From: Stephen Boyd <sboyd@codeaurora.org>
To: Samuel Ortiz <sameo@linux.intel.com>, Lee Jones <lee.jones@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Mark Brown <broonie@kernel.org>
Subject: [PATCH v2 5/7] mfd: pm8921: Use ssbi regmap
Date: Mon, 23 Dec 2013 12:46:01 -0800 [thread overview]
Message-ID: <1387831563-13535-6-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1387831563-13535-1-git-send-email-sboyd@codeaurora.org>
Use a regmap so that the pm8xxx read/write APIs can be removed
once all consumer drivers are converted.
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/mfd/Kconfig | 1 +
drivers/mfd/pm8921-core.c | 72 +++++++++++++++++++++++++++--------------------
2 files changed, 42 insertions(+), 31 deletions(-)
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 35007ed..e4a3ae2 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -455,6 +455,7 @@ config MFD_PM8921_CORE
depends on (ARCH_MSM || HEXAGON)
select MFD_CORE
select MFD_PM8XXX
+ select REGMAP
help
If you say yes to this option, support will be included for the
built-in PM8921 PMIC chip.
diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c
index 5d1d509..d13cb6e 100644
--- a/drivers/mfd/pm8921-core.c
+++ b/drivers/mfd/pm8921-core.c
@@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/ssbi.h>
+#include <linux/regmap.h>
#include <linux/of_platform.h>
#include <linux/mfd/core.h>
#include <linux/mfd/pm8xxx/core.h>
@@ -55,6 +56,7 @@
struct pm_irq_chip {
struct device *dev;
+ struct regmap *regmap;
spinlock_t pm_irq_lock;
struct irq_domain *domain;
unsigned int num_irqs;
@@ -68,29 +70,19 @@ struct pm8921 {
struct pm_irq_chip *irq_chip;
};
-static int pm8xxx_read_root_irq(const struct pm_irq_chip *chip, u8 *rp)
-{
- return pm8xxx_readb(chip->dev, SSBI_REG_ADDR_IRQ_ROOT, rp);
-}
-
-static int pm8xxx_read_master_irq(const struct pm_irq_chip *chip, u8 m, u8 *bp)
-{
- return pm8xxx_readb(chip->dev,
- SSBI_REG_ADDR_IRQ_M_STATUS1 + m, bp);
-}
-
-static int pm8xxx_read_block_irq(struct pm_irq_chip *chip, u8 bp, u8 *ip)
+static int pm8xxx_read_block_irq(struct pm_irq_chip *chip, unsigned int bp,
+ unsigned int *ip)
{
int rc;
spin_lock(&chip->pm_irq_lock);
- rc = pm8xxx_writeb(chip->dev, SSBI_REG_ADDR_IRQ_BLK_SEL, bp);
+ rc = regmap_write(chip->regmap, SSBI_REG_ADDR_IRQ_BLK_SEL, bp);
if (rc) {
pr_err("Failed Selecting Block %d rc=%d\n", bp, rc);
goto bail;
}
- rc = pm8xxx_readb(chip->dev, SSBI_REG_ADDR_IRQ_IT_STATUS, ip);
+ rc = regmap_read(chip->regmap, SSBI_REG_ADDR_IRQ_IT_STATUS, ip);
if (rc)
pr_err("Failed Reading Status rc=%d\n", rc);
bail:
@@ -98,19 +90,20 @@ bail:
return rc;
}
-static int pm8xxx_config_irq(struct pm_irq_chip *chip, u8 bp, u8 cp)
+static int
+pm8xxx_config_irq(struct pm_irq_chip *chip, unsigned int bp, unsigned int cp)
{
int rc;
spin_lock(&chip->pm_irq_lock);
- rc = pm8xxx_writeb(chip->dev, SSBI_REG_ADDR_IRQ_BLK_SEL, bp);
+ rc = regmap_write(chip->regmap, SSBI_REG_ADDR_IRQ_BLK_SEL, bp);
if (rc) {
pr_err("Failed Selecting Block %d rc=%d\n", bp, rc);
goto bail;
}
cp |= PM_IRQF_WRITE;
- rc = pm8xxx_writeb(chip->dev, SSBI_REG_ADDR_IRQ_CONFIG, cp);
+ rc = regmap_write(chip->regmap, SSBI_REG_ADDR_IRQ_CONFIG, cp);
if (rc)
pr_err("Failed Configuring IRQ rc=%d\n", rc);
bail:
@@ -121,7 +114,7 @@ bail:
static int pm8xxx_irq_block_handler(struct pm_irq_chip *chip, int block)
{
int pmirq, irq, i, ret = 0;
- u8 bits;
+ unsigned int bits;
ret = pm8xxx_read_block_irq(chip, block, &bits);
if (ret) {
@@ -146,10 +139,11 @@ static int pm8xxx_irq_block_handler(struct pm_irq_chip *chip, int block)
static int pm8xxx_irq_master_handler(struct pm_irq_chip *chip, int master)
{
- u8 blockbits;
+ unsigned int blockbits;
int block_number, i, ret = 0;
- ret = pm8xxx_read_master_irq(chip, master, &blockbits);
+ ret = regmap_read(chip->regmap, SSBI_REG_ADDR_IRQ_M_STATUS1 + master,
+ &blockbits);
if (ret) {
pr_err("Failed to read master %d ret=%d\n", master, ret);
return ret;
@@ -171,12 +165,12 @@ static void pm8xxx_irq_handler(unsigned int irq, struct irq_desc *desc)
{
struct pm_irq_chip *chip = irq_desc_get_handler_data(desc);
struct irq_chip *irq_chip = irq_desc_get_chip(desc);
- u8 root;
+ unsigned int root;
int i, ret, masters = 0;
chained_irq_enter(irq_chip, desc);
- ret = pm8xxx_read_root_irq(chip, &root);
+ ret = regmap_read(chip->regmap, SSBI_REG_ADDR_IRQ_ROOT, &root);
if (ret) {
pr_err("Can't read root status ret=%d\n", ret);
return;
@@ -281,7 +275,7 @@ static struct irq_chip pm8xxx_irq_chip = {
static int pm8xxx_get_irq_stat(struct pm_irq_chip *chip, int irq)
{
int pmirq, rc;
- u8 block, bits, bit;
+ unsigned int block, bits, bit;
unsigned long flags;
struct irq_data *irq_data = irq_get_irq_data(irq);
@@ -292,14 +286,14 @@ static int pm8xxx_get_irq_stat(struct pm_irq_chip *chip, int irq)
spin_lock_irqsave(&chip->pm_irq_lock, flags);
- rc = pm8xxx_writeb(chip->dev, SSBI_REG_ADDR_IRQ_BLK_SEL, block);
+ rc = regmap_write(chip->regmap, SSBI_REG_ADDR_IRQ_BLK_SEL, block);
if (rc) {
pr_err("Failed Selecting block irq=%d pmirq=%d blk=%d rc=%d\n",
irq, pmirq, block, rc);
goto bail_out;
}
- rc = pm8xxx_readb(chip->dev, SSBI_REG_ADDR_IRQ_RT_STATUS, &bits);
+ rc = regmap_read(chip->regmap, SSBI_REG_ADDR_IRQ_RT_STATUS, &bits);
if (rc) {
pr_err("Failed Configuring irq=%d pmirq=%d blk=%d rc=%d\n",
irq, pmirq, block, rc);
@@ -337,7 +331,8 @@ static const struct irq_domain_ops pm8xxx_irq_domain_ops = {
.map = pm8xxx_irq_domain_map,
};
-static int pm8xxx_irq_init(struct platform_device *pdev, unsigned int irq)
+static int pm8xxx_irq_init(struct platform_device *pdev, struct regmap *regmap,
+ unsigned int irq)
{
struct pm_irq_chip *chip;
unsigned int nirqs = 256;
@@ -347,7 +342,7 @@ static int pm8xxx_irq_init(struct platform_device *pdev, unsigned int irq)
if (!chip)
return -ENOMEM;
- chip->dev = &pdev->dev;
+ chip->regmap = regmap;
chip->num_irqs = nirqs;
chip->num_blocks = DIV_ROUND_UP(chip->num_irqs, 8);
chip->num_masters = DIV_ROUND_UP(chip->num_blocks, 8);
@@ -416,11 +411,21 @@ static struct pm8xxx_drvdata pm8921_drvdata = {
.pmic_read_irq_stat = pm8921_read_irq_stat,
};
+static const struct regmap_config ssbi_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .max_register = 0x3ff,
+ .fast_io = true,
+ .reg_read = ssbi_reg_read,
+ .reg_write = ssbi_reg_write
+};
+
static int pm8921_probe(struct platform_device *pdev)
{
struct pm8921 *pmic;
+ struct regmap *regmap;
int rc;
- u8 val;
+ unsigned int val;
unsigned int irq;
u32 rev;
@@ -435,8 +440,13 @@ static int pm8921_probe(struct platform_device *pdev)
return -ENOMEM;
}
+ regmap = devm_regmap_init(&pdev->dev, NULL, pdev->dev.parent,
+ &ssbi_regmap_config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
/* Read PMIC chip revision */
- rc = ssbi_read(pdev->dev.parent, REG_HWREV, &val, sizeof(val));
+ rc = regmap_read(regmap, REG_HWREV, &val);
if (rc) {
pr_err("Failed to read hw rev reg %d:rc=%d\n", REG_HWREV, rc);
return rc;
@@ -445,7 +455,7 @@ static int pm8921_probe(struct platform_device *pdev)
rev = val;
/* Read PMIC chip revision 2 */
- rc = ssbi_read(pdev->dev.parent, REG_HWREV_2, &val, sizeof(val));
+ rc = regmap_read(regmap, REG_HWREV_2, &val);
if (rc) {
pr_err("Failed to read hw rev 2 reg %d:rc=%d\n",
REG_HWREV_2, rc);
@@ -458,7 +468,7 @@ static int pm8921_probe(struct platform_device *pdev)
pm8921_drvdata.pm_chip_data = pmic;
platform_set_drvdata(pdev, &pm8921_drvdata);
- rc = pm8xxx_irq_init(pdev, irq);
+ rc = pm8xxx_irq_init(pdev, regmap, irq);
if (rc)
return rc;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
next prev parent reply other threads:[~2013-12-23 20:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-23 20:45 [PATCH v2 0/7] Modernize pm8921 with irqdomains, regmap, DT Stephen Boyd
2013-12-23 20:45 ` [PATCH v2 1/7] mfd: Move pm8xxx-irq.c contents into only driver that uses it Stephen Boyd
2014-01-06 14:47 ` Lee Jones
2013-12-23 20:45 ` [PATCH v2 2/7] mfd: pm8921: Update for genirq changes Stephen Boyd
2013-12-23 20:45 ` [PATCH v2 3/7] mfd: pm8921: Migrate to irqdomains Stephen Boyd
2014-01-06 15:53 ` Lee Jones
2014-01-06 20:33 ` Stephen Boyd
2014-01-07 8:22 ` Lee Jones
2014-01-07 19:54 ` Stephen Boyd
2014-01-08 8:14 ` Lee Jones
2013-12-23 20:46 ` [PATCH v2 4/7] mfd: ssbi: Add regmap read/write helpers Stephen Boyd
2013-12-24 12:54 ` Mark Brown
2013-12-26 19:41 ` Stephen Boyd
2013-12-28 14:52 ` Mark Brown
2014-01-06 11:50 ` Lee Jones
2014-01-06 22:26 ` Stephen Boyd
2013-12-23 20:46 ` Stephen Boyd [this message]
2013-12-30 12:34 ` [PATCH v2 5/7] mfd: pm8921: Use ssbi regmap Mark Brown
2013-12-23 20:46 ` [PATCH v2 6/7] mfd: pm8921: Add DT match table Stephen Boyd
2014-01-06 11:52 ` Lee Jones
2014-01-06 18:03 ` Stephen Boyd
[not found] ` <1387831563-13535-1-git-send-email-sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2013-12-23 20:46 ` [PATCH v2 7/7] devicetree: bindings: Document PM8921/8058 PMICs Stephen Boyd
2014-01-06 11:53 ` Lee Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1387831563-13535-6-git-send-email-sboyd@codeaurora.org \
--to=sboyd@codeaurora.org \
--cc=broonie@kernel.org \
--cc=lee.jones@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=sameo@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).