brcm63xx: use a lookup for bcmcia's ready gpio

Should fix pcmcia on BCM6348 and BCM6358 after switching to DT-probed
gpio controllers.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 44995

2 files changed, 118 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.18/379-MIPS-BCM63XX-provide-a-gpio-lookup-for-the-pcmcia-re.patch b/target/linux/brcm63xx/patches-3.18/379-MIPS-BCM63XX-provide-a-gpio-lookup-for-the-pcmcia-re.patch
new file mode 100644
index 0000000000..b5719990bd
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.18/379-MIPS-BCM63XX-provide-a-gpio-lookup-for-the-pcmcia-re.patch
@@ -0,0 +1,59 @@
+From 1647cccc871bf43876c3df9852869680880d054c Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Wed, 25 Mar 2015 13:52:02 +0100
+Subject: [PATCH 1/2] MIPS: BCM63XX: provide a gpio lookup for the pcmcia
+ ready gpio
+
+To prepare for a time when gpiobases don't need to be fixed anymore.
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ arch/mips/bcm63xx/dev-pcmcia.c |   13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/arch/mips/bcm63xx/dev-pcmcia.c
++++ b/arch/mips/bcm63xx/dev-pcmcia.c
+@@ -10,6 +10,7 @@
+ #include <linux/kernel.h>
+ #include <asm/bootinfo.h>
+ #include <linux/platform_device.h>
++#include <linux/gpio/machine.h>
+ #include <bcm63xx_cs.h>
+ #include <bcm63xx_cpu.h>
+ #include <bcm63xx_dev_pcmcia.h>
+@@ -101,6 +102,14 @@ static const struct {
+ 	},
+ };
+ 
++static struct gpiod_lookup_table pcmcia_gpios_table = {
++	.dev_id = "bcm63xx_pcmcia.0",
++	.table = {
++		GPIO_LOOKUP("bcm63xx-gpio.0", 0, "ready", GPIO_ACTIVE_HIGH),
++		{ },
++	},
++};
++
+ int __init bcm63xx_pcmcia_register(void)
+ {
+ 	int ret, i;
+@@ -112,16 +121,20 @@ int __init bcm63xx_pcmcia_register(void)
+ 	switch (bcm63xx_get_cpu_id()) {
+ 	case BCM6348_CPU_ID:
+ 		pd.ready_gpio = 22;
++		pcmcia_gpios_table.table[0].chip_hwnum = 22;
+ 		break;
+ 
+ 	case BCM6358_CPU_ID:
+ 		pd.ready_gpio = 18;
++		pcmcia_gpios_table.table[0].chip_hwnum = 18;
+ 		break;
+ 
+ 	default:
+ 		return -ENODEV;
+ 	}
+ 
++	gpiod_add_lookup_table(&pcmcia_gpios_table);
++
+ 	pcmcia_resources[0].start = bcm63xx_regset_address(RSET_PCMCIA);
+ 	pcmcia_resources[0].end = pcmcia_resources[0].start +
+ 		RSET_PCMCIA_SIZE - 1;
diff --git a/target/linux/brcm63xx/patches-3.18/380-pcmcia-bcm63xx_pmcia-use-the-new-named-gpio.patch b/target/linux/brcm63xx/patches-3.18/380-pcmcia-bcm63xx_pmcia-use-the-new-named-gpio.patch
new file mode 100644
index 0000000000..524ca1aa0b
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.18/380-pcmcia-bcm63xx_pmcia-use-the-new-named-gpio.patch
@@ -0,0 +1,59 @@
+From c4e04f1c54928a49b227a5420d38b18226838775 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Wed, 25 Mar 2015 13:54:56 +0100
+Subject: [PATCH 2/2] pcmcia: bcm63xx_pmcia: use the new named gpio
+
+Use the new named gpio instead of relying on the hardware gpio numbers
+matching the virtual gpio numbers.
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ drivers/pcmcia/bcm63xx_pcmcia.c |    9 ++++++++-
+ drivers/pcmcia/bcm63xx_pcmcia.h |    4 ++++
+ 2 files changed, 12 insertions(+), 1 deletion(-)
+
+--- a/drivers/pcmcia/bcm63xx_pcmcia.c
++++ b/drivers/pcmcia/bcm63xx_pcmcia.c
+@@ -237,7 +237,7 @@ static unsigned int __get_socket_status(
+ 		stat |= SS_XVCARD;
+ 	stat |= SS_POWERON;
+ 
+-	if (gpio_get_value(skt->pd->ready_gpio))
++	if (gpiod_get_value(skt->ready_gpio))
+ 		stat |= SS_READY;
+ 
+ 	return stat;
+@@ -373,6 +373,13 @@ static int bcm63xx_drv_pcmcia_probe(stru
+ 		goto err;
+ 	}
+ 
++	/* get ready gpio */
++	skt->ready_gpio = devm_gpiod_get(&pdev->dev, "ready", GPIOD_IN);
++	if (IS_ERR(skt->ready_gpio)) {
++		ret = PTR_ERR(skt->ready_gpio);
++		goto err;
++	}
++
+ 	/* resources are static */
+ 	sock->resource_ops = &pccard_static_ops;
+ 	sock->ops = &bcm63xx_pcmcia_operations;
+--- a/drivers/pcmcia/bcm63xx_pcmcia.h
++++ b/drivers/pcmcia/bcm63xx_pcmcia.h
+@@ -3,6 +3,7 @@
+ 
+ #include <linux/types.h>
+ #include <linux/timer.h>
++#include <linux/gpio/consumer.h>
+ #include <pcmcia/ss.h>
+ #include <bcm63xx_dev_pcmcia.h>
+ 
+@@ -55,6 +56,9 @@ struct bcm63xx_pcmcia_socket {
+ 
+ 	/* base address of io memory */
+ 	void __iomem *io_base;
++
++	/* ready gpio */
++	struct gpio_desc *ready_gpio;
+ };
+ 
+ #endif /* BCM63XX_PCMCIA_H_ */