修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/i2c/busses/i2c-tegra-bpmp.c
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@@ -1,21 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * drivers/i2c/busses/i2c-tegra-bpmp.c
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  *
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  * Copyright (c) 2016 NVIDIA Corporation.  All rights reserved.
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  *
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  * Author: Shardar Shariff Md <smohammed@nvidia.com>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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 #include <linux/err.h>
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@@ -207,7 +196,8 @@
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 static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
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 				   struct mrq_i2c_request *request,
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-				   struct mrq_i2c_response *response)
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+				   struct mrq_i2c_response *response,
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+				   bool atomic)
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 {
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 	struct tegra_bpmp_message msg;
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 	int err;
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@@ -222,7 +212,7 @@
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 	msg.rx.data = response;
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 	msg.rx.size = sizeof(*response);
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-	if (irqs_disabled())
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+	if (atomic)
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 		err = tegra_bpmp_transfer_atomic(i2c->bpmp, &msg);
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 	else
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 		err = tegra_bpmp_transfer(i2c->bpmp, &msg);
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@@ -230,8 +220,9 @@
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 	return err;
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 }
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-static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
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-			       struct i2c_msg *msgs, int num)
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+static int tegra_bpmp_i2c_xfer_common(struct i2c_adapter *adapter,
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+				      struct i2c_msg *msgs, int num,
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+				      bool atomic)
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 {
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 	struct tegra_bpmp_i2c *i2c = i2c_get_adapdata(adapter);
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 	struct mrq_i2c_response response;
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@@ -253,7 +244,7 @@
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 		return err;
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 	}
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-	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response);
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+	err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response, atomic);
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 	if (err < 0) {
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 		dev_err(i2c->dev, "failed to transfer message: %d\n", err);
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 		return err;
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@@ -268,6 +259,18 @@
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 	return num;
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 }
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+static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
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+			       struct i2c_msg *msgs, int num)
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+{
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+	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
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+}
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+
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+static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
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+				      struct i2c_msg *msgs, int num)
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+{
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+	return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, true);
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+}
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+
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 static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
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 {
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 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
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@@ -276,6 +279,7 @@
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 static const struct i2c_algorithm tegra_bpmp_i2c_algo = {
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 	.master_xfer = tegra_bpmp_i2c_xfer,
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+	.master_xfer_atomic = tegra_bpmp_i2c_xfer_atomic,
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 	.functionality = tegra_bpmp_i2c_func,
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 };
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