From: Frank Wunderlich <frank-w@public-files.de>
To: Lee Jones <lee.jones@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Cc: Frank Wunderlich <frank-w@public-files.de>
Subject: [PATCH] mfd: mt6397: fix probe after changing mt6397-core
Date: Thu, 3 Oct 2019 20:53:23 +0200 [thread overview]
Message-ID: <20191003185323.24646-1-frank-w@public-files.de> (raw)
Part 3 from this series [1] was not merged due to wrong splitting
and breaks mt6323 pmic on bananapi-r2
dmesg prints this line and at least switch is not initialized on bananapi-r2
mt6397 1000d000.pwrap:mt6323: unsupported chip: 0x0
this patch contains only the probe-changes and chip_data structs
from original part 3 by Hsin-Hsiung Wang
Fixes: a4872e80ce7d2a1844328176dbf279d0a2b89bdb mfd: mt6397: Extract IRQ related code from core driver
[1] https://patchwork.kernel.org/project/linux-mediatek/list/?series=164155
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
drivers/mfd/mt6397-core.c | 64 ++++++++++++++++++++++++---------------
1 file changed, 40 insertions(+), 24 deletions(-)
diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 310dae26ddff..b2c325ead1c8 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -129,11 +129,27 @@ static int mt6397_irq_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_irq_suspend,
mt6397_irq_resume);
+struct chip_data {
+ u32 cid_addr;
+ u32 cid_shift;
+};
+
+static const struct chip_data mt6323_core = {
+ .cid_addr = MT6323_CID,
+ .cid_shift = 0,
+};
+
+static const struct chip_data mt6397_core = {
+ .cid_addr = MT6397_CID,
+ .cid_shift = 0,
+};
+
static int mt6397_probe(struct platform_device *pdev)
{
int ret;
unsigned int id;
struct mt6397_chip *pmic;
+ const struct chip_data *pmic_core;
pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
@@ -149,28 +165,30 @@ static int mt6397_probe(struct platform_device *pdev)
if (!pmic->regmap)
return -ENODEV;
- platform_set_drvdata(pdev, pmic);
+ pmic_core = of_device_get_match_data(&pdev->dev);
+ if (!pmic_core)
+ return -ENODEV;
- ret = regmap_read(pmic->regmap, MT6397_CID, &id);
+ ret = regmap_read(pmic->regmap, pmic_core->cid_addr, &id);
if (ret) {
- dev_err(pmic->dev, "Failed to read chip id: %d\n", ret);
+ dev_err(&pdev->dev, "Failed to read chip id: %d\n", ret);
return ret;
}
+ pmic->chip_id = (id >> pmic_core->cid_shift) & 0xff;
+
+ platform_set_drvdata(pdev, pmic);
+
pmic->irq = platform_get_irq(pdev, 0);
if (pmic->irq <= 0)
return pmic->irq;
- switch (id & 0xff) {
- case MT6323_CHIP_ID:
- pmic->int_con[0] = MT6323_INT_CON0;
- pmic->int_con[1] = MT6323_INT_CON1;
- pmic->int_status[0] = MT6323_INT_STATUS0;
- pmic->int_status[1] = MT6323_INT_STATUS1;
- ret = mt6397_irq_init(pmic);
- if (ret)
- return ret;
+ ret = mt6397_irq_init(pmic);
+ if (ret)
+ return ret;
+ switch (pmic->chip_id) {
+ case MT6323_CHIP_ID:
ret = devm_mfd_add_devices(&pdev->dev, -1, mt6323_devs,
ARRAY_SIZE(mt6323_devs), NULL,
0, pmic->irq_domain);
@@ -178,21 +196,13 @@ static int mt6397_probe(struct platform_device *pdev)
case MT6391_CHIP_ID:
case MT6397_CHIP_ID:
- pmic->int_con[0] = MT6397_INT_CON0;
- pmic->int_con[1] = MT6397_INT_CON1;
- pmic->int_status[0] = MT6397_INT_STATUS0;
- pmic->int_status[1] = MT6397_INT_STATUS1;
- ret = mt6397_irq_init(pmic);
- if (ret)
- return ret;
-
ret = devm_mfd_add_devices(&pdev->dev, -1, mt6397_devs,
ARRAY_SIZE(mt6397_devs), NULL,
0, pmic->irq_domain);
break;
default:
- dev_err(&pdev->dev, "unsupported chip: %d\n", id);
+ dev_err(&pdev->dev, "unsupported chip: %d\n", pmic->chip_id);
return -ENODEV;
}
@@ -205,9 +215,15 @@ static int mt6397_probe(struct platform_device *pdev)
}
static const struct of_device_id mt6397_of_match[] = {
- { .compatible = "mediatek,mt6397" },
- { .compatible = "mediatek,mt6323" },
- { }
+ {
+ .compatible = "mediatek,mt6323",
+ .data = &mt6323_core,
+ }, {
+ .compatible = "mediatek,mt6397",
+ .data = &mt6397_core,
+ }, {
+ /* sentinel */
+ }
};
MODULE_DEVICE_TABLE(of, mt6397_of_match);
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2019-10-03 18:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 18:53 Frank Wunderlich [this message]
2019-10-04 15:20 ` [PATCH] mfd: mt6397: fix probe after changing mt6397-core Lee Jones
2019-10-04 15:51 ` Aw: " Frank Wunderlich
2019-10-05 8:16 ` Matthias Brugger
2019-10-07 3:24 ` Hsin-hsiung Wang
2019-10-07 3:32 ` Hsin-hsiung Wang
2019-10-09 5:19 ` Frank Wunderlich
2019-10-16 9:53 ` Lee Jones
2019-10-22 9:46 ` Frank Wunderlich
2019-10-24 7:57 ` 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=20191003185323.24646-1-frank-w@public-files.de \
--to=frank-w@public-files.de \
--cc=hsin-hsiung.wang@mediatek.com \
--cc=lee.jones@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=matthias.bgg@gmail.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).