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authorWolfram Sang <wsa+renesas@sang-engineering.com>2019-04-03 14:40:14 +0200
committerWolfram Sang <wsa@the-dreams.de>2019-04-16 13:08:14 +0200
commit08960b022fb6cf1f866be76388c0bed9adab25c1 (patch)
tree07ab4d57415f854851085419bbae0017aeeb809c /drivers/i2c
parent89f845a6dcd38a2b83b995cb6a8c7ef3e5abfd3a (diff)
downloadlinux-08960b022fb6cf1f866be76388c0bed9adab25c1.tar.bz2
i2c: tegra-bpmp: convert to use new atomic callbacks
The driver did handle this internally, convert it to use the new callbacks. Reviewed-by: Timo Alho <talho@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-tegra-bpmp.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-tegra-bpmp.c b/drivers/i2c/busses/i2c-tegra-bpmp.c
index f6cd35d0a2ac..9bb085793a0c 100644
--- a/drivers/i2c/busses/i2c-tegra-bpmp.c
+++ b/drivers/i2c/busses/i2c-tegra-bpmp.c
@@ -207,7 +207,8 @@ static int tegra_bpmp_i2c_msg_len_check(struct i2c_msg *msgs, unsigned int num)
static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
struct mrq_i2c_request *request,
- struct mrq_i2c_response *response)
+ struct mrq_i2c_response *response,
+ bool atomic)
{
struct tegra_bpmp_message msg;
int err;
@@ -222,7 +223,7 @@ static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
msg.rx.data = response;
msg.rx.size = sizeof(*response);
- if (irqs_disabled())
+ if (atomic)
err = tegra_bpmp_transfer_atomic(i2c->bpmp, &msg);
else
err = tegra_bpmp_transfer(i2c->bpmp, &msg);
@@ -230,8 +231,9 @@ static int tegra_bpmp_i2c_msg_xfer(struct tegra_bpmp_i2c *i2c,
return err;
}
-static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
- struct i2c_msg *msgs, int num)
+static int tegra_bpmp_i2c_xfer_common(struct i2c_adapter *adapter,
+ struct i2c_msg *msgs, int num,
+ bool atomic)
{
struct tegra_bpmp_i2c *i2c = i2c_get_adapdata(adapter);
struct mrq_i2c_response response;
@@ -253,7 +255,7 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
return err;
}
- err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response);
+ err = tegra_bpmp_i2c_msg_xfer(i2c, &request, &response, atomic);
if (err < 0) {
dev_err(i2c->dev, "failed to transfer message: %d\n", err);
return err;
@@ -268,6 +270,18 @@ static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
return num;
}
+static int tegra_bpmp_i2c_xfer(struct i2c_adapter *adapter,
+ struct i2c_msg *msgs, int num)
+{
+ return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, false);
+}
+
+static int tegra_bpmp_i2c_xfer_atomic(struct i2c_adapter *adapter,
+ struct i2c_msg *msgs, int num)
+{
+ return tegra_bpmp_i2c_xfer_common(adapter, msgs, num, true);
+}
+
static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
@@ -276,6 +290,7 @@ static u32 tegra_bpmp_i2c_func(struct i2c_adapter *adapter)
static const struct i2c_algorithm tegra_bpmp_i2c_algo = {
.master_xfer = tegra_bpmp_i2c_xfer,
+ .master_xfer_atomic = tegra_bpmp_i2c_xfer_atomic,
.functionality = tegra_bpmp_i2c_func,
};