linux-kernel - [PATCH v2 07/15] extcon: max14577: Choose muic

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Message-id: <1391767487-10017-8-git-send-email-k.kozlowski@samsung.com>
Date:	Fri, 07 Feb 2014 11:04:39 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc:	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH v2 07/15] extcon: max14577: Choose muic_irqs according to
 device type

This patch continues the preparation for adding support for max77836
device to existing max14577 driver.

During probe choose muic_irqs according to device type. Currently there
are only "max14577_muic_irqs" but later patch will add max77836
interrupts.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc: Kyungmin Park <kyungmin.park@...sung.com>
Cc: Marek Szyprowski <m.szyprowski@...sung.com>
Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
Tested-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/extcon/extcon-max14577.c |   65 ++++++++++++++++++++++----------------
 1 file changed, 37 insertions(+), 28 deletions(-)

diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index fb343f4042d2..e986a9b92b60 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -39,6 +39,29 @@ enum max14577_muic_status {
 	MAX14577_MUIC_STATUS_END,
 };
 
+/**
+ * struct max14577_muic_irq
+ * @irq: the index of irq list of MUIC device.
+ * @name: the name of irq.
+ * @virq: the virtual irq to use irq domain
+ */
+struct max14577_muic_irq {
+	unsigned int irq;
+	const char *name;
+	unsigned int virq;
+};
+
+static struct max14577_muic_irq max14577_muic_irqs[] = {
+	{ MAXIM_IRQ_INT1_ADC,		"muic-ADC" },
+	{ MAXIM_IRQ_INT1_ADCLOW,	"muic-ADCLOW" },
+	{ MAXIM_IRQ_INT1_ADCERR,	"muic-ADCError" },
+	{ MAXIM_IRQ_INT2_CHGTYP,	"muic-CHGTYP" },
+	{ MAXIM_IRQ_INT2_CHGDETRUN,	"muic-CHGDETRUN" },
+	{ MAXIM_IRQ_INT2_DCDTMR,	"muic-DCDTMR" },
+	{ MAXIM_IRQ_INT2_DBCHG,		"muic-DBCHG" },
+	{ MAXIM_IRQ_INT2_VBVOLT,	"muic-VBVOLT" },
+};
+
 struct max14577_muic_info {
 	struct device *dev;
 	struct maxim_core *maxim_core;
@@ -47,6 +70,8 @@ struct max14577_muic_info {
 	int prev_chg_type;
 	u8 status[MAX14577_MUIC_STATUS_END];
 
+	struct max14577_muic_irq *muic_irqs;
+	unsigned int muic_irqs_num;
 	bool irq_adc;
 	bool irq_chg;
 	struct work_struct irq_work;
@@ -73,29 +98,6 @@ enum max14577_muic_cable_group {
 	MAX14577_CABLE_GROUP_CHG,
 };
 
-/**
- * struct max14577_muic_irq
- * @irq: the index of irq list of MUIC device.
- * @name: the name of irq.
- * @virq: the virtual irq to use irq domain
- */
-struct max14577_muic_irq {
-	unsigned int irq;
-	const char *name;
-	unsigned int virq;
-};
-
-static struct max14577_muic_irq max14577_muic_irqs[] = {
-	{ MAXIM_IRQ_INT1_ADC,		"muic-ADC" },
-	{ MAXIM_IRQ_INT1_ADCLOW,	"muic-ADCLOW" },
-	{ MAXIM_IRQ_INT1_ADCERR,	"muic-ADCError" },
-	{ MAXIM_IRQ_INT2_CHGTYP,	"muic-CHGTYP" },
-	{ MAXIM_IRQ_INT2_CHGDETRUN,	"muic-CHGDETRUN" },
-	{ MAXIM_IRQ_INT2_DCDTMR,	"muic-DCDTMR" },
-	{ MAXIM_IRQ_INT2_DBCHG,		"muic-DBCHG" },
-	{ MAXIM_IRQ_INT2_VBVOLT,	"muic-VBVOLT" },
-};
-
 /* Define supported accessory type */
 enum max14577_muic_acc_type {
 	MAX14577_MUIC_ADC_GROUND = 0x0,
@@ -541,9 +543,9 @@ static irqreturn_t max14577_muic_irq_handler(int irq, void *data)
 	 * However we only need to know whether it was ADC, charger
 	 * or both interrupts so decode IRQ and turn on proper flags.
 	 */
-	for (i = 0; i < ARRAY_SIZE(max14577_muic_irqs); i++)
-		if (irq == max14577_muic_irqs[i].virq)
-			irq_type = max14577_muic_irqs[i].irq;
+	for (i = 0; i < info->muic_irqs_num; i++)
+		if (irq == info->muic_irqs[i].virq)
+			irq_type = info->muic_irqs[i].irq;
 
 	switch (irq_type) {
 	case MAXIM_IRQ_INT1_ADC:
@@ -646,9 +648,16 @@ static int max14577_muic_probe(struct platform_device *pdev)
 
 	INIT_WORK(&info->irq_work, max14577_muic_irq_work);
 
+	switch (maxim_core->dev_type) {
+	case MAXIM_DEVICE_TYPE_MAX14577:
+	default:
+		info->muic_irqs = max14577_muic_irqs;
+		info->muic_irqs_num = ARRAY_SIZE(max14577_muic_irqs);
+	}
+
 	/* Support irq domain for max14577 MUIC device */
-	for (i = 0; i < ARRAY_SIZE(max14577_muic_irqs); i++) {
-		struct max14577_muic_irq *muic_irq = &max14577_muic_irqs[i];
+	for (i = 0; i < info->muic_irqs_num; i++) {
+		struct max14577_muic_irq *muic_irq = &info->muic_irqs[i];
 		unsigned int virq = 0;
 
 		virq = regmap_irq_get_virq(maxim_core->irq_data_muic,
-- 
1.7.9.5

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