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authorSuman Anna <s-anna@ti.com>2016-04-06 20:37:37 +0300
committerJassi Brar <jaswinder.singh@linaro.org>2016-04-26 07:49:37 +0300
commit4899f78a3dccda41ffdaa1a2cbf78209753e0f70 (patch)
treea90cedd796aabac6de65c270ff4bd5ec78f6b28a /drivers/mailbox
parentc3b46c73264b03000d1e18b22f5caf63332547c9 (diff)
downloadlinux-4899f78a3dccda41ffdaa1a2cbf78209753e0f70.tar.xz
mailbox/omap: drop legacy platform device support
OMAP mailbox devices can no longer be created in legacy non-DT mode, all the relevant code has been cleaned up. The OMAP mailbox driver will only support devices created from DT going forward, so drop the legacy platform device support from the driver. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'drivers/mailbox')
-rw-r--r--drivers/mailbox/omap-mailbox.c101
1 files changed, 41 insertions, 60 deletions
diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
index b7f636f15cac..8754d810ef05 100644
--- a/drivers/mailbox/omap-mailbox.c
+++ b/drivers/mailbox/omap-mailbox.c
@@ -2,7 +2,7 @@
* OMAP mailbox driver
*
* Copyright (C) 2006-2009 Nokia Corporation. All rights reserved.
- * Copyright (C) 2013-2014 Texas Instruments Inc.
+ * Copyright (C) 2013-2016 Texas Instruments Incorporated - http://www.ti.com
*
* Contact: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
* Suman Anna <s-anna@ti.com>
@@ -33,7 +33,6 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
-#include <linux/platform_data/mailbox-omap.h>
#include <linux/omap-mailbox.h>
#include <linux/mailbox_controller.h>
#include <linux/mailbox_client.h>
@@ -69,6 +68,10 @@
#define MBOX_NR_REGS (MBOX_REG_SIZE / sizeof(u32))
#define OMAP4_MBOX_NR_REGS (OMAP4_MBOX_REG_SIZE / sizeof(u32))
+/* Interrupt register configuration types */
+#define MBOX_INTR_CFG_TYPE1 0
+#define MBOX_INTR_CFG_TYPE2 1
+
struct omap_mbox_fifo {
unsigned long msg;
unsigned long fifo_stat;
@@ -696,8 +699,6 @@ static int omap_mbox_probe(struct platform_device *pdev)
int ret;
struct mbox_chan *chnls;
struct omap_mbox **list, *mbox, *mboxblk;
- struct omap_mbox_pdata *pdata = pdev->dev.platform_data;
- struct omap_mbox_dev_info *info = NULL;
struct omap_mbox_fifo_info *finfo, *finfoblk;
struct omap_mbox_device *mdev;
struct omap_mbox_fifo *fifo;
@@ -710,36 +711,26 @@ static int omap_mbox_probe(struct platform_device *pdev)
u32 l;
int i;
- if (!node && (!pdata || !pdata->info_cnt || !pdata->info)) {
- pr_err("%s: platform not supported\n", __func__);
+ if (!node) {
+ pr_err("%s: only DT-based devices are supported\n", __func__);
return -ENODEV;
}
- if (node) {
- match = of_match_device(omap_mailbox_of_match, &pdev->dev);
- if (!match)
- return -ENODEV;
- intr_type = (u32)match->data;
+ match = of_match_device(omap_mailbox_of_match, &pdev->dev);
+ if (!match)
+ return -ENODEV;
+ intr_type = (u32)match->data;
- if (of_property_read_u32(node, "ti,mbox-num-users",
- &num_users))
- return -ENODEV;
+ if (of_property_read_u32(node, "ti,mbox-num-users", &num_users))
+ return -ENODEV;
- if (of_property_read_u32(node, "ti,mbox-num-fifos",
- &num_fifos))
- return -ENODEV;
+ if (of_property_read_u32(node, "ti,mbox-num-fifos", &num_fifos))
+ return -ENODEV;
- info_count = of_get_available_child_count(node);
- if (!info_count) {
- dev_err(&pdev->dev, "no available mbox devices found\n");
- return -ENODEV;
- }
- } else { /* non-DT device creation */
- info_count = pdata->info_cnt;
- info = pdata->info;
- intr_type = pdata->intr_type;
- num_users = pdata->num_users;
- num_fifos = pdata->num_fifos;
+ info_count = of_get_available_child_count(node);
+ if (!info_count) {
+ dev_err(&pdev->dev, "no available mbox devices found\n");
+ return -ENODEV;
}
finfoblk = devm_kzalloc(&pdev->dev, info_count * sizeof(*finfoblk),
@@ -750,38 +741,28 @@ static int omap_mbox_probe(struct platform_device *pdev)
finfo = finfoblk;
child = NULL;
for (i = 0; i < info_count; i++, finfo++) {
- if (node) {
- child = of_get_next_available_child(node, child);
- ret = of_property_read_u32_array(child, "ti,mbox-tx",
- tmp, ARRAY_SIZE(tmp));
- if (ret)
- return ret;
- finfo->tx_id = tmp[0];
- finfo->tx_irq = tmp[1];
- finfo->tx_usr = tmp[2];
-
- ret = of_property_read_u32_array(child, "ti,mbox-rx",
- tmp, ARRAY_SIZE(tmp));
- if (ret)
- return ret;
- finfo->rx_id = tmp[0];
- finfo->rx_irq = tmp[1];
- finfo->rx_usr = tmp[2];
-
- finfo->name = child->name;
-
- if (of_find_property(child, "ti,mbox-send-noirq", NULL))
- finfo->send_no_irq = true;
- } else {
- finfo->tx_id = info->tx_id;
- finfo->rx_id = info->rx_id;
- finfo->tx_usr = info->usr_id;
- finfo->tx_irq = info->irq_id;
- finfo->rx_usr = info->usr_id;
- finfo->rx_irq = info->irq_id;
- finfo->name = info->name;
- info++;
- }
+ child = of_get_next_available_child(node, child);
+ ret = of_property_read_u32_array(child, "ti,mbox-tx", tmp,
+ ARRAY_SIZE(tmp));
+ if (ret)
+ return ret;
+ finfo->tx_id = tmp[0];
+ finfo->tx_irq = tmp[1];
+ finfo->tx_usr = tmp[2];
+
+ ret = of_property_read_u32_array(child, "ti,mbox-rx", tmp,
+ ARRAY_SIZE(tmp));
+ if (ret)
+ return ret;
+ finfo->rx_id = tmp[0];
+ finfo->rx_irq = tmp[1];
+ finfo->rx_usr = tmp[2];
+
+ finfo->name = child->name;
+
+ if (of_find_property(child, "ti,mbox-send-noirq", NULL))
+ finfo->send_no_irq = true;
+
if (finfo->tx_id >= num_fifos || finfo->rx_id >= num_fifos ||
finfo->tx_usr >= num_users || finfo->rx_usr >= num_users)
return -EINVAL;