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Groups > linux.kernel > #1316353 > unrolled thread

[PATCH V3 00/11] soc: mediatek: PMIC wrap: add MT6323/2701/7623 support

Started byJohn Crispin <blogic@openwrt.org>
First post2016-01-25 11:00 +0100
Last post2016-01-26 03:50 +0100
Articles 13 — 3 participants

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Contents

  [PATCH V3 00/11] soc: mediatek: PMIC wrap: add MT6323/2701/7623 support John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 09/11] soc: mediatek: PMIC wrap: add a slave specific struct John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
      Re: [PATCH V3 09/11] soc: mediatek: PMIC wrap: add a slave specific  struct Yingjoe Chen <yingjoe.chen@mediatek.com> - 2016-01-26 10:40 +0100
    [PATCH V3 06/11] soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for MT2701/7623 John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
      Re: [PATCH V3 06/11] soc: mediatek: PMIC wrap:: SPI_WRITE needs a  different bitmask for MT2701/7623 Yingjoe Chen <yingjoe.chen@mediatek.com> - 2016-01-26 13:50 +0100
    [PATCH V3 03/11] soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clock John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 02/11] soc: mediatek: PMIC wrap: don't duplicate the wrapper data John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 07/11] soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type struct John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 11/11] soc: mediatek: PMIC wrap: add MT2701/7623 support John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 05/11] soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for MT2701/7623 John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 04/11] soc: mediatek: PMIC wrap: split SoC specific init into callback John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
    [PATCH V3 01/11] dt-bindings: ARM: Mediatek: add MT2701/7623 string to the PMIC wrapper doc John Crispin <blogic@openwrt.org> - 2016-01-25 11:00 +0100
      Re: [PATCH V3 01/11] dt-bindings: ARM: Mediatek: add MT2701/7623  string to the PMIC wrapper doc Rob Herring <robh@kernel.org> - 2016-01-26 03:50 +0100

#1316353 — [PATCH V3 00/11] soc: mediatek: PMIC wrap: add MT6323/2701/7623 support

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 00/11] soc: mediatek: PMIC wrap: add MT6323/2701/7623 support
Message-ID<qUM6e-20J-7@gated-at.bofh.it>
Changes in V3:
* I accidentially sent a V2 about 15 minutes ago. Unfortunatley the time
  inside the VM that i used was wrong and lagged by 6 days. V3 is the same
  as V2 but with the correct time.

Changes in V2:
* rebase the code on the MTK internal driver

John Crispin (11):
  dt-bindings: ARM: Mediatek: add MT2701/7623 string to the PMIC
    wrapper doc
  soc: mediatek: PMIC wrap: don't duplicate the wrapper data
  soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clock
  soc: mediatek: PMIC wrap: split SoC specific init into callback
  soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for
    MT2701/7623
  soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for
    MT2701/7623
  soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type
    struct
  soc: mediatek: PMIC wrap: remove pwrap_is_mt8135() and
    pwrap_is_mt8173()
  soc: mediatek: PMIC wrap: add a slave specific struct
  soc: mediatek: PMIC wrap: add mt6323 slave support
  soc: mediatek: PMIC wrap: add MT2701/7623 support

 .../devicetree/bindings/soc/mediatek/pwrap.txt     |    1 +
 drivers/soc/mediatek/mtk-pmic-wrap.c               |  560 +++++++++++++++-----
 2 files changed, 430 insertions(+), 131 deletions(-)

-- 
1.7.10.4

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#1316357 — [PATCH V3 09/11] soc: mediatek: PMIC wrap: add a slave specific struct

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 09/11] soc: mediatek: PMIC wrap: add a slave specific struct
Message-ID<qUM6f-20J-21@gated-at.bofh.it>
In reply to#1316353
This patch adds a new struct pwrap_slv_type that we use to store the slave
specific data. The patch adds 2 new helper functions to access the dew
registers. The slave type is looked up via the wrappers child node.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |  170 +++++++++++++++++++++++++---------
 1 file changed, 124 insertions(+), 46 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 54553b4..21d8e5a 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -69,33 +69,64 @@
 					  PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE | \
 					  PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE)
 
-/* macro for slave device wrapper registers */
-#define PWRAP_DEW_BASE			0xbc00
-#define PWRAP_DEW_EVENT_OUT_EN		(PWRAP_DEW_BASE + 0x0)
-#define PWRAP_DEW_DIO_EN		(PWRAP_DEW_BASE + 0x2)
-#define PWRAP_DEW_EVENT_SRC_EN		(PWRAP_DEW_BASE + 0x4)
-#define PWRAP_DEW_EVENT_SRC		(PWRAP_DEW_BASE + 0x6)
-#define PWRAP_DEW_EVENT_FLAG		(PWRAP_DEW_BASE + 0x8)
-#define PWRAP_DEW_READ_TEST		(PWRAP_DEW_BASE + 0xa)
-#define PWRAP_DEW_WRITE_TEST		(PWRAP_DEW_BASE + 0xc)
-#define PWRAP_DEW_CRC_EN		(PWRAP_DEW_BASE + 0xe)
-#define PWRAP_DEW_CRC_VAL		(PWRAP_DEW_BASE + 0x10)
-#define PWRAP_DEW_MON_GRP_SEL		(PWRAP_DEW_BASE + 0x12)
-#define PWRAP_DEW_MON_FLAG_SEL		(PWRAP_DEW_BASE + 0x14)
-#define PWRAP_DEW_EVENT_TEST		(PWRAP_DEW_BASE + 0x16)
-#define PWRAP_DEW_CIPHER_KEY_SEL	(PWRAP_DEW_BASE + 0x18)
-#define PWRAP_DEW_CIPHER_IV_SEL		(PWRAP_DEW_BASE + 0x1a)
-#define PWRAP_DEW_CIPHER_LOAD		(PWRAP_DEW_BASE + 0x1c)
-#define PWRAP_DEW_CIPHER_START		(PWRAP_DEW_BASE + 0x1e)
-#define PWRAP_DEW_CIPHER_RDY		(PWRAP_DEW_BASE + 0x20)
-#define PWRAP_DEW_CIPHER_MODE		(PWRAP_DEW_BASE + 0x22)
-#define PWRAP_DEW_CIPHER_SWRST		(PWRAP_DEW_BASE + 0x24)
-#define PWRAP_MT8173_DEW_CIPHER_IV0	(PWRAP_DEW_BASE + 0x26)
-#define PWRAP_MT8173_DEW_CIPHER_IV1	(PWRAP_DEW_BASE + 0x28)
-#define PWRAP_MT8173_DEW_CIPHER_IV2	(PWRAP_DEW_BASE + 0x2a)
-#define PWRAP_MT8173_DEW_CIPHER_IV3	(PWRAP_DEW_BASE + 0x2c)
-#define PWRAP_MT8173_DEW_CIPHER_IV4	(PWRAP_DEW_BASE + 0x2e)
-#define PWRAP_MT8173_DEW_CIPHER_IV5	(PWRAP_DEW_BASE + 0x30)
+/* defines for slave device wrapper registers */
+enum dew_regs {
+	PWRAP_DEW_BASE,
+	PWRAP_DEW_EVENT_OUT_EN,
+	PWRAP_DEW_DIO_EN,
+	PWRAP_DEW_EVENT_SRC_EN,
+	PWRAP_DEW_EVENT_SRC,
+	PWRAP_DEW_EVENT_FLAG,
+	PWRAP_DEW_READ_TEST,
+	PWRAP_DEW_WRITE_TEST,
+	PWRAP_DEW_CRC_EN,
+	PWRAP_DEW_CRC_VAL,
+	PWRAP_DEW_MON_GRP_SEL,
+	PWRAP_DEW_MON_FLAG_SEL,
+	PWRAP_DEW_EVENT_TEST,
+	PWRAP_DEW_CIPHER_KEY_SEL,
+	PWRAP_DEW_CIPHER_IV_SEL,
+	PWRAP_DEW_CIPHER_LOAD,
+	PWRAP_DEW_CIPHER_START,
+	PWRAP_DEW_CIPHER_RDY,
+	PWRAP_DEW_CIPHER_MODE,
+	PWRAP_DEW_CIPHER_SWRST,
+	PWRAP_MT8173_DEW_CIPHER_IV0,
+	PWRAP_MT8173_DEW_CIPHER_IV1,
+	PWRAP_MT8173_DEW_CIPHER_IV2,
+	PWRAP_MT8173_DEW_CIPHER_IV3,
+	PWRAP_MT8173_DEW_CIPHER_IV4,
+	PWRAP_MT8173_DEW_CIPHER_IV5,
+};
+
+static const u32 mt6397_regs[] = {
+	[PWRAP_DEW_BASE] =		0xbc00,
+	[PWRAP_DEW_EVENT_OUT_EN] =	0xbc00,
+	[PWRAP_DEW_DIO_EN] =		0xbc02,
+	[PWRAP_DEW_EVENT_SRC_EN] =	0xbc04,
+	[PWRAP_DEW_EVENT_SRC] =		0xbc06,
+	[PWRAP_DEW_EVENT_FLAG] =	0xbc08,
+	[PWRAP_DEW_READ_TEST] =		0xbc0a,
+	[PWRAP_DEW_WRITE_TEST] =	0xbc0c,
+	[PWRAP_DEW_CRC_EN] =		0xbc0e,
+	[PWRAP_DEW_CRC_VAL] =		0xbc10,
+	[PWRAP_DEW_MON_GRP_SEL] =	0xbc12,
+	[PWRAP_DEW_MON_FLAG_SEL] =	0xbc14,
+	[PWRAP_DEW_EVENT_TEST] =	0xbc16,
+	[PWRAP_DEW_CIPHER_KEY_SEL] =	0xbc18,
+	[PWRAP_DEW_CIPHER_IV_SEL] =	0xbc1a,
+	[PWRAP_DEW_CIPHER_LOAD] =	0xbc1c,
+	[PWRAP_DEW_CIPHER_START] =	0xbc1e,
+	[PWRAP_DEW_CIPHER_RDY] =	0xbc20,
+	[PWRAP_DEW_CIPHER_MODE] =	0xbc22,
+	[PWRAP_DEW_CIPHER_SWRST] =	0xbc24,
+	[PWRAP_MT8173_DEW_CIPHER_IV0] = 0xbc26,
+	[PWRAP_MT8173_DEW_CIPHER_IV1] = 0xbc28,
+	[PWRAP_MT8173_DEW_CIPHER_IV2] = 0xbc2a,
+	[PWRAP_MT8173_DEW_CIPHER_IV3] = 0xbc2c,
+	[PWRAP_MT8173_DEW_CIPHER_IV4] = 0xbc2e,
+	[PWRAP_MT8173_DEW_CIPHER_IV5] = 0xbc30,
+};
 
 enum pwrap_regs {
 	PWRAP_MUX_SEL,
@@ -349,16 +380,26 @@ static int mt8135_regs[] = {
 	[PWRAP_DCM_DBC_PRD] =		0x160,
 };
 
+enum pmic_type {
+	PMIC_MT6397,
+};
+
 enum pwrap_type {
 	PWRAP_MT8135,
 	PWRAP_MT8173,
 };
 
+struct pwrap_slv_type {
+	const u32 *dew_regs;
+	enum pmic_type type;
+};
+
 struct pmic_wrapper {
 	struct device *dev;
 	void __iomem *base;
 	struct regmap *regmap;
 	const struct pmic_wrapper_type *master;
+	const struct pwrap_slv_type *slave;
 	struct clk *clk_spi;
 	struct clk *clk_wrap;
 	struct reset_control *rstc;
@@ -484,6 +525,16 @@ static int pwrap_read(struct pmic_wrapper *wrp, u32 adr, u32 *rdata)
 	return 0;
 }
 
+static int pwrap_dew_write(struct pmic_wrapper *wrp, u32 reg, u32 wdata)
+{
+	return pwrap_write(wrp, wrp->slave->dew_regs[reg], wdata);
+}
+
+static int pwrap_dew_read(struct pmic_wrapper *wrp, u32 reg, u32 *rdata)
+{
+	return pwrap_read(wrp, wrp->slave->dew_regs[reg], rdata);
+}
+
 static int pwrap_regmap_read(void *context, u32 adr, u32 *rdata)
 {
 	return pwrap_read(context, adr, rdata);
@@ -544,7 +595,7 @@ static int pwrap_init_sidly(struct pmic_wrapper *wrp)
 
 	for (i = 0; i < 4; i++) {
 		pwrap_writel(wrp, i, PWRAP_SIDLY);
-		pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
+		pwrap_dew_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
 		if (rdata == PWRAP_DEW_READ_TEST_VAL) {
 			dev_dbg(wrp->dev, "[Read Test] pass, SIDLY=%x\n", i);
 			pass |= 1 << i;
@@ -593,7 +644,7 @@ static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp)
 	u32 rdata;
 	int ret;
 
-	ret = pwrap_read(wrp, PWRAP_DEW_CIPHER_RDY, &rdata);
+	ret = pwrap_dew_read(wrp, PWRAP_DEW_CIPHER_RDY, &rdata);
 	if (ret)
 		return 0;
 
@@ -621,12 +672,12 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	}
 
 	/* Config cipher mode @PMIC */
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x1);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x0);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_KEY_SEL, 0x1);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_IV_SEL, 0x2);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1);
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_START, 0x1);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x1);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_SWRST, 0x0);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_KEY_SEL, 0x1);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_IV_SEL, 0x2);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_LOAD, 0x1);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_START, 0x1);
 
 	/* wait for cipher data ready@AP */
 	ret = pwrap_wait_for_state(wrp, pwrap_is_cipher_ready);
@@ -643,7 +694,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	}
 
 	/* wait for cipher mode idle */
-	pwrap_write(wrp, PWRAP_DEW_CIPHER_MODE, 0x1);
+	pwrap_dew_write(wrp, PWRAP_DEW_CIPHER_MODE, 0x1);
 	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle);
 	if (ret) {
 		dev_err(wrp->dev, "cipher mode idle fail, ret=%d\n", ret);
@@ -653,8 +704,9 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 1, PWRAP_CIPHER_MODE);
 
 	/* Write Test */
-	if (pwrap_write(wrp, PWRAP_DEW_WRITE_TEST, PWRAP_DEW_WRITE_TEST_VAL) ||
-	    pwrap_read(wrp, PWRAP_DEW_WRITE_TEST, &rdata) ||
+	if (pwrap_dew_write(wrp, PWRAP_DEW_WRITE_TEST,
+			    PWRAP_DEW_WRITE_TEST_VAL) ||
+	    pwrap_dew_read(wrp, PWRAP_DEW_WRITE_TEST, &rdata) ||
 			(rdata != PWRAP_DEW_WRITE_TEST_VAL)) {
 		dev_err(wrp->dev, "rdata=0x%04X\n", rdata);
 		return -EFAULT;
@@ -677,8 +729,8 @@ static int pwrap_mt8135_init_special(struct pmic_wrapper *wrp)
 	writel(0x7ff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INT_EN);
 
 	/* enable PMIC event out and sources */
-	if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
-		pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
+	if (pwrap_dew_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
+		pwrap_dew_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
 		dev_err(wrp->dev, "enable dewrap fail\n");
 		return -EFAULT;
 	}
@@ -689,8 +741,8 @@ static int pwrap_mt8135_init_special(struct pmic_wrapper *wrp)
 static int pwrap_mt8173_init_special(struct pmic_wrapper *wrp)
 {
 	/* PMIC_DEWRAP enables */
-	if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
-		pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
+	if (pwrap_dew_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
+		pwrap_dew_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
 		dev_err(wrp->dev, "enable dewrap fail\n");
 		return -EFAULT;
 	}
@@ -734,7 +786,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 		return ret;
 
 	/* Enable dual IO mode */
-	pwrap_write(wrp, PWRAP_DEW_DIO_EN, 1);
+	pwrap_dew_write(wrp, PWRAP_DEW_DIO_EN, 1);
 
 	/* Check IDLE & INIT_DONE in advance */
 	ret = pwrap_wait_for_state(wrp, pwrap_is_fsm_idle_and_sync_idle);
@@ -746,7 +798,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 1, PWRAP_DIO_EN);
 
 	/* Read Test */
-	pwrap_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
+	pwrap_dew_read(wrp, PWRAP_DEW_READ_TEST, &rdata);
 	if (rdata != PWRAP_DEW_READ_TEST_VAL) {
 		dev_err(wrp->dev, "Read test failed after switch to DIO mode: 0x%04x != 0x%04x\n",
 				PWRAP_DEW_READ_TEST_VAL, rdata);
@@ -759,12 +811,13 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 		return ret;
 
 	/* Signature checking - using CRC */
-	if (pwrap_write(wrp, PWRAP_DEW_CRC_EN, 0x1))
+	if (pwrap_dew_write(wrp, PWRAP_DEW_CRC_EN, 0x1))
 		return -EFAULT;
 
 	pwrap_writel(wrp, 0x1, PWRAP_CRC_EN);
 	pwrap_writel(wrp, 0x0, PWRAP_SIG_MODE);
-	pwrap_writel(wrp, PWRAP_DEW_CRC_VAL, PWRAP_SIG_ADR);
+	pwrap_writel(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_VAL],
+		     PWRAP_SIG_ADR);
 	pwrap_writel(wrp, wrp->master->arb_en_all, PWRAP_HIPRIO_ARB_EN);
 
 	if (wrp->master->type == PWRAP_MT8135)
@@ -817,6 +870,21 @@ static const struct regmap_config pwrap_regmap_config = {
 	.max_register = 0xffff,
 };
 
+static const struct pwrap_slv_type pmic_mt6397 = {
+	.dew_regs = mt6397_regs,
+	.type = PMIC_MT6397,
+};
+
+static const struct of_device_id of_slave_match_tbl[] = {
+	{
+		.compatible = "mediatek,mt6397",
+		.data = &pmic_mt6397,
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, of_slave_match_tbl);
+
 static struct pmic_wrapper_type pwrap_mt8135 = {
 	.regs = mt8135_regs,
 	.type = PWRAP_MT8135,
@@ -860,8 +928,17 @@ static int pwrap_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
 		of_match_device(of_pwrap_match_tbl, &pdev->dev);
+	const struct of_device_id *of_slave_id = NULL;
 	struct resource *res;
 
+	if (pdev->dev.of_node->child)
+		of_slave_id = of_match_node(of_slave_match_tbl,
+					    pdev->dev.of_node->child);
+	if (!of_slave_id) {
+		dev_dbg(&pdev->dev, "slave pmic should be defined in dts\n");
+		return -EINVAL;
+	}
+
 	wrp = devm_kzalloc(&pdev->dev, sizeof(*wrp), GFP_KERNEL);
 	if (!wrp)
 		return -ENOMEM;
@@ -869,6 +946,7 @@ static int pwrap_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, wrp);
 
 	wrp->master = of_id->data;
+	wrp->slave = of_slave_id->data;
 	wrp->dev = &pdev->dev;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwrap");
-- 
1.7.10.4

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#1317670 — Re: [PATCH V3 09/11] soc: mediatek: PMIC wrap: add a slave specific struct

FromYingjoe Chen <yingjoe.chen@mediatek.com>
Date2016-01-26 10:40 +0100
SubjectRe: [PATCH V3 09/11] soc: mediatek: PMIC wrap: add a slave specific struct
Message-ID<qV8gq-28S-3@gated-at.bofh.it>
In reply to#1316357
Hi John,

Thanks for preparing the patch.



On Mon, 2016-01-25 at 10:53 +0100, John Crispin wrote:
> This patch adds a new struct pwrap_slv_type that we use to store the slave
> specific data. The patch adds 2 new helper functions to access the dew
> registers. The slave type is looked up via the wrappers child node.
> 
> Signed-off-by: John Crispin <blogic@openwrt.org>
> ---
>  drivers/soc/mediatek/mtk-pmic-wrap.c |  170 +++++++++++++++++++++++++---------
>  1 file changed, 124 insertions(+), 46 deletions(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
> index 54553b4..21d8e5a 100644
> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
<...>

> +/* defines for slave device wrapper registers */
> +enum dew_regs {
> +	PWRAP_DEW_BASE,
> +	PWRAP_DEW_EVENT_OUT_EN,
> +	PWRAP_DEW_DIO_EN,
> +	PWRAP_DEW_EVENT_SRC_EN,
> +	PWRAP_DEW_EVENT_SRC,
> +	PWRAP_DEW_EVENT_FLAG,
> +	PWRAP_DEW_READ_TEST,
> +	PWRAP_DEW_WRITE_TEST,
> +	PWRAP_DEW_CRC_EN,
> +	PWRAP_DEW_CRC_VAL,
> +	PWRAP_DEW_MON_GRP_SEL,
> +	PWRAP_DEW_MON_FLAG_SEL,
> +	PWRAP_DEW_EVENT_TEST,
> +	PWRAP_DEW_CIPHER_KEY_SEL,
> +	PWRAP_DEW_CIPHER_IV_SEL,
> +	PWRAP_DEW_CIPHER_LOAD,
> +	PWRAP_DEW_CIPHER_START,
> +	PWRAP_DEW_CIPHER_RDY,
> +	PWRAP_DEW_CIPHER_MODE,
> +	PWRAP_DEW_CIPHER_SWRST,
> +	PWRAP_MT8173_DEW_CIPHER_IV0,
> +	PWRAP_MT8173_DEW_CIPHER_IV1,
> +	PWRAP_MT8173_DEW_CIPHER_IV2,
> +	PWRAP_MT8173_DEW_CIPHER_IV3,
> +	PWRAP_MT8173_DEW_CIPHER_IV4,
> +	PWRAP_MT8173_DEW_CIPHER_IV5,


For PWRAP_MT8173_DEW_*, since they exist on pmic mt6397, it seems
strange to name them with MT8173 name. I guess we got this name because
MTK internal code base try to support them in MT8173.

On the other hand, these are not used in current code, maybe we can just
remove them?

Joe.C

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#1316360 — [PATCH V3 06/11] soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for MT2701/7623

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 06/11] soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for MT2701/7623
Message-ID<qUM6g-20J-29@gated-at.bofh.it>
In reply to#1316353
MT2701 and MT7623 use a different bitmask for the SPI_WRITE command.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |   11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 948fc73..ba7b6b5 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -372,6 +372,7 @@ struct pmic_wrapper_type {
 	enum pwrap_type type;
 	u32 arb_en_all;
 	u32 int_en_all;
+	u32 spi_w;
 	int (*init_reg_clock)(struct pmic_wrapper *wrp);
 	int (*init_special)(struct pmic_wrapper *wrp);
 };
@@ -511,15 +512,15 @@ static int pwrap_reset_spislave(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 1, PWRAP_MAN_EN);
 	pwrap_writel(wrp, 0, PWRAP_DIO_EN);
 
-	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_CSL,
+	pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_CSL,
 			PWRAP_MAN_CMD);
-	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_OUTS,
+	pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_OUTS,
 			PWRAP_MAN_CMD);
-	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_CSH,
+	pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_CSH,
 			PWRAP_MAN_CMD);
 
 	for (i = 0; i < 4; i++)
-		pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_OUTS,
+		pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_OUTS,
 				PWRAP_MAN_CMD);
 
 	ret = pwrap_wait_for_state(wrp, pwrap_is_sync_idle);
@@ -826,6 +827,7 @@ static struct pmic_wrapper_type pwrap_mt8135 = {
 	.type = PWRAP_MT8135,
 	.arb_en_all = 0x1ff,
 	.int_en_all = BIT(31) | BIT(1),
+	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
 	.init_reg_clock = pwrap_mt8135_init_reg_clock,
 	.init_special = pwrap_mt8135_init_special,
 };
@@ -835,6 +837,7 @@ static struct pmic_wrapper_type pwrap_mt8173 = {
 	.type = PWRAP_MT8173,
 	.arb_en_all = 0x3f,
 	.int_en_all = BIT(31) | BIT(1),
+	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
 	.init_reg_clock = pwrap_mt8173_init_reg_clock,
 	.init_special = pwrap_mt8173_init_special,
 };
-- 
1.7.10.4

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#1317852 — Re: [PATCH V3 06/11] soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for MT2701/7623

FromYingjoe Chen <yingjoe.chen@mediatek.com>
Date2016-01-26 13:50 +0100
SubjectRe: [PATCH V3 06/11] soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for MT2701/7623
Message-ID<qVbei-4b6-45@gated-at.bofh.it>
In reply to#1316360

nit for the subject:

soc: mediatek: PMIC wrap:: SPI_WRITE needs a different bitmask for
MT2701/7623
                        ^^ extra : here.

Otherwise the patch looks good to me.

Joe.C

On Mon, 2016-01-25 at 10:53 +0100, John Crispin wrote:
> MT2701 and MT7623 use a different bitmask for the SPI_WRITE command.
> 
> Signed-off-by: John Crispin <blogic@openwrt.org>
> ---
>  drivers/soc/mediatek/mtk-pmic-wrap.c |   11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
> index 948fc73..ba7b6b5 100644
> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
> @@ -372,6 +372,7 @@ struct pmic_wrapper_type {
>  	enum pwrap_type type;
>  	u32 arb_en_all;
>  	u32 int_en_all;
> +	u32 spi_w;
>  	int (*init_reg_clock)(struct pmic_wrapper *wrp);
>  	int (*init_special)(struct pmic_wrapper *wrp);
>  };
> @@ -511,15 +512,15 @@ static int pwrap_reset_spislave(struct pmic_wrapper *wrp)
>  	pwrap_writel(wrp, 1, PWRAP_MAN_EN);
>  	pwrap_writel(wrp, 0, PWRAP_DIO_EN);
>  
> -	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_CSL,
> +	pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_CSL,
>  			PWRAP_MAN_CMD);
> -	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_OUTS,
> +	pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_OUTS,
>  			PWRAP_MAN_CMD);
> -	pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_CSH,
> +	pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_CSH,
>  			PWRAP_MAN_CMD);
>  
>  	for (i = 0; i < 4; i++)
> -		pwrap_writel(wrp, PWRAP_MAN_CMD_SPI_WRITE | PWRAP_MAN_CMD_OP_OUTS,
> +		pwrap_writel(wrp, wrp->master->spi_w | PWRAP_MAN_CMD_OP_OUTS,
>  				PWRAP_MAN_CMD);
>  
>  	ret = pwrap_wait_for_state(wrp, pwrap_is_sync_idle);
> @@ -826,6 +827,7 @@ static struct pmic_wrapper_type pwrap_mt8135 = {
>  	.type = PWRAP_MT8135,
>  	.arb_en_all = 0x1ff,
>  	.int_en_all = BIT(31) | BIT(1),
> +	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
>  	.init_reg_clock = pwrap_mt8135_init_reg_clock,
>  	.init_special = pwrap_mt8135_init_special,
>  };
> @@ -835,6 +837,7 @@ static struct pmic_wrapper_type pwrap_mt8173 = {
>  	.type = PWRAP_MT8173,
>  	.arb_en_all = 0x3f,
>  	.int_en_all = BIT(31) | BIT(1),
> +	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
>  	.init_reg_clock = pwrap_mt8173_init_reg_clock,
>  	.init_special = pwrap_mt8173_init_special,
>  };

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#1316366 — [PATCH V3 03/11] soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clock

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 03/11] soc: mediatek: PMIC wrap: add wrapper callbacks for init_reg_clock
Message-ID<qUM6g-20J-41@gated-at.bofh.it>
In reply to#1316353
Split init_reg_clock up into SoC specific callbacks. The patch also
reorders the code to avoid the need for callback function prototypes.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |   70 ++++++++++++++++++----------------
 1 file changed, 38 insertions(+), 32 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 340c4b5..b22b664 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -354,24 +354,6 @@ enum pwrap_type {
 	PWRAP_MT8173,
 };
 
-struct pmic_wrapper_type {
-	int *regs;
-	enum pwrap_type type;
-	u32 arb_en_all;
-};
-
-static struct pmic_wrapper_type pwrap_mt8135 = {
-	.regs = mt8135_regs,
-	.type = PWRAP_MT8135,
-	.arb_en_all = 0x1ff,
-};
-
-static struct pmic_wrapper_type pwrap_mt8173 = {
-	.regs = mt8173_regs,
-	.type = PWRAP_MT8173,
-	.arb_en_all = 0x3f,
-};
-
 struct pmic_wrapper {
 	struct device *dev;
 	void __iomem *base;
@@ -385,6 +367,13 @@ struct pmic_wrapper {
 	void __iomem *bridge_base;
 };
 
+struct pmic_wrapper_type {
+	int *regs;
+	enum pwrap_type type;
+	u32 arb_en_all;
+	int (*init_reg_clock)(struct pmic_wrapper *wrp);
+};
+
 static inline int pwrap_is_mt8135(struct pmic_wrapper *wrp)
 {
 	return wrp->master->type == PWRAP_MT8135;
@@ -578,20 +567,23 @@ static int pwrap_init_sidly(struct pmic_wrapper *wrp)
 	return 0;
 }
 
-static int pwrap_init_reg_clock(struct pmic_wrapper *wrp)
+static int pwrap_mt8135_init_reg_clock(struct pmic_wrapper *wrp)
 {
-	if (pwrap_is_mt8135(wrp)) {
-		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT);
-		pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
-		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
-		pwrap_writel(wrp, 0x0, PWRAP_CSLEXT_START);
-		pwrap_writel(wrp, 0x0, PWRAP_CSLEXT_END);
-	} else {
-		pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
-		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
-		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_START);
-		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_END);
-	}
+	pwrap_writel(wrp, 0x4, PWRAP_CSHEXT);
+	pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
+	pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
+	pwrap_writel(wrp, 0x0, PWRAP_CSLEXT_START);
+	pwrap_writel(wrp, 0x0, PWRAP_CSLEXT_END);
+
+	return 0;
+}
+
+static int pwrap_mt8173_init_reg_clock(struct pmic_wrapper *wrp)
+{
+	pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
+	pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
+	pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_START);
+	pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_END);
 
 	return 0;
 }
@@ -699,7 +691,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 
 	pwrap_writel(wrp, 1, PWRAP_WACS2_EN);
 
-	ret = pwrap_init_reg_clock(wrp);
+	ret = wrp->master->init_reg_clock(wrp);
 	if (ret)
 		return ret;
 
@@ -814,6 +806,20 @@ static const struct regmap_config pwrap_regmap_config = {
 	.max_register = 0xffff,
 };
 
+static struct pmic_wrapper_type pwrap_mt8135 = {
+	.regs = mt8135_regs,
+	.type = PWRAP_MT8135,
+	.arb_en_all = 0x1ff,
+	.init_reg_clock = pwrap_mt8135_init_reg_clock,
+};
+
+static struct pmic_wrapper_type pwrap_mt8173 = {
+	.regs = mt8173_regs,
+	.type = PWRAP_MT8173,
+	.arb_en_all = 0x3f,
+	.init_reg_clock = pwrap_mt8173_init_reg_clock,
+};
+
 static struct of_device_id of_pwrap_match_tbl[] = {
 	{
 		.compatible = "mediatek,mt8135-pwrap",
-- 
1.7.10.4

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#1316367 — [PATCH V3 02/11] soc: mediatek: PMIC wrap: don't duplicate the wrapper data

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 02/11] soc: mediatek: PMIC wrap: don't duplicate the wrapper data
Message-ID<qUM6g-20J-39@gated-at.bofh.it>
In reply to#1316353
As we add support for more devices struct pmic_wrapper_type will grow and
we do not really want to start duplicating all the elements in
struct pmic_wrapper.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |   22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 0d9b19a..340c4b5 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -376,9 +376,7 @@ struct pmic_wrapper {
 	struct device *dev;
 	void __iomem *base;
 	struct regmap *regmap;
-	int *regs;
-	enum pwrap_type type;
-	u32 arb_en_all;
+	const struct pmic_wrapper_type *master;
 	struct clk *clk_spi;
 	struct clk *clk_wrap;
 	struct reset_control *rstc;
@@ -389,22 +387,22 @@ struct pmic_wrapper {
 
 static inline int pwrap_is_mt8135(struct pmic_wrapper *wrp)
 {
-	return wrp->type == PWRAP_MT8135;
+	return wrp->master->type == PWRAP_MT8135;
 }
 
 static inline int pwrap_is_mt8173(struct pmic_wrapper *wrp)
 {
-	return wrp->type == PWRAP_MT8173;
+	return wrp->master->type == PWRAP_MT8173;
 }
 
 static u32 pwrap_readl(struct pmic_wrapper *wrp, enum pwrap_regs reg)
 {
-	return readl(wrp->base + wrp->regs[reg]);
+	return readl(wrp->base + wrp->master->regs[reg]);
 }
 
 static void pwrap_writel(struct pmic_wrapper *wrp, u32 val, enum pwrap_regs reg)
 {
-	writel(val, wrp->base + wrp->regs[reg]);
+	writel(val, wrp->base + wrp->master->regs[reg]);
 }
 
 static bool pwrap_is_fsm_idle(struct pmic_wrapper *wrp)
@@ -697,7 +695,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 
 	pwrap_writel(wrp, 1, PWRAP_WRAP_EN);
 
-	pwrap_writel(wrp, wrp->arb_en_all, PWRAP_HIPRIO_ARB_EN);
+	pwrap_writel(wrp, wrp->master->arb_en_all, PWRAP_HIPRIO_ARB_EN);
 
 	pwrap_writel(wrp, 1, PWRAP_WACS2_EN);
 
@@ -742,7 +740,7 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 0x1, PWRAP_CRC_EN);
 	pwrap_writel(wrp, 0x0, PWRAP_SIG_MODE);
 	pwrap_writel(wrp, PWRAP_DEW_CRC_VAL, PWRAP_SIG_ADR);
-	pwrap_writel(wrp, wrp->arb_en_all, PWRAP_HIPRIO_ARB_EN);
+	pwrap_writel(wrp, wrp->master->arb_en_all, PWRAP_HIPRIO_ARB_EN);
 
 	if (pwrap_is_mt8135(wrp))
 		pwrap_writel(wrp, 0x7, PWRAP_RRARB_EN);
@@ -836,7 +834,6 @@ static int pwrap_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
 		of_match_device(of_pwrap_match_tbl, &pdev->dev);
-	const struct pmic_wrapper_type *type;
 	struct resource *res;
 
 	wrp = devm_kzalloc(&pdev->dev, sizeof(*wrp), GFP_KERNEL);
@@ -845,10 +842,7 @@ static int pwrap_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, wrp);
 
-	type = of_id->data;
-	wrp->regs = type->regs;
-	wrp->type = type->type;
-	wrp->arb_en_all = type->arb_en_all;
+	wrp->master = of_id->data;
 	wrp->dev = &pdev->dev;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pwrap");
-- 
1.7.10.4

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#1316368 — [PATCH V3 07/11] soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type struct

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 07/11] soc: mediatek: PMIC wrap: move wdt_src into the pmic_wrapper_type struct
Message-ID<qUM6g-20J-45@gated-at.bofh.it>
In reply to#1316353
Make the handling of wdt_src consitent with the rest of the code.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index ba7b6b5..8bb091b 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -373,6 +373,7 @@ struct pmic_wrapper_type {
 	u32 arb_en_all;
 	u32 int_en_all;
 	u32 spi_w;
+	u32 wdt_src;
 	int (*init_reg_clock)(struct pmic_wrapper *wrp);
 	int (*init_special)(struct pmic_wrapper *wrp);
 };
@@ -828,6 +829,7 @@ static struct pmic_wrapper_type pwrap_mt8135 = {
 	.arb_en_all = 0x1ff,
 	.int_en_all = BIT(31) | BIT(1),
 	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
+	.wdt_src = PWRAP_WDT_SRC_MASK_ALL,
 	.init_reg_clock = pwrap_mt8135_init_reg_clock,
 	.init_special = pwrap_mt8135_init_special,
 };
@@ -838,6 +840,7 @@ static struct pmic_wrapper_type pwrap_mt8173 = {
 	.arb_en_all = 0x3f,
 	.int_en_all = BIT(31) | BIT(1),
 	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
+	.wdt_src = PWRAP_WDT_SRC_MASK_NO_STAUPD,
 	.init_reg_clock = pwrap_mt8173_init_reg_clock,
 	.init_special = pwrap_mt8173_init_special,
 };
@@ -857,7 +860,7 @@ MODULE_DEVICE_TABLE(of, of_pwrap_match_tbl);
 
 static int pwrap_probe(struct platform_device *pdev)
 {
-	int ret, irq, wdt_src;
+	int ret, irq;
 	struct pmic_wrapper *wrp;
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
@@ -947,9 +950,7 @@ static int pwrap_probe(struct platform_device *pdev)
 	 * Since STAUPD was not used on mt8173 platform,
 	 * so STAUPD of WDT_SRC which should be turned off
 	 */
-	wdt_src = pwrap_is_mt8173(wrp) ?
-			PWRAP_WDT_SRC_MASK_NO_STAUPD : PWRAP_WDT_SRC_MASK_ALL;
-	pwrap_writel(wrp, wdt_src, PWRAP_WDT_SRC_EN);
+	pwrap_writel(wrp, wrp->master->wdt_src, PWRAP_WDT_SRC_EN);
 	pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN);
 	pwrap_writel(wrp, ~wrp->master->int_en_all, PWRAP_INT_EN);
 
-- 
1.7.10.4

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#1316373 — [PATCH V3 11/11] soc: mediatek: PMIC wrap: add MT2701/7623 support

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 11/11] soc: mediatek: PMIC wrap: add MT2701/7623 support
Message-ID<qUM6h-20J-57@gated-at.bofh.it>
In reply to#1316353
Add the registers, callbacks and data structures required to make the
wrapper work on MT2701 and MT7623.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |  160 ++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 85c4314..7e0d159 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -52,6 +52,7 @@
 #define PWRAP_DEW_WRITE_TEST_VAL	0xa55a
 
 /* macro for manual command */
+#define PWRAP_MAN_CMD_SPI_WRITE_NEW	(1 << 14)
 #define PWRAP_MAN_CMD_SPI_WRITE		(1 << 13)
 #define PWRAP_MAN_CMD_OP_CSH		(0x0 << 8)
 #define PWRAP_MAN_CMD_OP_CSL		(0x1 << 8)
@@ -214,6 +215,17 @@ enum pwrap_regs {
 	PWRAP_DCM_EN,
 	PWRAP_DCM_DBC_PRD,
 
+	/* MT2701 only regs */
+	PWRAP_OP_TYPE,
+	PWRAP_MSB_FIRST,
+	PWRAP_GPS_STA,
+	PWRAP_ADC_CMD_ADDR,
+	PWRAP_PWRAP_ADC_CMD,
+	PWRAP_ADC_RDY_ADDR,
+	PWRAP_ADC_RDATA_ADDR1,
+	PWRAP_ADC_RDATA_ADDR2,
+	PWRAP_ADC_WRAP_SEL,
+
 	/* MT8135 only regs */
 	PWRAP_CSHEXT,
 	PWRAP_EVENT_IN_EN,
@@ -250,6 +262,96 @@ enum pwrap_regs {
 	PWRAP_CIPHER_EN,
 };
 
+static int mt2701_regs[] = {
+	[PWRAP_MUX_SEL] =		0x0,
+	[PWRAP_WRAP_EN] =		0x4,
+	[PWRAP_DIO_EN] =		0x8,
+	[PWRAP_SIDLY] =			0xc,
+	[PWRAP_OP_TYPE] =		0x10,
+	[PWRAP_MSB_FIRST] =		0x14,
+	[PWRAP_RDDMY] =			0x18,
+	[PWRAP_SI_CK_CON] =		0x1c,
+	[PWRAP_CSHEXT_WRITE] =		0x20,
+	[PWRAP_CSHEXT_READ] =		0x24,
+	[PWRAP_CSLEXT_START] =		0x28,
+	[PWRAP_CSLEXT_END] =		0x2c,
+	[PWRAP_STAUPD_PRD] =		0x30,
+	[PWRAP_STAUPD_GRPEN] =		0x34,
+	[PWRAP_STAUPD_MAN_TRIG] =	0x38,
+	[PWRAP_STAUPD_STA] =		0x3c,
+	[PWRAP_GPS_STA] =		0x40,
+	[PWRAP_WRAP_STA] =		0x44,
+	[PWRAP_HARB_INIT] =		0x48,
+	[PWRAP_HARB_HPRIO] =		0x4c,
+	[PWRAP_HIPRIO_ARB_EN] =		0x50,
+	[PWRAP_HARB_STA0] =		0x54,
+	[PWRAP_HARB_STA1] =		0x58,
+	[PWRAP_MAN_EN] =		0x5c,
+	[PWRAP_MAN_CMD] =		0x60,
+	[PWRAP_MAN_RDATA] =		0x64,
+	[PWRAP_MAN_VLDCLR] =		0x68,
+	[PWRAP_WACS0_EN] =		0x6c,
+	[PWRAP_INIT_DONE0] =		0x70,
+	[PWRAP_WACS0_CMD] =		0x74,
+	[PWRAP_WACS0_RDATA] =		0x78,
+	[PWRAP_WACS0_VLDCLR] =		0x7c,
+	[PWRAP_WACS1_EN] =		0x80,
+	[PWRAP_INIT_DONE1] =		0x84,
+	[PWRAP_WACS1_CMD] =		0x88,
+	[PWRAP_WACS1_RDATA] =		0x8c,
+	[PWRAP_WACS1_VLDCLR] =		0x90,
+	[PWRAP_WACS2_EN] =		0x94,
+	[PWRAP_INIT_DONE2] =		0x98,
+	[PWRAP_WACS2_CMD] =		0x9c,
+	[PWRAP_WACS2_RDATA] =		0xa0,
+	[PWRAP_WACS2_VLDCLR] =		0xa4,
+	[PWRAP_INT_EN] =		0xa8,
+	[PWRAP_INT_FLG_RAW] =		0xac,
+	[PWRAP_INT_FLG] =		0xb0,
+	[PWRAP_INT_CLR] =		0xb4,
+	[PWRAP_SIG_ADR] =		0xb8,
+	[PWRAP_SIG_MODE] =		0xbc,
+	[PWRAP_SIG_VALUE] =		0xc0,
+	[PWRAP_SIG_ERRVAL] =		0xc4,
+	[PWRAP_CRC_EN] =		0xc8,
+	[PWRAP_TIMER_EN] =		0xcc,
+	[PWRAP_TIMER_STA] =		0xd0,
+	[PWRAP_WDT_UNIT] =		0xd4,
+	[PWRAP_WDT_SRC_EN] =		0xd8,
+	[PWRAP_WDT_FLG] =		0xdc,
+	[PWRAP_DEBUG_INT_SEL] =		0xe0,
+	[PWRAP_DVFS_ADR0] =		0xe4,
+	[PWRAP_DVFS_WDATA0] =		0xe8,
+	[PWRAP_DVFS_ADR1] =		0xec,
+	[PWRAP_DVFS_WDATA1] =		0xf0,
+	[PWRAP_DVFS_ADR2] =		0xf4,
+	[PWRAP_DVFS_WDATA2] =		0xf8,
+	[PWRAP_DVFS_ADR3] =		0xfc,
+	[PWRAP_DVFS_WDATA3] =		0x100,
+	[PWRAP_DVFS_ADR4] =		0x104,
+	[PWRAP_DVFS_WDATA4] =		0x108,
+	[PWRAP_DVFS_ADR5] =		0x10c,
+	[PWRAP_DVFS_WDATA5] =		0x110,
+	[PWRAP_DVFS_ADR6] =		0x114,
+	[PWRAP_DVFS_WDATA6] =		0x118,
+	[PWRAP_DVFS_ADR7] =		0x11c,
+	[PWRAP_DVFS_WDATA7] =		0x120,
+	[PWRAP_CIPHER_KEY_SEL] =	0x124,
+	[PWRAP_CIPHER_IV_SEL] =		0x128,
+	[PWRAP_CIPHER_EN] =		0x12c,
+	[PWRAP_CIPHER_RDY] =		0x130,
+	[PWRAP_CIPHER_MODE] =		0x134,
+	[PWRAP_CIPHER_SWRST] =		0x138,
+	[PWRAP_DCM_EN] =		0x13c,
+	[PWRAP_DCM_DBC_PRD] =		0x140,
+	[PWRAP_ADC_CMD_ADDR] =		0x144,
+	[PWRAP_PWRAP_ADC_CMD] =		0x148,
+	[PWRAP_ADC_RDY_ADDR] =		0x14c,
+	[PWRAP_ADC_RDATA_ADDR1] =	0x150,
+	[PWRAP_ADC_RDATA_ADDR2] =	0x154,
+	[PWRAP_ADC_WRAP_SEL] =		0x184,
+};
+
 static int mt8173_regs[] = {
 	[PWRAP_MUX_SEL] =		0x0,
 	[PWRAP_WRAP_EN] =		0x4,
@@ -411,6 +513,7 @@ enum pmic_type {
 };
 
 enum pwrap_type {
+	PWRAP_MT2701,
 	PWRAP_MT8135,
 	PWRAP_MT8173,
 };
@@ -660,6 +763,30 @@ static int pwrap_mt8173_init_reg_clock(struct pmic_wrapper *wrp)
 	return 0;
 }
 
+static int pwrap_mt2701_init_reg_clock(struct pmic_wrapper *wrp)
+{
+	switch (wrp->slave->type) {
+	case PMIC_MT6397:
+		pwrap_writel(wrp, 0xc, PWRAP_RDDMY);
+		pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_WRITE);
+		pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_READ);
+		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_START);
+		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_END);
+		break;
+
+	case PMIC_MT6323:
+		pwrap_writel(wrp, 0x8, PWRAP_RDDMY);
+		pwrap_dew_write(wrp, PWRAP_DEW_RDDMY_NO, 0x8);
+		pwrap_writel(wrp, 0x5, PWRAP_CSHEXT_WRITE);
+		pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_READ);
+		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_START);
+		pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_END);
+		break;
+	}
+
+	return 0;
+}
+
 static bool pwrap_is_cipher_ready(struct pmic_wrapper *wrp)
 {
 	return pwrap_readl(wrp, PWRAP_CIPHER_RDY) & 1;
@@ -692,6 +819,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 		pwrap_writel(wrp, 1, PWRAP_CIPHER_LOAD);
 		pwrap_writel(wrp, 1, PWRAP_CIPHER_START);
 		break;
+	case PWRAP_MT2701:
 	case PWRAP_MT8173:
 		pwrap_writel(wrp, 1, PWRAP_CIPHER_EN);
 		break;
@@ -784,6 +912,24 @@ static int pwrap_mt8173_init_special(struct pmic_wrapper *wrp)
 	return 0;
 }
 
+static int pwrap_mt2701_init_special(struct pmic_wrapper *wrp)
+{
+	/* GPS_INTF initialization */
+	switch (wrp->slave->type) {
+	case PMIC_MT6323:
+		pwrap_writel(wrp, 0x076c, PWRAP_ADC_CMD_ADDR);
+		pwrap_writel(wrp, 0x8000, PWRAP_PWRAP_ADC_CMD);
+		pwrap_writel(wrp, 0x072c, PWRAP_ADC_RDY_ADDR);
+		pwrap_writel(wrp, 0x072e, PWRAP_ADC_RDATA_ADDR1);
+		pwrap_writel(wrp, 0x0730, PWRAP_ADC_RDATA_ADDR2);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 static int pwrap_init(struct pmic_wrapper *wrp)
 {
 	int ret;
@@ -927,6 +1073,17 @@ static const struct of_device_id of_slave_match_tbl[] = {
 };
 MODULE_DEVICE_TABLE(of, of_slave_match_tbl);
 
+static const struct pmic_wrapper_type pwrap_mt2701 = {
+	.regs = mt2701_regs,
+	.type = PWRAP_MT2701,
+	.arb_en_all = 0x3f,
+	.int_en_all = BIT(31) | BIT(2),
+	.spi_w = PWRAP_MAN_CMD_SPI_WRITE_NEW,
+	.wdt_src = PWRAP_WDT_SRC_MASK_ALL,
+	.init_reg_clock = pwrap_mt2701_init_reg_clock,
+	.init_special = pwrap_mt2701_init_special,
+};
+
 static struct pmic_wrapper_type pwrap_mt8135 = {
 	.regs = mt8135_regs,
 	.type = PWRAP_MT8135,
@@ -952,6 +1109,9 @@ static struct pmic_wrapper_type pwrap_mt8173 = {
 
 static struct of_device_id of_pwrap_match_tbl[] = {
 	{
+		.compatible = "mediatek,mt2701-pwrap",
+		.data = &pwrap_mt2701,
+	}, {
 		.compatible = "mediatek,mt8135-pwrap",
 		.data = &pwrap_mt8135,
 	}, {
-- 
1.7.10.4

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#1316375 — [PATCH V3 05/11] soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for MT2701/7623

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 05/11] soc: mediatek: PMIC wrap: WRAP_INT_EN needs a different bitmask for MT2701/7623
Message-ID<qUM6h-20J-59@gated-at.bofh.it>
In reply to#1316353
MT2701 and MT7623 use a different bitmask for PWRAP_INT_EN.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index ab2202d..948fc73 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -371,6 +371,7 @@ struct pmic_wrapper_type {
 	int *regs;
 	enum pwrap_type type;
 	u32 arb_en_all;
+	u32 int_en_all;
 	int (*init_reg_clock)(struct pmic_wrapper *wrp);
 	int (*init_special)(struct pmic_wrapper *wrp);
 };
@@ -824,6 +825,7 @@ static struct pmic_wrapper_type pwrap_mt8135 = {
 	.regs = mt8135_regs,
 	.type = PWRAP_MT8135,
 	.arb_en_all = 0x1ff,
+	.int_en_all = BIT(31) | BIT(1),
 	.init_reg_clock = pwrap_mt8135_init_reg_clock,
 	.init_special = pwrap_mt8135_init_special,
 };
@@ -832,6 +834,7 @@ static struct pmic_wrapper_type pwrap_mt8173 = {
 	.regs = mt8173_regs,
 	.type = PWRAP_MT8173,
 	.arb_en_all = 0x3f,
+	.int_en_all = BIT(31) | BIT(1),
 	.init_reg_clock = pwrap_mt8173_init_reg_clock,
 	.init_special = pwrap_mt8173_init_special,
 };
@@ -945,7 +948,7 @@ static int pwrap_probe(struct platform_device *pdev)
 			PWRAP_WDT_SRC_MASK_NO_STAUPD : PWRAP_WDT_SRC_MASK_ALL;
 	pwrap_writel(wrp, wdt_src, PWRAP_WDT_SRC_EN);
 	pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN);
-	pwrap_writel(wrp, ~((1 << 31) | (1 << 1)), PWRAP_INT_EN);
+	pwrap_writel(wrp, ~wrp->master->int_en_all, PWRAP_INT_EN);
 
 	irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(wrp->dev, irq, pwrap_interrupt, IRQF_TRIGGER_HIGH,
-- 
1.7.10.4

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#1316376 — [PATCH V3 04/11] soc: mediatek: PMIC wrap: split SoC specific init into callback

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 04/11] soc: mediatek: PMIC wrap: split SoC specific init into callback
Message-ID<qUM6h-20J-61@gated-at.bofh.it>
In reply to#1316353
This patch moves the SoC specific wrapper init code into separate callback
to avoid pwrap_init() getting too large.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/soc/mediatek/mtk-pmic-wrap.c |   68 +++++++++++++++++++++-------------
 1 file changed, 42 insertions(+), 26 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index b22b664..ab2202d 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -372,6 +372,7 @@ struct pmic_wrapper_type {
 	enum pwrap_type type;
 	u32 arb_en_all;
 	int (*init_reg_clock)(struct pmic_wrapper *wrp);
+	int (*init_special)(struct pmic_wrapper *wrp);
 };
 
 static inline int pwrap_is_mt8135(struct pmic_wrapper *wrp)
@@ -665,6 +666,41 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	return 0;
 }
 
+static int pwrap_mt8135_init_special(struct pmic_wrapper *wrp)
+{
+	/* enable pwrap events and pwrap bridge in AP side */
+	pwrap_writel(wrp, 0x1, PWRAP_EVENT_IN_EN);
+	pwrap_writel(wrp, 0xffff, PWRAP_EVENT_DST_EN);
+	writel(0x7f, wrp->bridge_base + PWRAP_MT8135_BRIDGE_IORD_ARB_EN);
+	writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WACS3_EN);
+	writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WACS4_EN);
+	writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WDT_UNIT);
+	writel(0xffff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WDT_SRC_EN);
+	writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_TIMER_EN);
+	writel(0x7ff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INT_EN);
+
+	/* enable PMIC event out and sources */
+	if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
+		pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
+		dev_err(wrp->dev, "enable dewrap fail\n");
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static int pwrap_mt8173_init_special(struct pmic_wrapper *wrp)
+{
+	/* PMIC_DEWRAP enables */
+	if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
+		pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
+		dev_err(wrp->dev, "enable dewrap fail\n");
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
 static int pwrap_init(struct pmic_wrapper *wrp)
 {
 	int ret;
@@ -743,32 +779,10 @@ static int pwrap_init(struct pmic_wrapper *wrp)
 	pwrap_writel(wrp, 0x5, PWRAP_STAUPD_PRD);
 	pwrap_writel(wrp, 0xff, PWRAP_STAUPD_GRPEN);
 
-	if (pwrap_is_mt8135(wrp)) {
-		/* enable pwrap events and pwrap bridge in AP side */
-		pwrap_writel(wrp, 0x1, PWRAP_EVENT_IN_EN);
-		pwrap_writel(wrp, 0xffff, PWRAP_EVENT_DST_EN);
-		writel(0x7f, wrp->bridge_base + PWRAP_MT8135_BRIDGE_IORD_ARB_EN);
-		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WACS3_EN);
-		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WACS4_EN);
-		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WDT_UNIT);
-		writel(0xffff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_WDT_SRC_EN);
-		writel(0x1, wrp->bridge_base + PWRAP_MT8135_BRIDGE_TIMER_EN);
-		writel(0x7ff, wrp->bridge_base + PWRAP_MT8135_BRIDGE_INT_EN);
-
-		/* enable PMIC event out and sources */
-		if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
-				pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
-			dev_err(wrp->dev, "enable dewrap fail\n");
-			return -EFAULT;
-		}
-	} else {
-		/* PMIC_DEWRAP enables */
-		if (pwrap_write(wrp, PWRAP_DEW_EVENT_OUT_EN, 0x1) ||
-				pwrap_write(wrp, PWRAP_DEW_EVENT_SRC_EN, 0xffff)) {
-			dev_err(wrp->dev, "enable dewrap fail\n");
-			return -EFAULT;
-		}
-	}
+	if (wrp->master->init_special)
+		ret = wrp->master->init_special(wrp);
+	if (ret)
+		return ret;
 
 	/* Setup the init done registers */
 	pwrap_writel(wrp, 1, PWRAP_INIT_DONE2);
@@ -811,6 +825,7 @@ static struct pmic_wrapper_type pwrap_mt8135 = {
 	.type = PWRAP_MT8135,
 	.arb_en_all = 0x1ff,
 	.init_reg_clock = pwrap_mt8135_init_reg_clock,
+	.init_special = pwrap_mt8135_init_special,
 };
 
 static struct pmic_wrapper_type pwrap_mt8173 = {
@@ -818,6 +833,7 @@ static struct pmic_wrapper_type pwrap_mt8173 = {
 	.type = PWRAP_MT8173,
 	.arb_en_all = 0x3f,
 	.init_reg_clock = pwrap_mt8173_init_reg_clock,
+	.init_special = pwrap_mt8173_init_special,
 };
 
 static struct of_device_id of_pwrap_match_tbl[] = {
-- 
1.7.10.4

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#1316377 — [PATCH V3 01/11] dt-bindings: ARM: Mediatek: add MT2701/7623 string to the PMIC wrapper doc

FromJohn Crispin <blogic@openwrt.org>
Date2016-01-25 11:00 +0100
Subject[PATCH V3 01/11] dt-bindings: ARM: Mediatek: add MT2701/7623 string to the PMIC wrapper doc
Message-ID<qUM6i-20J-65@gated-at.bofh.it>
In reply to#1316353
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: devicetree@vger.kernel.org
---
 Documentation/devicetree/bindings/soc/mediatek/pwrap.txt |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
index ddeb5b6..107700d 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
+++ b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
@@ -18,6 +18,7 @@ IP Pairing
 
 Required properties in pwrap device node.
 - compatible:
+	"mediatek,mt2701-pwrap" for MT2701/7623 SoCs
 	"mediatek,mt8135-pwrap" for MT8135 SoCs
 	"mediatek,mt8173-pwrap" for MT8173 SoCs
 - interrupts: IRQ for pwrap in SOC
-- 
1.7.10.4

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#1317485 — Re: [PATCH V3 01/11] dt-bindings: ARM: Mediatek: add MT2701/7623 string to the PMIC wrapper doc

FromRob Herring <robh@kernel.org>
Date2016-01-26 03:50 +0100
SubjectRe: [PATCH V3 01/11] dt-bindings: ARM: Mediatek: add MT2701/7623 string to the PMIC wrapper doc
Message-ID<qV1RE-4VC-11@gated-at.bofh.it>
In reply to#1316377
On Mon, Jan 25, 2016 at 10:53:14AM +0100, John Crispin wrote:
> Signed-off-by: John Crispin <blogic@openwrt.org>
> Cc: devicetree@vger.kernel.org
> ---
>  Documentation/devicetree/bindings/soc/mediatek/pwrap.txt |    1 +
>  1 file changed, 1 insertion(+)

Acked-by: Rob Herring robh@kernel.org>

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