From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/uio/uio_fsl_elbc_gpcm.c | 36 +++++++++++++-----------------------
1 files changed, 13 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/uio/uio_fsl_elbc_gpcm.c b/kernel/drivers/uio/uio_fsl_elbc_gpcm.c
index bbc17ef..be8a690 100644
--- a/kernel/drivers/uio/uio_fsl_elbc_gpcm.c
+++ b/kernel/drivers/uio/uio_fsl_elbc_gpcm.c
@@ -68,14 +68,20 @@
static ssize_t reg_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count);
-DEVICE_ATTR(reg_br, S_IRUGO|S_IWUSR|S_IWGRP, reg_show, reg_store);
-DEVICE_ATTR(reg_or, S_IRUGO|S_IWUSR|S_IWGRP, reg_show, reg_store);
+static DEVICE_ATTR(reg_br, 0664, reg_show, reg_store);
+static DEVICE_ATTR(reg_or, 0664, reg_show, reg_store);
+
+static struct attribute *uio_fsl_elbc_gpcm_attrs[] = {
+ &dev_attr_reg_br.attr,
+ &dev_attr_reg_or.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(uio_fsl_elbc_gpcm);
static ssize_t reg_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct uio_info *info = platform_get_drvdata(pdev);
+ struct uio_info *info = dev_get_drvdata(dev);
struct fsl_elbc_gpcm *priv = info->priv;
struct fsl_lbc_bank *bank = &priv->lbc->bank[priv->bank];
@@ -94,8 +100,7 @@
static ssize_t reg_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct uio_info *info = platform_get_drvdata(pdev);
+ struct uio_info *info = dev_get_drvdata(dev);
struct fsl_elbc_gpcm *priv = info->priv;
struct fsl_lbc_bank *bank = &priv->lbc->bank[priv->bank];
unsigned long val;
@@ -382,8 +387,7 @@
}
/* set all UIO data */
- if (node->name)
- info->mem[0].name = kstrdup(node->name, GFP_KERNEL);
+ info->mem[0].name = kasprintf(GFP_KERNEL, "%pOFn", node);
info->mem[0].addr = res.start;
info->mem[0].size = resource_size(&res);
info->mem[0].memtype = UIO_MEM_PHYS;
@@ -414,25 +418,12 @@
/* store private data */
platform_set_drvdata(pdev, info);
- /* create sysfs files */
- ret = device_create_file(priv->dev, &dev_attr_reg_br);
- if (ret)
- goto out_err3;
- ret = device_create_file(priv->dev, &dev_attr_reg_or);
- if (ret)
- goto out_err4;
-
dev_info(priv->dev,
"eLBC/GPCM device (%s) at 0x%llx, bank %d, irq=%d\n",
priv->name, (unsigned long long)res.start, priv->bank,
irq != NO_IRQ ? irq : -1);
return 0;
-out_err4:
- device_remove_file(priv->dev, &dev_attr_reg_br);
-out_err3:
- platform_set_drvdata(pdev, NULL);
- uio_unregister_device(info);
out_err2:
if (priv->shutdown)
priv->shutdown(info, true);
@@ -451,8 +442,6 @@
struct uio_info *info = platform_get_drvdata(pdev);
struct fsl_elbc_gpcm *priv = info->priv;
- device_remove_file(priv->dev, &dev_attr_reg_or);
- device_remove_file(priv->dev, &dev_attr_reg_br);
platform_set_drvdata(pdev, NULL);
uio_unregister_device(info);
if (priv->shutdown)
@@ -477,6 +466,7 @@
.driver = {
.name = "fsl,elbc-gpcm-uio",
.of_match_table = uio_fsl_elbc_gpcm_match,
+ .dev_groups = uio_fsl_elbc_gpcm_groups,
},
.probe = uio_fsl_elbc_gpcm_probe,
.remove = uio_fsl_elbc_gpcm_remove,
--
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