[PATCH V1 0/5]: Fix-up patches

[PATCH V1 0/5]: Fix-up patches

[Kiran Gunda]

This patch series is to fix-up the comments given by Stephen Boyd
on the below 11 pathces. These 11 patches were picked up by GregKH
in to his tree and later reviewed by Stephen Boyd. As it is very difficult
to revert the changes from his tree, we decided to let these patches go
in to Greg's tree and provide the fix-up patches later.

Following are the 11 patches picked by Greg:

https://patchwork.kernel.org/patch/9754503/
https://patchwork.kernel.org/patch/9754501/ 
https://patchwork.kernel.org/patch/9754559/
https://patchwork.kernel.org/patch/9754511/
https://patchwork.kernel.org/patch/9754515/
https://patchwork.kernel.org/patch/9754553/
https://patchwork.kernel.org/patch/9754555/
https://patchwork.kernel.org/patch/9754521/
https://patchwork.kernel.org/patch/9754551
https://patchwork.kernel.org/patch/9754525
https://patchwork.kernel.org/patch/9754531/

Also this patch series is dependent on the below patch pushed
by Stephen Boyd. Please take this series after taking this patch
in to the tree.

https://patchwork.kernel.org/patch/9810723/

Kiran Gunda (5):
  spmi: pmic-arb: remove the read/write access checks
  spmi: pmic-arb: rename pa_xx to pmic_arb_xx and other code cleanup
  spmi: pmic-arb: replace the writel_relaxed with __raw_writel
  spmi: pmic-arb: return the value instead of passing by pointer
  spmi: pmic-arb: use irq_chip callback to set spmi irq wakeup
    capability

 drivers/spmi/spmi-pmic-arb.c | 555 +++++++++++++++++++------------------------
 1 file changed, 250 insertions(+), 305 deletions(-)

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH V1 1/5] spmi: pmic-arb: remove the read/write access checks

[Kiran Gunda]

The access mode checks for peripheral ownership for read/write
permissions should not be required. Every peripheral enabled for
this master is expected to have a read/write permissions. If there
is any such invalid access due to wrong configuration in boot loader
or device tree files, then it should be fixed in those locations.
Hence, remove the access mode checks from the driver.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
 drivers/spmi/spmi-pmic-arb.c | 75 +++-----------------------------------------
 1 file changed, 5 insertions(+), 70 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index f4b7a98..7531519 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -128,7 +128,6 @@ struct apid_data {
  * @ee:			the current Execution Environment
  * @min_apid:		minimum APID (used for bounding IRQ search)
  * @max_apid:		maximum APID
- * @max_periph:		maximum number of PMIC peripherals supported by HW.
  * @mapping_table:	in-memory copy of PPID -> APID mapping table.
  * @domain:		irq domain object for PMIC IRQ domain
  * @spmic:		SPMI controller object
@@ -148,7 +147,6 @@ struct spmi_pmic_arb {
 	u8			ee;
 	u16			min_apid;
 	u16			max_apid;
-	u16			max_periph;
 	u32			*mapping_table;
 	DECLARE_BITMAP(mapping_table_valid, PMIC_ARB_MAX_PERIPHS);
 	struct irq_domain	*domain;
@@ -164,7 +162,6 @@ struct spmi_pmic_arb {
  *
  * @ver_str:		version string.
  * @ppid_to_apid:	finds the apid for a given ppid.
- * @mode:		access rights to specified pmic peripheral.
  * @non_data_cmd:	on v1 issues an spmi non-data command.
  *			on v2 no HW support, returns -EOPNOTSUPP.
  * @offset:		on v1 offset of per-ee channel.
@@ -183,8 +180,6 @@ struct pmic_arb_ver_ops {
 	const char *ver_str;
 	int (*ppid_to_apid)(struct spmi_pmic_arb *pa, u8 sid, u16 addr,
 			u16 *apid);
-	int (*mode)(struct spmi_pmic_arb *dev, u8 sid, u16 addr,
-			mode_t *mode);
 	/* spmi commands (read_cmd, write_cmd, cmd) functionality */
 	int (*offset)(struct spmi_pmic_arb *dev, u8 sid, u16 addr,
 		      u32 *offset);
@@ -340,23 +335,11 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 	u32 cmd;
 	int rc;
 	u32 offset;
-	mode_t mode;
 
 	rc = pa->ver_ops->offset(pa, sid, addr, &offset);
 	if (rc)
 		return rc;
 
-	rc = pa->ver_ops->mode(pa, sid, addr, &mode);
-	if (rc)
-		return rc;
-
-	if (!(mode & S_IRUSR)) {
-		dev_err(&pa->spmic->dev,
-			"error: impermissible read from peripheral sid:%d addr:0x%x\n",
-			sid, addr);
-		return -EPERM;
-	}
-
 	if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
 		dev_err(&ctrl->dev,
 			"pmic-arb supports 1..%d bytes per trans, but:%zu requested",
@@ -402,23 +385,11 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 	u32 cmd;
 	int rc;
 	u32 offset;
-	mode_t mode;
 
 	rc = pa->ver_ops->offset(pa, sid, addr, &offset);
 	if (rc)
 		return rc;
 
-	rc = pa->ver_ops->mode(pa, sid, addr, &mode);
-	if (rc)
-		return rc;
-
-	if (!(mode & S_IWUSR)) {
-		dev_err(&pa->spmic->dev,
-			"error: impermissible write to peripheral sid:%d addr:0x%x\n",
-			sid, addr);
-		return -EPERM;
-	}
-
 	if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
 		dev_err(&ctrl->dev,
 			"pmic-arb supports 1..%d bytes per trans, but:%zu requested",
@@ -785,13 +756,6 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 	return -ENODEV;
 }
 
-static int
-pmic_arb_mode_v1_v3(struct spmi_pmic_arb *pa, u8 sid, u16 addr, mode_t *mode)
-{
-	*mode = S_IRUSR | S_IWUSR;
-	return 0;
-}
-
 /* v1 offset per ee */
 static int
 pmic_arb_offset_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u32 *offset)
@@ -810,15 +774,15 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pa, u16 ppid)
 	 * PMIC_ARB_REG_CHNL is a table in HW mapping channel to ppid.
 	 * ppid_to_apid is an in-memory invert of that table.
 	 */
-	for (apid = pa->last_apid; apid < pa->max_periph; apid++) {
-		regval = readl_relaxed(pa->cnfg +
-				      SPMI_OWNERSHIP_TABLE_REG(apid));
-		pa->apid_data[apid].owner = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
-
+	for (apid = pa->last_apid; ; apid++) {
 		offset = PMIC_ARB_REG_CHNL(apid);
 		if (offset >= pa->core_size)
 			break;
 
+		regval = readl_relaxed(pa->cnfg +
+				      SPMI_OWNERSHIP_TABLE_REG(apid));
+		pa->apid_data[apid].owner = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
+
 		regval = readl_relaxed(pa->core + offset);
 		if (!regval)
 			continue;
@@ -853,24 +817,6 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pa, u16 ppid)
 	return 0;
 }
 
-static int
-pmic_arb_mode_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, mode_t *mode)
-{
-	u16 apid;
-	int rc;
-
-	rc = pmic_arb_ppid_to_apid_v2(pa, sid, addr, &apid);
-	if (rc < 0)
-		return rc;
-
-	*mode = 0;
-	*mode |= S_IRUSR;
-
-	if (pa->ee == pa->apid_data[apid].owner)
-		*mode |= S_IWUSR;
-	return 0;
-}
-
 /* v2 offset per ppid and per ee */
 static int
 pmic_arb_offset_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u32 *offset)
@@ -944,7 +890,6 @@ static u32 pmic_arb_irq_clear_v2(u16 n)
 static const struct pmic_arb_ver_ops pmic_arb_v1 = {
 	.ver_str		= "v1",
 	.ppid_to_apid		= pmic_arb_ppid_to_apid_v1,
-	.mode			= pmic_arb_mode_v1_v3,
 	.non_data_cmd		= pmic_arb_non_data_cmd_v1,
 	.offset			= pmic_arb_offset_v1,
 	.fmt_cmd		= pmic_arb_fmt_cmd_v1,
@@ -957,7 +902,6 @@ static u32 pmic_arb_irq_clear_v2(u16 n)
 static const struct pmic_arb_ver_ops pmic_arb_v2 = {
 	.ver_str		= "v2",
 	.ppid_to_apid		= pmic_arb_ppid_to_apid_v2,
-	.mode			= pmic_arb_mode_v2,
 	.non_data_cmd		= pmic_arb_non_data_cmd_v2,
 	.offset			= pmic_arb_offset_v2,
 	.fmt_cmd		= pmic_arb_fmt_cmd_v2,
@@ -970,7 +914,6 @@ static u32 pmic_arb_irq_clear_v2(u16 n)
 static const struct pmic_arb_ver_ops pmic_arb_v3 = {
 	.ver_str		= "v3",
 	.ppid_to_apid		= pmic_arb_ppid_to_apid_v2,
-	.mode			= pmic_arb_mode_v1_v3,
 	.non_data_cmd		= pmic_arb_non_data_cmd_v2,
 	.offset			= pmic_arb_offset_v2,
 	.fmt_cmd		= pmic_arb_fmt_cmd_v2,
@@ -1003,11 +946,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
 	pa->core_size = resource_size(res);
-	if (pa->core_size <= 0x800) {
-		dev_err(&pdev->dev, "core_size is smaller than 0x800. Failing Probe\n");
-		err = -EINVAL;
-		goto err_put_ctrl;
-	}
 
 	core = devm_ioremap_resource(&ctrl->dev, res);
 	if (IS_ERR(core)) {
@@ -1036,9 +974,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 		else
 			pa->ver_ops = &pmic_arb_v3;
 
-		/* the apid to ppid table starts at PMIC_ARB_REG_CHNL(0) */
-		pa->max_periph = (pa->core_size - PMIC_ARB_REG_CHNL(0)) / 4;
-
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 						   "obsrvr");
 		pa->rd_base = devm_ioremap_resource(&ctrl->dev, res);
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 1/5] spmi: pmic-arb: remove the read/write access checks

[Stephen Boyd]

On 07/03, Kiran Gunda wrote:
> The access mode checks for peripheral ownership for read/write
> permissions should not be required. Every peripheral enabled for
> this master is expected to have a read/write permissions. If there
> is any such invalid access due to wrong configuration in boot loader
> or device tree files, then it should be fixed in those locations.
> Hence, remove the access mode checks from the driver.
> 
> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
> ---

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH V1 2/5] spmi: pmic-arb: rename pa_xx to pmic_arb_xx and other code cleanup

[Kiran Gunda]

This patch cleans up the following.

- Rename the "pa" to "pmic_arb".
- Rename the spmi_pmic_arb *dev to spmi_pmic_arb *pmic_arb.
- Rename the pa_{read,write}_data() functions to
  pmic_arb_{read,write}_data().
- Rename channel to APID.
- Rename the HWIRQ_*() macros to hwirq_to_*().
- Clean up qpnpint_irq_set_type() and pmic_arb_find_apid()
  functions.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
 drivers/spmi/spmi-pmic-arb.c | 454 +++++++++++++++++++++----------------------
 1 file changed, 227 insertions(+), 227 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 7531519..1f2ab5c 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -51,7 +51,7 @@
 
 #define SPMI_MAPPING_TABLE_TREE_DEPTH	16	/* Maximum of 16-bits */
 #define PMIC_ARB_MAX_PPID		BIT(12) /* PPID is 12bit */
-#define PMIC_ARB_CHAN_VALID		BIT(15)
+#define PMIC_ARB_APID_VALID		BIT(15)
 
 /* Ownership Table */
 #define SPMI_OWNERSHIP_TABLE_REG(N)	(0x0700 + (4 * (N)))
@@ -97,16 +97,16 @@ enum pmic_arb_cmd_op_code {
 /* interrupt enable bit */
 #define SPMI_PIC_ACC_ENABLE_BIT		BIT(0)
 
-#define HWIRQ(slave_id, periph_id, irq_id, apid) \
+#define spec_to_hwirq(slave_id, periph_id, irq_id, apid) \
 	((((slave_id) & 0xF)   << 28) | \
 	(((periph_id) & 0xFF)  << 20) | \
 	(((irq_id)    & 0x7)   << 16) | \
 	(((apid)      & 0x1FF) << 0))
 
-#define HWIRQ_SID(hwirq)  (((hwirq) >> 28) & 0xF)
-#define HWIRQ_PER(hwirq)  (((hwirq) >> 20) & 0xFF)
-#define HWIRQ_IRQ(hwirq)  (((hwirq) >> 16) & 0x7)
-#define HWIRQ_APID(hwirq) (((hwirq) >> 0)  & 0x1FF)
+#define hwirq_to_sid(hwirq)  (((hwirq) >> 28) & 0xF)
+#define hwirq_to_per(hwirq)  (((hwirq) >> 20) & 0xFF)
+#define hwirq_to_irq(hwirq)  (((hwirq) >> 16) & 0x7)
+#define hwirq_to_apid(hwirq) (((hwirq) >> 0)  & 0x1FF)
 
 struct pmic_arb_ver_ops;
 
@@ -132,7 +132,8 @@ struct apid_data {
  * @domain:		irq domain object for PMIC IRQ domain
  * @spmic:		SPMI controller object
  * @ver_ops:		version dependent operations.
- * @ppid_to_apid	in-memory copy of PPID -> channel (APID) mapping table.
+ * @ppid_to_apid	in-memory copy of PPID -> APID mapping table.
+ *			v2 only.
  */
 struct spmi_pmic_arb {
 	void __iomem		*rd_base;
@@ -178,10 +179,10 @@ struct spmi_pmic_arb {
  */
 struct pmic_arb_ver_ops {
 	const char *ver_str;
-	int (*ppid_to_apid)(struct spmi_pmic_arb *pa, u8 sid, u16 addr,
+	int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
 			u16 *apid);
 	/* spmi commands (read_cmd, write_cmd, cmd) functionality */
-	int (*offset)(struct spmi_pmic_arb *dev, u8 sid, u16 addr,
+	int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
 		      u32 *offset);
 	u32 (*fmt_cmd)(u8 opc, u8 sid, u16 addr, u8 bc);
 	int (*non_data_cmd)(struct spmi_controller *ctrl, u8 opc, u8 sid);
@@ -192,56 +193,57 @@ struct pmic_arb_ver_ops {
 	u32 (*irq_clear)(u16 n);
 };
 
-static inline void pmic_arb_base_write(struct spmi_pmic_arb *pa,
+static inline void pmic_arb_base_write(struct spmi_pmic_arb *pmic_arb,
 				       u32 offset, u32 val)
 {
-	writel_relaxed(val, pa->wr_base + offset);
+	writel_relaxed(val, pmic_arb->wr_base + offset);
 }
 
-static inline void pmic_arb_set_rd_cmd(struct spmi_pmic_arb *pa,
+static inline void pmic_arb_set_rd_cmd(struct spmi_pmic_arb *pmic_arb,
 				       u32 offset, u32 val)
 {
-	writel_relaxed(val, pa->rd_base + offset);
+	writel_relaxed(val, pmic_arb->rd_base + offset);
 }
 
 /**
- * pa_read_data: reads pmic-arb's register and copy 1..4 bytes to buf
+ * pmic_arb_read_data: reads pmic-arb's register and copy 1..4 bytes to buf
  * @bc:		byte count -1. range: 0..3
  * @reg:	register's address
  * @buf:	output parameter, length must be bc + 1
  */
-static void pa_read_data(struct spmi_pmic_arb *pa, u8 *buf, u32 reg, u8 bc)
+static void
+pmic_arb_read_data(struct spmi_pmic_arb *pmic_arb, u8 *buf, u32 reg, u8 bc)
 {
-	u32 data = __raw_readl(pa->rd_base + reg);
+	u32 data = __raw_readl(pmic_arb->rd_base + reg);
 
 	memcpy(buf, &data, (bc & 3) + 1);
 }
 
 /**
- * pa_write_data: write 1..4 bytes from buf to pmic-arb's register
+ * pmic_arb_write_data: write 1..4 bytes from buf to pmic-arb's register
  * @bc:		byte-count -1. range: 0..3.
  * @reg:	register's address.
  * @buf:	buffer to write. length must be bc + 1.
  */
-static void
-pa_write_data(struct spmi_pmic_arb *pa, const u8 *buf, u32 reg, u8 bc)
+static void pmic_arb_write_data(struct spmi_pmic_arb *pmic_arb, const u8 *buf,
+				u32 reg, u8 bc)
 {
 	u32 data = 0;
 
 	memcpy(&data, buf, (bc & 3) + 1);
-	pmic_arb_base_write(pa, reg, data);
+	pmic_arb_base_write(pmic_arb, reg, data);
 }
 
 static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
 				  void __iomem *base, u8 sid, u16 addr)
 {
-	struct spmi_pmic_arb *pa = spmi_controller_get_drvdata(ctrl);
+	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
 	u32 status = 0;
 	u32 timeout = PMIC_ARB_TIMEOUT_US;
 	u32 offset;
 	int rc;
 
-	rc = pa->ver_ops->offset(pa, sid, addr, &offset);
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, &offset);
 	if (rc)
 		return rc;
 
@@ -252,22 +254,19 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
 
 		if (status & PMIC_ARB_STATUS_DONE) {
 			if (status & PMIC_ARB_STATUS_DENIED) {
-				dev_err(&ctrl->dev,
-					"%s: transaction denied (0x%x)\n",
+				dev_err(&ctrl->dev, "%s: transaction denied (0x%x)\n",
 					__func__, status);
 				return -EPERM;
 			}
 
 			if (status & PMIC_ARB_STATUS_FAILURE) {
-				dev_err(&ctrl->dev,
-					"%s: transaction failed (0x%x)\n",
+				dev_err(&ctrl->dev, "%s: transaction failed (0x%x)\n",
 					__func__, status);
 				return -EIO;
 			}
 
 			if (status & PMIC_ARB_STATUS_DROPPED) {
-				dev_err(&ctrl->dev,
-					"%s: transaction dropped (0x%x)\n",
+				dev_err(&ctrl->dev, "%s: transaction dropped (0x%x)\n",
 					__func__, status);
 				return -EIO;
 			}
@@ -277,8 +276,7 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
 		udelay(1);
 	}
 
-	dev_err(&ctrl->dev,
-		"%s: timeout, status 0x%x\n",
+	dev_err(&ctrl->dev, "%s: timeout, status 0x%x\n",
 		__func__, status);
 	return -ETIMEDOUT;
 }
@@ -286,22 +284,22 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
 static int
 pmic_arb_non_data_cmd_v1(struct spmi_controller *ctrl, u8 opc, u8 sid)
 {
-	struct spmi_pmic_arb *pa = spmi_controller_get_drvdata(ctrl);
+	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
 	unsigned long flags;
 	u32 cmd;
 	int rc;
 	u32 offset;
 
-	rc = pa->ver_ops->offset(pa, sid, 0, &offset);
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, 0, &offset);
 	if (rc)
 		return rc;
 
 	cmd = ((opc | 0x40) << 27) | ((sid & 0xf) << 20);
 
-	raw_spin_lock_irqsave(&pa->lock, flags);
-	pmic_arb_base_write(pa, offset + PMIC_ARB_CMD, cmd);
-	rc = pmic_arb_wait_for_done(ctrl, pa->wr_base, sid, 0);
-	raw_spin_unlock_irqrestore(&pa->lock, flags);
+	raw_spin_lock_irqsave(&pmic_arb->lock, flags);
+	pmic_arb_base_write(pmic_arb, offset + PMIC_ARB_CMD, cmd);
+	rc = pmic_arb_wait_for_done(ctrl, pmic_arb->wr_base, sid, 0);
+	raw_spin_unlock_irqrestore(&pmic_arb->lock, flags);
 
 	return rc;
 }
@@ -315,7 +313,7 @@ static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
 /* Non-data command */
 static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid)
 {
-	struct spmi_pmic_arb *pa = spmi_controller_get_drvdata(ctrl);
+	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
 
 	dev_dbg(&ctrl->dev, "cmd op:0x%x sid:%d\n", opc, sid);
 
@@ -323,26 +321,25 @@ static int pmic_arb_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid)
 	if (opc < SPMI_CMD_RESET || opc > SPMI_CMD_WAKEUP)
 		return -EINVAL;
 
-	return pa->ver_ops->non_data_cmd(ctrl, opc, sid);
+	return pmic_arb->ver_ops->non_data_cmd(ctrl, opc, sid);
 }
 
 static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 			     u16 addr, u8 *buf, size_t len)
 {
-	struct spmi_pmic_arb *pa = spmi_controller_get_drvdata(ctrl);
+	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
 	unsigned long flags;
 	u8 bc = len - 1;
 	u32 cmd;
 	int rc;
 	u32 offset;
 
-	rc = pa->ver_ops->offset(pa, sid, addr, &offset);
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, &offset);
 	if (rc)
 		return rc;
 
 	if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
-		dev_err(&ctrl->dev,
-			"pmic-arb supports 1..%d bytes per trans, but:%zu requested",
+		dev_err(&ctrl->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
 			PMIC_ARB_MAX_TRANS_BYTES, len);
 		return  -EINVAL;
 	}
@@ -357,42 +354,42 @@ static int pmic_arb_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 	else
 		return -EINVAL;
 
-	cmd = pa->ver_ops->fmt_cmd(opc, sid, addr, bc);
+	cmd = pmic_arb->ver_ops->fmt_cmd(opc, sid, addr, bc);
 
-	raw_spin_lock_irqsave(&pa->lock, flags);
-	pmic_arb_set_rd_cmd(pa, offset + PMIC_ARB_CMD, cmd);
-	rc = pmic_arb_wait_for_done(ctrl, pa->rd_base, sid, addr);
+	raw_spin_lock_irqsave(&pmic_arb->lock, flags);
+	pmic_arb_set_rd_cmd(pmic_arb, offset + PMIC_ARB_CMD, cmd);
+	rc = pmic_arb_wait_for_done(ctrl, pmic_arb->rd_base, sid, addr);
 	if (rc)
 		goto done;
 
-	pa_read_data(pa, buf, offset + PMIC_ARB_RDATA0,
+	pmic_arb_read_data(pmic_arb, buf, offset + PMIC_ARB_RDATA0,
 		     min_t(u8, bc, 3));
 
 	if (bc > 3)
-		pa_read_data(pa, buf + 4, offset + PMIC_ARB_RDATA1, bc - 4);
+		pmic_arb_read_data(pmic_arb, buf + 4, offset + PMIC_ARB_RDATA1,
+					bc - 4);
 
 done:
-	raw_spin_unlock_irqrestore(&pa->lock, flags);
+	raw_spin_unlock_irqrestore(&pmic_arb->lock, flags);
 	return rc;
 }
 
 static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 			      u16 addr, const u8 *buf, size_t len)
 {
-	struct spmi_pmic_arb *pa = spmi_controller_get_drvdata(ctrl);
+	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
 	unsigned long flags;
 	u8 bc = len - 1;
 	u32 cmd;
 	int rc;
 	u32 offset;
 
-	rc = pa->ver_ops->offset(pa, sid, addr, &offset);
+	rc = pmic_arb->ver_ops->offset(pmic_arb, sid, addr, &offset);
 	if (rc)
 		return rc;
 
 	if (bc >= PMIC_ARB_MAX_TRANS_BYTES) {
-		dev_err(&ctrl->dev,
-			"pmic-arb supports 1..%d bytes per trans, but:%zu requested",
+		dev_err(&ctrl->dev, "pmic-arb supports 1..%d bytes per trans, but:%zu requested",
 			PMIC_ARB_MAX_TRANS_BYTES, len);
 		return  -EINVAL;
 	}
@@ -409,18 +406,20 @@ static int pmic_arb_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 sid,
 	else
 		return -EINVAL;
 
-	cmd = pa->ver_ops->fmt_cmd(opc, sid, addr, bc);
+	cmd = pmic_arb->ver_ops->fmt_cmd(opc, sid, addr, bc);
 
 	/* Write data to FIFOs */
-	raw_spin_lock_irqsave(&pa->lock, flags);
-	pa_write_data(pa, buf, offset + PMIC_ARB_WDATA0, min_t(u8, bc, 3));
+	raw_spin_lock_irqsave(&pmic_arb->lock, flags);
+	pmic_arb_write_data(pmic_arb, buf, offset + PMIC_ARB_WDATA0,
+				min_t(u8, bc, 3));
 	if (bc > 3)
-		pa_write_data(pa, buf + 4, offset + PMIC_ARB_WDATA1, bc - 4);
+		pmic_arb_write_data(pmic_arb, buf + 4, offset + PMIC_ARB_WDATA1,
+					bc - 4);
 
 	/* Start the transaction */
-	pmic_arb_base_write(pa, offset + PMIC_ARB_CMD, cmd);
-	rc = pmic_arb_wait_for_done(ctrl, pa->wr_base, sid, addr);
-	raw_spin_unlock_irqrestore(&pa->lock, flags);
+	pmic_arb_base_write(pmic_arb, offset + PMIC_ARB_CMD, cmd);
+	rc = pmic_arb_wait_for_done(ctrl, pmic_arb->wr_base, sid, addr);
+	raw_spin_unlock_irqrestore(&pmic_arb->lock, flags);
 
 	return rc;
 }
@@ -446,67 +445,66 @@ struct spmi_pmic_arb_qpnpint_type {
 static void qpnpint_spmi_write(struct irq_data *d, u8 reg, void *buf,
 			       size_t len)
 {
-	struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
-	u8 sid = HWIRQ_SID(d->hwirq);
-	u8 per = HWIRQ_PER(d->hwirq);
+	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+	u8 sid = hwirq_to_sid(d->hwirq);
+	u8 per = hwirq_to_per(d->hwirq);
 
-	if (pmic_arb_write_cmd(pa->spmic, SPMI_CMD_EXT_WRITEL, sid,
+	if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
 			       (per << 8) + reg, buf, len))
-		dev_err_ratelimited(&pa->spmic->dev,
-				"failed irqchip transaction on %x\n",
+		dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
 				    d->irq);
 }
 
 static void qpnpint_spmi_read(struct irq_data *d, u8 reg, void *buf, size_t len)
 {
-	struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
-	u8 sid = HWIRQ_SID(d->hwirq);
-	u8 per = HWIRQ_PER(d->hwirq);
+	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+	u8 sid = hwirq_to_sid(d->hwirq);
+	u8 per = hwirq_to_per(d->hwirq);
 
-	if (pmic_arb_read_cmd(pa->spmic, SPMI_CMD_EXT_READL, sid,
+	if (pmic_arb_read_cmd(pmic_arb->spmic, SPMI_CMD_EXT_READL, sid,
 			      (per << 8) + reg, buf, len))
-		dev_err_ratelimited(&pa->spmic->dev,
-				"failed irqchip transaction on %x\n",
+		dev_err_ratelimited(&pmic_arb->spmic->dev, "failed irqchip transaction on %x\n",
 				    d->irq);
 }
 
-static void cleanup_irq(struct spmi_pmic_arb *pa, u16 apid, int id)
+static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id)
 {
-	u16 ppid = pa->apid_data[apid].ppid;
+	const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
+	u16 ppid = pmic_arb->apid_data[apid].ppid;
 	u8 sid = ppid >> 8;
 	u8 per = ppid & 0xFF;
 	u8 irq_mask = BIT(id);
 
-	writel_relaxed(irq_mask, pa->intr + pa->ver_ops->irq_clear(apid));
+	writel_relaxed(irq_mask, pmic_arb->intr + ver_ops->irq_clear(apid));
 
-	if (pmic_arb_write_cmd(pa->spmic, SPMI_CMD_EXT_WRITEL, sid,
+	if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
 			(per << 8) + QPNPINT_REG_LATCHED_CLR, &irq_mask, 1))
-		dev_err_ratelimited(&pa->spmic->dev,
-				"failed to ack irq_mask = 0x%x for ppid = %x\n",
+		dev_err_ratelimited(&pmic_arb->spmic->dev, "failed to ack irq_mask = 0x%x for ppid = %x\n",
 				irq_mask, ppid);
 
-	if (pmic_arb_write_cmd(pa->spmic, SPMI_CMD_EXT_WRITEL, sid,
+	if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid,
 			       (per << 8) + QPNPINT_REG_EN_CLR, &irq_mask, 1))
-		dev_err_ratelimited(&pa->spmic->dev,
-				"failed to ack irq_mask = 0x%x for ppid = %x\n",
+		dev_err_ratelimited(&pmic_arb->spmic->dev, "failed to ack irq_mask = 0x%x for ppid = %x\n",
 				irq_mask, ppid);
 }
 
-static void periph_interrupt(struct spmi_pmic_arb *pa, u16 apid)
+static void periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid)
 {
+	const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
+	u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF;
+	u8 per = pmic_arb->apid_data[apid].ppid & 0xFF;
 	unsigned int irq;
 	u32 status;
 	int id;
-	u8 sid = (pa->apid_data[apid].ppid >> 8) & 0xF;
-	u8 per = pa->apid_data[apid].ppid & 0xFF;
 
-	status = readl_relaxed(pa->intr + pa->ver_ops->irq_status(apid));
+	status = readl_relaxed(pmic_arb->intr + ver_ops->irq_status(apid));
 	while (status) {
 		id = ffs(status) - 1;
 		status &= ~BIT(id);
-		irq = irq_find_mapping(pa->domain, HWIRQ(sid, per, id, apid));
+		irq = irq_find_mapping(pmic_arb->domain,
+					spec_to_hwirq(sid, per, id, apid));
 		if (irq == 0) {
-			cleanup_irq(pa, apid, id);
+			cleanup_irq(pmic_arb, apid, id);
 			continue;
 		}
 		generic_handle_irq(irq);
@@ -515,11 +513,12 @@ static void periph_interrupt(struct spmi_pmic_arb *pa, u16 apid)
 
 static void pmic_arb_chained_irq(struct irq_desc *desc)
 {
-	struct spmi_pmic_arb *pa = irq_desc_get_handler_data(desc);
+	struct spmi_pmic_arb *pmic_arb = irq_desc_get_handler_data(desc);
+	const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
-	void __iomem *intr = pa->intr;
-	int first = pa->min_apid >> 5;
-	int last = pa->max_apid >> 5;
+	void __iomem *intr = pmic_arb->intr;
+	int first = pmic_arb->min_apid >> 5;
+	int last = pmic_arb->max_apid >> 5;
 	u32 status, enable;
 	int i, id, apid;
 
@@ -527,15 +526,15 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
 
 	for (i = first; i <= last; ++i) {
 		status = readl_relaxed(intr +
-				      pa->ver_ops->owner_acc_status(pa->ee, i));
+				    ver_ops->owner_acc_status(pmic_arb->ee, i));
 		while (status) {
 			id = ffs(status) - 1;
 			status &= ~BIT(id);
 			apid = id + i * 32;
 			enable = readl_relaxed(intr +
-					pa->ver_ops->acc_enable(apid));
+					pmic_arb->ver_ops->acc_enable(apid));
 			if (enable & SPMI_PIC_ACC_ENABLE_BIT)
-				periph_interrupt(pa, apid);
+				periph_interrupt(pmic_arb, apid);
 		}
 	}
 
@@ -544,12 +543,13 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
 
 static void qpnpint_irq_ack(struct irq_data *d)
 {
-	struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
-	u8 irq = HWIRQ_IRQ(d->hwirq);
-	u16 apid = HWIRQ_APID(d->hwirq);
+	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+	const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
+	u8 irq = hwirq_to_irq(d->hwirq);
+	u16 apid = hwirq_to_apid(d->hwirq);
 	u8 data;
 
-	writel_relaxed(BIT(irq), pa->intr + pa->ver_ops->irq_clear(apid));
+	writel_relaxed(BIT(irq), pmic_arb->intr + ver_ops->irq_clear(apid));
 
 	data = BIT(irq);
 	qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &data, 1);
@@ -557,7 +557,7 @@ static void qpnpint_irq_ack(struct irq_data *d)
 
 static void qpnpint_irq_mask(struct irq_data *d)
 {
-	u8 irq = HWIRQ_IRQ(d->hwirq);
+	u8 irq = hwirq_to_irq(d->hwirq);
 	u8 data = BIT(irq);
 
 	qpnpint_spmi_write(d, QPNPINT_REG_EN_CLR, &data, 1);
@@ -565,13 +565,13 @@ static void qpnpint_irq_mask(struct irq_data *d)
 
 static void qpnpint_irq_unmask(struct irq_data *d)
 {
-	struct spmi_pmic_arb *pa = irq_data_get_irq_chip_data(d);
-	u8 irq = HWIRQ_IRQ(d->hwirq);
-	u16 apid = HWIRQ_APID(d->hwirq);
+	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+	u8 irq = hwirq_to_irq(d->hwirq);
+	u16 apid = hwirq_to_apid(d->hwirq);
 	u8 buf[2];
 
 	writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
-		pa->intr + pa->ver_ops->acc_enable(apid));
+		pmic_arb->intr + pmic_arb->ver_ops->acc_enable(apid));
 
 	qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1);
 	if (!(buf[0] & BIT(irq))) {
@@ -589,35 +589,35 @@ static void qpnpint_irq_unmask(struct irq_data *d)
 static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
 {
 	struct spmi_pmic_arb_qpnpint_type type;
-	u8 irq = HWIRQ_IRQ(d->hwirq);
-	u8 bit_mask_irq = BIT(irq);
+	u8 irq = hwirq_to_irq(d->hwirq);
 
 	qpnpint_spmi_read(d, QPNPINT_REG_SET_TYPE, &type, sizeof(type));
 
 	if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
-		type.type |= bit_mask_irq;
+		type.type |= BIT(irq);
 		if (flow_type & IRQF_TRIGGER_RISING)
-			type.polarity_high |= bit_mask_irq;
+			type.polarity_high |= BIT(irq);
 		if (flow_type & IRQF_TRIGGER_FALLING)
-			type.polarity_low  |= bit_mask_irq;
+			type.polarity_low  |= BIT(irq);
+
+		qpnpint_spmi_write(d, QPNPINT_REG_SET_TYPE, &type,
+					sizeof(type));
+		irq_set_handler_locked(d, handle_edge_irq);
 	} else {
 		if ((flow_type & (IRQF_TRIGGER_HIGH)) &&
 		    (flow_type & (IRQF_TRIGGER_LOW)))
 			return -EINVAL;
 
-		type.type &= ~bit_mask_irq; /* level trig */
+		type.type &= ~BIT(irq); /* level trig */
 		if (flow_type & IRQF_TRIGGER_HIGH)
-			type.polarity_high |= bit_mask_irq;
+			type.polarity_high |= BIT(irq);
 		else
-			type.polarity_low  |= bit_mask_irq;
-	}
-
-	qpnpint_spmi_write(d, QPNPINT_REG_SET_TYPE, &type, sizeof(type));
+			type.polarity_low  |= BIT(irq);
 
-	if (flow_type & IRQ_TYPE_EDGE_BOTH)
-		irq_set_handler_locked(d, handle_edge_irq);
-	else
+		qpnpint_spmi_write(d, QPNPINT_REG_SET_TYPE, &type,
+					sizeof(type));
 		irq_set_handler_locked(d, handle_level_irq);
+	}
 
 	return 0;
 }
@@ -626,7 +626,7 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
 				     enum irqchip_irq_state which,
 				     bool *state)
 {
-	u8 irq = HWIRQ_IRQ(d->hwirq);
+	u8 irq = hwirq_to_irq(d->hwirq);
 	u8 status = 0;
 
 	if (which != IRQCHIP_STATE_LINE_LEVEL)
@@ -656,12 +656,11 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
 					   unsigned long *out_hwirq,
 					   unsigned int *out_type)
 {
-	struct spmi_pmic_arb *pa = d->host_data;
+	struct spmi_pmic_arb *pmic_arb = d->host_data;
 	int rc;
 	u16 apid;
 
-	dev_dbg(&pa->spmic->dev,
-		"intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
+	dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
 		intspec[0], intspec[1], intspec[2]);
 
 	if (irq_domain_get_of_node(d) != controller)
@@ -671,25 +670,24 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
 	if (intspec[0] > 0xF || intspec[1] > 0xFF || intspec[2] > 0x7)
 		return -EINVAL;
 
-	rc = pa->ver_ops->ppid_to_apid(pa, intspec[0],
-			(intspec[1] << 8), &apid);
+	rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, intspec[0],
+					    (intspec[1] << 8), &apid);
 	if (rc < 0) {
-		dev_err(&pa->spmic->dev,
-		"failed to xlate sid = 0x%x, periph = 0x%x, irq = %x rc = %d\n",
+		dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = 0x%x, periph = 0x%x, irq = %x rc = %d\n",
 		intspec[0], intspec[1], intspec[2], rc);
 		return rc;
 	}
 
 	/* Keep track of {max,min}_apid for bounding search during interrupt */
-	if (apid > pa->max_apid)
-		pa->max_apid = apid;
-	if (apid < pa->min_apid)
-		pa->min_apid = apid;
+	if (apid > pmic_arb->max_apid)
+		pmic_arb->max_apid = apid;
+	if (apid < pmic_arb->min_apid)
+		pmic_arb->min_apid = apid;
 
-	*out_hwirq = HWIRQ(intspec[0], intspec[1], intspec[2], apid);
+	*out_hwirq = spec_to_hwirq(intspec[0], intspec[1], intspec[2], apid);
 	*out_type  = intspec[3] & IRQ_TYPE_SENSE_MASK;
 
-	dev_dbg(&pa->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
+	dev_dbg(&pmic_arb->spmic->dev, "out_hwirq = %lu\n", *out_hwirq);
 
 	return 0;
 }
@@ -698,9 +696,9 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 				  unsigned int virq,
 				  irq_hw_number_t hwirq)
 {
-	struct spmi_pmic_arb *pa = d->host_data;
+	struct spmi_pmic_arb *pmic_arb = d->host_data;
 
-	dev_dbg(&pa->spmic->dev, "virq = %u, hwirq = %lu\n", virq, hwirq);
+	dev_dbg(&pmic_arb->spmic->dev, "virq = %u, hwirq = %lu\n", virq, hwirq);
 
 	irq_set_chip_and_handler(virq, &pmic_arb_irqchip, handle_level_irq);
 	irq_set_chip_data(virq, d->host_data);
@@ -708,24 +706,24 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 	return 0;
 }
 
-static int
-pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u16 *apid)
+static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u8 sid,
+				    u16 addr, u16 *apid)
 {
 	u16 ppid = sid << 8 | ((addr >> 8) & 0xFF);
-	u32 *mapping_table = pa->mapping_table;
+	u32 *mapping_table = pmic_arb->mapping_table;
 	int index = 0, i;
 	u16 apid_valid;
 	u32 data;
 
-	apid_valid = pa->ppid_to_apid[ppid];
-	if (apid_valid & PMIC_ARB_CHAN_VALID) {
-		*apid = (apid_valid & ~PMIC_ARB_CHAN_VALID);
+	apid_valid = pmic_arb->ppid_to_apid[ppid];
+	if (apid_valid & PMIC_ARB_APID_VALID) {
+		*apid = apid_valid & ~PMIC_ARB_APID_VALID;
 		return 0;
 	}
 
 	for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
-		if (!test_and_set_bit(index, pa->mapping_table_valid))
-			mapping_table[index] = readl_relaxed(pa->cnfg +
+		if (!test_and_set_bit(index, pmic_arb->mapping_table_valid))
+			mapping_table[index] = readl_relaxed(pmic_arb->cnfg +
 						SPMI_MAPPING_TABLE_REG(index));
 
 		data = mapping_table[index];
@@ -735,9 +733,9 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 				index = SPMI_MAPPING_BIT_IS_1_RESULT(data);
 			} else {
 				*apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
-				pa->ppid_to_apid[ppid]
-					= *apid | PMIC_ARB_CHAN_VALID;
-				pa->apid_data[*apid].ppid = ppid;
+				pmic_arb->ppid_to_apid[ppid]
+					= *apid | PMIC_ARB_APID_VALID;
+				pmic_arb->apid_data[*apid].ppid = ppid;
 				return 0;
 			}
 		} else {
@@ -745,9 +743,9 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 				index = SPMI_MAPPING_BIT_IS_0_RESULT(data);
 			} else {
 				*apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
-				pa->ppid_to_apid[ppid]
-					= *apid | PMIC_ARB_CHAN_VALID;
-				pa->apid_data[*apid].ppid = ppid;
+				pmic_arb->ppid_to_apid[ppid]
+					= *apid | PMIC_ARB_APID_VALID;
+				pmic_arb->apid_data[*apid].ppid = ppid;
 				return 0;
 			}
 		}
@@ -757,78 +755,77 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 }
 
 /* v1 offset per ee */
-static int
-pmic_arb_offset_v1(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u32 *offset)
+static int pmic_arb_offset_v1(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
+				u32 *offset)
 {
-	*offset = 0x800 + 0x80 * pa->channel;
+	*offset = 0x800 + 0x80 * pmic_arb->channel;
 	return 0;
 }
 
-static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pa, u16 ppid)
+static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
 {
+	struct apid_data *apid_info = &pmic_arb->apid_data[pmic_arb->last_apid];
 	u32 regval, offset;
-	u16 apid;
-	u16 id;
+	u16 id, i;
 
 	/*
-	 * PMIC_ARB_REG_CHNL is a table in HW mapping channel to ppid.
+	 * PMIC_ARB_REG_APID is a table in HW mapping apid to ppid.
 	 * ppid_to_apid is an in-memory invert of that table.
 	 */
-	for (apid = pa->last_apid; ; apid++) {
-		offset = PMIC_ARB_REG_CHNL(apid);
-		if (offset >= pa->core_size)
+	for (i = pmic_arb->last_apid; ; i++, apid_info++) {
+		offset = PMIC_ARB_REG_CHNL(i);
+		if (offset >= pmic_arb->core_size)
 			break;
 
-		regval = readl_relaxed(pa->cnfg +
-				      SPMI_OWNERSHIP_TABLE_REG(apid));
-		pa->apid_data[apid].owner = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
+		regval = readl_relaxed(pmic_arb->cnfg +
+					SPMI_OWNERSHIP_TABLE_REG(i));
+		apid_info->owner = SPMI_OWNERSHIP_PERIPH2OWNER(regval);
 
-		regval = readl_relaxed(pa->core + offset);
+		regval = readl_relaxed(pmic_arb->core + offset);
 		if (!regval)
 			continue;
 
 		id = (regval >> 8) & PMIC_ARB_PPID_MASK;
-		pa->ppid_to_apid[id] = apid | PMIC_ARB_CHAN_VALID;
-		pa->apid_data[apid].ppid = id;
+		pmic_arb->ppid_to_apid[id] = i | PMIC_ARB_APID_VALID;
+		apid_info->ppid = id;
 		if (id == ppid) {
-			apid |= PMIC_ARB_CHAN_VALID;
+			i |= PMIC_ARB_APID_VALID;
 			break;
 		}
 	}
-	pa->last_apid = apid & ~PMIC_ARB_CHAN_VALID;
+	pmic_arb->last_apid = i & ~PMIC_ARB_APID_VALID;
 
-	return apid;
+	return i;
 }
 
-
-static int
-pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u16 *apid)
+static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u8 sid,
+				    u16 addr, u16 *apid)
 {
 	u16 ppid = (sid << 8) | (addr >> 8);
 	u16 apid_valid;
 
-	apid_valid = pa->ppid_to_apid[ppid];
-	if (!(apid_valid & PMIC_ARB_CHAN_VALID))
-		apid_valid = pmic_arb_find_apid(pa, ppid);
-	if (!(apid_valid & PMIC_ARB_CHAN_VALID))
+	apid_valid = pmic_arb->ppid_to_apid[ppid];
+	if (!(apid_valid & PMIC_ARB_APID_VALID))
+		apid_valid = pmic_arb_find_apid(pmic_arb, ppid);
+	if (!(apid_valid & PMIC_ARB_APID_VALID))
 		return -ENODEV;
 
-	*apid = (apid_valid & ~PMIC_ARB_CHAN_VALID);
+	*apid = apid_valid & ~PMIC_ARB_APID_VALID;
 	return 0;
 }
 
 /* v2 offset per ppid and per ee */
-static int
-pmic_arb_offset_v2(struct spmi_pmic_arb *pa, u8 sid, u16 addr, u32 *offset)
+static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
+				u32 *offset)
 {
 	u16 apid;
 	int rc;
 
-	rc = pmic_arb_ppid_to_apid_v2(pa, sid, addr, &apid);
+	rc = pmic_arb_ppid_to_apid_v2(pmic_arb, sid, addr, &apid);
 	if (rc < 0)
 		return rc;
 
-	*offset = 0x1000 * pa->ee + 0x8000 * apid;
+	*offset = 0x1000 * pmic_arb->ee + 0x8000 * apid;
 	return 0;
 }
 
@@ -930,22 +927,23 @@ static u32 pmic_arb_irq_clear_v2(u16 n)
 
 static int spmi_pmic_arb_probe(struct platform_device *pdev)
 {
-	struct spmi_pmic_arb *pa;
+	struct spmi_pmic_arb *pmic_arb;
 	struct spmi_controller *ctrl;
 	struct resource *res;
 	void __iomem *core;
+	u32 *mapping_table;
 	u32 channel, ee, hw_ver;
 	int err;
 
-	ctrl = spmi_controller_alloc(&pdev->dev, sizeof(*pa));
+	ctrl = spmi_controller_alloc(&pdev->dev, sizeof(*pmic_arb));
 	if (!ctrl)
 		return -ENOMEM;
 
-	pa = spmi_controller_get_drvdata(ctrl);
-	pa->spmic = ctrl;
+	pmic_arb = spmi_controller_get_drvdata(ctrl);
+	pmic_arb->spmic = ctrl;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
-	pa->core_size = resource_size(res);
+	pmic_arb->core_size = resource_size(res);
 
 	core = devm_ioremap_resource(&ctrl->dev, res);
 	if (IS_ERR(core)) {
@@ -953,9 +951,10 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 		goto err_put_ctrl;
 	}
 
-	pa->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
-					sizeof(*pa->ppid_to_apid), GFP_KERNEL);
-	if (!pa->ppid_to_apid) {
+	pmic_arb->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
+					      sizeof(*pmic_arb->ppid_to_apid),
+					      GFP_KERNEL);
+	if (!pmic_arb->ppid_to_apid) {
 		err = -ENOMEM;
 		goto err_put_ctrl;
 	}
@@ -963,54 +962,54 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 	hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
 
 	if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
-		pa->ver_ops = &pmic_arb_v1;
-		pa->wr_base = core;
-		pa->rd_base = core;
+		pmic_arb->ver_ops = &pmic_arb_v1;
+		pmic_arb->wr_base = core;
+		pmic_arb->rd_base = core;
 	} else {
-		pa->core = core;
+		pmic_arb->core = core;
 
 		if (hw_ver < PMIC_ARB_VERSION_V3_MIN)
-			pa->ver_ops = &pmic_arb_v2;
+			pmic_arb->ver_ops = &pmic_arb_v2;
 		else
-			pa->ver_ops = &pmic_arb_v3;
+			pmic_arb->ver_ops = &pmic_arb_v3;
 
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 						   "obsrvr");
-		pa->rd_base = devm_ioremap_resource(&ctrl->dev, res);
-		if (IS_ERR(pa->rd_base)) {
-			err = PTR_ERR(pa->rd_base);
+		pmic_arb->rd_base = devm_ioremap_resource(&ctrl->dev, res);
+		if (IS_ERR(pmic_arb->rd_base)) {
+			err = PTR_ERR(pmic_arb->rd_base);
 			goto err_put_ctrl;
 		}
 
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 						   "chnls");
-		pa->wr_base = devm_ioremap_resource(&ctrl->dev, res);
-		if (IS_ERR(pa->wr_base)) {
-			err = PTR_ERR(pa->wr_base);
+		pmic_arb->wr_base = devm_ioremap_resource(&ctrl->dev, res);
+		if (IS_ERR(pmic_arb->wr_base)) {
+			err = PTR_ERR(pmic_arb->wr_base);
 			goto err_put_ctrl;
 		}
 	}
 
 	dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
-		 pa->ver_ops->ver_str, hw_ver);
+		 pmic_arb->ver_ops->ver_str, hw_ver);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "intr");
-	pa->intr = devm_ioremap_resource(&ctrl->dev, res);
-	if (IS_ERR(pa->intr)) {
-		err = PTR_ERR(pa->intr);
+	pmic_arb->intr = devm_ioremap_resource(&ctrl->dev, res);
+	if (IS_ERR(pmic_arb->intr)) {
+		err = PTR_ERR(pmic_arb->intr);
 		goto err_put_ctrl;
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cnfg");
-	pa->cnfg = devm_ioremap_resource(&ctrl->dev, res);
-	if (IS_ERR(pa->cnfg)) {
-		err = PTR_ERR(pa->cnfg);
+	pmic_arb->cnfg = devm_ioremap_resource(&ctrl->dev, res);
+	if (IS_ERR(pmic_arb->cnfg)) {
+		err = PTR_ERR(pmic_arb->cnfg);
 		goto err_put_ctrl;
 	}
 
-	pa->irq = platform_get_irq_byname(pdev, "periph_irq");
-	if (pa->irq < 0) {
-		err = pa->irq;
+	pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq");
+	if (pmic_arb->irq < 0) {
+		err = pmic_arb->irq;
 		goto err_put_ctrl;
 	}
 
@@ -1027,7 +1026,7 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 		goto err_put_ctrl;
 	}
 
-	pa->channel = channel;
+	pmic_arb->channel = channel;
 
 	err = of_property_read_u32(pdev->dev.of_node, "qcom,ee", &ee);
 	if (err) {
@@ -1041,38 +1040,39 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 		goto err_put_ctrl;
 	}
 
-	pa->ee = ee;
-
-	pa->mapping_table = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PERIPHS - 1,
-					sizeof(*pa->mapping_table), GFP_KERNEL);
-	if (!pa->mapping_table) {
+	pmic_arb->ee = ee;
+	mapping_table = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PERIPHS - 1,
+					sizeof(*mapping_table), GFP_KERNEL);
+	if (!mapping_table) {
 		err = -ENOMEM;
 		goto err_put_ctrl;
 	}
 
+	pmic_arb->mapping_table = mapping_table;
 	/* Initialize max_apid/min_apid to the opposite bounds, during
 	 * the irq domain translation, we are sure to update these */
-	pa->max_apid = 0;
-	pa->min_apid = PMIC_ARB_MAX_PERIPHS - 1;
+	pmic_arb->max_apid = 0;
+	pmic_arb->min_apid = PMIC_ARB_MAX_PERIPHS - 1;
 
 	platform_set_drvdata(pdev, ctrl);
-	raw_spin_lock_init(&pa->lock);
+	raw_spin_lock_init(&pmic_arb->lock);
 
 	ctrl->cmd = pmic_arb_cmd;
 	ctrl->read_cmd = pmic_arb_read_cmd;
 	ctrl->write_cmd = pmic_arb_write_cmd;
 
 	dev_dbg(&pdev->dev, "adding irq domain\n");
-	pa->domain = irq_domain_add_tree(pdev->dev.of_node,
-					 &pmic_arb_irq_domain_ops, pa);
-	if (!pa->domain) {
+	pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node,
+					 &pmic_arb_irq_domain_ops, pmic_arb);
+	if (!pmic_arb->domain) {
 		dev_err(&pdev->dev, "unable to create irq_domain\n");
 		err = -ENOMEM;
 		goto err_put_ctrl;
 	}
 
-	irq_set_chained_handler_and_data(pa->irq, pmic_arb_chained_irq, pa);
-	enable_irq_wake(pa->irq);
+	irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq,
+					pmic_arb);
+	enable_irq_wake(pmic_arb->irq);
 
 	err = spmi_controller_add(ctrl);
 	if (err)
@@ -1081,8 +1081,8 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 	return 0;
 
 err_domain_remove:
-	irq_set_chained_handler_and_data(pa->irq, NULL, NULL);
-	irq_domain_remove(pa->domain);
+	irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
+	irq_domain_remove(pmic_arb->domain);
 err_put_ctrl:
 	spmi_controller_put(ctrl);
 	return err;
@@ -1091,10 +1091,10 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 static int spmi_pmic_arb_remove(struct platform_device *pdev)
 {
 	struct spmi_controller *ctrl = platform_get_drvdata(pdev);
-	struct spmi_pmic_arb *pa = spmi_controller_get_drvdata(ctrl);
+	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
 	spmi_controller_remove(ctrl);
-	irq_set_chained_handler_and_data(pa->irq, NULL, NULL);
-	irq_domain_remove(pa->domain);
+	irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL);
+	irq_domain_remove(pmic_arb->domain);
 	spmi_controller_put(ctrl);
 	return 0;
 }
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 2/5] spmi: pmic-arb: rename pa_xx to pmic_arb_xx and other code cleanup

[Stephen Boyd]

On 07/03, Kiran Gunda wrote:
> This patch cleans up the following.
> 
> - Rename the "pa" to "pmic_arb".
> - Rename the spmi_pmic_arb *dev to spmi_pmic_arb *pmic_arb.
> - Rename the pa_{read,write}_data() functions to
>   pmic_arb_{read,write}_data().
> - Rename channel to APID.
> - Rename the HWIRQ_*() macros to hwirq_to_*().
> - Clean up qpnpint_irq_set_type() and pmic_arb_find_apid()
>   functions.
> 
> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
> ---
>  drivers/spmi/spmi-pmic-arb.c | 454 +++++++++++++++++++++----------------------
>  1 file changed, 227 insertions(+), 227 deletions(-)
> 

This patch is large and noisy. Have you tried running
scripts/objdiff on this to make sure nothing changed?

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 2/5] spmi: pmic-arb: rename pa_xx to pmic_arb_xx and other code cleanup

[kgunda]

On 2017-07-06 12:19, Stephen Boyd wrote:
> On 07/03, Kiran Gunda wrote:
>> This patch cleans up the following.
>> 
>> - Rename the "pa" to "pmic_arb".
>> - Rename the spmi_pmic_arb *dev to spmi_pmic_arb *pmic_arb.
>> - Rename the pa_{read,write}_data() functions to
>>   pmic_arb_{read,write}_data().
>> - Rename channel to APID.
>> - Rename the HWIRQ_*() macros to hwirq_to_*().
>> - Clean up qpnpint_irq_set_type() and pmic_arb_find_apid()
>>   functions.
>> 
>> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
>> ---
>>  drivers/spmi/spmi-pmic-arb.c | 454 
>> +++++++++++++++++++++----------------------
>>  1 file changed, 227 insertions(+), 227 deletions(-)
>> 
> 
> This patch is large and noisy. Have you tried running
> scripts/objdiff on this to make sure nothing changed?
The objdiff will not be helpful here as this patch is for
the renaming and clean-up to address your multiple minor
comments on the earlier patches, which has minor code changes.

I have keenly checked the patch and made sure that there are no
unintended changes, except (+ *   v2 only.) one extra line in
documentation of struct apid_data {. I will remove this and
upload the next patch.

[PATCH V1 3/5] spmi: pmic-arb: replace the writel_relaxed with __raw_writel

[Kiran Gunda]

Replace the writel_relaxed with __raw_writel to avoid byte swapping
in pmic_arb_write_data() function. That way the code is independent
of the CPU endianness.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
 drivers/spmi/spmi-pmic-arb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 1f2ab5c..d8c857a 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -231,7 +231,7 @@ static void pmic_arb_write_data(struct spmi_pmic_arb *pmic_arb, const u8 *buf,
 	u32 data = 0;
 
 	memcpy(&data, buf, (bc & 3) + 1);
-	pmic_arb_base_write(pmic_arb, reg, data);
+	__raw_writel(data, pmic_arb->wr_base + reg);
 }
 
 static int pmic_arb_wait_for_done(struct spmi_controller *ctrl,
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 3/5] spmi: pmic-arb: replace the writel_relaxed with __raw_writel

[Stephen Boyd]

On 07/03, Kiran Gunda wrote:
> Replace the writel_relaxed with __raw_writel to avoid byte swapping
> in pmic_arb_write_data() function. That way the code is independent
> of the CPU endianness.
> 
> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
> ---

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH V1 4/5] spmi: pmic-arb: return the value instead of passing by pointer

[Kiran Gunda]

Returning the output value from a function, when it is possible, is the
better and cleaner way than passing it by the pointer. Hence, modify
the ppid_to_apid mapping function to return apid instead of passing
it by a pointer. While at it, pass the ppid as function parameter to
ppid_to_apid mapping function instead of passing the sid and addr.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
 drivers/spmi/spmi-pmic-arb.c | 47 ++++++++++++++++++++++----------------------
 1 file changed, 23 insertions(+), 24 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index d8c857a..5285245 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -179,8 +179,7 @@ struct spmi_pmic_arb {
  */
 struct pmic_arb_ver_ops {
 	const char *ver_str;
-	int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
-			u16 *apid);
+	int (*ppid_to_apid)(struct spmi_pmic_arb *pmic_arb, u16 ppid);
 	/* spmi commands (read_cmd, write_cmd, cmd) functionality */
 	int (*offset)(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
 		      u32 *offset);
@@ -657,8 +656,8 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
 					   unsigned int *out_type)
 {
 	struct spmi_pmic_arb *pmic_arb = d->host_data;
+	u16 apid, ppid;
 	int rc;
-	u16 apid;
 
 	dev_dbg(&pmic_arb->spmic->dev, "intspec[0] 0x%1x intspec[1] 0x%02x intspec[2] 0x%02x\n",
 		intspec[0], intspec[1], intspec[2]);
@@ -670,14 +669,15 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
 	if (intspec[0] > 0xF || intspec[1] > 0xFF || intspec[2] > 0x7)
 		return -EINVAL;
 
-	rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, intspec[0],
-					    (intspec[1] << 8), &apid);
+	ppid = intspec[0] << 8 | intspec[1];
+	rc = pmic_arb->ver_ops->ppid_to_apid(pmic_arb, ppid);
 	if (rc < 0) {
 		dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = 0x%x, periph = 0x%x, irq = %x rc = %d\n",
 		intspec[0], intspec[1], intspec[2], rc);
 		return rc;
 	}
 
+	apid = rc;
 	/* Keep track of {max,min}_apid for bounding search during interrupt */
 	if (apid > pmic_arb->max_apid)
 		pmic_arb->max_apid = apid;
@@ -706,19 +706,18 @@ static int qpnpint_irq_domain_map(struct irq_domain *d,
 	return 0;
 }
 
-static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u8 sid,
-				    u16 addr, u16 *apid)
+static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u16 ppid)
 {
-	u16 ppid = sid << 8 | ((addr >> 8) & 0xFF);
 	u32 *mapping_table = pmic_arb->mapping_table;
 	int index = 0, i;
 	u16 apid_valid;
+	u16 apid;
 	u32 data;
 
 	apid_valid = pmic_arb->ppid_to_apid[ppid];
 	if (apid_valid & PMIC_ARB_APID_VALID) {
-		*apid = apid_valid & ~PMIC_ARB_APID_VALID;
-		return 0;
+		apid = apid_valid & ~PMIC_ARB_APID_VALID;
+		return apid;
 	}
 
 	for (i = 0; i < SPMI_MAPPING_TABLE_TREE_DEPTH; ++i) {
@@ -732,21 +731,21 @@ static int pmic_arb_ppid_to_apid_v1(struct spmi_pmic_arb *pmic_arb, u8 sid,
 			if (SPMI_MAPPING_BIT_IS_1_FLAG(data)) {
 				index = SPMI_MAPPING_BIT_IS_1_RESULT(data);
 			} else {
-				*apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
+				apid = SPMI_MAPPING_BIT_IS_1_RESULT(data);
 				pmic_arb->ppid_to_apid[ppid]
-					= *apid | PMIC_ARB_APID_VALID;
-				pmic_arb->apid_data[*apid].ppid = ppid;
-				return 0;
+					= apid | PMIC_ARB_APID_VALID;
+				pmic_arb->apid_data[apid].ppid = ppid;
+				return apid;
 			}
 		} else {
 			if (SPMI_MAPPING_BIT_IS_0_FLAG(data)) {
 				index = SPMI_MAPPING_BIT_IS_0_RESULT(data);
 			} else {
-				*apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
+				apid = SPMI_MAPPING_BIT_IS_0_RESULT(data);
 				pmic_arb->ppid_to_apid[ppid]
-					= *apid | PMIC_ARB_APID_VALID;
-				pmic_arb->apid_data[*apid].ppid = ppid;
-				return 0;
+					= apid | PMIC_ARB_APID_VALID;
+				pmic_arb->apid_data[apid].ppid = ppid;
+				return apid;
 			}
 		}
 	}
@@ -798,10 +797,8 @@ static u16 pmic_arb_find_apid(struct spmi_pmic_arb *pmic_arb, u16 ppid)
 	return i;
 }
 
-static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u8 sid,
-				    u16 addr, u16 *apid)
+static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u16 ppid)
 {
-	u16 ppid = (sid << 8) | (addr >> 8);
 	u16 apid_valid;
 
 	apid_valid = pmic_arb->ppid_to_apid[ppid];
@@ -810,8 +807,7 @@ static int pmic_arb_ppid_to_apid_v2(struct spmi_pmic_arb *pmic_arb, u8 sid,
 	if (!(apid_valid & PMIC_ARB_APID_VALID))
 		return -ENODEV;
 
-	*apid = apid_valid & ~PMIC_ARB_APID_VALID;
-	return 0;
+	return apid_valid & ~PMIC_ARB_APID_VALID;
 }
 
 /* v2 offset per ppid and per ee */
@@ -819,12 +815,15 @@ static int pmic_arb_offset_v2(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
 				u32 *offset)
 {
 	u16 apid;
+	u16 ppid;
 	int rc;
 
-	rc = pmic_arb_ppid_to_apid_v2(pmic_arb, sid, addr, &apid);
+	ppid = sid << 8 | ((addr >> 8) & 0xFF);
+	rc = pmic_arb_ppid_to_apid_v2(pmic_arb, ppid);
 	if (rc < 0)
 		return rc;
 
+	apid = rc;
 	*offset = 0x1000 * pmic_arb->ee + 0x8000 * apid;
 	return 0;
 }
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 4/5] spmi: pmic-arb: return the value instead of passing by pointer

[Stephen Boyd]

On 07/03, Kiran Gunda wrote:
> Returning the output value from a function, when it is possible, is the
> better and cleaner way than passing it by the pointer. Hence, modify
> the ppid_to_apid mapping function to return apid instead of passing
> it by a pointer. While at it, pass the ppid as function parameter to
> ppid_to_apid mapping function instead of passing the sid and addr.
> 
> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
> ---

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH V1 5/5] spmi: pmic-arb: use irq_chip callback to set spmi irq wakeup capability

[Kiran Gunda]

Currently the driver sets the pmic_arb core interrupt as wakeup capable
irrespective of the child irqs which causes the system to wakeup
unnecessarily. To fix this, set the core interrupt as wakeup capable
only if any of the child irqs request for it. Do this by marking it as
wakeup capable in the irq_set_wake callback.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
 drivers/spmi/spmi-pmic-arb.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 5285245..2d2e39c 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -621,6 +621,19 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
 	return 0;
 }
 
+static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
+	int ret;
+
+	if (on)
+		ret = enable_irq_wake(pmic_arb->irq);
+	else
+		ret = disable_irq_wake(pmic_arb->irq);
+
+	return ret;
+}
+
 static int qpnpint_get_irqchip_state(struct irq_data *d,
 				     enum irqchip_irq_state which,
 				     bool *state)
@@ -643,9 +656,9 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
 	.irq_mask	= qpnpint_irq_mask,
 	.irq_unmask	= qpnpint_irq_unmask,
 	.irq_set_type	= qpnpint_irq_set_type,
+	.irq_set_wake	= qpnpint_irq_set_wake,
 	.irq_get_irqchip_state	= qpnpint_get_irqchip_state,
-	.flags		= IRQCHIP_MASK_ON_SUSPEND
-			| IRQCHIP_SKIP_SET_WAKE,
+	.flags		= IRQCHIP_MASK_ON_SUSPEND,
 };
 
 static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
@@ -1071,8 +1084,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 
 	irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq,
 					pmic_arb);
-	enable_irq_wake(pmic_arb->irq);
-
 	err = spmi_controller_add(ctrl);
 	if (err)
 		goto err_domain_remove;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 5/5] spmi: pmic-arb: use irq_chip callback to set spmi irq wakeup capability

[Stephen Boyd]

On 07/03, Kiran Gunda wrote:
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 5285245..2d2e39c 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -621,6 +621,19 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type)
>  	return 0;
>  }
>  
> +static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
> +{
> +	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
> +	int ret;
> +
> +	if (on)
> +		ret = enable_irq_wake(pmic_arb->irq);
> +	else
> +		ret = disable_irq_wake(pmic_arb->irq);

Could be simplified to 

	return irq_set_irq_wake(pmic_arb->irq, on);

?

> +
> +	return ret;
> +}
> +
>  static int qpnpint_get_irqchip_state(struct irq_data *d,
>  				     enum irqchip_irq_state which,
>  				     bool *state)

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH V1 5/5] spmi: pmic-arb: use irq_chip callback to set spmi irq wakeup capability

[kgunda]

On 2017-07-06 12:16, Stephen Boyd wrote:
> On 07/03, Kiran Gunda wrote:
>> diff --git a/drivers/spmi/spmi-pmic-arb.c 
>> b/drivers/spmi/spmi-pmic-arb.c
>> index 5285245..2d2e39c 100644
>> --- a/drivers/spmi/spmi-pmic-arb.c
>> +++ b/drivers/spmi/spmi-pmic-arb.c
>> @@ -621,6 +621,19 @@ static int qpnpint_irq_set_type(struct irq_data 
>> *d, unsigned int flow_type)
>>  	return 0;
>>  }
>> 
>> +static int qpnpint_irq_set_wake(struct irq_data *d, unsigned int on)
>> +{
>> +	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
>> +	int ret;
>> +
>> +	if (on)
>> +		ret = enable_irq_wake(pmic_arb->irq);
>> +	else
>> +		ret = disable_irq_wake(pmic_arb->irq);
> 
> Could be simplified to
> 
> 	return irq_set_irq_wake(pmic_arb->irq, on);
> 
> ?
> 
yes. Will modify it.
>> +
>> +	return ret;
>> +}
>> +
>>  static int qpnpint_get_irqchip_state(struct irq_data *d,
>>  				     enum irqchip_irq_state which,
>>  				     bool *state)