel = prop;
 		else
 			return ERR_PTR(-EINVAL);
 
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-mask-ale", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-mask-ale", &prop))
 			pdata->mask_ale = prop;
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-mask-cle", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-mask-cle", &prop))
 			pdata->mask_cle = prop;
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-mask-chipsel", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-mask-chipsel", &prop))
 			pdata->mask_chipsel = prop;
-		if (!of_property_read_string(pdev->dev.of_node,
-			"ti,davinci-ecc-mode", &mode)) {
+		if (!device_property_read_string(&pdev->dev,
+						 "ti,davinci-ecc-mode",
+						 &mode)) {
 			if (!strncmp("none", mode, 4))
 				pdata->engine_type = NAND_ECC_ENGINE_TYPE_NONE;
 			if (!strncmp("soft", mode, 4))
 				pdata->engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
 			if (!strncmp("hw", mode, 2))
 				pdata->engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST;
 		}
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-ecc-bits", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-ecc-bits", &prop))
 			pdata->ecc_bits = prop;
 
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-nand-buswidth", &prop) && prop == 16)
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-nand-buswidth",
+					      &prop) && prop == 16)
 			pdata->options |= NAND_BUSWIDTH_16;
 
-		if (of_property_read_bool(pdev->dev.of_node,
-			"ti,davinci-nand-use-bbt"))
+		if (device_property_read_bool(&pdev->dev,
+					      "ti,davinci-nand-use-bbt"))
 			pdata->bbt_options = NAND_BBT_USE_FLASH;
 
 		/*
@@ -548,17 +550,15 @@ static struct davinci_nand_pdata
 		 * then use "ti,davinci-nand" as the compatible in your
 		 * device-tree file.
 		 */
-		if (of_device_is_compatible(pdev->dev.of_node,
-					    "ti,keystone-nand")) {
+		if (device_is_compatible(&pdev->dev, "ti,keystone-nand"))
 			pdata->options |= NAND_NO_SUBPAGE_WRITE;
-		}
 	}
 
 	return dev_get_platdata(&pdev->dev);
 }
 #else
-static struct davinci_nand_pdata
-	*nand_davinci_get_pdata(struct platform_device *pdev)
+static struct davinci_nand_pdata *
+nand_davinci_get_pdata(struct platform_device *pdev)
 {
 	return dev_get_platdata(&pdev->dev);
 }

drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c

@@ -15,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/dma/mxs-dma.h>
 #include "gpmi-nand.h"
 #include "gpmi-regs.h"
@@ -737,9 +738,8 @@ static int bch_set_geometry(struct gpmi_nand_data *this)
 	if (ret)
 		return ret;
 
-	ret = pm_runtime_get_sync(this->dev);
+	ret = pm_runtime_resume_and_get(this->dev);
 	if (ret < 0) {
-		pm_runtime_put_autosuspend(this->dev);
 		return ret;
 	}
 
@@ -2761,15 +2761,9 @@ static int gpmi_nand_probe(struct platform_device *pdev)
 	if (ret)
 		goto exit_acquire_resources;
 
-	ret = __gpmi_enable_clk(this, true);
-	if (ret)
-		goto exit_acquire_resources;
-
+	pm_runtime_enable(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, 500);
 	pm_runtime_use_autosuspend(&pdev->dev);
-	pm_runtime_set_active(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
 
 	ret = gpmi_init(this);
 	if (ret)
@@ -2779,15 +2773,12 @@ static int gpmi_nand_probe(struct platform_device *pdev)
 	if (ret)
 		goto exit_nfc_init;
 
-	pm_runtime_mark_last_busy(&pdev->dev);
-	pm_runtime_put_autosuspend(&pdev->dev);
-
 	dev_info(this->dev, "driver registered.\n");
 
 	return 0;
 
 exit_nfc_init:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	release_resources(this);
 exit_acquire_resources:
@@ -2801,33 +2792,37 @@ static void gpmi_nand_remove(struct platform_device *pdev)
 	struct nand_chip *chip = &this->nand;
 	int ret;
 
-	pm_runtime_put_sync(&pdev->dev);
-	pm_runtime_disable(&pdev->dev);
-
 	ret = mtd_device_unregister(nand_to_mtd(chip));
 	WARN_ON(ret);
 	nand_cleanup(chip);
 	gpmi_free_dma_buffer(this);
 	release_resources(this);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int gpmi_pm_suspend(struct device *dev)
 {
-	struct gpmi_nand_data *this = dev_get_drvdata(dev);
+	int ret;
 
-	release_dma_channels(this);
-	return 0;
+	pinctrl_pm_select_sleep_state(dev);
+	ret = pm_runtime_force_suspend(dev);
+
+	return ret;
 }
 
 static int gpmi_pm_resume(struct device *dev)
 {
 	struct gpmi_nand_data *this = dev_get_drvdata(dev);
 	int ret;
 
-	ret = acquire_dma_channels(this);
-	if (ret < 0)
+	ret = pm_runtime_force_resume(dev);
+	if (ret) {
+		dev_err(this->dev, "Error in resume %d\n", ret);
 		return ret;
+	}
+
+	pinctrl_pm_select_default_state(dev);
 
 	/* re-init the GPMI registers */
 	ret = gpmi_init(this);
@@ -2849,31 +2844,41 @@ static int gpmi_pm_resume(struct device *dev)
 
 	return 0;
 }
-#endif /* CONFIG_PM_SLEEP */
 
-static int __maybe_unused gpmi_runtime_suspend(struct device *dev)
+#define gpmi_enable_clk(x)	__gpmi_enable_clk(x, true)
+#define gpmi_disable_clk(x)	__gpmi_enable_clk(x, false)
+
+static int gpmi_runtime_suspend(struct device *dev)
 {
 	struct gpmi_nand_data *this = dev_get_drvdata(dev);
 
-	return __gpmi_enable_clk(this, false);
+	gpmi_disable_clk(this);
+
+	return 0;
 }
 
-static int __maybe_unused gpmi_runtime_resume(struct device *dev)
+static int gpmi_runtime_resume(struct device *dev)
 {
 	struct gpmi_nand_data *this = dev_get_drvdata(dev);
+	int ret;
+
+	ret = gpmi_enable_clk(this);
+	if (ret)
+		return ret;
+
+	return 0;
 
-	return __gpmi_enable_clk(this, true);
 }
 
 static const struct dev_pm_ops gpmi_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(gpmi_pm_suspend, gpmi_pm_resume)
-	SET_RUNTIME_PM_OPS(gpmi_runtime_suspend, gpmi_runtime_resume, NULL)
+	SYSTEM_SLEEP_PM_OPS(gpmi_pm_suspend, gpmi_pm_resume)
+	RUNTIME_PM_OPS(gpmi_runtime_suspend, gpmi_runtime_resume, NULL)
 };
 
 static struct platform_driver gpmi_nand_driver = {
 	.driver = {
 		.name = "gpmi-nand",
-		.pm = &gpmi_pm_ops,
+		.pm = pm_ptr(&gpmi_pm_ops),
 		.of_match_table = gpmi_nand_id_table,
 	},
 	.probe = gpmi_nand_probe,

drivers/mtd/nand/raw/nand_macronix.c

@@ -113,7 +113,7 @@ static void macronix_nand_onfi_init(struct nand_chip *chip)
 	rand_otp = of_property_read_bool(dn, "mxic,enable-randomizer-otp");
 
 	mxic = (struct nand_onfi_vendor_macronix *)p->onfi->vendor;
-	/* Subpage write is prohibited in randomizer operatoin */
+	/* Subpage write is prohibited in randomizer operation */
 	if (rand_otp && chip->options & NAND_NO_SUBPAGE_WRITE &&
 	    mxic->reliability_func & MACRONIX_RANDOMIZER_BIT) {
 		if (p->supports_set_get_features) {

drivers/mtd/nand/raw/pl35x-nand-controller.c

@@ -187,7 +187,7 @@ static const struct mtd_ooblayout_ops pl35x_ecc_ooblayout16_ops = {
 	.free = pl35x_ecc_ooblayout16_free,
 };
 
-/* Generic flash bbt decriptors */
+/* Generic flash bbt descriptors */
 static u8 bbt_pattern[] = { 'B', 'b', 't', '0' };
 static u8 mirror_pattern[] = { '1', 't', 'b', 'B' };